/* ==========================================================================
   Material Design 3 — Tema base
   Sistema de gestión de citas de psicología
   --------------------------------------------------------------------------
   Los tokens de COLOR (--md-sys-color-*) NO se definen aquí: los inyecta
   includes/md3_theme.php derivándolos del color de marca de cada tenant
   (tabla configuracion_tenant) mediante Md3Palette. Este archivo define el
   resto del sistema — tipografía, forma, elevación, espaciado, motion — y
   las clases de componente que los consumen.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. TOKENS DE SISTEMA
   -------------------------------------------------------------------------- */

:root {
  /* --- Tipografía: escala tipográfica MD3 ------------------------------- */
  --md-sys-typescale-font: 'Montserrat', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --md-sys-typescale-font-brand: var(--md-sys-typescale-font);

  --md-sys-typescale-display-large-size: 3.5625rem;   /* 57px */
  --md-sys-typescale-display-large-line: 4rem;        /* 64px */
  --md-sys-typescale-display-medium-size: 2.8125rem;  /* 45px */
  --md-sys-typescale-display-medium-line: 3.25rem;    /* 52px */
  --md-sys-typescale-display-small-size: 2.25rem;     /* 36px */
  --md-sys-typescale-display-small-line: 2.75rem;     /* 44px */

  --md-sys-typescale-headline-large-size: 2rem;       /* 32px */
  --md-sys-typescale-headline-large-line: 2.5rem;     /* 40px */
  --md-sys-typescale-headline-medium-size: 1.75rem;   /* 28px */
  --md-sys-typescale-headline-medium-line: 2.25rem;   /* 36px */
  --md-sys-typescale-headline-small-size: 1.5rem;     /* 24px */
  --md-sys-typescale-headline-small-line: 2rem;       /* 32px */

  --md-sys-typescale-title-large-size: 1.375rem;      /* 22px */
  --md-sys-typescale-title-large-line: 1.75rem;       /* 28px */
  --md-sys-typescale-title-medium-size: 1rem;         /* 16px */
  --md-sys-typescale-title-medium-line: 1.5rem;       /* 24px */
  --md-sys-typescale-title-small-size: 0.875rem;      /* 14px */
  --md-sys-typescale-title-small-line: 1.25rem;       /* 20px */

  --md-sys-typescale-body-large-size: 1rem;           /* 16px */
  --md-sys-typescale-body-large-line: 1.5rem;         /* 24px */
  --md-sys-typescale-body-medium-size: 0.875rem;      /* 14px */
  --md-sys-typescale-body-medium-line: 1.25rem;       /* 20px */
  --md-sys-typescale-body-small-size: 0.75rem;        /* 12px */
  --md-sys-typescale-body-small-line: 1rem;           /* 16px */

  --md-sys-typescale-label-large-size: 0.875rem;      /* 14px */
  --md-sys-typescale-label-large-line: 1.25rem;       /* 20px */
  --md-sys-typescale-label-medium-size: 0.75rem;      /* 12px */
  --md-sys-typescale-label-medium-line: 1rem;         /* 16px */
  --md-sys-typescale-label-small-size: 0.6875rem;     /* 11px */
  --md-sys-typescale-label-small-line: 1rem;          /* 16px */

  /* --- Forma: radios MD3 ------------------------------------------------ */
  /* Esquinas más redondeadas en todo el sistema (petición de diseño). */
  --md-sys-shape-corner-none: 0;
  --md-sys-shape-corner-extra-small: 8px;
  --md-sys-shape-corner-small: 12px;
  --md-sys-shape-corner-medium: 16px;
  --md-sys-shape-corner-large: 20px;
  --md-sys-shape-corner-extra-large: 28px;
  --md-sys-shape-corner-full: 9999px;

  /* --- Espaciado: ritmo de 8px ------------------------------------------ */
  --md-sys-spacing-0: 0;
  --md-sys-spacing-1: 4px;    /* medio paso */
  --md-sys-spacing-2: 8px;
  --md-sys-spacing-3: 12px;
  --md-sys-spacing-4: 16px;
  --md-sys-spacing-5: 24px;
  --md-sys-spacing-6: 32px;
  --md-sys-spacing-7: 40px;
  --md-sys-spacing-8: 48px;
  --md-sys-spacing-9: 64px;

  /* --- Opacidad de state layers (§ Interaction states) ------------------- */
  --md-sys-state-hover-opacity: 0.08;
  --md-sys-state-focus-opacity: 0.12;
  --md-sys-state-pressed-opacity: 0.12;
  --md-sys-state-dragged-opacity: 0.16;
  --md-sys-state-disabled-content-opacity: 0.38;
  --md-sys-state-disabled-container-opacity: 0.12;

  /* --- Motion: curvas y duraciones MD3 ---------------------------------- */
  --md-sys-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --md-sys-motion-easing-standard-decelerate: cubic-bezier(0, 0, 0, 1);
  --md-sys-motion-easing-standard-accelerate: cubic-bezier(0.3, 0, 1, 1);
  --md-sys-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --md-sys-motion-duration-short2: 100ms;
  --md-sys-motion-duration-short4: 200ms;
  --md-sys-motion-duration-medium2: 300ms;
  --md-sys-motion-duration-long2: 500ms;
}

/* --------------------------------------------------------------------------
   2. ELEVACIÓN
   Niveles MD3 0/1/3/6/8/12dp. Cada nivel son dos sombras (key + ambient).
   La sombra usa --md-sys-color-shadow, así que se adapta al modo oscuro.
   -------------------------------------------------------------------------- */

:root {
  --md-sys-elevation-0: none;
  --md-sys-elevation-1:
    0 1px 2px 0 rgb(var(--md-sys-color-shadow-rgb) / 0.30),
    0 1px 3px 1px rgb(var(--md-sys-color-shadow-rgb) / 0.15);
  --md-sys-elevation-2:
    0 1px 2px 0 rgb(var(--md-sys-color-shadow-rgb) / 0.30),
    0 2px 6px 2px rgb(var(--md-sys-color-shadow-rgb) / 0.15);
  --md-sys-elevation-3:
    0 4px 8px 3px rgb(var(--md-sys-color-shadow-rgb) / 0.15),
    0 1px 3px 0 rgb(var(--md-sys-color-shadow-rgb) / 0.30);
  --md-sys-elevation-4:
    0 6px 10px 4px rgb(var(--md-sys-color-shadow-rgb) / 0.15),
    0 2px 3px 0 rgb(var(--md-sys-color-shadow-rgb) / 0.30);
  --md-sys-elevation-5:
    0 8px 12px 6px rgb(var(--md-sys-color-shadow-rgb) / 0.15),
    0 4px 4px 0 rgb(var(--md-sys-color-shadow-rgb) / 0.30);
  --md-sys-elevation-6:
    0 12px 17px 2px rgb(var(--md-sys-color-shadow-rgb) / 0.15),
    0 5px 22px 4px rgb(var(--md-sys-color-shadow-rgb) / 0.12);
}

/* Alias por dp, para leer la intención en el markup. */
.md-elevation-0  { box-shadow: var(--md-sys-elevation-0); }
.md-elevation-1  { box-shadow: var(--md-sys-elevation-1); }  /*  1dp */
.md-elevation-3  { box-shadow: var(--md-sys-elevation-2); }  /*  3dp */
.md-elevation-6  { box-shadow: var(--md-sys-elevation-3); }  /*  6dp */
.md-elevation-8  { box-shadow: var(--md-sys-elevation-4); }  /*  8dp */
.md-elevation-12 { box-shadow: var(--md-sys-elevation-5); }  /* 12dp */

/* --------------------------------------------------------------------------
   3. BASE
   -------------------------------------------------------------------------- */

html {
  -webkit-text-size-adjust: 100%;
  /* Escala global -10%: reduce tipografía y espaciados en rem de todo el
     sistema (tokens del tema + utilidades Tailwind, que usan rem). */
  font-size: 90%;
}

body {
  margin: 0;
  background-color: var(--md-sys-color-background);
  color: var(--md-sys-color-on-surface);
  font-family: var(--md-sys-typescale-font);
  font-size: var(--md-sys-typescale-body-medium-size);
  line-height: var(--md-sys-typescale-body-medium-line);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition:
    background-color var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
    color var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}

/* El cambio claro/oscuro no debe animar cada caja de la página. */
.md-theme-switching * {
  transition: none !important;
}

::selection {
  background-color: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

/* Scrollbar acorde al tema */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--md-sys-color-outline-variant) transparent;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--md-sys-color-outline); }

/* --------------------------------------------------------------------------
   4. TIPOGRAFÍA — clases de la escala MD3
   -------------------------------------------------------------------------- */

.md-display-large,
.md-display-medium,
.md-display-small,
.md-headline-large,
.md-headline-medium,
.md-headline-small,
.md-title-large,
.md-title-medium,
.md-title-small,
.md-body-large,
.md-body-medium,
.md-body-small,
.md-label-large,
.md-label-medium,
.md-label-small {
  font-family: var(--md-sys-typescale-font);
  margin: 0;
}

.md-display-large  { font-size: var(--md-sys-typescale-display-large-size);  line-height: var(--md-sys-typescale-display-large-line);  font-weight: 400; letter-spacing: -0.25px; }
.md-display-medium { font-size: var(--md-sys-typescale-display-medium-size); line-height: var(--md-sys-typescale-display-medium-line); font-weight: 400; letter-spacing: 0; }
.md-display-small  { font-size: var(--md-sys-typescale-display-small-size);  line-height: var(--md-sys-typescale-display-small-line);  font-weight: 400; letter-spacing: 0; }

