/* Reset + base shared across variants */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-md);
  line-height: 1.6;
  font-variant-ligatures: no-contextual;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  font-variation-settings: "SOFT" 50, "WONK" 0, "opsz" 144;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 var(--sp-2);
}
h1 { font-size: var(--fs-hero); font-weight: 400; }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); font-weight: 600; }

p { margin: 0 0 var(--sp-2); max-width: 65ch; }
a { color: inherit; text-decoration: none; }

img, svg { display: block; max-width: 100%; height: auto; }

/* Bilingüe ES/EN: el toggle (reveal.js) usa el atributo [hidden]. Sin esto, reglas
   con `display` (p.ej. .gallery-cap strong { display:block }) lo anulan y se ven ES+EN
   a la vez (doble título). !important garantiza que [hidden] siempre gane. */
[hidden] { display: none !important; }

.container {
  width: min(100% - 2.5rem, var(--container));
  margin-inline: auto;
}
.container-narrow {
  width: min(100% - 2.5rem, var(--container-narrow));
  margin-inline: auto;
}

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: var(--sp-2);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}

.verse {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: var(--fs-lg);
  line-height: 1.4;
  letter-spacing: -0.01em;
}
.verse cite {
  display: block;
  font-style: normal;
  font-size: var(--fs-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-top: var(--sp-2);
  opacity: 0.7;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.6rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-sm);
  letter-spacing: 0.02em;
  border-radius: 999px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
  min-height: 44px;
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}
.btn .arrow {
  width: 14px; height: 14px;
  transition: transform var(--dur-fast) var(--ease-out);
}
.btn:hover .arrow { transform: translateX(4px); }

/* Brushstroke divider SVG mask — sello de marca heredado del PDF */
.brushstroke {
  --brush-color: var(--r2k-blue);
  display: block;
  width: 100%;
  height: 60px;
  background: var(--brush-color);
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 60' preserveAspectRatio='none'><path d='M0,35 C120,10 240,55 360,30 C480,8 620,50 760,28 C880,12 1000,48 1200,22 L1200,60 L0,60 Z' fill='black'/></svg>") no-repeat center/100% 100%;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 60' preserveAspectRatio='none'><path d='M0,35 C120,10 240,55 360,30 C480,8 620,50 760,28 C880,12 1000,48 1200,22 L1200,60 L0,60 Z' fill='black'/></svg>") no-repeat center/100% 100%;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}
.reveal.in {
  opacity: 1;
  transform: none;
}

/* Header shared */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--header-border, transparent);
  transition: background var(--dur-fast) var(--ease-out);
}
.site-header .container {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding-block: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 60px;
  height: 60px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  font-size: 0;
  color: transparent;
  flex-shrink: 0;
}
/* Emblema oficial Rescate 2000 recoloreado a DORADO (acento de marca), sin caja:
   integra con el header oscuro y elegante. El logo ya trae su wordmark → sin texto aparte. */
.brand-mark::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("../img/logo-gold.png");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  transition: transform var(--dur-med) var(--ease-out);
}
.brand:hover .brand-mark::before { transform: scale(1.06); }

/* Variante clara (Variante B + chooser): emblema a color sobre fondo claro */
.brand-mark.is-light::before {
  background-image: url("../img/logo-emblem.png");
}

/* ===== HEADER DINÁMICO (opt-in con .header-dynamic) =====
   ARRIBA del scroll: fondo claro degradado blanco→azul + logo original a color.
   Al hacer scroll: cae al estilo por defecto = oscuro + glass + logo dorado.
   El toggle de la clase .header-light lo hace reveal.js según window.scrollY. */
.site-header { transition: background .35s ease, backdrop-filter .35s ease, border-color .35s ease; }
.site-header .nav a,
.site-header .brand,
.site-header .lang-toggle,
.site-header .nav-toggle { transition: color .35s ease, border-color .35s ease, background .35s ease; }

/* Segundo logo (a color) para crossfade suave con el dorado del ::before */
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../img/logo-emblem.png") center/contain no-repeat;
  opacity: 0;
  transition: opacity .35s ease;
}

.site-header.header-light {
  background: linear-gradient(90deg, #ffffff 0%, #f1f6fd 42%, #d7e5f7 100%) !important;
  border-bottom: 1px solid rgba(46,91,168,0.18);
  color: #16233c;
}
.site-header.header-light .brand { color: #16233c; }
.site-header.header-light .brand-mark::before { opacity: 0; } /* oculta el dorado */
.site-header.header-light .brand-mark::after  { opacity: 1; } /* muestra el color */
.site-header.header-light .nav a { color: #16233c; }
.site-header.header-light .lang-toggle { color: #16233c; }
.site-header.header-light .lang-toggle button[aria-pressed="true"] { background: #16233c; }
.site-header.header-light .lang-toggle button[aria-pressed="true"] span { color: #ffffff; }
.site-header.header-light .nav-toggle { color: #16233c; }

