/* Brazilian Longevity Institute — paleta e tipografia do manual de marca (Antonio + Inter) */
:root {
  --navy: #1e3748;
  --navy-deep: #13242f;
  --navy-ink: #0d1a23;
  --teal: #00657a;
  --teal-deep: #044554;
  --sky: #58c3f1;
  --silver: #c1c7d3;
  --ink: #211f1f;
  --paper: #f4f6f9;
  --white: #ffffff;
  --text: #2a3a46;
  --muted: #5b6b78;
  --line: #dde2ea;
  --grad: linear-gradient(100deg, var(--sky) 0%, #2a93b9 45%, var(--teal) 100%);
  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  --display: "Antonio", "Arial Narrow", sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }
h1, h2, h3 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  margin: 0;
  color: var(--navy);
}

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 22px;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--grad); border-radius: 2px; }
.dark .eyebrow { color: var(--sky); }

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 28px;
  border-radius: 999px;
  font-family: var(--body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease;
  text-align: center;
}
.btn-primary { background: var(--grad); color: var(--white); box-shadow: 0 10px 30px -10px rgba(88, 195, 241, .55); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 36px -12px rgba(88, 195, 241, .7); }
.btn-ghost { color: var(--white); border: 1px solid rgba(255, 255, 255, .28); }
.btn-ghost:hover { background: rgba(255, 255, 255, .08); }
.btn svg { width: 16px; height: 16px; flex: none; }

/* Cabeçalho */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  transition: background-color .3s ease, box-shadow .3s ease, padding .3s ease;
  padding: 22px 0;
}
.site-header.scrolled {
  background: rgba(19, 36, 47, .92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .06);
  padding: 12px 0;
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand img { width: clamp(150px, 18vw, 196px); height: auto; }
.nav { display: flex; align-items: center; gap: 30px; }
.nav a:not(.btn) {
  color: rgba(255, 255, 255, .78);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color .2s;
}
.nav a:not(.btn):hover { color: var(--white); }
.nav .btn { padding: 11px 20px; font-size: 14px; }

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background:
    radial-gradient(ellipse 60% 55% at 85% 30%, rgba(0, 101, 122, .55), transparent 70%),
    radial-gradient(ellipse 45% 40% at 10% 90%, rgba(88, 195, 241, .16), transparent 70%),
    linear-gradient(180deg, var(--navy-ink) 0%, var(--navy-deep) 55%, var(--navy) 100%);
  color: var(--white);
  overflow: hidden;
  padding: 140px 0 120px;
}
.hero-symbol {
  position: absolute;
  right: -6%;
  top: 50%;
  width: min(62vw, 820px);
  transform: translateY(-58%);
  opacity: .10;
  pointer-events: none;
}
.hero-wave {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 120px;
  opacity: .5;
  pointer-events: none;
}
.hero-wave svg { width: 100%; height: 100%; }
.hero .wrap { position: relative; }
.hero h1 {
  color: var(--white);
  font-size: clamp(44px, 6.4vw, 92px);
  font-weight: 600;
  max-width: 15ch;
}
.hero h1 .line2 { display: block; margin-top: .12em; }
.hero-sub {
  max-width: 600px;
  margin: 32px 0 40px;
  font-size: clamp(17px, 1.6vw, 19.5px);
  color: rgba(255, 255, 255, .78);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* Seções */
section { position: relative; }
.section { padding: clamp(80px, 11vw, 140px) 0; }
.section.paper { background: var(--paper); }
.section.dark { background: var(--navy-deep); color: rgba(255, 255, 255, .78); }
.dark h2, .dark h3 { color: var(--white); }
.section h2 { font-size: clamp(36px, 5.2vw, 64px); }
.lead { font-size: clamp(18px, 1.7vw, 21px); line-height: 1.6; color: var(--navy); }
.dark .lead { color: rgba(255, 255, 255, .9); }

.split { display: grid; gap: 40px; }
@media (min-width: 900px) {
  .split { grid-template-columns: 5fr 7fr; gap: 80px; align-items: start; }
  .split .sticky { position: sticky; top: 110px; }
}

/* Manifesto */
.manifesto-body p { font-size: 18px; }
.manifesto-body .accent {
  font-family: var(--display);
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 600;
  text-transform: uppercase;
  line-height: 1.15;
  color: var(--navy);
  margin: 1.4em 0;
  padding-left: 22px;
  border-left: 3px solid var(--sky);
}
.term { font-weight: 600; color: var(--teal); }

