/* ============================================================
   Rio Health Congress 2026 — Grupo VIP
   Paleta: verde-escuro profundo + teal da marca + roxo
   ============================================================ */

:root{
  --ink:            #07100f;
  --ink-2:          #0b1917;
  --ink-3:          #102523;
  --line:           rgba(255,255,255,.10);
  --line-strong:    rgba(255,255,255,.18);

  --paper:          #f6f4ef;
  --text:           #eef3f2;
  --text-soft:      rgba(238,243,242,.68);
  --text-faint:     rgba(238,243,242,.44);

  --teal:           #1fb6b0;
  --teal-soft:      #6fded9;
  --purple:         #5636d1;
  --magenta:        #e2498a;

  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --wrap: 1180px;
  --pad: clamp(20px, 5vw, 40px);
  --radius: 16px;

  --ease: cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.65;
  font-weight:300;
  letter-spacing:-.005em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{ max-width:100%; height:auto; display:block; }
a{ color:inherit; }

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

.skip{
  position:absolute; left:-9999px; top:0; z-index:100;
  background:var(--teal); color:var(--ink); padding:12px 20px; border-radius:0 0 8px 0;
  font-size:14px; text-decoration:none;
}
.skip:focus{ left:0; }

:focus-visible{ outline:2px solid var(--teal-soft); outline-offset:3px; border-radius:4px; }

/* ---------- Tipografia ---------- */

h1,h2,h3{
  font-family:var(--serif);
  font-weight:400;
  line-height:1.08;
  letter-spacing:-.022em;
  margin:0;
  text-wrap:balance;
}

h1{ font-size:clamp(2.4rem, 6.2vw, 4.4rem); }
h2{ font-size:clamp(1.9rem, 4.2vw, 3.1rem); }
h3{ font-size:1.14rem; font-family:var(--sans); font-weight:500; letter-spacing:-.015em; line-height:1.35; }

em{
  font-style:italic;
  color:var(--teal-soft);
}

p{ margin:0; }
strong{ font-weight:500; color:var(--text); }

.eyebrow{
  display:flex; align-items:center; gap:10px; flex-wrap:wrap;
  font-size:.74rem; font-weight:500;
  letter-spacing:.16em; text-transform:uppercase;
  color:var(--teal);
  margin:0 0 22px;
}
.eyebrow .dot{ width:4px; height:4px; border-radius:50%; background:currentColor; opacity:.5; }

.lead, .section__lead{
  font-size:clamp(1.02rem, 1.5vw, 1.16rem);
  color:var(--text-soft);
  max-width:62ch;
  line-height:1.7;
}

.section__lead{ margin-top:22px; }

.fineprint{
  margin-top:36px;
  font-size:.88rem;
  color:var(--text-faint);
  text-align:center;
}

/* ---------- Botões ---------- */

.btn, .sticky-cta{
  --bg: var(--teal);
  position:relative;
  overflow:hidden;
  isolation:isolate;
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  background:var(--bg);
  color:#04100f;
  font-family:var(--sans);
  font-weight:600;
  font-size:.95rem;
  text-transform:uppercase;
  letter-spacing:.09em;
  padding:15px 30px;
  border-radius:100px;
  text-decoration:none;
  border:1px solid transparent;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease), background .25s;
  box-shadow:0 1px 0 rgba(255,255,255,.35) inset, 0 12px 34px -14px rgba(31,182,176,.75);
  white-space:nowrap;
  animation:btnPulse 2.8s var(--ease) infinite;
}

/* luz passando pelo botão */
.btn::before, .sticky-cta::before{
  content:"";
  position:absolute; top:0; bottom:0;
  left:-60%; width:45%;
  background:linear-gradient(100deg,
    rgba(255,255,255,0) 0%,
    rgba(255,255,255,.16) 35%,
    rgba(255,255,255,.72) 50%,
    rgba(255,255,255,.16) 65%,
    rgba(255,255,255,0) 100%);
  transform:skewX(-18deg);
  pointer-events:none;
  animation:btnShine 3.6s var(--ease) infinite;
}

@keyframes btnShine{
  0%   { left:-60%; opacity:0; }
  8%   { opacity:1; }
  55%  { left:115%; opacity:1; }
  60%  { left:115%; opacity:0; }
  100% { left:115%; opacity:0; }
}