.md-headline-large  { font-size: var(--md-sys-typescale-headline-large-size);  line-height: var(--md-sys-typescale-headline-large-line);  font-weight: 400; letter-spacing: 0; }
.md-headline-medium { font-size: var(--md-sys-typescale-headline-medium-size); line-height: var(--md-sys-typescale-headline-medium-line); font-weight: 400; letter-spacing: 0; }
.md-headline-small  { font-size: var(--md-sys-typescale-headline-small-size);  line-height: var(--md-sys-typescale-headline-small-line);  font-weight: 400; letter-spacing: 0; }

.md-title-large  { font-size: var(--md-sys-typescale-title-large-size);  line-height: var(--md-sys-typescale-title-large-line);  font-weight: 500; letter-spacing: 0; }
.md-title-medium { font-size: var(--md-sys-typescale-title-medium-size); line-height: var(--md-sys-typescale-title-medium-line); font-weight: 500; letter-spacing: 0.15px; }
.md-title-small  { font-size: var(--md-sys-typescale-title-small-size);  line-height: var(--md-sys-typescale-title-small-line);  font-weight: 500; letter-spacing: 0.1px; }

.md-body-large  { font-size: var(--md-sys-typescale-body-large-size);  line-height: var(--md-sys-typescale-body-large-line);  font-weight: 400; letter-spacing: 0.5px; }
.md-body-medium { font-size: var(--md-sys-typescale-body-medium-size); line-height: var(--md-sys-typescale-body-medium-line); font-weight: 400; letter-spacing: 0.25px; }
.md-body-small  { font-size: var(--md-sys-typescale-body-small-size);  line-height: var(--md-sys-typescale-body-small-line);  font-weight: 400; letter-spacing: 0.4px; }

.md-label-large  { font-size: var(--md-sys-typescale-label-large-size);  line-height: var(--md-sys-typescale-label-large-line);  font-weight: 500; letter-spacing: 0.1px; }
.md-label-medium { font-size: var(--md-sys-typescale-label-medium-size); line-height: var(--md-sys-typescale-label-medium-line); font-weight: 500; letter-spacing: 0.5px; }
.md-label-small  { font-size: var(--md-sys-typescale-label-small-size);  line-height: var(--md-sys-typescale-label-small-line);  font-weight: 500; letter-spacing: 0.5px; }

/* --------------------------------------------------------------------------
   5. STATE LAYERS + RIPPLE
   Cada componente interactivo lleva una capa de estado por encima del
   contenedor y por debajo del contenido, con la opacidad que marca MD3.
   -------------------------------------------------------------------------- */

.md-state-layer {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.md-state-layer::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  border-radius: inherit;
  background-color: currentColor;
  opacity: 0;
  transition: opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-state-layer > * { position: relative; z-index: 1; }

.md-state-layer:hover::before        { opacity: var(--md-sys-state-hover-opacity); }
.md-state-layer:focus-visible::before { opacity: var(--md-sys-state-focus-opacity); }
.md-state-layer:active::before       { opacity: var(--md-sys-state-pressed-opacity); }

/* Anillo de foco visible y consistente (accesibilidad por teclado). */
.md-state-layer:focus-visible,
.md-focus-ring:focus-visible {
  outline: 3px solid var(--md-sys-color-secondary);
  outline-offset: 2px;
}

/* Ripple: la onda que expande md3-theme.js al hacer clic. */
.md-ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  opacity: 0.12;
  background-color: currentColor;
  pointer-events: none;
  z-index: 0;              /* siempre por debajo del contenido (z-index:1) */
  animation: md-ripple-expand var(--md-sys-motion-duration-long2) var(--md-sys-motion-easing-standard-decelerate) forwards;
}

@keyframes md-ripple-expand {
  to { transform: scale(1); opacity: 0; }
}

/* --------------------------------------------------------------------------
   6. BOTONES
   Las cinco variantes MD3: filled, tonal, outlined, text y elevated.
   Altura 40px, radio full, label-large. Ripple vía .md-state-layer.
   -------------------------------------------------------------------------- */

.md-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--md-sys-spacing-2);
  min-height: 36px;
  padding: 0 var(--md-sys-spacing-5);
  border: none;
  border-radius: var(--md-sys-shape-corner-full);
  font-family: var(--md-sys-typescale-font);
  font-size: var(--md-sys-typescale-label-large-size);
  line-height: var(--md-sys-typescale-label-large-line);
  font-weight: 500;
  letter-spacing: 0.1px;
  text-decoration: none;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  white-space: nowrap;
  transition:
    box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
    background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-color: currentColor;
  opacity: 0;
  transition: opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-btn > * { position: relative; z-index: 1; }

.md-btn:hover::before         { opacity: var(--md-sys-state-hover-opacity); }
.md-btn:focus-visible::before { opacity: var(--md-sys-state-focus-opacity); }
.md-btn:active::before        { opacity: var(--md-sys-state-pressed-opacity); }

.md-btn:focus-visible {
  outline: 3px solid var(--md-sys-color-secondary);
  outline-offset: 2px;
}

/* Iconos dentro del botón: 18px, alineados al texto. */
.md-btn .material-symbols-rounded,
.md-btn .material-symbols-outlined,
.md-btn i {
  font-size: 18px;
  width: 18px;
  height: 18px;
  line-height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* --- Variantes --- */

/* Filled: la acción principal de la pantalla. */
.md-btn-filled {
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
}
.md-btn-filled:hover { box-shadow: var(--md-sys-elevation-1); }

/* Tonal: acción importante que no compite con la principal. */
.md-btn-tonal {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}
.md-btn-tonal:hover { box-shadow: var(--md-sys-elevation-1); }

/* Outlined: acción secundaria; borde en lugar de relleno. */
.md-btn-outlined {
  background-color: transparent;
  color: var(--md-sys-color-primary);
  border: 1px solid var(--md-sys-color-outline);
}
.md-btn-outlined:focus-visible { border-color: var(--md-sys-color-primary); }

/* Text: acción de baja prioridad (cancelar, "ver más"). */
.md-btn-text {
  background-color: transparent;
  color: var(--md-sys-color-primary);
  padding: 0 var(--md-sys-spacing-3);
}

/* Elevated: outlined con sombra, para separarse de fondos con patrón. */
.md-btn-elevated {
  background-color: var(--md-sys-color-surface-container-low);
  color: var(--md-sys-color-primary);
  box-shadow: var(--md-sys-elevation-1);
}
.md-btn-elevated:hover { box-shadow: var(--md-sys-elevation-2); }

/* Destructivo: eliminar, cancelar cita. */
.md-btn-error {
  background-color: var(--md-sys-color-error);
  color: var(--md-sys-color-on-error);
}
.md-btn-error:hover { box-shadow: var(--md-sys-elevation-1); }

/* Tamaños */
.md-btn-sm { min-height: 32px; padding: 0 var(--md-sys-spacing-4); font-size: var(--md-sys-typescale-label-medium-size); }
.md-btn-lg { min-height: 43px; padding: 0 var(--md-sys-spacing-6); }
.md-btn-block { width: 100%; }

/* Estado deshabilitado — mismo tratamiento para todas las variantes. */
.md-btn:disabled,
.md-btn[aria-disabled='true'],
.md-btn.md-disabled {
  cursor: not-allowed;
  box-shadow: none;
  background-color: rgb(var(--md-sys-color-on-surface-rgb) / var(--md-sys-state-disabled-container-opacity));
  color: rgb(var(--md-sys-color-on-surface-rgb) / var(--md-sys-state-disabled-content-opacity));
  border-color: transparent;
}
.md-btn-text:disabled,
.md-btn-outlined:disabled {
  background-color: transparent;
}
.md-btn-outlined:disabled {
  border-color: rgb(var(--md-sys-color-on-surface-rgb) / var(--md-sys-state-disabled-container-opacity));
}
.md-btn:disabled::before { opacity: 0 !important; }

/* --- Icon button: acción sin etiqueta (48px de área táctil) --- */
.md-icon-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 36px;
  padding: 0;
  border: none;
  border-radius: var(--md-sys-shape-corner-full);
  background-color: transparent;
  color: var(--md-sys-color-on-surface-variant);
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  transition: color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-icon-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  background-color: currentColor;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-icon-btn > * { position: relative; z-index: 1; }
.md-icon-btn:hover::before         { opacity: var(--md-sys-state-hover-opacity); }
.md-icon-btn:focus-visible::before { opacity: var(--md-sys-state-focus-opacity); }
.md-icon-btn:active::before        { opacity: var(--md-sys-state-pressed-opacity); }
.md-icon-btn:focus-visible {
  outline: 3px solid var(--md-sys-color-secondary);
  outline-offset: 2px;
}
.md-icon-btn-filled {
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
}
.md-icon-btn-tonal {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}

/* --- FAB: acción principal flotante (nueva cita, nuevo paciente) --- */
.md-fab {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--md-sys-spacing-2);
  min-width: 56px;
  height: 50px;
  padding: 0 var(--md-sys-spacing-4);
  border: none;
  border-radius: var(--md-sys-shape-corner-large);
  background-color: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  box-shadow: var(--md-sys-elevation-3);
  font-family: var(--md-sys-typescale-font);
  font-size: var(--md-sys-typescale-label-large-size);
  font-weight: 500;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  text-decoration: none;
  transition: box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.md-fab::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background-color: currentColor;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.md-fab > * { position: relative; z-index: 1; }
.md-fab:hover::before  { opacity: var(--md-sys-state-hover-opacity); }
.md-fab:active::before { opacity: var(--md-sys-state-pressed-opacity); }
.md-fab:hover { box-shadow: var(--md-sys-elevation-4); }

