/* ============================================================
   BASE.CSS — Editorial Ecuafuturo
   Reset moderno + Variables CSS + Tokens del sistema de diseño
   Versión: 1.0 | Mayo 2026
   ============================================================
   ÍNDICE:
   1. Google Fonts Import
   2. Variables CSS — Light Mode
   3. Variables CSS — Dark Mode
   4. Reset moderno
   5. Base tipográfica
   6. Clases utilitarias
   ============================================================ */


/* ============================================================
   1. GOOGLE FONTS
   Las fuentes se cargan vía <link> en el HTML para mejor
   rendimiento (preconnect + font-display: swap).
   Fuentes: Playfair (display) + DM Sans (body)
   ============================================================ */


/* ============================================================
   2. VARIABLES CSS — LIGHT MODE (defecto)
   ============================================================ */

:root {

  /* --- Colores de marca --- */
  --color-primary:          #1B5E47;   /* Verde profundo — principal */
  --color-primary-hover:    #164d3a;   /* Verde profundo oscurecido — hover */
  --color-primary-soft:     #98E4A3;   /* Verde menta — acentos, badges */
  --color-bg-soft:          #EAF7EC;   /* Verde agua — fondos suaves */
  --color-accent:           #3A9BD5;   /* Azul crayola — CTAs tech, links */
  --color-accent-hover:     #2e82b8;   /* Azul oscurecido — hover */
  --color-accent-lime:      #C7F25E;   /* Lima — CTAs destacados */
  --color-accent-lime-hover:#b5e050;   /* Lima hover */
  --color-ai-accent:        #8B5CF6;   /* Morado IA */

  /* --- Superficies y fondos --- */
  --color-bg:               #FFFFFF;
  --color-bg-page:          #F8FAF8;   /* Fondo general de página, ligerísimo verde */
  --color-surface:          #FFFFFF;
  --color-surface-raised:   #F4FBF5;   /* Tarjetas, paneles elevados */
  --color-surface-overlay:  rgba(27, 94, 71, 0.04); /* Hover sobre superficies */
  --color-paper-texture:    rgba(27, 94, 71, 0.035);
  --color-paper-rule:       rgba(27, 94, 71, 0.14);
  --color-tech-panel:       rgba(15, 26, 20, 0.74);
  --color-tech-panel-soft:  rgba(255, 255, 255, 0.08);
  --color-tech-border:      rgba(255, 255, 255, 0.16);
  --color-tech-grid:        rgba(199, 242, 94, 0.08);
  --color-tech-wash:        rgba(199, 242, 94, 0.10);
  --color-tech-text:        #FFFFFF;
  --color-tech-text-muted:  rgba(255, 255, 255, 0.78);

  /* --- Texto --- */
  --color-text:             #4A5568;   /* Gris pizarra — texto general */
  --color-text-dark:        #1A1F1B;   /* Negro verdoso — títulos */
  --color-text-muted:       #5A6578;   /* Gris medio — texto secundario (ajustado para contraste WCAG) */
  --color-text-disabled:    #A0AEC0;   /* Gris claro — elementos deshabilitados */
  --color-text-inverse:     #FFFFFF;   /* Texto sobre fondos oscuros */
  --color-text-on-primary:  #FFFFFF;   /* Texto sobre verde profundo */

  /* --- Bordes --- */
  --color-border:           #D1E8D5;   /* Verde claro — bordes suaves */
  --color-border-strong:    #A8D5B0;   /* Verde medio — bordes con énfasis */
  --color-border-focus:     #1B5E47;   /* Verde profundo — anillo de foco */

  /* --- Footer --- */
  --color-footer-text:      #A2B5A8;   /* Ajustado para contraste WCAG */
  --color-footer-muted:     #809686;   /* Ajustado para contraste WCAG */
  --color-footer-border:    #2A3D30;

  /* --- Estados de feedback --- */
  --color-error:            #D94F4F;
  --color-error-bg:         #FFF5F5;
  --color-success:          #2E7D52;
  --color-success-bg:       #F0FBF4;
  --color-warning:          #D97706;
  --color-warning-bg:       #FFFBEB;
  --color-info:             #3A9BD5;
  --color-info-bg:          #EBF5FB;