@keyframes btnPulse{
  0%, 100%{
    box-shadow:0 1px 0 rgba(255,255,255,.35) inset,
               0 12px 34px -14px rgba(31,182,176,.75),
               0 0 0 0 rgba(31,182,176,.55);
  }
  55%{
    box-shadow:0 1px 0 rgba(255,255,255,.4) inset,
               0 16px 40px -14px rgba(31,182,176,.9),
               0 0 0 12px rgba(31,182,176,0);
  }
}

.btn:hover, .sticky-cta:hover{
  transform:translateY(-2px);
  background:var(--teal-soft);
  box-shadow:0 1px 0 rgba(255,255,255,.4) inset, 0 20px 44px -16px rgba(31,182,176,.9);
  animation-play-state:paused;
}
.btn:hover::before, .sticky-cta:hover::before{ animation-duration:1.4s; }
.btn:active, .sticky-cta:active{ transform:translateY(0); }

.btn--lg{ padding:18px 38px; font-size:1rem; letter-spacing:.1em; }
.btn--sm{ padding:10px 20px; font-size:.78rem; letter-spacing:.08em; }

/* ---------- Nav ---------- */

.nav{
  position:fixed; inset:0 0 auto 0; z-index:50;
  transition:background .4s var(--ease), border-color .4s, backdrop-filter .4s;
  border-bottom:1px solid transparent;
}
.nav.is-stuck{
  background:rgba(7,16,15,.82);
  backdrop-filter:blur(16px) saturate(160%);
  -webkit-backdrop-filter:blur(16px) saturate(160%);
  border-bottom-color:var(--line);
}
.nav__inner{
  display:flex; align-items:center; justify-content:space-between; gap:24px;
  height:74px;
}
.nav__brand img{ width:auto; height:34px; }
.nav__meta{ display:flex; align-items:center; gap:22px; }
.nav__date{
  font-size:.78rem; letter-spacing:.1em; text-transform:uppercase;
  color:var(--text-faint);
}

@media (max-width:760px){
  .nav__date{ display:none; }
  .nav__inner{ height:64px; }
  .nav__brand img{ height:28px; }
}

/* ---------- Hero ---------- */

.hero{
  position:relative;
  padding:clamp(130px, 18vh, 180px) 0 clamp(44px, 5.5vw, 68px);
  overflow:hidden;
  isolation:isolate;
}

/* Vídeo de fundo (YouTube, mudo, em loop) */
.hero__video{
  position:absolute; inset:0; z-index:-3;
  overflow:hidden;
  background:var(--ink);
  pointer-events:none;
}
.hero__video iframe{
  position:absolute; top:50%; left:50%;
  transform:translate(-50%, -50%);
  /* cover: sempre 16/9 preenchendo a área, sem barras */
  width:max(100%, 177.78vh);
  height:max(100%, 56.25vw);
  min-width:100%; min-height:100%;
  border:0;
  pointer-events:none;
}

/* Overlay de leitura sobre o vídeo */
.hero__scrim{
  position:absolute; inset:0; z-index:-2;
  pointer-events:none;
  background:
    linear-gradient(100deg, rgba(7,16,15,.94) 0%, rgba(7,16,15,.82) 42%, rgba(7,16,15,.55) 72%, rgba(7,16,15,.42) 100%),
    linear-gradient(to bottom, rgba(7,16,15,.72) 0%, rgba(7,16,15,.30) 38%, rgba(7,16,15,.86) 100%);
}

.hero__glow{
  position:absolute; z-index:-1;
  top:-38%; left:50%; translate:-50% 0;
  width:min(1400px, 150vw); aspect-ratio:1/.62;
  background:
    radial-gradient(45% 55% at 32% 45%, rgba(31,182,176,.34), transparent 68%),
    radial-gradient(42% 50% at 68% 38%, rgba(86,54,209,.30), transparent 70%),
    radial-gradient(34% 42% at 52% 72%, rgba(226,73,138,.16), transparent 72%);
  filter:blur(28px);
  opacity:.52;
  mix-blend-mode:screen;
  animation:drift 22s ease-in-out infinite alternate;
}

@media (max-width:700px){
  /* mais contraste onde o texto ocupa quase toda a largura */
  .hero__scrim{
    background:
      linear-gradient(to bottom, rgba(7,16,15,.86) 0%, rgba(7,16,15,.72) 45%, rgba(7,16,15,.92) 100%);
  }
}

@media (prefers-reduced-motion:reduce){
  .hero__video{ display:none; }
  .hero__glow{ opacity:.9; animation:none; }
}

@keyframes drift{
  from{ transform:translate(-2%, 0) scale(1); }
  to  { transform:translate(2%, 3%) scale(1.06); }
}