/* --------------------------------------------------------------------------
   7. TARJETAS
   Tres variantes MD3. Se usan en fichas de paciente, KPIs y listados.
   -------------------------------------------------------------------------- */

.md-card {
  display: block;
  border-radius: var(--md-sys-shape-corner-medium);
  background-color: var(--md-sys-color-surface-container-low);
  color: var(--md-sys-color-on-surface);
  overflow: hidden;
  transition:
    box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
    background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

/* Elevated — 1dp en reposo, 3dp al pasar el cursor. */
.md-card-elevated {
  background-color: var(--md-sys-color-surface-container-low);
  box-shadow: var(--md-sys-elevation-1);
}

/* Filled — sin sombra, se apoya en el color del contenedor. */
.md-card-filled {
  background-color: var(--md-sys-color-surface-container-highest);
  box-shadow: var(--md-sys-elevation-0);
}

/* Outlined — borde de 1px, la más sobria; ideal para listados densos. */
.md-card-outlined {
  background-color: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  box-shadow: var(--md-sys-elevation-0);
}

/* Solo las tarjetas que son un enlace/acción reaccionan al cursor. */
.md-card-interactive {
  cursor: pointer;
  position: relative;
  isolation: isolate;
  overflow: hidden;
}
.md-card-interactive::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background-color: var(--md-sys-color-on-surface);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.md-card-interactive > * { position: relative; z-index: 1; }
.md-card-interactive:hover::before  { opacity: var(--md-sys-state-hover-opacity); }
.md-card-interactive:active::before { opacity: var(--md-sys-state-pressed-opacity); }
.md-card-interactive.md-card-elevated:hover { box-shadow: var(--md-sys-elevation-2); }

.md-card-body   { padding: var(--md-sys-spacing-3) var(--md-sys-spacing-4); }
.md-card-header {
  padding: var(--md-sys-spacing-4);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}
.md-card-footer {
  padding: var(--md-sys-spacing-3) var(--md-sys-spacing-4);
  border-top: 1px solid var(--md-sys-color-outline-variant);
  display: flex;
  align-items: center;
  gap: var(--md-sys-spacing-2);
}

/* --------------------------------------------------------------------------
   8. CAMPOS DE FORMULARIO
   Text fields MD3 (filled y outlined). Prioridad alta: son la pantalla
   más usada junto al calendario.
   -------------------------------------------------------------------------- */

.md-field {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--md-sys-spacing-1);
  width: 100%;
}

.md-field-label {
  font-size: var(--md-sys-typescale-body-small-size);
  line-height: var(--md-sys-typescale-body-small-line);
  font-weight: 500;
  letter-spacing: 0.4px;
  color: var(--md-sys-color-on-surface-variant);
}

.md-field-label .md-required { color: var(--md-sys-color-error); margin-left: 2px; }

/* Control base: aplica a input, select y textarea. */
.md-input,
.md-select,
.md-textarea {
  width: 100%;
  box-sizing: border-box;
  min-height: 36px;
  padding: var(--md-sys-spacing-2) var(--md-sys-spacing-4);
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-corner-extra-small);
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  font-family: var(--md-sys-typescale-font);
  font-size: var(--md-sys-typescale-body-large-size);
  line-height: var(--md-sys-typescale-body-large-line);
  transition:
    border-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
    box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
    background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-textarea {
  min-height: 96px;
  resize: vertical;
}

.md-input::placeholder,
.md-textarea::placeholder {
  color: var(--md-sys-color-on-surface-variant);
  opacity: 0.7;
}

.md-input:hover,
.md-select:hover,
.md-textarea:hover {
  border-color: var(--md-sys-color-on-surface);
}

/* Foco: borde de 2px en primary, sin desplazar el layout. */
.md-input:focus,
.md-select:focus,
.md-textarea:focus {
  outline: none;
  border-color: var(--md-sys-color-primary);
  box-shadow: inset 0 0 0 1px var(--md-sys-color-primary);
}

.md-input:disabled,
.md-select:disabled,
.md-textarea:disabled {
  background-color: rgb(var(--md-sys-color-on-surface-rgb) / 0.04);
  border-color: rgb(var(--md-sys-color-on-surface-rgb) / var(--md-sys-state-disabled-container-opacity));
  color: rgb(var(--md-sys-color-on-surface-rgb) / var(--md-sys-state-disabled-content-opacity));
  cursor: not-allowed;
}

/* Variante filled: fondo tonal y subrayado, la que MD3 usa por defecto. */
.md-field-filled .md-input,
.md-field-filled .md-select,
.md-field-filled .md-textarea {
  background-color: var(--md-sys-color-surface-container-highest);
  border: none;
  border-bottom: 1px solid var(--md-sys-color-on-surface-variant);
  border-radius: var(--md-sys-shape-corner-extra-small) var(--md-sys-shape-corner-extra-small) 0 0;
}
.md-field-filled .md-input:focus,
.md-field-filled .md-select:focus,
.md-field-filled .md-textarea:focus {
  border-bottom: 2px solid var(--md-sys-color-primary);
  box-shadow: none;
}

/* Select: flecha propia (la nativa no se puede tematizar). */
.md-select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: var(--md-sys-spacing-8);
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2373777f'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--md-sys-spacing-3) center;
  background-size: 24px;
  cursor: pointer;
}

/* Texto de ayuda y error bajo el campo. */
.md-field-support {
  display: flex;
  align-items: center;
  gap: var(--md-sys-spacing-1);
  padding: 0 var(--md-sys-spacing-4);
  font-size: var(--md-sys-typescale-body-small-size);
  line-height: var(--md-sys-typescale-body-small-line);
  color: var(--md-sys-color-on-surface-variant);
}

.md-field-error .md-input,
.md-field-error .md-select,
.md-field-error .md-textarea,
.md-input.md-invalid {
  border-color: var(--md-sys-color-error);
}
.md-field-error .md-field-support,
.md-field-error .md-field-label {
  color: var(--md-sys-color-error);
}

/* Prefijo/sufijo dentro del campo (ej. $ en importes, icono de búsqueda). */
.md-field-affix { position: relative; display: flex; align-items: center; }
.md-field-affix .md-input { padding-left: var(--md-sys-spacing-8); }
.md-field-affix-icon {
  position: absolute;
  left: var(--md-sys-spacing-3);
  display: flex;
  align-items: center;
  color: var(--md-sys-color-on-surface-variant);
  pointer-events: none;
}

/* Checkbox y radio con el color del tema. */
.md-checkbox,
.md-radio {
  width: 18px;
  height: 18px;
  accent-color: var(--md-sys-color-primary);
  cursor: pointer;
}

/* Switch MD3 */
.md-switch {
  position: relative;
  display: inline-block;
  width: 52px;
  height: 32px;
  flex-shrink: 0;
}
.md-switch input { opacity: 0; width: 0; height: 0; }
.md-switch-track {
  position: absolute;
  inset: 0;
  border-radius: var(--md-sys-shape-corner-full);
  background-color: var(--md-sys-color-surface-container-highest);
  border: 2px solid var(--md-sys-color-outline);
  cursor: pointer;
  transition: background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
              border-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.md-switch-track::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 50%;
  width: 16px;
  height: 16px;
  margin-top: -8px;
  border-radius: 50%;
  background-color: var(--md-sys-color-outline);
  transition: transform var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-emphasized),
              width var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-emphasized),
              height var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-emphasized),
              background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.md-switch input:checked + .md-switch-track {
  background-color: var(--md-sys-color-primary);
  border-color: var(--md-sys-color-primary);
}
.md-switch input:checked + .md-switch-track::before {
  transform: translateX(20px);
  width: 24px;
  height: 24px;
  margin-top: -12px;
  left: 0;
  background-color: var(--md-sys-color-on-primary);
}
.md-switch input:focus-visible + .md-switch-track {
  outline: 3px solid var(--md-sys-color-secondary);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   9. NAVEGACIÓN
   Navigation Drawer (desktop), Navigation Bar (móvil) y Top App Bar.
   -------------------------------------------------------------------------- */

/* --- Top App Bar --- */
.md-top-bar {
  display: flex;
  align-items: center;
  gap: var(--md-sys-spacing-2);
  min-height: 58px;
  padding: 0 var(--md-sys-spacing-4);
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  transition: box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
              background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

/* Al hacer scroll pasa a surface-container + 3dp (patrón "on scroll" de MD3). */
.md-top-bar-scrolled {
  background-color: var(--md-sys-color-surface-container);
  box-shadow: var(--md-sys-elevation-2);
}

.md-top-bar-title {
  font-size: var(--md-sys-typescale-title-large-size);
  line-height: var(--md-sys-typescale-title-large-line);
  font-weight: 500;
  margin: 0;
}

/* --- Navigation Drawer (lista lateral) --- */
.md-nav-drawer {
  background-color: var(--md-sys-color-surface-container-low);
  border-right: 1px solid var(--md-sys-color-outline-variant);
}

