/* ==========================================================================
   Longevidad y Salud 360 — Design Tokens
   v1.0
   ========================================================================== */

/* --------------------------------------------------------------------------
   Tipografías self-hosted
   Descarga los .woff2 desde fonts.google.com y colócalos en /assets/fonts/.
   -------------------------------------------------------------------------- */
@font-face {
  font-family: 'Fraunces';
  src: url('/assets/fonts/Fraunces-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Fraunces';
  src: url('/assets/fonts/Fraunces-Italic.woff2') format('woff2');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'Fraunces';
  src: url('/assets/fonts/Fraunces-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('/assets/fonts/Inter-Light.woff2') format('woff2');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('/assets/fonts/Inter-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('/assets/fonts/Inter-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* --------------------------------------------------------------------------
   Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Colores */
  --color-ink:        #14211C;   /* Texto principal, casi negro con tinte verde */
  --color-ivory:      #F1ECDF;   /* Fondo principal, marfil cálido */
  --color-cream:      #F9F6EF;   /* Superficies de tarjetas, off-white */
  --color-forest:     #173F35;   /* Acento institucional, verde bosque */
  --color-forest-soft:#22574A;   /* Verde bosque suavizado, hover */
  --color-bronze:     #A78D5E;   /* Microdetalles, números, eyebrows */
  --color-muted:      #666A61;   /* Texto secundario */
  --color-line:       #D9D2C2;   /* Bordes principales */
  --color-line-soft:  #E7E1D3;   /* Bordes suaves */
  --color-on-forest-primary: #F1ECDF;  /* Texto sobre verde bosque */
  --color-on-forest-muted:   #BDB7A6;  /* Texto secundario sobre verde bosque */
  --color-on-forest-line:    #3E6154;  /* Bordes/líneas sobre fondo forest */

  /* Tipografía */
  --font-serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Escala tipográfica (mobile-first; las páginas amplían en breakpoints) */
  --fs-display:     clamp(40px, 7vw, 72px);  /* H1 hero de home */
  --fs-page-title:  clamp(36px, 5vw, 58px);  /* H1 de páginas interiores */
  --fs-section:     clamp(28px, 4vw, 46px);  /* H2 sección */
  --fs-subsection:  clamp(20px, 2.6vw, 26px);/* H3 / titular de tarjeta */
  --fs-quote:       clamp(22px, 2.8vw, 34px);/* Cita editorial / manifiesto */
  --fs-body-lg:     17px;                    /* Lead paragraph */
  --fs-body:        15px;                    /* Texto general */
  --fs-small:       13px;                    /* Texto auxiliar */
  --fs-eyebrow:     11px;                    /* Eyebrow / kicker */
  --fs-micro:       10px;                    /* Microcopy */

  /* Espaciado vertical (rem) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  /* Layout */
  --container-max: 1280px;
  --container-pad: clamp(20px, 5vw, 72px);

  /* Otros */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --line-thin: 0.5px;
  --transition: 240ms cubic-bezier(0.2, 0, 0, 1);
}

/* --------------------------------------------------------------------------
   Reset mínimo
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-ivory);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img, picture, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-forest); }

/* --------------------------------------------------------------------------
   Tipografía base
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.1;
  margin: 0 0 var(--space-4);
  color: var(--color-ink);
}
h1 { font-size: var(--fs-display); line-height: 1.04; letter-spacing: -0.02em; }
h2 { font-size: var(--fs-section); line-height: 1.05; }
h3 { font-size: var(--fs-subsection); line-height: 1.2; }
h4 { font-size: 18px; }

p { margin: 0 0 var(--space-4); line-height: 1.7; }
.lead { font-size: var(--fs-body-lg); color: var(--color-muted); font-weight: 300; line-height: 1.65; }

em, .italic { font-style: italic; color: var(--color-forest); }

/* --------------------------------------------------------------------------
   Eyebrow (kicker pequeño en mayúsculas)
   -------------------------------------------------------------------------- */
.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--fs-eyebrow);
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-bronze);
  margin-bottom: var(--space-5);
}
.eyebrow::before { content: "— "; }

/* --------------------------------------------------------------------------
   Botones
   -------------------------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 16px 26px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: var(--line-thin) solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--color-forest);
  color: var(--color-on-forest-primary);
}
.btn-primary:hover { background: var(--color-forest-soft); color: var(--color-on-forest-primary); }
.btn-ghost {
  background: transparent;
  color: var(--color-forest);
  border-color: var(--color-forest);
}
.btn-ghost:hover { background: var(--color-forest); color: var(--color-on-forest-primary); }
.btn-light {
  background: var(--color-ivory);
  color: var(--color-forest);
}
.btn-light:hover { background: var(--color-cream); }

/* --------------------------------------------------------------------------
   Tarjetas
   -------------------------------------------------------------------------- */
.card {
  background: var(--color-cream);
  border: var(--line-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  transition: border-color var(--transition);
}
.card:hover { border-color: var(--color-forest); }
.card.invert {
  background: var(--color-forest);
  border-color: transparent;
  color: var(--color-on-forest-primary);
}
.card.invert .card-cat { color: #BFAF8A; }
.card.invert .card-desc { color: var(--color-on-forest-muted); }

.card-cat {
  font-size: var(--fs-micro);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-bronze);
  margin-bottom: var(--space-4);
}
.card-title {
  font-family: var(--font-serif);
  font-size: var(--fs-subsection);
  line-height: 1.2;
  margin-bottom: var(--space-3);
}
.card-desc {
  font-size: var(--fs-small);
  color: var(--color-muted);
  line-height: 1.55;
  font-weight: 300;
}

/* --------------------------------------------------------------------------
   Layout helpers
   -------------------------------------------------------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}
.divider { border: 0; border-top: var(--line-thin) solid var(--color-line); margin: 0; }

/* --------------------------------------------------------------------------
   Foco accesible
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--color-forest);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}