  /* --- Tipografía --- */
  --font-display:           'Playfair', Georgia, 'Times New Roman', serif;
  --font-body:              'DM Sans', 'Helvetica Neue', Arial, sans-serif;

  /* --- Escala tipográfica --- */
  --text-xs:                0.75rem;     /* 12px */
  --text-sm:                0.875rem;    /* 14px */
  --text-base:              1rem;        /* 16px */
  --text-lg:                1.125rem;    /* 18px */
  --text-xl:                1.25rem;     /* 20px */
  --text-2xl:               1.5rem;      /* 24px */
  --text-3xl:               1.875rem;    /* 30px */
  --text-4xl:               2.25rem;     /* 36px */
  --text-5xl:               3rem;        /* 48px */
  --text-6xl:               3.75rem;     /* 60px */
  --text-7xl:               4.5rem;      /* 72px */

  /* --- Tamaños responsivos con clamp --- */
  --text-h1:                clamp(2.25rem, 5vw, 4rem);
  --text-h2:                clamp(1.75rem, 3.5vw, 2.75rem);
  --text-h3:                clamp(1.25rem, 2vw, 1.75rem);
  --text-hero:              clamp(2.5rem, 6vw, 4.5rem);

  /* --- Pesos tipográficos --- */
  --font-light:             300;
  --font-regular:           400;
  --font-medium:            500;
  --font-semibold:          600;
  --font-bold:              700;
  --font-extrabold:         800;

  /* --- Altura de línea --- */
  --leading-tight:          1.2;
  --leading-snug:           1.4;
  --leading-normal:         1.6;
  --leading-relaxed:        1.75;
  --leading-loose:          2;

  /* --- Tracking (letter-spacing) --- */
  --tracking-tight:        -0.02em;
  --tracking-normal:        0;
  --tracking-wide:          0.05em;
  --tracking-wider:         0.1em;
  --tracking-widest:        0.32em;     /* Para versalitas tipo "EDICIONES" */

  /* --- Espaciado (múltiplos de 4px) --- */
  --space-0:                0;
  --space-1:                0.25rem;    /* 4px */
  --space-2:                0.5rem;     /* 8px */
  --space-3:                0.75rem;    /* 12px */
  --space-4:                1rem;       /* 16px */
  --space-5:                1.25rem;    /* 20px */
  --space-6:                1.5rem;     /* 24px */
  --space-7:                1.75rem;    /* 28px */
  --space-8:                2rem;       /* 32px */
  --space-10:               2.5rem;     /* 40px */
  --space-12:               3rem;       /* 48px */
  --space-14:               3.5rem;     /* 56px */
  --space-16:               4rem;       /* 64px */
  --space-20:               5rem;       /* 80px */
  --space-24:               6rem;       /* 96px */
  --space-32:               8rem;       /* 128px */

  /* --- Border radius --- */
  --radius-none:            0;
  --radius-sm:              0.375rem;   /* 6px — chips, badges pequeños */
  --radius-md:              0.75rem;    /* 12px — tarjetas, botones */
  --radius-lg:              1.25rem;    /* 20px — secciones destacadas */
  --radius-xl:              2rem;       /* 32px — hero, elementos orgánicos */
  --radius-2xl:             3rem;       /* 48px — blobs decorativos */
  --radius-full:            9999px;     /* Círculos y píldoras */