/* Cada ítem: píldora completa de 56px, el patrón de MD3. */
.md-nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--md-sys-spacing-3);
  height: 40px;
  padding: 0 var(--md-sys-spacing-3);
  margin-bottom: var(--md-sys-spacing-1);
  border-radius: var(--md-sys-shape-corner-full);
  color: var(--md-sys-color-on-surface-variant);
  text-decoration: none;
  font-size: var(--md-sys-typescale-label-large-size);
  line-height: var(--md-sys-typescale-label-large-line);
  font-weight: 500;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  transition: background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
              color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-nav-item::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  background-color: currentColor;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-nav-item > * { position: relative; z-index: 2; }
/* El ripple, insertado por JS como hijo del ítem, va SIEMPRE bajo el contenido. */
.md-nav-item > .md-ripple { z-index: 0; }
.md-nav-item:hover::before         { opacity: var(--md-sys-state-hover-opacity); }
.md-nav-item:focus-visible::before { opacity: var(--md-sys-state-focus-opacity); }
.md-nav-item:active::before        { opacity: var(--md-sys-state-pressed-opacity); }
.md-nav-item:focus-visible { outline: 3px solid var(--md-sys-color-secondary); outline-offset: -3px; }

/* Ítem activo: contenedor secundario, como marca la especificación. */
.md-nav-item-active {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}

.md-nav-item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  flex-shrink: 0;
  /* Sobre el state layer y el ripple, siempre. Evita el parpadeo (contenido
     que desaparece un instante) al hacer clic, cuando el ripple se inserta. */
  position: relative;
  z-index: 3;
}

.md-nav-item-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  position: relative;
  z-index: 3;
}

/* El ripple del nav-item nunca debe tapar su contenido, ni siquiera el
   instante en que se inserta como último hijo durante el clic. */
.md-nav-item > .md-ripple { z-index: 0 !important; }

/* Badge numérico al final del ítem. */
.md-nav-item-badge {
  margin-left: auto;
  flex-shrink: 0;
  font-size: var(--md-sys-typescale-label-small-size);
  font-weight: 500;
  padding: 2px var(--md-sys-spacing-2);
  border-radius: var(--md-sys-shape-corner-full);
  background-color: var(--md-sys-color-error);
  color: var(--md-sys-color-on-error);
}

.md-nav-section-label {
  padding: var(--md-sys-spacing-4) var(--md-sys-spacing-4) var(--md-sys-spacing-2);
  font-size: var(--md-sys-typescale-title-small-size);
  font-weight: 500;
  color: var(--md-sys-color-on-surface-variant);
}

.md-nav-divider {
  height: 1px;
  margin: var(--md-sys-spacing-2) var(--md-sys-spacing-4);
  background-color: var(--md-sys-color-outline-variant);
  border: 0;
}

/* --- Navigation Bar (móvil, fija abajo) --- */
.md-nav-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-around;
  height: 80px;
  padding: var(--md-sys-spacing-3) var(--md-sys-spacing-2);
  background-color: var(--md-sys-color-surface-container);
  border-top: 1px solid var(--md-sys-color-outline-variant);
}

.md-nav-bar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--md-sys-spacing-1);
  flex: 1;
  min-width: 0;
  padding: 0 var(--md-sys-spacing-1);
  color: var(--md-sys-color-on-surface-variant);
  text-decoration: none;
  font-size: var(--md-sys-typescale-label-medium-size);
  font-weight: 500;
}

/* El indicador activo es una píldora tras el icono, no el icono coloreado. */
.md-nav-bar-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 32px;
  border-radius: var(--md-sys-shape-corner-full);
  transition: background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-nav-bar-item-active { color: var(--md-sys-color-on-surface); }
.md-nav-bar-item-active .md-nav-bar-indicator {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}

.md-nav-bar-label {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   10. DIÁLOGOS / MODALES — 24dp de radio, elevación 3 (6dp)
   -------------------------------------------------------------------------- */

.md-scrim {
  position: fixed;
  inset: 0;
  z-index: 50;
  background-color: rgb(var(--md-sys-color-scrim-rgb) / 0.32);
  backdrop-filter: blur(2px);
  animation: md-fade-in var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-dialog {
  position: relative;
  width: min(560px, calc(100vw - 48px));
  max-height: calc(100vh - 96px);
  display: flex;
  flex-direction: column;
  border-radius: var(--md-sys-shape-corner-extra-large);
  background-color: var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-on-surface);
  box-shadow: var(--md-sys-elevation-3);
  animation: md-dialog-in var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
}

.md-dialog-header {
  padding: var(--md-sys-spacing-5) var(--md-sys-spacing-5) var(--md-sys-spacing-4);
  display: flex;
  align-items: center;
  gap: var(--md-sys-spacing-3);
}

.md-dialog-title {
  font-size: var(--md-sys-typescale-headline-small-size);
  line-height: var(--md-sys-typescale-headline-small-line);
  font-weight: 400;
  margin: 0;
}

.md-dialog-body {
  padding: 0 var(--md-sys-spacing-5);
  overflow-y: auto;
  flex: 1;
  color: var(--md-sys-color-on-surface-variant);
  font-size: var(--md-sys-typescale-body-medium-size);
  line-height: var(--md-sys-typescale-body-medium-line);
}

.md-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--md-sys-spacing-2);
  padding: var(--md-sys-spacing-5);
}

@keyframes md-fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes md-dialog-in {
  from { opacity: 0; transform: scale(0.85); }
  to   { opacity: 1; transform: scale(1); }
}

/* --------------------------------------------------------------------------
   11. CHIPS Y BADGES DE ESTADO
   Los estados de cita (confirmada, pendiente, cancelada...) usan pares
   container/on-container para mantener el contraste en ambos modos.
   -------------------------------------------------------------------------- */

.md-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--md-sys-spacing-1);
  height: 32px;
  padding: 0 var(--md-sys-spacing-3);
  border-radius: var(--md-sys-shape-corner-small);
  border: 1px solid var(--md-sys-color-outline);
  background-color: transparent;
  color: var(--md-sys-color-on-surface-variant);
  font-size: var(--md-sys-typescale-label-large-size);
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
}

.md-chip-filled {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  border-color: transparent;
}

.md-chip-selected {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  border-color: transparent;
}

.md-chip .material-symbols-rounded { font-size: 18px; }

/* Badge de estado (más compacto que un chip). */
.md-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--md-sys-spacing-1);
  padding: 2px var(--md-sys-spacing-2);
  border-radius: var(--md-sys-shape-corner-small);
  font-size: var(--md-sys-typescale-label-small-size);
  line-height: var(--md-sys-typescale-label-small-line);
  font-weight: 500;
  white-space: nowrap;
}

.md-badge-primary   { background-color: var(--md-sys-color-primary-container);   color: var(--md-sys-color-on-primary-container); }
.md-badge-secondary { background-color: var(--md-sys-color-secondary-container); color: var(--md-sys-color-on-secondary-container); }
.md-badge-tertiary  { background-color: var(--md-sys-color-tertiary-container);  color: var(--md-sys-color-on-tertiary-container); }
.md-badge-error     { background-color: var(--md-sys-color-error-container);     color: var(--md-sys-color-on-error-container); }
.md-badge-success   { background-color: var(--md-sys-color-success-container);   color: var(--md-sys-color-on-success-container); }
.md-badge-warning   { background-color: var(--md-sys-color-warning-container);   color: var(--md-sys-color-on-warning-container); }
.md-badge-neutral   { background-color: var(--md-sys-color-surface-container-highest); color: var(--md-sys-color-on-surface-variant); }

/* --------------------------------------------------------------------------
   12. LISTAS
   -------------------------------------------------------------------------- */

.md-list { margin: 0; padding: var(--md-sys-spacing-1) 0; list-style: none; }

.md-list-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--md-sys-spacing-4);
  min-height: 43px;
  padding: var(--md-sys-spacing-2) var(--md-sys-spacing-4);
  color: var(--md-sys-color-on-surface);
  text-decoration: none;
  isolation: isolate;
}

.md-list-item-interactive { cursor: pointer; overflow: hidden; }
.md-list-item-interactive::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background-color: var(--md-sys-color-on-surface);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.md-list-item-interactive > * { position: relative; z-index: 1; }
.md-list-item-interactive:hover::before  { opacity: var(--md-sys-state-hover-opacity); }
.md-list-item-interactive:active::before { opacity: var(--md-sys-state-pressed-opacity); }

.md-list-item-headline { font-size: var(--md-sys-typescale-body-large-size); line-height: var(--md-sys-typescale-body-large-line); }
.md-list-item-support  { font-size: var(--md-sys-typescale-body-medium-size); line-height: var(--md-sys-typescale-body-medium-line); color: var(--md-sys-color-on-surface-variant); }
.md-list-divider { height: 1px; background-color: var(--md-sys-color-outline-variant); border: 0; margin: 0; }

/* --------------------------------------------------------------------------
   13. TABLAS
   -------------------------------------------------------------------------- */

.md-table-wrapper {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--md-sys-shape-corner-medium);
  border: 1px solid var(--md-sys-color-outline-variant);
  background-color: var(--md-sys-color-surface);
}

.md-table { width: 100%; border-collapse: collapse; }

.md-table thead th {
  padding: var(--md-sys-spacing-2) var(--md-sys-spacing-4);
  text-align: left;
  background-color: var(--md-sys-color-surface-container);
  color: var(--md-sys-color-on-surface-variant);
  font-size: var(--md-sys-typescale-title-small-size);
  line-height: var(--md-sys-typescale-title-small-line);
  font-weight: 500;
  white-space: nowrap;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.md-table tbody td {
  padding: var(--md-sys-spacing-2) var(--md-sys-spacing-4);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  font-size: var(--md-sys-typescale-body-medium-size);
  line-height: var(--md-sys-typescale-body-medium-line);
  color: var(--md-sys-color-on-surface);
}

.md-table tbody tr:last-child td { border-bottom: none; }

.md-table tbody tr {
  transition: background-color var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}
.md-table-hover tbody tr:hover {
  background-color: rgb(var(--md-sys-color-on-surface-rgb) / var(--md-sys-state-hover-opacity));
}

