/* ============================================================
   INSTITUTO FOUR — Editorial edition
   Prestige-academic language (HKS-genre, original) adapted to brand
   Serif display (Newsreader) + clean sans (Archivo)
   Cream/white canvas · navy authority · orange accent
   ============================================================ */

:root {
  /* Brand */
  --navy:   #130f3b;  /* Cetacean Blue */
  --navy-2: #101c52;  /* Space Cadet */
  --ink:    #0b0826;
  --orange: #fda500;  /* Faux-Orange */
  --orange-d:#e09400;
  --amber:  #fca84c;  /* Neon Carrot */

  /* Canvas */
  --paper:  #fbfaf6;
  --paper-2:#ffffff;
  --cream:  #f1ece1;
  --cream-2:#e9e3d5;

  /* Accent (Tweakable) */
  --accent:   #fda500;
  --accent-d: #e09400;

  /* Text */
  --text:  #211d3a;
  --soft:  #57546b;
  --mute:  #6f6f7e;  /* near Quartz */
  --on-navy:      #f4f1ea;
  --on-navy-soft: #b8b4cc;
  --on-navy-mute: #807d9b;

  /* Lines */
  --line:   rgba(19,15,59,0.13);
  --line-2: rgba(19,15,59,0.22);
  --line-d: rgba(255,255,255,0.16);

  /* Fonts */
  --font-serif: "Vollkorn", Georgia, "Times New Roman", serif;
  --font-sans:  "Public Sans", system-ui, sans-serif;
  --font-num:   "Source Sans 3", var(--font-sans);
  --font-display: var(--font-serif);

  /* Scale */
  --scale: 1;
  --fs-display: clamp(2.6rem, calc(1.2rem + 4.4vw), 5.2rem);
  --fs-h1: clamp(2.1rem, calc(1.3rem + 2.6vw), 3.7rem);
  --fs-h2: clamp(1.8rem, calc(1.2rem + 1.9vw), 2.9rem);
  --fs-h3: clamp(1.25rem, calc(1rem + 0.85vw), 1.7rem);
  --fs-lead: clamp(1.1rem, calc(1rem + 0.5vw), 1.45rem);
  --fs-body: 1.0625rem;
  --fs-small: 0.875rem;
  --fs-eyebrow: 0.76rem;

  --section-y: clamp(36px, 4vw, 64px);
  --gutter: clamp(20px, 5vw, 76px);
  --maxw: 1300px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: calc(var(--fs-body) * var(--scale));
  line-height: 1.62;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; padding: 0; }

/* ---------- Type ---------- */
.serif { font-family: var(--font-serif); }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--navy);
  text-wrap: balance;
}
[data-head="bold"] {
  --font-display: "Bebas Neue", "Public Sans", sans-serif;
}
[data-head="bold"] h1, [data-head="bold"] h2, [data-head="bold"] h3, [data-head="bold"] h4 {
  font-weight: 400; font-style: normal; letter-spacing: 0.01em; line-height: 0.9; text-transform: uppercase;
}
.eyebrow {
  font-family: var(--font-sans);
  font-size: calc(var(--fs-eyebrow) * var(--scale));
  font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent);
  display: inline-flex; align-items: center; gap: 12px;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--accent); }
.lead {
  font-size: calc(var(--fs-lead) * var(--scale));
  line-height: 1.5; color: var(--soft); font-weight: 400; text-wrap: pretty;
}

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--section-y); }
.section-head { max-width: 720px; margin-bottom: clamp(38px, 4.5vw, 64px); }
.section-head .eyebrow { margin-bottom: 20px; }
.section-head h2 { font-size: calc(var(--fs-h2) * var(--scale)); }
.section-head p { margin-top: 18px; font-size: calc(var(--fs-lead) * var(--scale)); color: var(--soft); line-height: 1.5; }
.rule-top { border-top: 1px solid var(--line-2); }

.navy-bg { background: var(--navy); color: var(--on-navy); }
.navy-bg h1, .navy-bg h2, .navy-bg h3 { color: #fff; }
.navy-bg .section-head p { color: var(--on-navy-soft); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.55em;
  font-family: var(--font-sans);
  padding: 0.85em 1.5em; font-weight: 600; font-size: calc(0.96rem * var(--scale));
  border-radius: 2px; transition: background 0.22s, color 0.22s, transform 0.22s var(--ease), box-shadow 0.22s;
}
.btn .arrow { transition: transform 0.25s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-d); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-2); }
.btn-outline { border: 1.5px solid var(--navy); color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-ghost-light { border: 1.5px solid var(--line-d); color: #fff; }
.btn-ghost-light:hover { background: rgba(255,255,255,0.08); }
.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-sans); font-weight: 700; font-size: 0.95rem;
  color: var(--navy); padding-bottom: 3px; border-bottom: 2px solid var(--accent);
  transition: gap 0.2s;
}
.link-arrow:hover { gap: 13px; }
.link-arrow .arrow { transition: transform 0.25s var(--ease); }
.link-arrow:hover .arrow { transform: translateX(3px); }

/* ============================================================
   UTILITY BAR + HEADER
   ============================================================ */
.utility {
  background: var(--paper-2); color: var(--soft);
  font-size: 0.8rem; font-weight: 500;
  border-bottom: 1px solid var(--line);
}
.utility-inner { display: flex; justify-content: flex-end; align-items: center; gap: 22px; height: 40px; }
.utility a { transition: color 0.2s; }
.utility a:hover { color: var(--navy); }
.utility .sep { width: 1px; height: 14px; background: var(--line-2); }