.hero::after{
  content:"";
  position:absolute; inset:auto 0 0 0; height:220px; z-index:-1;
  background:linear-gradient(to bottom, transparent, var(--ink));
  pointer-events:none;
}

.hero__inner{ position:relative; }

.hero h1{ max-width:19ch; margin-bottom:30px; }
.hero .lead{ max-width:60ch; }

.hero__actions{
  display:flex; align-items:center; gap:22px; flex-wrap:wrap;
  margin-top:40px;
}
.hero__note{
  font-size:.85rem; color:var(--text-faint);
  letter-spacing:.02em;
}

/* ---------- Sections ---------- */

.section{
  padding:clamp(76px, 10vw, 132px) 0;
  position:relative;
}
.section--alt{
  background:var(--ink-2);
  border-block:1px solid var(--line);
}
.section h2{ margin-bottom:0; }

.section__cta{ margin-top:clamp(44px, 6vw, 64px); }

/* ---------- Timeline ---------- */

.timeline{
  list-style:none; margin:clamp(48px, 6vw, 72px) 0 0; padding:0;
  display:grid; grid-template-columns:repeat(4, 1fr);
  gap:0;
  border-top:1px solid var(--line);
}
.timeline__item{
  padding:34px 30px 0 0;
  position:relative;
  border-right:1px solid var(--line);
}
.timeline__item:last-child{ border-right:0; padding-right:0; }
.timeline__item:not(:first-child){ padding-left:30px; }

.timeline__item::before{
  content:"";
  position:absolute; top:-4px; left:0;
  width:7px; height:7px; border-radius:50%;
  background:var(--line-strong);
}
.timeline__item:not(:first-child)::before{ left:30px; }
.timeline__item.is-active::before{
  background:var(--teal);
  box-shadow:0 0 0 5px rgba(31,182,176,.16);
}

.timeline__date{
  display:block;
  font-size:.76rem; letter-spacing:.12em; text-transform:uppercase;
  color:var(--text-faint);
  margin-bottom:14px;
}
.timeline__item.is-active .timeline__date{ color:var(--teal); }
.timeline__item h3{ margin-bottom:12px; }
.timeline__item p{ font-size:.94rem; color:var(--text-soft); line-height:1.65; }

@media (max-width:900px){
  .timeline{ grid-template-columns:1fr; border-top:0; }
  .timeline__item{
    border-right:0; padding:0 0 0 26px;
    border-left:1px solid var(--line);
    padding-bottom:34px;
  }
  .timeline__item:not(:first-child){ padding-left:26px; }
  .timeline__item::before,
  .timeline__item:not(:first-child)::before{ left:-4px; top:6px; }
  .timeline__item:last-child{ padding-bottom:0; }
}

/* ---------- Grids / Cards ---------- */

.grid{ display:grid; gap:clamp(18px, 2.2vw, 26px); margin-top:clamp(48px, 6vw, 68px); }
.grid--3{ grid-template-columns:repeat(3, 1fr); }

@media (max-width:900px){ .grid--3{ grid-template-columns:1fr; } }

.card{
  padding:34px 30px 32px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.008));
  transition:border-color .4s var(--ease), transform .4s var(--ease);
}
.card:hover{ border-color:var(--line-strong); transform:translateY(-3px); }

.card__index{
  display:block;
  font-family:var(--serif);
  font-size:.95rem; letter-spacing:.05em;
  color:var(--teal);
  margin-bottom:26px;
}
.card h3{ margin-bottom:14px; }
.card p{ font-size:.94rem; color:var(--text-soft); }

/* ---------- Tiers ---------- */

.grid--tiers{ align-items:stretch; }

.tier{
  display:flex; flex-direction:column;
  padding:34px 30px 32px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(255,255,255,.02);
  transition:border-color .4s var(--ease), transform .4s var(--ease);
}
.tier:hover{ border-color:var(--line-strong); transform:translateY(-3px); }

.tier--featured{
  border-color:rgba(31,182,176,.42);
  background:
    linear-gradient(180deg, rgba(31,182,176,.10), rgba(86,54,209,.05) 55%, transparent),
    rgba(255,255,255,.02);
  box-shadow:0 24px 60px -34px rgba(31,182,176,.5);
}

.tier__tag{
  font-size:.7rem; letter-spacing:.16em; text-transform:uppercase;
  color:var(--teal);
  margin-bottom:22px;
}
.tier h3{
  font-family:var(--serif); font-weight:400;
  font-size:1.42rem; line-height:1.2;
  margin-bottom:14px;
}
.tier > p{ font-size:.94rem; color:var(--text-soft); }