/* --------------------------------------------------------------------------
   14. CALENDARIO DE CITAS
   Prioridad especial: es la pantalla más usada del sistema.
   -------------------------------------------------------------------------- */

.md-calendar {
  background-color: var(--md-sys-color-surface-container-low);
  border-radius: var(--md-sys-shape-corner-large);
  padding: var(--md-sys-spacing-4);
  box-shadow: var(--md-sys-elevation-1);
}

.md-calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--md-sys-spacing-2);
  margin-bottom: var(--md-sys-spacing-4);
}

.md-calendar-month {
  font-size: var(--md-sys-typescale-title-large-size);
  line-height: var(--md-sys-typescale-title-large-line);
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  text-transform: capitalize;
}

.md-calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: var(--md-sys-spacing-1);
}

.md-calendar-weekday {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  font-size: var(--md-sys-typescale-label-medium-size);
  font-weight: 500;
  color: var(--md-sys-color-on-surface-variant);
  text-transform: uppercase;
}

/* Cada día es un círculo de 40px (el "date picker" de MD3). */
.md-calendar-day {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  min-height: 36px;
  border: none;
  border-radius: var(--md-sys-shape-corner-full);
  background-color: transparent;
  color: var(--md-sys-color-on-surface);
  font-family: var(--md-sys-typescale-font);
  font-size: var(--md-sys-typescale-body-large-size);
  cursor: pointer;
  isolation: isolate;
  overflow: hidden;
  transition: background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
              color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-calendar-day::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  background-color: currentColor;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.md-calendar-day > * { position: relative; z-index: 1; }
.md-calendar-day:hover::before  { opacity: var(--md-sys-state-hover-opacity); }
.md-calendar-day:active::before { opacity: var(--md-sys-state-pressed-opacity); }
.md-calendar-day:focus-visible { outline: 3px solid var(--md-sys-color-secondary); outline-offset: -3px; }

/* Hoy: solo un contorno, sin relleno. */
.md-calendar-day-today {
  border: 1px solid var(--md-sys-color-primary);
  color: var(--md-sys-color-primary);
  font-weight: 500;
}

/* Seleccionado: relleno primary. */
.md-calendar-day-selected {
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  font-weight: 500;
}

.md-calendar-day-disabled,
.md-calendar-day:disabled {
  color: rgb(var(--md-sys-color-on-surface-rgb) / var(--md-sys-state-disabled-content-opacity));
  cursor: not-allowed;
  pointer-events: none;
}

.md-calendar-day-outside { color: var(--md-sys-color-outline); }

/* Punto indicador de "hay citas este día". */
.md-calendar-day-dot::after {
  content: '';
  position: absolute;
  bottom: 5px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: var(--md-sys-color-tertiary);
  z-index: 2;
}
.md-calendar-day-selected.md-calendar-day-dot::after { background-color: var(--md-sys-color-on-primary); }

/* --- Franjas horarias: la rejilla de selección de hora --- */
.md-timeslot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
  gap: var(--md-sys-spacing-2);
}

.md-timeslot {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 43px;
  padding: var(--md-sys-spacing-2) var(--md-sys-spacing-3);
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-corner-small);
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  font-family: var(--md-sys-typescale-font);
  font-size: var(--md-sys-typescale-label-large-size);
  font-weight: 500;
  cursor: pointer;
  isolation: isolate;
  overflow: hidden;
  transition: border-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
              background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
              color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-timeslot::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background-color: currentColor;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.md-timeslot > * { position: relative; z-index: 1; }
.md-timeslot:hover::before  { opacity: var(--md-sys-state-hover-opacity); }
.md-timeslot:active::before { opacity: var(--md-sys-state-pressed-opacity); }
.md-timeslot:focus-visible { outline: 3px solid var(--md-sys-color-secondary); outline-offset: 2px; }

.md-timeslot-selected {
  background-color: var(--md-sys-color-primary);
  border-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
}

.md-timeslot-disabled,
.md-timeslot:disabled {
  background-color: rgb(var(--md-sys-color-on-surface-rgb) / 0.04);
  border-color: transparent;
  color: rgb(var(--md-sys-color-on-surface-rgb) / var(--md-sys-state-disabled-content-opacity));
  cursor: not-allowed;
  pointer-events: none;
  text-decoration: line-through;
}

/* --------------------------------------------------------------------------
   15. SNACKBAR — reemplazo visual de los toasts existentes
   -------------------------------------------------------------------------- */

.md-snackbar {
  position: fixed;
  z-index: 2000;            /* por encima de cualquier modal/scrim del sistema */
  left: 50%;
  bottom: var(--md-sys-spacing-5);
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--md-sys-spacing-3);
  min-height: 43px;
  max-width: min(560px, calc(100vw - 32px));
  padding: var(--md-sys-spacing-2) var(--md-sys-spacing-4);
  border-radius: var(--md-sys-shape-corner-extra-small);
  background-color: var(--md-sys-color-inverse-surface);
  color: var(--md-sys-color-inverse-on-surface);
  box-shadow: var(--md-sys-elevation-3);
  font-size: var(--md-sys-typescale-body-medium-size);
  line-height: var(--md-sys-typescale-body-medium-line);
  animation: md-snackbar-in var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
}

.md-snackbar-leaving {
  animation: md-snackbar-out var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard-accelerate) forwards;
}

/* El icono de estado colorea solo el icono: el fondo sigue siendo inverse-surface. */
.md-snackbar-icon-success { color: var(--md-sys-color-success); }
.md-snackbar-icon-error   { color: var(--md-sys-color-error-container); }
.md-snackbar-icon-warning { color: var(--md-sys-color-warning); }
.md-snackbar-icon-info    { color: var(--md-sys-color-inverse-primary); }

@keyframes md-snackbar-in {
  from { opacity: 0; transform: translate(-50%, 24px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}
@keyframes md-snackbar-out {
  from { opacity: 1; transform: translate(-50%, 0); }
  to   { opacity: 0; transform: translate(-50%, 16px); }
}

/* --------------------------------------------------------------------------
   16. BANNERS / ALERTAS EN LÍNEA
   -------------------------------------------------------------------------- */

.md-banner {
  display: flex;
  align-items: flex-start;
  gap: var(--md-sys-spacing-3);
  padding: var(--md-sys-spacing-3) var(--md-sys-spacing-4);
  border-radius: var(--md-sys-shape-corner-medium);
  font-size: var(--md-sys-typescale-body-medium-size);
  line-height: var(--md-sys-typescale-body-medium-line);
}

.md-banner-info    { background-color: var(--md-sys-color-primary-container);   color: var(--md-sys-color-on-primary-container); }
.md-banner-success { background-color: var(--md-sys-color-success-container);   color: var(--md-sys-color-on-success-container); }
.md-banner-warning { background-color: var(--md-sys-color-warning-container);   color: var(--md-sys-color-on-warning-container); }
.md-banner-error   { background-color: var(--md-sys-color-error-container);     color: var(--md-sys-color-on-error-container); }

/* --------------------------------------------------------------------------
   17. UTILIDADES
   -------------------------------------------------------------------------- */

/* Superficies por rol */
.md-surface                  { background-color: var(--md-sys-color-surface);                 color: var(--md-sys-color-on-surface); }
.md-surface-container-lowest { background-color: var(--md-sys-color-surface-container-lowest); color: var(--md-sys-color-on-surface); }
.md-surface-container-low    { background-color: var(--md-sys-color-surface-container-low);    color: var(--md-sys-color-on-surface); }
.md-surface-container        { background-color: var(--md-sys-color-surface-container);        color: var(--md-sys-color-on-surface); }
.md-surface-container-high   { background-color: var(--md-sys-color-surface-container-high);   color: var(--md-sys-color-on-surface); }
.md-surface-container-highest{ background-color: var(--md-sys-color-surface-container-highest);color: var(--md-sys-color-on-surface); }

/* Texto por rol */
.md-on-surface         { color: var(--md-sys-color-on-surface); }
.md-on-surface-variant { color: var(--md-sys-color-on-surface-variant); }
.md-text-primary       { color: var(--md-sys-color-primary); }
.md-text-error         { color: var(--md-sys-color-error); }

/* Espaciado en múltiplos de 8 */
.md-gap-1 { gap: var(--md-sys-spacing-1); }
.md-gap-2 { gap: var(--md-sys-spacing-2); }
.md-gap-3 { gap: var(--md-sys-spacing-3); }
.md-gap-4 { gap: var(--md-sys-spacing-4); }
.md-gap-5 { gap: var(--md-sys-spacing-5); }
.md-gap-6 { gap: var(--md-sys-spacing-6); }

.md-stack   { display: flex; flex-direction: column; }
.md-stack-4 { display: flex; flex-direction: column; gap: var(--md-sys-spacing-4); }
.md-stack-5 { display: flex; flex-direction: column; gap: var(--md-sys-spacing-5); }
.md-row     { display: flex; align-items: center; }

/* Divisor */
.md-divider { height: 1px; background-color: var(--md-sys-color-outline-variant); border: 0; margin: 0; }

/* Iconos: ajusta el peso óptico de Material Symbols. */
.material-symbols-rounded,
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  line-height: 1;
  user-select: none;
  vertical-align: middle;

  /* Los Material Symbols dibujan cada icono como una LIGADURA: el texto
     "person_add" se sustituye por su glifo. El CSS que sirve Google solo
     declara -webkit-font-feature-settings (con prefijo), y Chrome en Android
     ya no lo aplica, de modo que en el móvil se veía el nombre del icono en
     vez del dibujo. Aquí se declaran las propiedades estándar. */
  font-feature-settings: 'liga' 1;
  font-variant-ligatures: common-ligatures discretionary-ligatures;
  -webkit-font-feature-settings: 'liga' 1;