.founder {
  margin-top: clamp(70px, 9vw, 110px);
  display: grid;
  background: var(--navy-deep);
  border-radius: 28px;
  overflow: hidden;
  color: rgba(255, 255, 255, .8);
}
.founder figure { margin: 0; position: relative; min-height: 360px; }
.founder figure img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 20%; }
.founder figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(19, 36, 47, .9) 100%);
}
.founder-text { padding: clamp(32px, 5vw, 64px); }
.founder blockquote { margin: 0; position: relative; }
.founder blockquote::before {
  content: "“";
  display: block;
  font-family: Georgia, serif;
  font-size: 96px;
  line-height: .7;
  height: 44px;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.founder blockquote p { font-size: 17px; }
.founder blockquote p:first-of-type { font-size: clamp(19px, 1.9vw, 22px); color: var(--white); line-height: 1.5; }
.founder cite {
  display: block;
  font-style: normal;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .12);
}
.founder cite strong {
  display: block;
  font-family: var(--display);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: .02em;
  text-transform: uppercase;
  color: var(--white);
}
.founder cite .role { display: block; color: var(--sky); font-size: 14px; font-weight: 600; margin: 4px 0 10px; }
.founder cite .cred { display: block; font-size: 14px; line-height: 1.6; color: rgba(255, 255, 255, .62); }
.founder cite .crm { display: block; margin-top: 10px; font-size: 13px; font-weight: 600; letter-spacing: .04em; color: rgba(255, 255, 255, .78); }
@media (min-width: 900px) {
  .founder { grid-template-columns: 5fr 7fr; }
  .founder figure::after { background: linear-gradient(90deg, transparent 60%, rgba(19, 36, 47, .85) 100%); }
}

/* Propósito, missão, visão, valores */
.purpose {
  font-family: var(--display);
  font-size: clamp(28px, 3.7vw, 48px);
  font-weight: 500;
  line-height: 1.14;
  text-transform: uppercase;
  color: var(--navy);
  max-width: 32ch;
  margin-top: 8px;
}
.mv { display: grid; gap: 28px; margin-top: clamp(56px, 7vw, 88px); }
@media (min-width: 760px) { .mv { grid-template-columns: 1fr 1fr; gap: 48px; } }
.mv article { border-top: 2px solid var(--navy); padding-top: 26px; }
.mv h3 { font-size: 30px; margin-bottom: 14px; }

.values-head { margin-top: clamp(64px, 8vw, 100px); margin-bottom: 30px; }
.values-head h3 { font-size: clamp(30px, 3.4vw, 40px); }
.values { display: grid; gap: 18px; }
@media (min-width: 640px) { .values { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1040px) { .values { grid-template-columns: repeat(4, 1fr); } }
.value {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 30px 26px 32px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.value:hover { transform: translateY(-4px); box-shadow: 0 20px 40px -24px rgba(19, 36, 47, .35); }
.value .num {
  font-family: var(--display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--teal);
}
.value h4 {
  font-family: var(--display);
  font-size: 23px;
  font-weight: 600;
  line-height: 1.12;
  text-transform: uppercase;
  color: var(--navy);
  margin: 14px 0 12px;
}
.value p { font-size: 15.5px; color: var(--muted); }

/* Excelência acadêmica */
.excellence { overflow: hidden; }
.excellence::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 60% at 100% 0%, rgba(0, 101, 122, .45), transparent 70%);
  pointer-events: none;
}
.excellence .wrap { position: relative; }
.schools { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.schools span {
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 13.5px;
  font-weight: 500;
  color: rgba(255, 255, 255, .85);
}
.why-title { font-size: clamp(26px, 3vw, 34px); margin: clamp(64px, 8vw, 96px) 0 30px; }
.pillars { display: grid; gap: 18px; }
@media (min-width: 860px) { .pillars { grid-template-columns: repeat(3, 1fr); } }
.pillar {
  border: 1px solid rgba(255, 255, 255, .1);
  background: linear-gradient(180deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .015));
  border-radius: 22px;
  padding: 32px 28px;
}
.pillar .icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: grid; place-items: center;
  background: rgba(88, 195, 241, .12);
  color: var(--sky);
  margin-bottom: 22px;
}
.pillar .icon svg { width: 26px; height: 26px; }
.pillar h3 { font-size: 24px; margin-bottom: 12px; }
.pillar p { font-size: 15.5px; }