.header {
  position: sticky; top: 0; z-index: 100;
  background: var(--paper-2);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s;
}
.header.scrolled { box-shadow: 0 8px 28px -18px rgba(19,15,59,0.35); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 86px; }
.brand-logo { height: 56px; width: auto; }

.nav { display: flex; align-items: center; gap: 2px; }
.nav-item { position: relative; }
.nav-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 12px 15px; font-family: var(--font-sans);
  font-size: 0.97rem; font-weight: 600; color: var(--navy);
  position: relative;
}
.nav-link:hover { color: var(--accent-d); }
.nav-link::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 6px; height: 2px;
  background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform 0.25s var(--ease);
}
.nav-link:hover::after { transform: scaleX(1); }
.nav-link .chev { width: 9px; height: 9px; opacity: 0.6; transition: transform 0.25s; }
.nav-item:hover .chev { transform: rotate(180deg); }

.dropdown {
  position: absolute; top: calc(100% + 1px); left: 0; min-width: 256px;
  background: var(--paper-2); border: 1px solid var(--line);
  box-shadow: 0 26px 50px -24px rgba(19,15,59,0.4);
  padding: 8px; opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
}
.nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a { display: block; padding: 11px 14px; font-family: var(--font-sans); font-size: 0.93rem; font-weight: 600; color: var(--navy); transition: background 0.18s, padding-left 0.18s; }
.dropdown a:hover { background: var(--cream); padding-left: 19px; }
.dropdown a span { display: block; font-size: 0.78rem; font-weight: 500; color: var(--mute); margin-top: 2px; }

.header-cta { display: flex; align-items: center; gap: 12px; }
.icon-btn { width: 42px; height: 42px; display: grid; place-items: center; color: var(--navy); border: 1px solid var(--line); border-radius: 2px; transition: background 0.2s; }
.icon-btn:hover { background: var(--cream); }

.menu-toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; color: var(--navy); }
.menu-toggle span { position: relative; width: 22px; height: 2px; background: currentColor; transition: 0.3s; }
.menu-toggle span::before, .menu-toggle span::after { content: ""; position: absolute; left: 0; width: 22px; height: 2px; background: currentColor; transition: 0.3s; }
.menu-toggle span::before { top: -7px; }
.menu-toggle span::after { top: 7px; }
body.menu-open .menu-toggle span { background: transparent; }
body.menu-open .menu-toggle span::before { top: 0; transform: rotate(45deg); }
body.menu-open .menu-toggle span::after { top: 0; transform: rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero { position: relative; background: var(--navy); color: #fff; }
.hero-media { position: relative; min-height: min(78vh, 760px); display: flex; align-items: flex-start; overflow: hidden; }
.hero-media image-slot, .hero-media .ph { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; }
.hero-video { position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; background: var(--navy); }
.hero-video iframe { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 100vw; height: 56.25vw; min-height: 100%; min-width: 177.78vh; border: 0; }
.hero-video video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; border: 0; }
.hero-media::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(90deg, rgba(11,8,38,0.82) 0%, rgba(11,8,38,0.5) 44%, rgba(11,8,38,0.1) 78%, rgba(11,8,38,0.3) 100%),
    linear-gradient(180deg, rgba(11,8,38,0.85) 0%, rgba(11,8,38,0.1) 52%, rgba(11,8,38,0) 70%);
}
.hero-content { position: relative; z-index: 2; padding-block: clamp(48px, 7vw, 96px); max-width: 900px; }
.hero-content .eyebrow { color: var(--amber); }
.hero-content .eyebrow::before { background: var(--accent); }
.hero h1 { color: #fff; font-size: var(--fs-display); margin-top: 24px; max-width: 18ch; font-weight: 600; }
[data-head="serif"] .hero h1 em { font-style: italic; color: var(--amber); }
[data-head="bold"] .hero h1 em { font-style: italic; -webkit-text-fill-color: var(--amber); }
.hero .lead { color: rgba(244,241,234,0.9); max-width: 54ch; margin-top: 26px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

/* Pillars — infinite marquee */
.pillars { background: var(--paper-2); border-block: 1px solid var(--line); overflow: hidden; }
.marquee {
  position: relative; padding-block: 24px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track { display: flex; align-items: center; width: max-content; animation: pillScroll 42s linear infinite; will-change: transform; }
@keyframes pillScroll { from { transform: translateX(-50%); } to { transform: translateX(0); } }
.marquee:hover .marquee-track { animation-play-state: paused; }
.mq-item { display: inline-flex; align-items: baseline; gap: 14px; padding: 6px 32px; white-space: nowrap; }
.mq-title { font-family: var(--font-serif); font-weight: 600; font-size: 1.5rem; color: var(--navy); transition: color 0.25s var(--ease); }
.mq-sub { font-family: var(--font-sans); font-size: 0.82rem; font-weight: 500; color: var(--mute); letter-spacing: 0.02em; }
.mq-item:hover .mq-title { color: var(--accent); }
.mq-dot { width: 58px; height: 11px; flex: none; background: url('assets/four-symbol.png') center / contain no-repeat; }
@media (prefers-reduced-motion: reduce) { .marquee-track { animation: none; } }
@media (max-width: 480px) {
  .mq-item { padding: 4px 24px; gap: 10px; }
  .mq-title { font-size: 1.22rem; }
  .mq-sub { display: none; }
}