  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  text-transform: none;
  letter-spacing: normal;

  /* Mientras la fuente de iconos no ha llegado, el navegador pintaría el
     NOMBRE del icono ("person_add") con la tipografía de respaldo. Se evita
     recortando el texto al ancho del icono: se ve un hueco en lugar de una
     palabra suelta, y al cargar la fuente aparece el dibujo. */
  overflow: hidden;
  max-width: 1.2em;
  text-indent: 0;
}

/* Cuando la fuente ya está lista se quita el recorte: algunos glifos
   (flechas anchas, iconos de dos caracteres) necesitan algo más de caja. */
.fuentes-listas .material-symbols-rounded,
.fuentes-listas .material-symbols-outlined {
  overflow: visible;
  max-width: none;
}

.md-icon-filled { font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24; }
.md-icon-18 { font-size: 18px; }
.md-icon-20 { font-size: 20px; }
.md-icon-24 { font-size: 24px; }
.md-icon-32 { font-size: 32px; }
.md-icon-40 { font-size: 40px; }
.md-icon-48 { font-size: 48px; }

/* Solo para lectores de pantalla */
.md-sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   18. ACCESIBILIDAD
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .md-ripple { display: none; }
}

@media print {
  .md-nav-drawer,
  .md-nav-bar,
  .md-top-bar,
  .md-fab,
  .md-snackbar { display: none !important; }

  .md-card,
  .md-table-wrapper { box-shadow: none !important; border: 1px solid #ccc; }
}

/* --------------------------------------------------------------------------
   19. CAPA DE COMPATIBILIDAD
   --------------------------------------------------------------------------
   El proyecto tiene ~200 campos de formulario y ~140 botones escritos con
   utilidades Tailwind antes de esta migración. En vez de reescribir cada
   etiqueta, aquí se les da el acabado MD3 por selector de atributo.

   Es deliberadamente específico: solo alcanza elementos que ya declaraban
   ese aspecto (w-full + border en un campo, bg-primary en un botón), así
   que no afecta a nada que no fuera ya un campo o un botón.

   Al refactorizar una página a clases .md-* explícitas, estas reglas dejan
   de aplicarle porque las .md-* ganan por especificidad y orden.
   ------------------------------------------------------------------------ */

/* --- Campos de formulario escritos con utilidades --- */
input[class*="w-full"]:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="color"]):not([type="file"]):not(.md-input),
select[class*="w-full"]:not(.md-select),
textarea[class*="w-full"]:not(.md-textarea),
input[class*="border"]:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="color"]):not([type="file"]):not(.md-input),
select[class*="border"]:not(.md-select),
textarea[class*="border"]:not(.md-textarea) {
    background-color: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    border: 1px solid var(--md-sys-color-outline);
    border-radius: var(--md-sys-shape-corner-small);
    font-family: var(--md-sys-typescale-font);
    transition:
        border-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
        box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

/* Altura compacta (40px) sin pisar el padding que ya tuvieran. */
input[class*="w-full"]:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="color"]):not([type="file"]):not(.md-input),
select[class*="w-full"]:not(.md-select) {
    min-height: 36px;
}

input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="color"]):not([type="file"]):not(.md-input):hover,
select:not(.md-select):hover,
textarea:not(.md-textarea):hover {
    border-color: var(--md-sys-color-on-surface);
}

/* Foco MD3: borde primary de 2px, sin el anillo difuso de Tailwind. */
input:not([type="checkbox"]):not([type="radio"]):not([type="file"]):not(.md-input):focus,
select:not(.md-select):focus,
textarea:not(.md-textarea):focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
    box-shadow: inset 0 0 0 1px var(--md-sys-color-primary);
    --tw-ring-color: transparent;
    --tw-ring-shadow: 0 0 #0000;
}

input::placeholder,
textarea::placeholder {
    color: var(--md-sys-color-on-surface-variant);
    opacity: 0.7;
}

/* Checkbox, radio y color pickers heredan el color del tema. */
input[type="checkbox"],
input[type="radio"],
input[type="range"] {
    accent-color: var(--md-sys-color-primary);
}

/* Campos deshabilitados / de solo lectura */
input:disabled, select:disabled, textarea:disabled,
input[readonly], textarea[readonly] {
    background-color: rgb(var(--md-sys-color-on-surface-rgb) / 0.04);
    color: rgb(var(--md-sys-color-on-surface-rgb) / var(--md-sys-state-disabled-content-opacity));
    border-color: rgb(var(--md-sys-color-on-surface-rgb) / var(--md-sys-state-disabled-container-opacity));
}

/* Etiquetas de formulario */
label { color: var(--md-sys-color-on-surface-variant); }

/* --- Botones escritos con utilidades --- */
button[class*="bg-primary"], a[class*="bg-primary"],
button[class*="bg-secondary"], a[class*="bg-secondary"] {
    border-radius: var(--md-sys-shape-corner-full);
    font-weight: 500;
    letter-spacing: 0.1px;
    transition:
        box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
        filter var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

button[class*="bg-primary"]:hover, a[class*="bg-primary"]:hover,
button[class*="bg-secondary"]:hover, a[class*="bg-secondary"]:hover {
    box-shadow: var(--md-sys-elevation-1);
}

button[class*="bg-primary"]:active, a[class*="bg-primary"]:active,
button[class*="bg-secondary"]:active, a[class*="bg-secondary"]:active {
    box-shadow: none;
    filter: brightness(0.94);
}

/* Foco visible por teclado en cualquier control interactivo. */
button:focus-visible,
a:focus-visible,
[role="button"]:focus-visible {
    outline: 3px solid var(--md-sys-color-secondary);
    outline-offset: 2px;
}

/* --- Tablas escritas con utilidades --- */
table th {
    color: var(--md-sys-color-on-surface-variant);
    font-weight: 500;
}
table td { color: var(--md-sys-color-on-surface); }

/* --- Contenedores tipo tarjeta --- */
[class*="rounded-"][class*="shadow"] {
    transition: box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

/* Los <hr> y bordes sueltos siguen el token de contorno. */
hr { border-color: var(--md-sys-color-outline-variant); }

/* Enlaces de texto dentro del contenido. */
main a:not([class]) {
    color: var(--md-sys-color-primary);
    text-decoration-color: rgb(var(--md-sys-color-primary-rgb) / 0.4);
}

/* --------------------------------------------------------------------------
   20. INDICADOR DE PROGRESO
   Sustituye a fa-spin, que dejó de existir al retirar Font Awesome.
   -------------------------------------------------------------------------- */

.md-spin {
    animation: md-spin-rotate 1.4s linear infinite;
    transform-origin: center;
    display: inline-block;
}

@keyframes md-spin-rotate {
    to { transform: rotate(360deg); }
}

/* Indicador circular MD3 para estados de carga sin icono. */
.md-progress-circular {
    width: 40px;
    height: 36px;
    border: 4px solid var(--md-sys-color-surface-container-highest);
    border-top-color: var(--md-sys-color-primary);
    border-radius: 50%;
    animation: md-spin-rotate 1s linear infinite;
}

/* Barra de progreso indeterminada. */
.md-progress-linear {
    position: relative;
    height: 4px;
    width: 100%;
    overflow: hidden;
    border-radius: var(--md-sys-shape-corner-full);
    background-color: var(--md-sys-color-surface-container-highest);
}

.md-progress-linear::after {
    content: '';
    position: absolute;
    inset: 0;
    width: 40%;
    border-radius: inherit;
    background-color: var(--md-sys-color-primary);
    animation: md-progress-slide 1.6s var(--md-sys-motion-easing-standard) infinite;
}

@keyframes md-progress-slide {
    from { transform: translateX(-100%); }
    to   { transform: translateX(250%); }
}

@media (prefers-reduced-motion: reduce) {
    .md-spin,
    .md-progress-circular,
    .md-progress-linear::after { animation: none; }
}

/* --------------------------------------------------------------------------
   21. MODALES EXISTENTES
   --------------------------------------------------------------------------
   Los 15 modales del proyecto usan el patrón `fixed inset-0` + panel interior.
   Aquí reciben el acabado de un Dialog MD3 —scrim correcto, radio de 28px,
   elevación 6dp y animación de entrada— sin reescribir su markup ni tocar el
   JS que los abre y cierra (siguen funcionando con .hidden).
   ------------------------------------------------------------------------ */

/* El velo: MD3 usa scrim al 32%, no negro al 50%. */
div[class*="fixed"][class*="inset-0"][class*="bg-black"] {
    background-color: rgb(var(--md-sys-color-scrim-rgb) / 0.32) !important;
    backdrop-filter: blur(2px);
}

/* El panel interior del modal. */
div[class*="fixed"][class*="inset-0"][class*="bg-black"] > div:not(.md-dialog) {
    background-color: var(--md-sys-color-surface-container-high);
    color: var(--md-sys-color-on-surface);
    border-radius: var(--md-sys-shape-corner-extra-large);
    box-shadow: var(--md-sys-elevation-3);
}

/* La animación solo debe correr al abrirse, no mientras está oculto. */
div[class*="fixed"][class*="inset-0"][class*="bg-black"]:not(.hidden) > div:not(.md-dialog) {
    animation: md-dialog-in var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
}