.tier__list{
  list-style:none; margin:26px 0 0; padding:24px 0 0;
  border-top:1px solid var(--line);
  display:grid; gap:12px;
  margin-top:auto;
}
.tier__list li{
  position:relative;
  padding-left:24px;
  font-size:.9rem;
  color:var(--text-soft);
  line-height:1.5;
}
.tier__list li::before{
  content:"";
  position:absolute; left:2px; top:.55em;
  width:9px; height:5px;
  border-left:1.5px solid var(--teal);
  border-bottom:1.5px solid var(--teal);
  rotate:-45deg;
}

/* ---------- Sobre ---------- */

.about{
  display:grid; grid-template-columns:1.15fr .85fr;
  gap:clamp(36px, 5vw, 72px);
  align-items:start;
}
@media (max-width:960px){ .about{ grid-template-columns:1fr; } }

.pillars{
  margin:clamp(40px, 5vw, 56px) 0 0;
  display:grid; gap:0;
  border-top:1px solid var(--line);
}
.pillar{
  display:grid; grid-template-columns:170px 1fr;
  gap:20px;
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.pillar dt{
  font-family:var(--serif);
  font-size:1.05rem;
  color:#fff;
}
.pillar dd{
  margin:0;
  font-size:.93rem;
  color:var(--text-soft);
}
@media (max-width:620px){
  .pillar{ grid-template-columns:1fr; gap:6px; }
}

.figure{
  margin:0;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
}
.figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  filter:saturate(.9) contrast(1.02);
}

.curator{
  margin:26px 0 0;
  padding:28px 26px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(86,54,209,.10), rgba(255,255,255,.012));
}
.curator__name{
  font-family:var(--serif); font-size:1.24rem; color:#fff;
  margin-bottom:6px;
}
.curator__role{
  font-size:.78rem; letter-spacing:.08em; text-transform:uppercase;
  color:var(--teal);
  margin-bottom:16px;
}
.curator p:last-child{ font-size:.92rem; color:var(--text-soft); }

/* ---------- Impacto (números) ---------- */

.stats{
  position:relative;
  z-index:5;
  margin-top:0;
  margin-bottom:clamp(24px, 4vw, 48px);
}
.stats__card{
  border:1px solid var(--line-strong);
  border-radius:20px;
  padding:clamp(26px, 3.4vw, 40px) clamp(20px, 3vw, 44px);
  background:linear-gradient(180deg, rgba(15,32,30,.92), rgba(9,20,19,.94));
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  box-shadow:0 30px 70px -30px rgba(0,0,0,.9);
}
.stats__title{
  text-align:center;
  font-size:.76rem; letter-spacing:.18em; text-transform:uppercase;
  color:var(--teal);
  margin-bottom:clamp(22px, 2.6vw, 32px);
}
.stats__grid{
  display:grid; grid-template-columns:repeat(4, minmax(0,1fr));
  gap:clamp(18px, 2.4vw, 32px);
}
.stat{
  display:flex; flex-direction:column; align-items:center; gap:8px;
  text-align:center;
  position:relative;
}
.stat + .stat::before{
  content:"";
  position:absolute; left:calc(-1 * clamp(9px, 1.2vw, 16px)); top:12%; bottom:12%;
  width:1px; background:var(--line);
}
.stat__num{
  font-family:var(--serif);
  font-size:clamp(2rem, 3.6vw, 3.1rem);
  font-weight:300; line-height:1;
  letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;
  color:#fff;
}
.stat__label{
  font-size:.82rem; letter-spacing:.06em; text-transform:uppercase;
  color:var(--text-faint);
  margin:0;
  max-width:18ch;
}

@media (max-width:760px){
  .stats{ margin-top:0; }
  .stats__grid{ grid-template-columns:repeat(2, minmax(0,1fr)); row-gap:28px; }
  .stat:nth-child(odd)::before{ display:none; }
}

/* ---------- Palco ---------- */

.stage{ --wrap:1460px; }
.stage__inner{ text-align:center; display:flex; flex-direction:column; align-items:center; }
.stage .eyebrow{ justify-content:center; }
.stage h2{ max-width:20ch; }
.stage .section__lead{ margin-inline:auto; }