  /* --- Sombras --- */
  --shadow-xs:              0 1px 2px rgba(27, 94, 71, 0.06);
  --shadow-sm:              0 1px 3px rgba(27, 94, 71, 0.08),
                            0 1px 2px rgba(27, 94, 71, 0.04);
  --shadow-md:              0 4px 6px rgba(27, 94, 71, 0.06),
                            0 2px 4px rgba(27, 94, 71, 0.04);
  --shadow-lg:              0 10px 15px rgba(27, 94, 71, 0.08),
                            0 4px 6px rgba(27, 94, 71, 0.04);
  --shadow-xl:              0 20px 25px rgba(27, 94, 71, 0.10),
                            0 10px 10px rgba(27, 94, 71, 0.04);
  --shadow-card:            0 2px 8px rgba(27, 94, 71, 0.08),
                            0 0 0 1px var(--color-border);
  --shadow-card-hover:      0 8px 24px rgba(27, 94, 71, 0.14),
                            0 0 0 1px var(--color-border-strong);
  --shadow-focus:           0 0 0 3px rgba(27, 94, 71, 0.25);
  --shadow-focus-accent:    0 0 0 3px rgba(58, 155, 213, 0.30);

  /* --- Transiciones --- */
  --transition-fast:        150ms ease;
  --transition-base:        200ms ease;
  --transition-slow:        350ms ease;
  --transition-bounce:      300ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* --- Z-index --- */
  --z-below:               -1;
  --z-base:                 0;
  --z-raised:               10;
  --z-dropdown:             50;
  --z-sticky:               80;
  --z-navbar:               100;
  --z-overlay:              200;
  --z-modal:                300;
  --z-toast:                400;
  --z-tooltip:              500;

  /* --- Layout --- */
  --container-max:          1200px;
  --container-wide:         1400px;
  --container-narrow:       800px;
  --container-padding:      var(--space-6);  /* 24px en móvil */
  --navbar-height:          72px;
  --navbar-height-mobile:   60px;

  /* --- Aliases de compatibilidad (components.css) --- */
  --max-width:              var(--container-max);
  --gutter:                 var(--container-padding);

  /* --- Breakpoints (referencia para JS) --- */
  --bp-sm:                  640px;
  --bp-md:                  768px;
  --bp-lg:                  1024px;
  --bp-xl:                  1280px;
}


/* ============================================================
   3. VARIABLES CSS — DARK MODE
   ============================================================ */

[data-theme="dark"] {

  /* --- Colores de marca adaptados --- */
  --color-primary:          #5EC48A;   /* Verde más luminoso — legible sobre oscuro */
  --color-primary-hover:    #4db378;
  --color-primary-soft:     #2A6E4A;   /* Verde menta oscuro */
  --color-bg-soft:          #162318;   /* Verde agua oscuro */
  --color-accent:           #60B8E8;   /* Azul más claro */
  --color-accent-hover:     #4da8dc;
  --color-accent-lime:      #BAEF4E;   /* Lima ligeramente más suave */
  --color-accent-lime-hover:#a8d53d;

  /* --- Superficies y fondos --- */
  --color-bg:               #0F1A14;   /* Negro verdoso profundo */
  --color-bg-page:          #0F1A14;
  --color-surface:          #1A2620;   /* Superficies base */
  --color-surface-raised:   #213028;   /* Superficies elevadas (tarjetas) */
  --color-surface-overlay:  rgba(94, 196, 138, 0.06);
  --color-paper-texture:    rgba(184, 212, 191, 0.045);
  --color-paper-rule:       rgba(184, 212, 191, 0.16);
  --color-tech-panel:       rgba(15, 26, 20, 0.78);
  --color-tech-panel-soft:  rgba(255, 255, 255, 0.08);
  --color-tech-border:      rgba(255, 255, 255, 0.15);
  --color-tech-grid:        rgba(186, 239, 78, 0.08);
  --color-tech-wash:        rgba(186, 239, 78, 0.10);
  --color-tech-text:        #E8F5EC;
  --color-tech-text-muted:  rgba(232, 245, 236, 0.78);

  /* --- Texto --- */
  --color-text:             #B8D4BF;   /* Texto general sobre oscuro */
  --color-text-dark:        #E8F5EC;   /* Títulos sobre oscuro */
  --color-text-muted:       #7A9E85;
  --color-text-disabled:    #4A6655;
  --color-text-inverse:     #0F1A14;
  --color-text-on-primary:  #0F1A14;

  /* --- Bordes --- */
  --color-border:           #2A3D2E;
  --color-border-strong:    #3A5540;
  --color-border-focus:     #5EC48A;