/* ============================================================
   IMPACT
   ============================================================ */
.impact { background: #130f3b; color: var(--on-navy); }
.impact .section-head h2 { color: #fff; }
.impact .section-head p { color: var(--on-navy-soft); }
.impact-grid { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 2px solid rgba(255,255,255,0.22); }
.stat { padding: 36px 26px 0 0; }
.stat .n { font-family: var(--font-display); font-weight: 600; font-size: clamp(2.7rem, calc(1.4rem + 4vw), 4.6rem); line-height: 0.95; color: #fff; letter-spacing: -0.02em; }
.stat .n .suf { color: var(--accent); }
.stat .l { font-family: var(--font-sans); margin-top: 14px; font-size: 0.96rem; font-weight: 600; color: var(--on-navy-soft); line-height: 1.3; max-width: 18ch; }

/* ============================================================
   PROGRAMS
   ============================================================ */
.programs { background: var(--paper-2); }
.feature { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(28px, 4vw, 70px); align-items: center; margin-bottom: clamp(36px, 4vw, 60px); }
.feature-media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; }
.feature-media image-slot, .feature-media .ph { position: absolute; inset: 0; width: 100%; height: 100%; }
.feature-tag, .pc-tag { font-family: var(--font-sans); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); }
.feature h3 { font-size: calc(var(--fs-h1) * 0.82 * var(--scale)); margin-top: 14px; }
.feature p { margin-top: 16px; color: var(--soft); font-size: 1.08rem; line-height: 1.55; max-width: 46ch; }
.feature .link-arrow { margin-top: 24px; }

.prog-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(20px, 2.5vw, 34px); }
.prog-card { display: flex; flex-direction: column; }
.prog-media { position: relative; aspect-ratio: 3 / 2; overflow: hidden; margin-bottom: 20px; }
.prog-media image-slot, .prog-media .ph { position: absolute; inset: 0; width: 100%; height: 100%; }
.prog-card h3 { font-size: calc(var(--fs-h3) * var(--scale)); margin-top: 10px; }
.prog-card p { margin-top: 10px; color: var(--soft); font-size: 0.98rem; line-height: 1.5; }
.prog-card .link-arrow { margin-top: 16px; align-self: flex-start; }

/* ============================================================
   STORIES (news editorial)
   ============================================================ */
.stories { background: #fff; }
.stories-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: clamp(30px, 4vw, 64px); }
.story-feature { display: flex; flex-direction: column; }
.story-feature .sf-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; margin-bottom: 22px; }
.story-feature .sf-media image-slot, .story-feature .sf-media .ph { position: absolute; inset: 0; width: 100%; height: 100%; }
.story-feature .play, .story-row .play { position: absolute; top: 18px; left: 18px; width: 46px; height: 46px; border-radius: 999px; background: var(--accent); color: #fff; display: grid; place-items: center; z-index: 2; transition: transform 0.25s; }
.story-feature:hover .play, .story-row:hover .play { transform: scale(1.1); }
.st-cat { font-family: var(--font-sans); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); }
.story-feature h3 { font-size: calc(var(--fs-h2) * 0.78 * var(--scale)); margin-top: 12px; }
.story-feature p { margin-top: 12px; color: var(--soft); font-size: 1rem; line-height: 1.5; max-width: 52ch; }

.story-list { display: flex; flex-direction: column; }
.story-row { display: grid; grid-template-columns: 132px 1fr; gap: 20px; padding: 24px 0; border-top: 1px solid var(--line-2); align-items: center; cursor: pointer; }
.story-row:first-child { border-top: none; padding-top: 0; }
.story-row:last-child { padding-bottom: 0; }
.story-row .sr-media { position: relative; aspect-ratio: 1; overflow: hidden; }
.story-row .sr-media image-slot, .story-row .sr-media .ph { position: absolute; inset: 0; width: 100%; height: 100%; }
.story-row h3 { font-size: 1.28rem; margin-top: 7px; transition: color 0.2s; }
.story-row:hover h3 { color: var(--accent); }

/* ============================================================
   PARTNERS
   ============================================================ */
.partners { background: var(--paper-2); }
.partner-grid { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.partner { display: grid; place-items: center; padding: 30px 26px; min-height: 132px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background 0.3s; }
.partner img { max-width: 100%; width: auto; height: auto; max-height: 52px; object-fit: contain; filter: none; opacity: 1; transition: opacity 0.5s ease, transform 0.5s ease; }
.partner:hover { background: #fff; }
.partner:hover img { transform: scale(1.05); }
.partner img.flash-out { opacity: 0 !important; transform: scale(0.96) !important; }

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline { background: var(--navy); color: var(--on-navy); }
.tl-track { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 22px; margin-top: 26px; }
.tl-track::before { content: ""; position: absolute; left: 0; right: 0; top: 13px; height: 1px; background: var(--line-d); }
.tl-prog { position: absolute; left: 0; top: 12px; height: 3px; background: var(--accent); width: 0; transition: width 1.5s var(--ease); }
.tl-node { position: relative; padding-top: 40px; }
.tl-dot { position: absolute; top: 7px; left: 0; width: 13px; height: 13px; border-radius: 999px; background: var(--accent); box-shadow: 0 0 0 4px var(--navy); }
.tl-year { font-family: var(--font-serif); font-weight: 600; font-size: 2rem; color: var(--amber); }
.tl-node p { font-family: var(--font-sans); margin-top: 8px; color: var(--on-navy-soft); font-size: 0.97rem; line-height: 1.45; max-width: 22ch; }