/* ---------- Carrossel de palestrantes ---------- */

.carousel{
  --per-view:4;
  --gap:clamp(12px, 1.4vw, 18px);
  position:relative;
  width:100%;
  margin-top:clamp(44px, 5vw, 60px);
}
.carousel__viewport{
  overflow:hidden;
  border-radius:16px;
}
.carousel__track{
  display:flex;
  gap:var(--gap);
  list-style:none;
  margin:0; padding:0;
  transition:transform .55s cubic-bezier(.22,.61,.36,1);
  will-change:transform;
}
.carousel__item{
  flex:0 0 calc((100% - (var(--per-view) - 1) * var(--gap)) / var(--per-view));
  min-width:0;
}
.carousel__item img{
  display:block;
  width:100%;
  aspect-ratio:3/4;
  object-fit:cover;
  border-radius:14px;
  border:1px solid var(--line);
  background:var(--ink-2);
}

.carousel__nav{
  position:absolute; top:calc(50% - 26px);
  transform:translateY(-50%);
  z-index:2;
  display:grid; place-items:center;
  width:44px; height:44px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(7,16,15,.72);
  backdrop-filter:blur(8px);
  color:#fff;
  cursor:pointer;
  transition:background .25s ease, border-color .25s ease, opacity .25s ease;
}
.carousel__nav:hover{ background:rgba(7,16,15,.92); border-color:var(--teal); }
.carousel__nav:disabled{ opacity:.28; cursor:default; }
.carousel__nav--prev{ left:-8px; }
.carousel__nav--next{ right:-8px; }

.carousel__dots{
  display:flex; justify-content:center; gap:8px;
  margin-top:22px;
}
.carousel__dot{
  width:8px; height:8px; padding:0;
  border-radius:999px;
  border:0;
  background:var(--line-strong);
  cursor:pointer;
  transition:background .25s ease, width .25s ease;
}
.carousel__dot.is-active{ width:24px; background:var(--teal); }

@media (max-width:1100px){ .carousel{ --per-view:3; } }
@media (max-width:780px){ .carousel{ --per-view:2; } }
@media (max-width:520px){
  .carousel{ --per-view:1; }
  .carousel__item img{ aspect-ratio:4/5; }
  .carousel__nav--prev{ left:-4px; }
  .carousel__nav--next{ right:-4px; }
}

@media (prefers-reduced-motion:reduce){
  .carousel__track{ transition:none; }
}

/* ---------- CTA final ---------- */

.final{
  position:relative;
  padding:clamp(88px, 11vw, 148px) 0;
  overflow:hidden;
  isolation:isolate;
  border-top:1px solid var(--line);
  text-align:center;
}
.final__glow{
  position:absolute; z-index:-1;
  bottom:-52%; left:50%; translate:-50% 0;
  width:min(1200px, 140vw); aspect-ratio:1/.6;
  background:
    radial-gradient(48% 55% at 40% 55%, rgba(31,182,176,.30), transparent 70%),
    radial-gradient(44% 50% at 62% 45%, rgba(86,54,209,.26), transparent 72%);
  filter:blur(30px);
}
.final__inner{ display:flex; flex-direction:column; align-items:center; }
.final .eyebrow{ justify-content:center; }
.final h2{ max-width:22ch; }
.final .section__lead{ margin-inline:auto; }
.final .hero__actions{ justify-content:center; }

.hashtags{
  margin-top:44px;
  font-size:.78rem; letter-spacing:.18em; text-transform:uppercase;
  color:var(--text-faint);
}

/* ---------- Footer ---------- */

.foot{
  padding:44px 0;
  border-top:1px solid var(--line);
  background:var(--ink-2);
}
.foot__inner{
  display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap;
}
.foot img{ height:30px; width:auto; opacity:.85; }
.foot p{ font-size:.82rem; color:var(--text-faint); letter-spacing:.02em; }

/* ---------- Sticky CTA (mobile) ---------- */

.sticky-cta{
  position:fixed; z-index:45;
  left:50%; bottom:18px; translate:-50% 0;
  display:none;
  font-size:.86rem;
  opacity:0; pointer-events:none;
  transition:opacity .4s var(--ease), translate .4s var(--ease);
}
.sticky-cta.is-visible{ opacity:1; pointer-events:auto; }

@media (max-width:760px){
  .sticky-cta{ display:inline-flex; }
  body{ padding-bottom:0; }
}

/* ---------- Reveal ---------- */

.reveal{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.is-in{ opacity:1; transform:none; }

@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition-duration:.01ms !important; }
  .reveal{ opacity:1; transform:none; }
  html{ scroll-behavior:auto; }
}