/* Ecossistema */
.eco-cards { display: grid; gap: 22px; margin-top: clamp(48px, 6vw, 72px); }
@media (min-width: 900px) { .eco-cards { grid-template-columns: 1fr 1fr; } }
.eco {
  border-radius: 26px;
  padding: clamp(30px, 4vw, 48px);
  border: 1px solid var(--line);
  background: var(--white);
}
.eco.featured { background: var(--navy); border-color: var(--navy); color: rgba(255, 255, 255, .8); }
.eco.featured h3 { color: var(--white); }
.eco .tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 16px;
}
.eco.featured .tag { color: var(--sky); }
.eco h3 { font-size: clamp(28px, 3vw, 36px); margin-bottom: 16px; }
.timeline { display: grid; gap: 12px; margin-top: 28px; }
@media (min-width: 520px) { .timeline { grid-template-columns: repeat(3, 1fr); } }
.timeline div {
  border-radius: 16px;
  padding: 18px 18px 20px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .1);
}
.timeline b {
  display: block;
  font-family: var(--display);
  font-size: 22px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .03em;
  margin-bottom: 4px;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.timeline span { font-size: 14px; line-height: 1.5; display: block; }
.flow { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.flow span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--navy);
  background: var(--paper);
  border-radius: 999px;
  padding: 9px 15px;
}
.flow span + span::before { content: "→"; color: var(--teal); margin-right: 2px; }

/* Posicionamento */
.seal {
  margin: clamp(48px, 6vw, 72px) 0;
  padding: clamp(36px, 5vw, 60px);
  border-radius: 28px;
  background:
    radial-gradient(ellipse 60% 90% at 0% 0%, rgba(88, 195, 241, .25), transparent 60%),
    linear-gradient(120deg, var(--teal-deep), var(--navy));
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.seal img { position: absolute; right: -40px; bottom: -40px; width: 300px; opacity: .14; }
.seal small {
  display: block;
  font-size: 12.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--sky);
  margin-bottom: 18px;
}
.seal p {
  position: relative;
  font-family: var(--display);
  font-size: clamp(30px, 4.4vw, 56px);
  font-weight: 600;
  line-height: 1.08;
  text-transform: uppercase;
  max-width: 20ch;
}
.gains { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
@media (min-width: 860px) { .gains { grid-template-columns: repeat(3, 1fr); gap: 22px; } }
.gains li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  border-top: 1px solid var(--line);
  padding-top: 20px;
  font-size: 16.5px;
  color: var(--navy);
  font-weight: 500;
}
.gains svg { width: 22px; height: 22px; flex: none; color: var(--teal); margin-top: 2px; }

/* CTA final */
.cta {
  text-align: center;
  color: rgba(255, 255, 255, .8);
  background:
    radial-gradient(ellipse 50% 70% at 50% 110%, rgba(88, 195, 241, .3), transparent 70%),
    radial-gradient(ellipse 60% 60% at 50% 0%, rgba(0, 101, 122, .35), transparent 70%),
    var(--navy-ink);
  overflow: hidden;
}
.cta h2 { color: var(--white); font-size: clamp(42px, 7vw, 92px); }
.cta p { max-width: 560px; margin: 26px auto 40px; font-size: clamp(17px, 1.7vw, 20px); }
.cta .btn { padding: 19px 32px; font-size: 15.5px; max-width: 100%; }
.cta-symbol { width: 92px; margin: 0 auto 34px; }

/* Rodapé */
.site-footer { background: var(--navy-ink); border-top: 1px solid rgba(255, 255, 255, .07); color: rgba(255, 255, 255, .55); padding: 48px 0 40px; font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; }
.site-footer img { width: 170px; height: auto; opacity: .9; }
.site-footer a { color: rgba(255, 255, 255, .8); text-decoration: none; }
.site-footer a:hover { color: var(--white); }
.footer-meta { text-align: right; line-height: 1.7; }

/* Responsivo */
@media (max-width: 899px) {
  .nav a:not(.btn) { display: none; }
}
@media (max-width: 520px) {
  body { font-size: 16px; }
  .nav .btn { padding: 10px 16px; font-size: 13px; }
  .hero { padding: 120px 0 110px; }
  .hero-actions .btn { width: 100%; }
  .footer-meta { text-align: left; }
}

/* Animação de entrada (só com JS e sem preferência por movimento reduzido) */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .value { transition: none; }
}