/* ============================================================
   CTA
   ============================================================ */
.cta { position: relative; overflow: hidden; text-align: center; color: #fff; padding-block: clamp(90px, 12vw, 168px); isolation: isolate; }
.cta-bg { position: absolute; inset: 0; z-index: -1; }
.cta-photo { position: absolute; inset: 0; width: 100%; height: 100%; }
.cta-bg .cta-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(19,15,59,0.82), rgba(16,28,82,0.78) 55%, rgba(19,15,59,0.9)); }
/* fallback tint if no photo yet */
.cta { background: var(--navy); }

/* efeitos discretos */
.cta-fx { position: absolute; inset: 0; overflow: hidden; }
.cta-particle { position: absolute; width: 4px; height: 4px; border-radius: 50%; background: rgba(252,168,76,0.55); box-shadow: 0 0 8px 1px rgba(252,168,76,0.35); opacity: 0; animation: ctaFloat linear infinite; }
.cta-particle:nth-child(1){ left: 8%;  bottom: -10px; animation-duration: 17s; animation-delay: 0s; }
.cta-particle:nth-child(2){ left: 22%; bottom: -10px; animation-duration: 22s; animation-delay: 3s; width: 3px; height: 3px; }
.cta-particle:nth-child(3){ left: 38%; bottom: -10px; animation-duration: 26s; animation-delay: 6s; }
.cta-particle:nth-child(4){ left: 54%; bottom: -10px; animation-duration: 19s; animation-delay: 1.5s; width: 3px; height: 3px; background: rgba(255,255,255,0.5); box-shadow: 0 0 8px 1px rgba(255,255,255,0.3); }
.cta-particle:nth-child(5){ left: 66%; bottom: -10px; animation-duration: 24s; animation-delay: 8s; }
.cta-particle:nth-child(6){ left: 78%; bottom: -10px; animation-duration: 20s; animation-delay: 4s; width: 3px; height: 3px; }
.cta-particle:nth-child(7){ left: 88%; bottom: -10px; animation-duration: 28s; animation-delay: 10s; background: rgba(255,255,255,0.45); box-shadow: 0 0 8px 1px rgba(255,255,255,0.28); }
.cta-particle:nth-child(8){ left: 46%; bottom: -10px; animation-duration: 23s; animation-delay: 12s; }
@keyframes ctaFloat { 0% { transform: translateY(0) translateX(0); opacity: 0; } 12% { opacity: 1; } 88% { opacity: 1; } 100% { transform: translateY(-88vh) translateX(24px); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .cta-particle { animation: none; opacity: 0; } }

.cta-inner { position: relative; z-index: 1; }
.cta .eyebrow { color: var(--amber); justify-content: center; }
.cta .eyebrow::before { display: none; }
.cta h2 { color: #fff; font-size: calc(var(--fs-h1) * var(--scale)); max-width: 18ch; margin: 22px auto 0; font-weight: 600; }
.cta p { margin: 20px auto 0; max-width: 56ch; color: rgba(244,241,234,0.9); font-size: calc(var(--fs-lead) * var(--scale)); }

.cta-stats { display: grid; grid-template-columns: repeat(3, auto); justify-content: center; gap: clamp(28px, 5vw, 72px); margin: clamp(40px, 5vw, 60px) auto 0; }
.cta-stat { display: flex; flex-direction: column; gap: 6px; }
.cta-stat .n { font-family: var(--font-display); font-weight: 600; font-size: clamp(2.1rem, calc(1.4rem + 2vw), 3.1rem); line-height: 0.95; color: #fff; letter-spacing: -0.02em; }
.cta-stat .n .suf { color: var(--amber); }
.cta-stat .l { font-family: var(--font-sans); font-size: 0.82rem; font-weight: 600; letter-spacing: 0.04em; color: var(--on-navy-soft); text-transform: uppercase; }

.cta-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; margin-top: clamp(40px, 5vw, 56px); }
.cta-actions .btn { padding: 0.95em 1.7em; transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s, color 0.25s; }
.cta-actions .btn:hover { transform: translateY(-2px) scale(1.03); box-shadow: 0 14px 34px -12px rgba(0,0,0,0.5); }
.cta-actions .btn-primary { background: var(--accent); color: #130f3b; }
.cta-actions .btn-primary:hover { background: var(--amber); }

.cta-tagline { margin: clamp(46px, 6vw, 70px) auto 0; font-family: var(--font-serif); font-style: italic; font-size: calc(1.02rem * var(--scale)); color: rgba(244,241,234,0.6); max-width: none; letter-spacing: 0.01em; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: var(--ink); color: var(--on-navy-soft); padding-block: clamp(56px, 6vw, 82px) 34px; }
.footer-top { display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: 42px 24px; }
.footer .brand-logo { height: 52px; margin-bottom: 20px; }
.footer-blurb { max-width: 34ch; font-size: 0.94rem; line-height: 1.55; }
.footer-social { display: flex; gap: 10px; margin-top: 22px; }
.footer-social a { width: 40px; height: 40px; border: 1px solid var(--line-d); display: grid; place-items: center; transition: background 0.25s, border-color 0.25s; }
.footer-social a:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.footer-col h4 { font-family: var(--font-sans); font-size: 0.76rem; letter-spacing: 0.16em; text-transform: uppercase; color: #fff; font-weight: 700; margin-bottom: 16px; }
.footer-col a { display: block; padding: 6px 0; font-family: var(--font-sans); font-size: 0.93rem; color: var(--on-navy-soft); transition: color 0.2s, padding-left 0.2s; }
.footer-col a:hover { color: #fff; padding-left: 5px; }
.footer-bottom { display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; margin-top: clamp(44px, 5vw, 62px); padding-top: 26px; border-top: 1px solid var(--line-d); font-size: 0.84rem; }