.nav {
  display: flex;
  gap: var(--sp-3);
  margin-left: auto;
  align-items: center;
}
.nav a {
  font-size: var(--fs-sm);
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1.5px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-fast) var(--ease-out);
}
.nav a:hover::after { transform: scaleX(1); }

/* Página activa (se resalta en ambos estados del header dinámico) */
.nav a.is-active { color: var(--accent); font-weight: 700; }      /* estado oscuro: dorado */
.nav a.is-active::after { transform: scaleX(1); }                  /* subrayado permanente */
.site-header.header-light .nav a.is-active { color: #2E5BA8; }     /* estado claro: azul de marca */
.lang-toggle {
  display: inline-flex;
  border: 1px solid currentColor;
  border-radius: 999px;
  overflow: hidden;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
}
.lang-toggle button {
  background: transparent;
  border: 0;
  padding: 0.4rem 0.8rem;
  color: inherit;
  cursor: pointer;
  min-height: 32px;
}
.lang-toggle button[aria-pressed="true"] {
  background: currentColor;
}
.lang-toggle button[aria-pressed="true"] span { color: var(--page-bg, #fff); }

/* Mobile-only lang-toggle inside nav panel (hidden on desktop) */
.nav-lang { display: none; }

/* Hamburger button (hidden on desktop) */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid currentColor;
  border-radius: 50%;
  color: inherit;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  padding: 0;
  flex-shrink: 0;
}
.nav-toggle span {
  position: relative;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--dur-fast) var(--ease-out),
              top var(--dur-fast) var(--ease-out),
              bottom var(--dur-fast) var(--ease-out);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { bottom: -6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { bottom: 0; transform: rotate(-45deg); }

@media (max-width: 880px) {
  /* Remove backdrop-filter on mobile so fixed children position relative to viewport, not header */
  .site-header {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: var(--page-bg, #0E1320) !important;
  }
  /* Header dinámico en móvil: estado claro arriba */
  .site-header.header-light { background: linear-gradient(90deg,#ffffff,#dbe7f8) !important; }
  .site-header.header-light .nav { background: #f1f6fd; }
  .site-header.header-light .nav a { color: #16233c; border-bottom-color: rgba(46,91,168,0.12); }
  .site-header .container { gap: 0.6rem; }
  .nav-toggle { display: inline-flex; }

  /* Slide-out mobile nav panel */
  .nav {
    position: fixed;
    top: 64px;
    right: 0;
    bottom: 0;
    left: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--page-bg, #0E1320);
    padding: var(--sp-4) var(--sp-3);
    transform: translateX(100%);
    transition: transform var(--dur-med) var(--ease-out);
    overflow-y: auto;
    z-index: 49;
    margin-left: 0;
    border-top: 1px solid var(--header-border, rgba(255,255,255,0.08));
  }
  .nav[data-open="true"] { transform: translateX(0); }
  .nav a {
    font-size: var(--fs-lg);
    padding: 1.1rem 0;
    border-bottom: 1px solid var(--header-border, rgba(255,255,255,0.08));
  }
  .nav a::after { display: none; }
  body[data-nav-open="true"] { overflow: hidden; }

  /* Tighter header on mobile: brand + donate + hamburger only */
  .site-header > .container > .lang-toggle { display: none; }
  .nav-lang { display: inline-flex; align-self: flex-start; }
  .site-header .btn { padding: 0.7rem 1.1rem; font-size: var(--fs-xs); }
  .brand span:not(.brand-mark) { font-size: 1rem; }
}

@media (max-width: 480px) {
  .brand span:not(.brand-mark) { display: none; }
}

/* Footer shared */
.site-footer {
  padding: var(--sp-5) 0 var(--sp-4);
  border-top: 1px solid var(--header-border, transparent);
}
.footer-grid {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
}
.footer-grid h5 {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin: 0 0 var(--sp-2);
  opacity: 0.7;
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.5rem; }
.footer-grid li a { font-size: var(--fs-sm); opacity: 0.85; }
.footer-grid li a:hover { opacity: 1; }
.footer-legal {
  margin-top: var(--sp-4);
  padding-top: var(--sp-3);
  border-top: 1px solid var(--header-border, transparent);
  display: flex;
  justify-content: space-between;
  font-size: var(--fs-xs);
  opacity: 0.6;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}