/* ============================================================
   Instituto para una Sociedad Libre — Design tokens & base
   ============================================================ */
:root {
  /* Brand colors (fixed) */
  --color-navy: #0F376E;
  --color-navy-700: #0B2C58;
  --color-navy-900: #081F3D;
  --color-navy-100: #E7ECF3;
  --color-red: #B31210;
  --color-red-700: #8C0E0C;
  --color-white: #FFFFFF;

  /* Functional */
  --color-ink: #1B2230;
  --color-muted: #5B6472;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F5F6F9;
  --color-border: #E3E7EE;
  --color-on-navy: #FFFFFF;
  --color-on-navy-muted: #C7D2E4;

  /* Type */
  --font-base: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* Layout */
  --container-max: 1200px;
  --header-h: 96px;
  --radius: 12px;
  --radius-sm: 6px;

  /* Motion */
  --ease: cubic-bezier(.4,0,.2,1);
  --dur-fast: 180ms;
  --dur-base: 300ms;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(15,55,110,.06), 0 1px 3px rgba(15,55,110,.08);
  --shadow-md: 0 8px 24px rgba(15,55,110,.10);
  --shadow-lg: 0 20px 48px rgba(15,55,110,.16);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-base);
  font-weight: 800;
  color: var(--color-navy);
  line-height: 1.15;
  margin: 0 0 var(--space-4);
}

h2 { font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.4rem); text-transform: uppercase; letter-spacing: .02em; }
h3 { font-size: 1.15rem; margin-bottom: var(--space-2); }
h4 { font-size: 1rem; margin-bottom: var(--space-1); }

p { margin: 0 0 var(--space-4); color: var(--color-muted); }

a { color: inherit; text-decoration: none; }

ul { list-style: none; margin: 0; padding: 0; }

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.icon {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
.icon-lg { width: 40px; height: 40px; stroke-width: 1.4; color: var(--color-red); }

.eyebrow {
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--color-red);
  margin: 0 0 var(--space-3);
}
.eyebrow-light { color: var(--color-on-navy-muted); }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-navy);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 3px solid var(--color-red);
  outline-offset: 2px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: .8em 1.6em;
  border-radius: 999px;
  font-weight: 700;
  font-size: .85rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
  min-height: 44px;
}
.btn-primary {
  background: var(--color-red);
  color: #fff;
}
.btn-primary:hover { background: var(--color-red-700); transform: translateY(-1px); }

/* ============================================================
   Reveal-on-scroll
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease);
}
.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
  border-bottom-color: var(--color-border);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}
.brand-logo { height: 68px; width: auto; }

.nav { display: flex; align-items: center; gap: var(--space-7); }
.nav-list { display: flex; align-items: center; gap: var(--space-6); }
.nav-list a {
  font-weight: 600;
  font-size: .92rem;
  color: var(--color-navy);
  position: relative;
  padding: var(--space-2) 0;
}
.nav-list a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--color-red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-fast) var(--ease);
}
.nav-list a:hover::after,
.nav-list a:focus-visible::after { transform: scaleX(1); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-navy);
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}
.nav-toggle .icon { width: 26px; height: 26px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  scroll-margin-top: var(--header-h);
}
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(155deg, rgba(8,31,61,.90) 0%, rgba(15,55,110,.82) 45%, rgba(15,55,110,.72) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  padding-block: var(--space-9);
}
.hero-title {
  color: #fff;
  font-size: clamp(2.1rem, 1.5rem + 3.2vw, 4rem);
  max-width: 16ch;
  margin-bottom: var(--space-7);
}
.scroll-cue {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: #fff;
  font-weight: 700;
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  border-bottom: 2px solid var(--color-red);
  padding-bottom: var(--space-2);
}
.scroll-cue .icon { animation: bob 1.6s ease-in-out 3; }
@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

/* ============================================================
   Sections
   ============================================================ */
.section { padding-block: var(--space-9); scroll-margin-top: var(--header-h); }
.site-footer { scroll-margin-top: var(--header-h); }
.section-alt { background: var(--color-bg-alt); }
.section-flush { padding-block: 0 var(--space-9); }

.section-head { max-width: 62ch; margin-bottom: var(--space-7); }
.section-intro { font-size: 1.05rem; }

.lead-statement {
  font-size: clamp(1.4rem, 1.1rem + 1.2vw, 2rem);
  text-transform: none;
  letter-spacing: normal;
}

.prose { max-width: 74ch; }
.prose-narrow { max-width: 68ch; }
.prose-tight p { margin-bottom: var(--space-3); }
.prose p { font-size: 1.02rem; }

.pull-quote {
  margin: var(--space-6) 0;
  padding: var(--space-2) 0 var(--space-2) var(--space-5);
  border-left: 3px solid var(--color-red);
  font-weight: 600;
  font-size: 1.08rem;
  color: var(--color-navy);
  font-style: normal;
}