/* ---------- Placeholder ---------- */
.ph { background: repeating-linear-gradient(45deg, rgba(19,15,59,0.05) 0 12px, rgba(19,15,59,0.025) 12px 24px), var(--cream-2); }

/* ---------- Reveal ---------- */
@media (prefers-reduced-motion: no-preference) {
  [data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
  [data-reveal].in { opacity: 1; transform: none; }
  [data-reveal][data-delay="1"] { transition-delay: 0.08s; }
  [data-reveal][data-delay="2"] { transition-delay: 0.16s; }
  [data-reveal][data-delay="3"] { transition-delay: 0.24s; }
  [data-reveal][data-delay="4"] { transition-delay: 0.32s; }
}

/* ---------- Staggered heading reveal (eyebrow → título → subtítulo) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .section-head[data-reveal] { opacity: 1; transform: none; }
  .section-head > .eyebrow,
  .section-head > h2,
  .section-head > p {
    opacity: 0; transform: translateY(18px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  }
  .section-head.in > .eyebrow { opacity: 1; transform: none; transition-delay: 0.05s; }
  .section-head.in > h2      { opacity: 1; transform: none; transition-delay: 0.20s; }
  .section-head.in > p       { opacity: 1; transform: none; transition-delay: 0.38s; }

  .mission-grid > [data-reveal] { opacity: 1; transform: none; }
  .mission-grid > [data-reveal] > .eyebrow,
  .mission-grid > [data-reveal] > .mission-statement,
  .mission-grid > [data-reveal] > .mission-desc {
    opacity: 0; transform: translateY(18px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  }
  .mission-grid > [data-reveal].in > .eyebrow          { opacity: 1; transform: none; transition-delay: 0.05s; }
  .mission-grid > [data-reveal].in > .mission-statement { opacity: 1; transform: none; transition-delay: 0.20s; }
  .mission-grid > [data-reveal].in > .mission-desc      { opacity: 1; transform: none; transition-delay: 0.38s; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .nav { display: none; }
  .menu-toggle { display: flex; }
  .feature { grid-template-columns: 1fr; }
  .feature-media { aspect-ratio: 16/9; }
  .prog-grid { grid-template-columns: 1fr 1fr; }
  .stories-grid { grid-template-columns: 1fr; }
  .nav.open {
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    position: fixed; top: 86px; left: 0; right: 0; bottom: 0; z-index: 99;
    background: var(--paper-2); padding: 16px var(--gutter); overflow-y: auto;
  }
  .nav.open .nav-link { font-size: 1.1rem; padding: 15px 0; border-bottom: 1px solid var(--line); color: var(--navy); }
  .nav.open .nav-link::after { display: none; }
  .nav.open .nav-link .chev { display: none; }
  .nav.open .dropdown { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; padding: 2px 0 12px 12px; }
}
@media (max-width: 760px) {
  .impact-grid { grid-template-columns: 1fr 1fr; gap: 0 24px; }
  .stat { padding-bottom: 28px; border-bottom: 1px solid var(--line); }
  .pillars-grid { grid-template-columns: 1fr; }
  .pillar { border-right: none; border-bottom: 1px solid var(--line); padding: 22px 0 !important; }
  .partner-grid { grid-template-columns: repeat(3, 1fr); }
  .prog-grid { grid-template-columns: 1fr; }
  .story-row { grid-template-columns: 100px 1fr; }
  .tl-track { grid-template-columns: 1fr; gap: 0; }
  .tl-track::before, .tl-prog { display: none; }
  .tl-node { padding-left: 26px; padding-top: 0; padding-bottom: 28px; border-left: 1px solid var(--line-d); }
  .tl-dot { left: -7px; top: 4px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .impact-grid { grid-template-columns: 1fr; }
  .partner-grid { grid-template-columns: 1fr 1fr; }
  .utility-inner { justify-content: center; gap: 14px; font-size: 0.74rem; }
}

/* ============================================================
   MISSION (editorial statement)
   ============================================================ */
.mission { background: var(--paper-2); padding-block: clamp(24px, 3vw, 44px); }
.mission-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(36px, 6vw, 96px); align-items: start; }
.mission .eyebrow { margin-bottom: 22px; }
.mission-statement { font-family: var(--font-display); font-weight: 600; font-size: calc(var(--fs-h2) * var(--scale)); line-height: 1.12; letter-spacing: -0.01em; color: var(--navy); text-wrap: balance; }
.mission-statement em { font-style: italic; color: var(--accent); }
[data-head="bold"] .mission-statement em { -webkit-text-fill-color: var(--accent); }
.mission-aside { padding-top: 8px; }
.mission-aside p { color: var(--soft); font-size: 1.08rem; line-height: 1.62; }
.mission-desc { margin-top: 22px; color: var(--soft); font-size: calc(var(--fs-lead) * var(--scale)); line-height: 1.55; max-width: 40ch; }
.mission-aside p + p { margin-top: 18px; }
.mission-aside .link-arrow { margin-top: 26px; }