  /* --- Footer --- */
  --color-footer-text:      var(--color-text);
  --color-footer-muted:     var(--color-text-muted);
  --color-footer-border:    var(--color-border);

  /* --- Estados de feedback --- */
  --color-error:            #F87171;
  --color-error-bg:         #2D1515;
  --color-success:          #5EC48A;
  --color-success-bg:       #0F2A1A;
  --color-warning:          #FBBF24;
  --color-warning-bg:       #2D1F05;
  --color-info:             #60B8E8;
  --color-info-bg:          #0A1D2D;

  /* --- Sombras oscuras --- */
  --shadow-xs:              0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm:              0 1px 3px rgba(0, 0, 0, 0.4),
                            0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md:              0 4px 6px rgba(0, 0, 0, 0.3),
                            0 2px 4px rgba(0, 0, 0, 0.2);
  --shadow-lg:              0 10px 15px rgba(0, 0, 0, 0.4),
                            0 4px 6px rgba(0, 0, 0, 0.2);
  --shadow-xl:              0 20px 25px rgba(0, 0, 0, 0.5),
                            0 10px 10px rgba(0, 0, 0, 0.2);
  --shadow-card:            0 2px 8px rgba(0, 0, 0, 0.3),
                            0 0 0 1px var(--color-border);
  --shadow-card-hover:      0 8px 24px rgba(0, 0, 0, 0.4),
                            0 0 0 1px var(--color-border-strong);
  --shadow-focus:           0 0 0 3px rgba(94, 196, 138, 0.30);
  --shadow-focus-accent:    0 0 0 3px rgba(96, 184, 232, 0.35);
}

/* Detección automática de preferencia del sistema */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-primary:          #5EC48A;
    --color-primary-hover:    #4db378;
    --color-primary-soft:     #2A6E4A;
    --color-bg-soft:          #162318;
    --color-accent:           #60B8E8;
    --color-accent-hover:     #4da8dc;
    --color-accent-lime:      #BAEF4E;
    --color-bg:               #0F1A14;
    --color-bg-page:          #0F1A14;
    --color-surface:          #1A2620;
    --color-surface-raised:   #213028;
    --color-surface-overlay:  rgba(94, 196, 138, 0.06);
    --color-paper-texture:    rgba(184, 212, 191, 0.045);
    --color-paper-rule:       rgba(184, 212, 191, 0.16);
    --color-tech-panel:       rgba(15, 26, 20, 0.78);
    --color-tech-panel-soft:  rgba(255, 255, 255, 0.08);
    --color-tech-border:      rgba(255, 255, 255, 0.15);
    --color-tech-grid:        rgba(186, 239, 78, 0.08);
    --color-tech-wash:        rgba(186, 239, 78, 0.10);
    --color-tech-text:        #E8F5EC;
    --color-tech-text-muted:  rgba(232, 245, 236, 0.78);
    --color-text:             #B8D4BF;
    --color-text-dark:        #E8F5EC;
    --color-text-muted:       #7A9E85;
    --color-text-disabled:    #4A6655;
    --color-text-inverse:     #0F1A14;
    --color-text-on-primary:  #0F1A14;
    --color-border:           #2A3D2E;
    --color-border-strong:    #3A5540;
    --color-border-focus:     #5EC48A;
    --color-error:            #F87171;
    --color-error-bg:         #2D1515;
    --color-success:          #5EC48A;
    --color-success-bg:       #0F2A1A;
    --color-warning:          #FBBF24;
    --color-warning-bg:       #2D1F05;
    --color-info:             #60B8E8;
    --color-info-bg:          #0A1D2D;
    --shadow-xs:              0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-sm:              0 1px 3px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md:              0 4px 6px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-lg:              0 10px 15px rgba(0, 0, 0, 0.4), 0 4px 6px rgba(0, 0, 0, 0.2);
    --shadow-xl:              0 20px 25px rgba(0, 0, 0, 0.5), 0 10px 10px rgba(0, 0, 0, 0.2);
    --shadow-card:            0 2px 8px rgba(0, 0, 0, 0.3), 0 0 0 1px var(--color-border);
    --shadow-card-hover:      0 8px 24px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--color-border-strong);
    --shadow-focus:           0 0 0 3px rgba(94, 196, 138, 0.30);
    --shadow-focus-accent:    0 0 0 3px rgba(96, 184, 232, 0.35);
  }
}