.news-closing { font-weight: 700; color: var(--color-navy); }

/* ============================================================
   Misión y Visión
   ============================================================ */
.mv-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}
.mv-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-red);
  border-radius: var(--radius);
  padding: var(--space-7);
  box-shadow: var(--shadow-sm);
}
.mv-card .eyebrow { margin-top: var(--space-4); }
.mv-card p:last-child { margin-bottom: 0; }

/* ============================================================
   Historia
   ============================================================ */
.historia-band {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  margin-bottom: var(--space-9);
}
.historia-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
}
.historia-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8,31,61,.55) 0%, rgba(8,31,61,.88) 100%);
}
.historia-band-content {
  position: relative;
  z-index: 1;
  padding-block: var(--space-8) var(--space-7);
}
.historia-title {
  color: #fff;
  margin-bottom: var(--space-6);
}
.timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.timeline-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255,255,255,.25);
  color: #fff;
}
.timeline-year {
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
  min-width: 110px;
}
.timeline-label {
  color: var(--color-on-navy-muted);
  font-weight: 500;
}

/* ============================================================
   Directorio
   ============================================================ */
.directorio-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-6);
}
.director-card {
  flex: 1 1 230px;
  max-width: 260px;
}
.director-card figure {
  margin: 0;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}
.director-card:hover figure,
.director-card:focus-within figure {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.director-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: top center;
}
.director-card figcaption {
  padding: var(--space-4) var(--space-4) var(--space-5);
  border-top: 3px solid var(--color-red);
}
.director-card h3 { margin-bottom: var(--space-1); font-size: 1.05rem; }
.director-card p { margin: 0; font-size: .9rem; color: var(--color-red); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }

/* ============================================================
   Noticias
   ============================================================ */
.noticias-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
  align-items: start;
}
.news-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-7);
  box-shadow: var(--shadow-sm);
}
.tag {
  display: inline-block;
  background: var(--color-navy-100);
  color: var(--color-navy);
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: var(--space-1) var(--space-3);
  border-radius: 999px;
  margin-bottom: var(--space-4);
}
.tag-event { background: var(--color-red); color: #fff; }

.news-card h3 { font-size: 1.3rem; margin-bottom: var(--space-3); }
.news-lead { font-weight: 600; color: var(--color-navy); font-size: 1.02rem; }
.news-organizers { font-size: .88rem; font-style: italic; margin-bottom: var(--space-3); }

.panelists {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin: var(--space-6) 0;
  padding: var(--space-5) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.panelist-head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-1);
}
.panelist h4 { margin: 0; }
.panelist p { margin: 0; font-size: .92rem; }
.country-pill {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--color-red);
  border: 1px solid var(--color-red);
  border-radius: 999px;
  padding: 2px var(--space-3);
}

.event-meta { display: flex; flex-direction: column; gap: var(--space-3); }
.event-meta li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-weight: 600;
  color: var(--color-navy);
  font-size: .95rem;
}
.event-meta .icon { color: var(--color-red); margin-top: 2px; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--color-navy-900);
  color: var(--color-on-navy-muted);
  padding-block: var(--space-8) var(--space-5);
}
.footer-inner {
  display: grid;
  gap: var(--space-7);
  grid-template-columns: 1fr;
  padding-bottom: var(--space-7);
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.footer-logo-plate {
  display: inline-flex;
  background: #fff;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-5);
}
.footer-logo {
  height: 60px;
  width: auto;
}
.footer-brand p { color: var(--color-on-navy-muted); max-width: 42ch; }
.footer-col h3 {
  color: #fff;
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: var(--space-4);
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a { transition: color var(--dur-fast) var(--ease); }
.footer-col a:hover { color: #fff; }
.footer-contact li { display: flex; align-items: center; gap: var(--space-3); font-size: .92rem; }
.footer-bottom { padding-top: var(--space-5); }
.footer-bottom p { margin: 0; font-size: .82rem; color: rgba(255,255,255,.55); }

/* ============================================================
   Responsive
   ============================================================ */
@media (min-width: 640px) {
  .mv-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline { flex-direction: row; }
  .timeline-item { flex-direction: column; align-items: flex-start; flex: 1; gap: var(--space-2); }
}

@media (min-width: 768px) {
  .footer-inner { grid-template-columns: 1.4fr 1fr 1fr; }
}

@media (min-width: 1024px) {
  .nav-list { display: flex; }
  .noticias-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 1023px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    display: none;
    position: fixed;
    inset: var(--header-h) 0 0 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: var(--space-7) var(--space-5);
    gap: var(--space-7);
    overflow-y: auto;
  }
  .nav.is-open { display: flex; }
  .nav-list { flex-direction: column; align-items: flex-start; gap: var(--space-5); }
  .nav-list a { font-size: 1.1rem; }
  .nav-cta { align-self: flex-start; }
}