/* ============================================================
   IMPACT LEDGER (per-program)
   ============================================================ */
.impact-ledger { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,0.18); margin-top: clamp(48px, 6vw, 78px); }
.ledger-col { padding: 30px 28px; border-right: 1px solid rgba(255,255,255,0.18); }
.ledger-col:nth-child(4n+1) { padding-left: 0; }
.ledger-col:nth-child(4n) { padding-right: 0; border-right: none; }
.ledger-col:nth-child(n+5) { border-top: 1px solid rgba(255,255,255,0.18); }
.ledger-col .lc-name { font-family: var(--font-sans); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); }
.ledger-col ul { margin-top: 16px; display: flex; flex-direction: column; gap: 13px; }
.ledger-col li { display: flex; flex-direction: column; gap: 7px; }
.ledger-col li b { font-family: var(--font-display); font-weight: 600; font-size: 1.7rem; color: #fff; line-height: 1; }
.ledger-col li span { font-family: var(--font-sans); font-size: 0.93rem; color: var(--on-navy-soft); line-height: 1.35; }
.ledger-col li.tw-item { transition: opacity .42s ease; }
.ledger-col li.tw-out { opacity: 0; }

/* Logo marquee (programas) */
.logo-marquee {
  margin-top: clamp(44px, 5.5vw, 70px);
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.logo-track { display: flex; align-items: center; width: max-content; animation: logoScroll 55s linear infinite; }
.logo-marquee:hover .logo-track { animation-play-state: paused; }
@keyframes logoScroll { from { transform: translateX(-50%); } to { transform: translateX(0); } }
.logo-cell {
  flex: none; margin-right: 30px;
  display: grid; place-items: center;
}
.logo-cell img { height: 62px; width: auto; display: block; }
.logo-cell img[src*="logo-summit"] { height: 78px; }
.logo-cell img[src*="logo-alcance"] { height: 86px; }
.logo-cell img[src*="logo-comunidade"] { height: 118px; }
@media (prefers-reduced-motion: reduce) { .logo-track { animation: none; } }
@media (max-width: 600px) {
  .logo-cell { margin-right: 18px; }
  .logo-cell img { height: 48px; }
  .logo-cell img[src*="logo-summit"] { height: 60px; }
  .logo-cell img[src*="logo-alcance"] { height: 66px; }
  .logo-cell img[src*="logo-comunidade"] { height: 92px; }
}

/* ============================================================
   FEATURE (reversed variant)
   ============================================================ */
.feature.reverse .feature-media { order: 2; }
.feature.reverse .feature-text { order: 1; }

/* ============================================================
   FOUR SUMMIT
   ============================================================ */
.summit { background: var(--ink); color: var(--on-navy); position: relative; overflow: hidden; }
.summit .section-head h2 { color: #fff; font-size: calc(var(--fs-display) * 0.78 * var(--scale)); }
.summit .section-head .eyebrow { color: var(--amber); }
.summit .section-head p { color: var(--on-navy-soft); max-width: 50ch; }
.summit-media { position: relative; aspect-ratio: 21 / 9; overflow: hidden; margin-bottom: clamp(34px, 4vw, 56px); border: 1px solid var(--line-d); }
.summit-media image-slot, .summit-media .ph { position: absolute; inset: 0; width: 100%; height: 100%; }
.summit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(34px, 5vw, 72px); align-items: start; }
/* Layout: stats à esquerda, carrossel à direita */
.summit-layout { display: grid; grid-template-columns: minmax(180px, 0.62fr) 1.7fr; gap: clamp(36px, 5vw, 80px); align-items: stretch; }

/* Stats verticais */
.summit-stats-v { display: flex; flex-direction: column; justify-content: space-between; border-top: 1px solid var(--line-d); }
.summit-stats-v .ssv { display: flex; flex-direction: column; gap: 2px; padding: 14px 0; border-bottom: 1px solid var(--line-d); position: relative; transition: padding-left .35s ease; flex: 1; justify-content: center; }
.summit-stats-v .ssv::before { content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 0; height: 20px; background: var(--amber); transition: width .35s ease; }
.summit-stats-v .ssv:hover { padding-left: 14px; }
.summit-stats-v .ssv:hover::before { width: 3px; }
.summit-stats-v .ssv .n { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.5rem, calc(1.1rem + 0.9vw), 2.05rem); line-height: 0.95; color: #fff; letter-spacing: -0.02em; }
.summit-stats-v .ssv .n .suf { color: var(--amber); padding-left: 3px; }
.summit-stats-v .ssv .l { font-family: var(--font-sans); font-size: 0.78rem; font-weight: 600; color: var(--on-navy-soft); line-height: 1.25; }