/* ============================================================
   4. RESET MODERNO
   ============================================================ */

/* Box sizing universal */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Raíz del documento */
html {
  font-size: 100%;                  /* 16px base */
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  hanging-punctuation: first last;
}

/* Respeta la preferencia de movimiento reducido */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Body base */
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-regular);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-bg-page);
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Imágenes y media */
img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

/* Herencia tipográfica en inputs */
input,
button,
textarea,
select {
  font: inherit;
}

/* Párrafos y headings */
p,
h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--color-text-dark);
  letter-spacing: var(--tracking-tight);
}

/* Links */
a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition-fast),
              text-decoration-color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

/* Foco visible global — NUNCA ocultar sin reemplazo */
:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Listas */
ul,
ol {
  list-style: none;
}

/* Botones — reset base */
button {
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

/* Tablas */
table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* Formularios */
fieldset {
  border: none;
}

legend {
  font-weight: var(--font-semibold);
  color: var(--color-text-dark);
}

/* Citas */
blockquote {
  quotes: none;
}

/* HR */
hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-8) 0;
}

/* Selección de texto */
::selection {
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
}


/* ============================================================
   5. BASE TIPOGRÁFICA
   ============================================================ */

/* Jerarquía de headings */
h1 { font-size: var(--text-h1); }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

/* Párrafo */
p {
  color: var(--color-text);
  line-height: var(--leading-normal);
}

/* Contexto de lectura — ancho óptimo */
.prose p,
article > p {
  max-width: 68ch;
}

/* Texto pequeño y captions */
small,
.text-sm {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* Énfasis */
strong,
b {
  font-weight: var(--font-bold);
  color: var(--color-text-dark);
}

em,
i {
  font-style: italic;
}

/* Código */
code,
kbd,
samp,
pre {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9em;
}

code {
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.15em 0.4em;
}


/* ============================================================
   6. CLASES UTILITARIAS
   ============================================================ */

/* --- Sección con espaciado vertical estándar --- */
.section {
  padding-block: var(--space-20);
}

.section--sm {
  padding-block: var(--space-12);
}

.section--lg {
  padding-block: var(--space-20) var(--space-28);
}

/* --- Contenedores --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.container--wide {
  max-width: var(--container-wide);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* --- Accesibilidad --- */

/* Oculto visualmente pero accesible para lectores de pantalla */
.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;
}

/* Skip link — visible al recibir foco */
.skip-link {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  z-index: var(--z-toast);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: var(--color-text-on-primary);
  font-family: var(--font-body);
  font-weight: var(--font-semibold);
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  text-decoration: none;
  transform: translateY(-120%);
  transition: transform var(--transition-base);
}

.skip-link:focus {
  transform: translateY(0);
  width: auto;
  height: auto;
  clip: auto;
  overflow: visible;
  margin: 0;
  padding: var(--space-3) var(--space-6);
}

/* --- Tipografía utilitaria --- */
.font-display    { font-family: var(--font-display); }
.font-body       { font-family: var(--font-body); }

.text-xs         { font-size: var(--text-xs); }
.text-sm         { font-size: var(--text-sm); }
.text-base       { font-size: var(--text-base); }
.text-lg         { font-size: var(--text-lg); }
.text-xl         { font-size: var(--text-xl); }
.text-2xl        { font-size: var(--text-2xl); }
.text-3xl        { font-size: var(--text-3xl); }

.font-light      { font-weight: var(--font-light); }
.font-regular    { font-weight: var(--font-regular); }
.font-medium     { font-weight: var(--font-medium); }
.font-semibold   { font-weight: var(--font-semibold); }
.font-bold       { font-weight: var(--font-bold); }

.text-left       { text-align: left; }
.text-center     { text-align: center; }
.text-right      { text-align: right; }