/* Cabecera y pie separados por el contorno del tema. */
div[class*="fixed"][class*="inset-0"][class*="bg-black"] > div [class*="border-b"] {
    border-bottom-color: var(--md-sys-color-outline-variant);
}
div[class*="fixed"][class*="inset-0"][class*="bg-black"] > div [class*="border-t"] {
    border-top-color: var(--md-sys-color-outline-variant);
}

/* Botón de cierre (&times;) con área táctil y state layer. */
div[class*="fixed"][class*="inset-0"][class*="bg-black"] button[onclick*="hidden"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    min-height: 36px;
    border-radius: var(--md-sys-shape-corner-full);
    color: var(--md-sys-color-on-surface-variant);
    transition: background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
div[class*="fixed"][class*="inset-0"][class*="bg-black"] button[onclick*="hidden"]:hover {
    background-color: rgb(var(--md-sys-color-on-surface-rgb) / var(--md-sys-state-hover-opacity));
    color: var(--md-sys-color-on-surface);
}

/* --------------------------------------------------------------------------
   22. MINIMALISTA: SIN DEGRADADOS
   --------------------------------------------------------------------------
   El diseño acordado usa colores planos. Cualquier degradado de Tailwind
   (bg-gradient-*, from-*, to-*, via-*) se aplana al color sólido de marca.
   Se cubre el markup existente sin reescribirlo; el resultado es un bloque
   de color primario liso donde antes había una transición.
   ------------------------------------------------------------------------ */

[class*="bg-gradient-"] {
    background-image: none !important;
}

/* Los degradados de marca (from-primary → to-secondary) pasan a primary liso. */
[class*="from-primary"],
[class*="bg-gradient-"][class*="to-secondary"],
[class*="bg-gradient-"][class*="to-primary"] {
    background-color: var(--md-sys-color-primary) !important;
    color: var(--md-sys-color-on-primary);
}

/* Degradados sobre fondos claros (from-slate-50, to-teal-50…) → superficie. */
[class*="bg-gradient-"][class*="from-slate"],
[class*="bg-gradient-"][class*="from-gray"],
[class*="bg-gradient-"][class*="to-teal-50"],
[class*="bg-gradient-"][class*="to-blue-50"] {
    background-color: var(--md-sys-color-surface) !important;
    color: var(--md-sys-color-on-surface);
}

/* Las tarjetas KPI de estadísticas (from-blue-500, from-green-500…) usan el
   color pleno de su rol en lugar de una transición. */
[class*="bg-gradient-"][class*="from-blue"]   { background-color: var(--md-sys-color-primary) !important;   color: var(--md-sys-color-on-primary); }
[class*="bg-gradient-"][class*="from-green"]  { background-color: var(--md-sys-color-success) !important;   color: var(--md-sys-color-on-success); }
[class*="bg-gradient-"][class*="from-purple"] { background-color: var(--md-sys-color-secondary) !important; color: var(--md-sys-color-on-secondary); }
[class*="bg-gradient-"][class*="from-yellow"] { background-color: var(--md-sys-color-warning) !important;   color: var(--md-sys-color-on-warning); }
[class*="bg-gradient-"][class*="from-red"]    { background-color: var(--md-sys-color-error) !important;     color: var(--md-sys-color-on-error); }

/* --------------------------------------------------------------------------
   23. LIST BOXES / SELECTS — versión moderna
   --------------------------------------------------------------------------
   Aplica a los .md-select y a los ~49 <select> escritos con utilidades. La
   flecha ya no es un gris fijo: se dibuja con currentColor vía máscara, así
   sigue el tema. Bordes redondeados, foco con anillo suave y opciones con
   más aire. Estilo alineado con el resto (inputs, calendario, timeslots).
   ------------------------------------------------------------------------ */

.md-select,
select:not([multiple]) {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    padding-right: 40px !important;
    background-image: none !important;
    position: relative;
    cursor: pointer;
    border-radius: var(--md-sys-shape-corner-small);
    /* La flecha se pinta con un pseudo-fondo usando máscara SVG. */
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23005187'%3E%3Cpath d='M12 15.5l-5-5 1.4-1.4L12 12.7l3.6-3.6L17 10.5z'/%3E%3C/svg%3E") !important;
    transition:
        border-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
        box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
        background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

/* Al abrirlo/enfocarlo: borde primary y anillo suave. */
.md-select:focus,
select:not([multiple]):focus {
    outline: none;
    border-color: var(--md-sys-color-primary) !important;
    box-shadow: 0 0 0 3px rgb(var(--md-sys-color-primary-rgb) / 0.12) !important;
}

.md-select:hover,
select:not([multiple]):hover {
    border-color: var(--md-sys-color-on-surface) !important;
}

/* Las opciones desplegadas (lo que el SO deja tematizar). */
.md-select option,
select option {
    background-color: var(--md-sys-color-surface-container-low);
    color: var(--md-sys-color-on-surface);
    padding: var(--md-sys-spacing-2) var(--md-sys-spacing-3);
}
.md-select option:checked,
select option:checked {
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    font-weight: 500;
}

/* Select múltiple (list box real): tarjeta redondeada con ítems espaciados. */
select[multiple] {
    appearance: none;
    border: 1px solid var(--md-sys-color-outline);
    border-radius: var(--md-sys-shape-corner-medium);
    background-color: var(--md-sys-color-surface);
    padding: var(--md-sys-spacing-1);
}
select[multiple] option {
    padding: var(--md-sys-spacing-2) var(--md-sys-spacing-3);
    border-radius: var(--md-sys-shape-corner-small);
    margin-bottom: 2px;
}
select[multiple] option:checked {
    background: var(--md-sys-color-secondary-container) linear-gradient(0deg, var(--md-sys-color-secondary-container), var(--md-sys-color-secondary-container));
    color: var(--md-sys-color-on-secondary-container);
}

/* --------------------------------------------------------------------------
   24. FIX RIPPLE — el contenido nunca queda tapado
   --------------------------------------------------------------------------
   El ripple lo inserta el JS como último hijo del elemento pulsado. Sin esto,
   durante la expansión el círculo podía quedar por encima del icono/texto
   (síntoma: "al hacer click desaparece el contenido"). Se fuerza el ripple
   por debajo y el contenido por encima en todos los componentes interactivos.
   ------------------------------------------------------------------------ */

.md-btn > .md-ripple,
.md-icon-btn > .md-ripple,
.md-fab > .md-ripple,
.md-nav-item > .md-ripple,
.md-list-item-interactive > .md-ripple,
.md-card-interactive > .md-ripple,
.md-calendar-day > .md-ripple,
.md-timeslot > .md-ripple,
.md-state-layer > .md-ripple {
    z-index: 0 !important;
}

.md-btn > *:not(.md-ripple),
.md-icon-btn > *:not(.md-ripple),
.md-fab > *:not(.md-ripple),
.md-nav-item > *:not(.md-ripple),
.md-list-item-interactive > *:not(.md-ripple),
.md-calendar-day > *:not(.md-ripple),
.md-timeslot > *:not(.md-ripple) {
    position: relative;
    z-index: 2;
}

/* --------------------------------------------------------------------------
   25. LIST BOX MODERNO (menu desplegable custom)
   --------------------------------------------------------------------------
   El dropdown nativo del <select> no se puede tematizar de forma fiable. El
   script md3-select.js envuelve cada <select> con este componente, que sí
   controlamos: panel redondeado, opciones con state layer, seleccionada con
   contenedor secundario. El <select> real queda oculto y sincronizado, así
   que el POST y la lógica de la página no cambian.
   ------------------------------------------------------------------------ */

.md-select-wrap {
    position: relative;
    width: 100%;
}

/* Botón que muestra el valor actual (reemplaza visualmente al <select>). */
.md-select-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--md-sys-spacing-2);
    width: 100%;
    min-height: 36px;
    box-sizing: border-box;
    padding: var(--md-sys-spacing-2) var(--md-sys-spacing-4);
    border: 1px solid var(--md-sys-color-outline);
    border-radius: var(--md-sys-shape-corner-small);
    background-color: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    font-family: var(--md-sys-typescale-font);
    font-size: var(--md-sys-typescale-body-large-size);
    text-align: left;
    cursor: pointer;
    transition:
        border-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
        box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-select-trigger:hover { border-color: var(--md-sys-color-on-surface); }

.md-select-wrap.md-open .md-select-trigger,
.md-select-trigger:focus-visible {
    outline: none;
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 3px rgb(var(--md-sys-color-primary-rgb) / 0.12);
}

.md-select-trigger-value { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.md-select-trigger[data-placeholder="true"] .md-select-trigger-value { color: var(--md-sys-color-on-surface-variant); }

.md-select-trigger-arrow {
    flex-shrink: 0;
    color: var(--md-sys-color-primary);
    transition: transform var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-emphasized);
}
.md-select-wrap.md-open .md-select-trigger-arrow { transform: rotate(180deg); }

/* Panel de opciones. */
.md-select-panel {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    z-index: 50;
    max-height: 280px;
    overflow-y: auto;
    padding: var(--md-sys-spacing-1);
    border-radius: var(--md-sys-shape-corner-medium);
    background-color: var(--md-sys-color-surface-container);
    box-shadow: var(--md-sys-elevation-2);
    opacity: 0;
    transform: scaleY(0.9);
    transform-origin: top;
    pointer-events: none;
    transition:
        opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
        transform var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-emphasized);
}

.md-select-wrap.md-open .md-select-panel {
    opacity: 1;
    transform: scaleY(1);
    pointer-events: auto;
}