/* Carrossel */
.summit-carousel { min-width: 0; }
.sc-head { margin-bottom: 22px; }
.sc-head .sp-sub { font-family: var(--font-sans); font-size: 0.82rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--amber); margin-bottom: 8px; }
.sc-head h3 { color: #fff; font-size: calc(var(--fs-h3) * var(--scale)); }
.sc-viewport { overflow: hidden; background: #0c0a26; }
.sc-track { display: flex; transition: transform .7s cubic-bezier(.16,.84,.3,1); }
.sc-slide { flex: 0 0 100%; display: grid; grid-template-columns: 1fr 1fr; min-width: 0; }
.sc-photo { position: relative; aspect-ratio: 1 / 1; overflow: hidden; background: #0c0a26; }
.sc-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center 20%; display: block; }
.sc-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 60%, rgba(12,10,38,0.55)); }
.sc-info { padding: clamp(24px, 3vw, 44px); display: flex; flex-direction: column; justify-content: center; gap: 12px; }
.sc-info .sc-name { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.4rem, calc(1rem + 1.2vw), 2.05rem); line-height: 1.08; color: #fff; }
.sc-info .sc-role { font-family: var(--font-sans); font-size: 0.9rem; font-weight: 700; letter-spacing: 0.02em; color: var(--amber); }
.sc-info .sc-cap { font-family: var(--font-serif, Georgia, serif); font-size: clamp(0.96rem, calc(0.8rem + 0.4vw), 1.2rem); line-height: 1.5; color: var(--on-navy-soft); margin-top: 4px; }
/* fade-in of active slide content */
.sc-slide .sc-info > * { opacity: 0; transform: translateY(10px); transition: opacity .6s ease, transform .6s ease; }
.sc-slide.is-active .sc-info > * { opacity: 1; transform: none; }
.sc-slide.is-active .sc-info > *:nth-child(2) { transition-delay: .08s; }
.sc-slide.is-active .sc-info > *:nth-child(3) { transition-delay: .16s; }

.sc-controls { display: flex; align-items: center; gap: 18px; margin-top: 24px; }
.sc-arrow { width: 50px; height: 50px; border: 1px solid var(--line-d); border-radius: 50%; display: grid; place-items: center; color: #fff; background: transparent; transition: background .3s ease, border-color .3s ease, color .3s ease, transform .3s ease; flex: none; }
.sc-arrow:hover { background: var(--amber); border-color: var(--amber); color: #130f3b; transform: translateY(-2px); }
.sc-dots { display: flex; gap: 9px; flex-wrap: wrap; flex: 1; }
.sc-dot { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,0.22); border: none; padding: 0; cursor: pointer; transition: background .3s ease, transform .3s ease; }
.sc-dot:hover { background: rgba(255,255,255,0.5); }
.sc-dot.is-active { background: var(--amber); transform: scale(1.25); }
@media (prefers-reduced-motion: reduce) { .sc-track { transition: none; } }
.summit-cta { margin-top: clamp(34px, 4vw, 52px); }

/* ============================================================
   PARA EMPRESAS / FOUR IN COMPANY
   ============================================================ */
.biz { background: #fff; padding-block: clamp(16px, 2vw, 30px); }
.biz-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(36px, 5vw, 80px); align-items: start; }
.biz-intro { align-self: start; }
.biz-intro .eyebrow { margin-bottom: 20px; }
.biz-intro h2 { font-size: calc(var(--fs-h2) * var(--scale)); }
.biz-intro p { margin-top: 18px; color: var(--soft); font-size: 1.08rem; line-height: 1.6; max-width: 44ch; }
.biz-intro .btn { margin-top: 30px; }

/* Mosaico de logos — 5 quadros com flashes independentes */
.logo-mosaic { display: grid; grid-template-columns: repeat(5, 1fr); gap: clamp(8px, 1vw, 16px); width: 100%; align-items: center; }
.lm-slot { position: relative; height: 92px; display: grid; place-items: center; }
.lm-slot img { max-width: 100%; max-height: 64px; width: auto; height: auto; object-fit: contain; opacity: 0; transform: scale(0.94); transition: opacity .55s ease, transform .55s ease; }
.lm-slot img.is-on { opacity: 1; transform: scale(1); }
@media (prefers-reduced-motion: reduce) { .lm-slot img { transition: opacity .3s ease; } .lm-slot img.is-on { transform: none; } }
@media (max-width: 700px) { .lm-slot { height: 70px; } .lm-slot img { max-height: 48px; } }

/* Logo Four Leadership Training */
.flt-logo { display: grid; place-items: center; width: 100%; }
.flt-logo img { max-width: 100%; width: 100%; max-width: 480px; height: auto; object-fit: contain; }
.biz-clients-box { display: flex; flex-direction: column; gap: clamp(18px, 2vw, 28px); background: transparent; border: none; }
.cl-head { font-family: var(--font-sans); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--mute); min-height: 1.2em; }
.logo-flash { position: relative; width: 100%; height: 200px; display: grid; place-items: center; }
.lf-logo { grid-area: 1 / 1; width: 300px; height: 128px; object-fit: contain; opacity: 0; transform: scale(0.94); transition: opacity .6s ease, transform .6s ease; pointer-events: none; }
.lf-logo.is-active { opacity: 1; transform: scale(1); }
@media (prefers-reduced-motion: reduce) { .lf-logo { transition: opacity .3s ease; } .lf-logo.is-active { transform: none; } }
@media (prefers-reduced-motion: reduce) { .lm-track { animation: none; } }