.uppercase       { text-transform: uppercase; letter-spacing: var(--tracking-wider); }
.capitalize      { text-transform: capitalize; }

.tracking-wide   { letter-spacing: var(--tracking-wide); }
.tracking-wider  { letter-spacing: var(--tracking-wider); }
.tracking-widest { letter-spacing: var(--tracking-widest); }

/* --- Colores de texto utilitarios --- */
.text-primary    { color: var(--color-primary); }
.text-accent     { color: var(--color-accent); }
.text-muted      { color: var(--color-text-muted); }
.text-dark       { color: var(--color-text-dark); }
.text-inverse    { color: var(--color-text-inverse); }
.text-success    { color: var(--color-success); }
.text-error      { color: var(--color-error); }
.text-warning    { color: var(--color-warning); }

/* --- Fondos utilitarios --- */
.bg-primary      { background-color: var(--color-primary); }
.bg-soft         { background-color: var(--color-bg-soft); }
.bg-surface      { background-color: var(--color-surface); }
.bg-raised       { background-color: var(--color-surface-raised); }

/* --- Espaciado utilitario --- */
.mt-auto         { margin-top: auto; }
.mb-auto         { margin-bottom: auto; }
.mx-auto         { margin-inline: auto; }

/* --- Flexbox utilitario --- */
.flex            { display: flex; }
.flex-col        { display: flex; flex-direction: column; }
.items-center    { align-items: center; }
.items-start     { align-items: flex-start; }
.justify-center  { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2           { gap: var(--space-2); }
.gap-4           { gap: var(--space-4); }
.gap-6           { gap: var(--space-6); }
.gap-8           { gap: var(--space-8); }

/* --- Grid utilitario --- */
.grid            { display: grid; }

/* --- Visibilidad responsiva --- */
.hide-mobile {
  display: none;
}

@media (min-width: 768px) {
  .hide-mobile {
    display: revert;
  }

  .hide-desktop {
    display: none;
  }

  .container {
    --container-padding: var(--space-8); /* 32px en tablet+ */
  }
}

@media (min-width: 1024px) {
  .container {
    --container-padding: var(--space-10); /* 40px en desktop */
  }
}

/* --- Sombras utilitarias --- */
.shadow-sm       { box-shadow: var(--shadow-sm); }
.shadow-md       { box-shadow: var(--shadow-md); }
.shadow-lg       { box-shadow: var(--shadow-lg); }
.shadow-card     { box-shadow: var(--shadow-card); }

/* --- Border radius utilitario --- */
.rounded-sm      { border-radius: var(--radius-sm); }
.rounded-md      { border-radius: var(--radius-md); }
.rounded-lg      { border-radius: var(--radius-lg); }
.rounded-full    { border-radius: var(--radius-full); }

/* --- Overflow --- */
.overflow-hidden { overflow: hidden; }
.truncate        {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- Aspect ratio --- */
.aspect-square   { aspect-ratio: 1 / 1; }
.aspect-video    { aspect-ratio: 16 / 9; }
.aspect-book     { aspect-ratio: 2 / 3; }  /* Portada de libro */

/* --- Imagen de objeto --- */
.object-cover    { object-fit: cover; object-position: center; }
.object-contain  { object-fit: contain; }

/* --- Placeholder de imagen (mientras carga) --- */
.img-placeholder {
  background: var(--color-surface-raised);
  background-image: linear-gradient(
    90deg,
    var(--color-surface-raised) 0%,
    var(--color-bg-soft) 50%,
    var(--color-surface-raised) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@media (prefers-reduced-motion: reduce) {
  .img-placeholder {
    animation: none;
  }
}

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* --- Separador decorativo --- */
.divider {
  width: 100%;
  height: 1px;
  background: var(--color-border);
  border: none;
  margin: var(--space-8) 0;
}

.divider--green {
  background: linear-gradient(
    to right,
    transparent,
    var(--color-primary-soft),
    transparent
  );
}

/* ============================================================
   FIN DE BASE.CSS
   Siguiente archivo: components.css
   ============================================================ */