/* Cada opción. */
.md-select-option {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--md-sys-spacing-3);
    min-height: 36px;
    padding: var(--md-sys-spacing-2) var(--md-sys-spacing-3);
    border-radius: var(--md-sys-shape-corner-small);
    color: var(--md-sys-color-on-surface);
    font-size: var(--md-sys-typescale-body-medium-size);
    cursor: pointer;
    isolation: isolate;
    transition: background-color var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}

.md-select-option::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 0;
    border-radius: inherit;
    background-color: var(--md-sys-color-on-surface);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}
.md-select-option > * { position: relative; z-index: 1; }
.md-select-option:hover::before,
.md-select-option.md-highlight::before { opacity: var(--md-sys-state-hover-opacity); }

/* La opción seleccionada: contenedor secundario + check. */
.md-select-option.md-selected {
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
    font-weight: 500;
}
.md-select-option .md-select-check {
    margin-left: auto;
    font-size: 20px;
    opacity: 0;
}
.md-select-option.md-selected .md-select-check { opacity: 1; }

.md-select-option[data-disabled="true"] {
    color: var(--md-sys-color-on-surface-variant);
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* El <select> real se oculta pero sigue en el DOM (envía el POST). */
.md-select-native-hidden {
    position: absolute !important;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
}

/* --------------------------------------------------------------------------
   26. INPUTS DE FECHA/HORA — apariencia moderna y consistente
   --------------------------------------------------------------------------
   Los <input type="date"|"time"|"datetime-local"> nativos se ven distintos en
   cada navegador. Aquí se les da el mismo tratamiento que al resto de campos y
   se tematiza el icono del selector, manteniendo el datepicker nativo (que es
   accesible y funciona en móvil) pero integrado con el diseño.
   ------------------------------------------------------------------------ */

input[type="date"],
input[type="time"],
input[type="datetime-local"],
input[type="month"],
input[type="week"] {
    position: relative;
    min-height: 36px;
    border: 1px solid var(--md-sys-color-outline);
    border-radius: var(--md-sys-shape-corner-small);
    background-color: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    font-family: var(--md-sys-typescale-font);
    padding: var(--md-sys-spacing-2) var(--md-sys-spacing-3);
    cursor: pointer;
    transition:
        border-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
        box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

input[type="date"]:hover,
input[type="time"]:hover,
input[type="datetime-local"]:hover {
    border-color: var(--md-sys-color-on-surface);
}

input[type="date"]:focus,
input[type="time"]:focus,
input[type="datetime-local"]:focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 3px rgb(var(--md-sys-color-primary-rgb) / 0.12);
}

/* El icono del calendario/reloj: tinta primary y área táctil cómoda. */
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator,
input[type="datetime-local"]::-webkit-calendar-picker-indicator {
    cursor: pointer;
    border-radius: var(--md-sys-shape-corner-full);
    padding: 4px;
    /* Recolorea el icono negro por defecto al azul de marca. */
    filter: invert(24%) sepia(63%) saturate(1200%) hue-rotate(180deg) brightness(70%);
    transition: background-color var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}
input[type="date"]::-webkit-calendar-picker-indicator:hover,
input[type="time"]::-webkit-calendar-picker-indicator:hover {
    background-color: rgb(var(--md-sys-color-primary-rgb) / 0.10);
}

/* En modo oscuro el icono debe aclararse. */
:root[data-theme="dark"] input[type="date"]::-webkit-calendar-picker-indicator,
:root[data-theme="dark"] input[type="time"]::-webkit-calendar-picker-indicator {
    filter: invert(70%) sepia(30%) saturate(600%) hue-rotate(180deg) brightness(110%);
}

/* --------------------------------------------------------------------------
   27. TRANSICIÓN DE WIZARD — leve y sutil
   --------------------------------------------------------------------------
   Solo un fundido suave con un mínimo desplazamiento vertical. Sin barrido ni
   deslizamiento lateral: el paso simplemente aparece con delicadeza.
   ------------------------------------------------------------------------ */

.md-wizard-step {
    /* Transición rápida y ágil (~200ms) entre pasos. */
    animation: md-wizard-fade 200ms var(--md-sys-motion-easing-standard-decelerate) both;
}

@keyframes md-wizard-fade {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
    .md-wizard-step { animation: none !important; }
}

/* --------------------------------------------------------------------------
   28. DATEPICKER MODERNO (calendario desplegable para input[type=date])
   --------------------------------------------------------------------------
   md3-theme.js envuelve cada <input type="date"> con este calendario, que
   comparte el lenguaje visual del resto (superficies, primary, radios). El
   input nativo queda sincronizado detrás para no romper formularios.
   ------------------------------------------------------------------------ */

.md-dp-wrap { position: relative; }

/* Campo visible que abre el calendario. */
.md-dp-field {
    display: flex;
    align-items: center;
    gap: var(--md-sys-spacing-2);
    width: 100%;
    min-height: 40px;
    box-sizing: border-box;
    padding: var(--md-sys-spacing-2) var(--md-sys-spacing-3);
    border: 1px solid var(--md-sys-color-outline);
    border-radius: var(--md-sys-shape-corner-small);
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    font-family: var(--md-sys-typescale-font);
    font-size: var(--md-sys-typescale-body-large-size);
    cursor: pointer;
    transition: border-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
                box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.md-dp-field:hover { border-color: var(--md-sys-color-on-surface); }
.md-dp-wrap.md-open .md-dp-field {
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 3px rgb(var(--md-sys-color-primary-rgb) / 0.12);
}
.md-dp-field .md-dp-icon { color: var(--md-sys-color-primary); flex-shrink: 0; }
.md-dp-field .md-dp-text { flex: 1; }
.md-dp-field[data-empty="true"] .md-dp-text { color: var(--md-sys-color-on-surface-variant); }

/* Panel del calendario. */
.md-dp-panel {
    position: absolute;
    z-index: 1500;
    top: calc(100% + 4px);
    left: 0;
    width: 288px;
    max-width: calc(100vw - 24px);
    padding: var(--md-sys-spacing-3);
    border-radius: var(--md-sys-shape-corner-large);
    background: var(--md-sys-color-surface-container-high);
    box-shadow: var(--md-sys-elevation-3);
    opacity: 0;
    transform: scale(0.96);
    transform-origin: top left;
    pointer-events: none;
    transition: opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
                transform var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-emphasized);
}
.md-dp-wrap.md-open .md-dp-panel,
.md-dp-panel.md-dp-detached { opacity: 1; transform: scale(1); pointer-events: auto; }

.md-dp-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--md-sys-spacing-2);
}
.md-dp-month {
    font-weight: 600;
    font-size: var(--md-sys-typescale-title-small-size);
    color: var(--md-sys-color-on-surface);
    text-transform: capitalize;
}
.md-dp-nav {
    width: 32px; height: 32px;
    display: inline-flex; align-items: center; justify-content: center;
    border: none; background: transparent; border-radius: 50%;
    color: var(--md-sys-color-on-surface-variant);
    cursor: pointer;
    transition: background-color var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}
.md-dp-nav:hover { background: rgb(var(--md-sys-color-on-surface-rgb) / 0.08); }

.md-dp-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; }
.md-dp-dow {
    text-align: center;
    font-size: var(--md-sys-typescale-label-small-size);
    font-weight: 600;
    color: var(--md-sys-color-on-surface-variant);
    padding: 4px 0;
    text-transform: uppercase;
}
.md-dp-day {
    aspect-ratio: 1;
    display: flex; align-items: center; justify-content: center;
    border: none; background: transparent; border-radius: 50%;
    font-size: var(--md-sys-typescale-body-medium-size);
    color: var(--md-sys-color-on-surface);
    cursor: pointer;
    transition: background-color var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard),
                color var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}
.md-dp-day:hover { background: rgb(var(--md-sys-color-on-surface-rgb) / 0.08); }
.md-dp-day.md-today { border: 1px solid var(--md-sys-color-primary); color: var(--md-sys-color-primary); font-weight: 600; }
.md-dp-day.md-selected { background: var(--md-sys-color-primary); color: var(--md-sys-color-on-primary); font-weight: 600; }
.md-dp-day.md-empty { visibility: hidden; cursor: default; }
.md-dp-day:disabled { color: rgb(var(--md-sys-color-on-surface-rgb) / 0.38); cursor: not-allowed; }

.md-dp-actions {
    display: flex; justify-content: flex-end; gap: var(--md-sys-spacing-2);
    margin-top: var(--md-sys-spacing-2);
    padding-top: var(--md-sys-spacing-2);
    border-top: 1px solid var(--md-sys-color-outline-variant);
}
.md-dp-btn {
    border: none; background: transparent;
    color: var(--md-sys-color-primary);
    font-weight: 600; font-size: var(--md-sys-typescale-label-large-size);
    padding: 6px 12px; border-radius: var(--md-sys-shape-corner-full);
    cursor: pointer;
}
.md-dp-btn:hover { background: rgb(var(--md-sys-color-primary-rgb) / 0.08); }

/* El input date real, oculto pero presente (envía el valor al formulario). */
.md-dp-native { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0,0,0,0) !important; border: 0 !important; opacity: 0 !important; pointer-events: none !important; }

@media (prefers-reduced-motion: reduce) {
    .md-dp-panel { transition: none; }
}

/* El input date se oculta hasta que el datepicker JS lo reemplaza, para no
   ver el campo nativo un instante. Solo si el runtime está activo (html.md-js),
   así sin JS el input sigue usable. */
html.md-js input[type="date"]:not([data-md-enhanced]):not([data-md-native]) {
    opacity: 0; position: absolute; pointer-events: none; height: 0; margin: 0; padding: 0; border: 0;
}