/* ============================================================
   INVEST / DOADORES E PARCEIROS
   ============================================================ */
.invest { background: var(--navy-2); color: var(--on-navy); }
.invest-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(34px, 5vw, 80px); align-items: center; }
.invest .eyebrow { color: var(--amber); margin-bottom: 20px; }
.invest h2 { color: #fff; font-size: calc(var(--fs-h2) * var(--scale)); }
.invest .invest-body p { color: var(--on-navy-soft); font-size: 1.1rem; line-height: 1.6; }
.invest-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 8px; }
.invest-points { display: flex; flex-direction: column; gap: 0; }
.invest-points li { padding: 20px 0; border-top: 1px solid var(--line-d); display: flex; gap: 18px; align-items: baseline; }
.invest-points li:first-child { border-top: none; }
.invest-points .ip-k { font-family: var(--font-display); font-weight: 600; font-size: 1.7rem; color: var(--amber); line-height: 1; flex: none; min-width: 4ch; }
.invest-points .ip-t { font-family: var(--font-sans); font-size: 0.98rem; color: var(--on-navy-soft); line-height: 1.4; }

/* ============================================================
   JANTAR INSTITUCIONAL
   ============================================================ */
.dinner { background: var(--paper-2); }
.dinner .feature { margin-bottom: 0; grid-template-columns: 1.5fr 1fr; align-items: stretch; }
.dinner .feature-media { aspect-ratio: auto; height: 100%; min-height: 320px; }
.dinner-cta { margin-top: 28px; }
.dinner-meta { display: flex; flex-wrap: wrap; gap: 28px 40px; margin-top: 26px; padding-top: 24px; border-top: 1px solid var(--line); }
.dinner-meta .dm { }
.dinner-meta .dm-k { font-family: var(--font-display); font-weight: 600; font-size: 1.5rem; color: var(--navy); line-height: 1; }
.dinner-meta .dm-t { font-family: var(--font-sans); font-size: 0.84rem; font-weight: 600; color: var(--mute); margin-top: 6px; letter-spacing: 0.02em; }
@media (max-width: 1024px) {
  .mission-grid { grid-template-columns: 1fr; gap: 32px; }
  .impact-ledger { grid-template-columns: 1fr 1fr; }
  .ledger-col { padding: 26px 22px 26px 0 !important; border-bottom: 1px solid rgba(255,255,255,0.18); }
  .ledger-col:nth-child(odd) { padding-left: 0 !important; }
  .ledger-col:nth-child(even) { padding-left: 22px !important; border-right: none; }
  .summit-layout { grid-template-columns: 1fr; gap: 40px; }
  .summit-stats-v { display: grid; grid-template-columns: 1fr 1fr 1fr; border-left: 1px solid var(--line-d); }
  .summit-stats-v .ssv { padding: 18px 16px; border-right: 1px solid var(--line-d); }
  .summit-stats-v .ssv:hover { padding-left: 16px; }
  .summit-stats-v .ssv::before { display: none; }
  .speaker-grid { grid-template-columns: repeat(4, 1fr); }
  .biz-grid { grid-template-columns: 1fr; }
  .invest-grid { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 760px) {
  .impact-ledger { grid-template-columns: 1fr; }
  .ledger-col { padding-left: 0 !important; padding-right: 0 !important; }
  .summit-stats-v { grid-template-columns: 1fr 1fr; }
  .sc-slide { grid-template-columns: 1fr; }
  .sc-photo::after { background: linear-gradient(180deg, transparent 60%, rgba(12,10,38,0.55)); }
  .speaker-grid { grid-template-columns: repeat(3, 1fr); }
  .cta-stats { grid-template-columns: 1fr 1fr; gap: 32px 40px; }
  .cta-actions { flex-direction: column; align-items: stretch; }
  .cta-actions .btn { justify-content: center; }
}
@media (max-width: 480px) {
  .summit-stats-v { grid-template-columns: 1fr 1fr; }
  .speaker-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   NOSSA HISTÓRIA
   ============================================================ */
.history { background: var(--paper-2); }
.history-grid { display: grid; grid-template-columns: 0.82fr 1fr; gap: clamp(34px, 5vw, 72px); align-items: start; }
.history-media { position: relative; aspect-ratio: 4 / 5; overflow: hidden; }
.history-media image-slot, .history-media .ph { position: absolute; inset: 0; width: 100%; height: 100%; }
.history-prose .lead-prose { font-family: var(--font-serif); font-weight: 500; font-size: calc(var(--fs-lead) * var(--scale)); color: var(--navy); line-height: 1.42; }
.history-prose p { color: var(--soft); font-size: 1.08rem; line-height: 1.7; }
.history-prose p + p { margin-top: 18px; }
@media (max-width: 1024px) {
  .history-grid { grid-template-columns: 1fr; gap: 28px; }
  .history-media { aspect-ratio: 16 / 9; }
}

/* ============================================================
   MISSION — VALORES
   ============================================================ */
.mission-values { margin-top: clamp(24px, 3vw, 38px); padding-top: 0; border-top: none; }
.vlabel { color: var(--accent); font-size: 10px; font-weight: 700; letter-spacing: 2.1px; text-transform: uppercase; }
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(24px, 3vw, 42px); margin-top: 30px; }
.value-item h4 { font-family: var(--font-serif); font-weight: 600; font-size: 1.28rem; color: var(--navy); line-height: 1.15; }
.value-item p { margin-top: 10px; color: var(--soft); font-size: 0.98rem; line-height: 1.55; }
@media (max-width: 980px) { .values-grid { grid-template-columns: 1fr 1fr; gap: 30px 32px; } }
@media (max-width: 540px) { .values-grid { grid-template-columns: 1fr; } }