/* ============================================================
   GUILHERME MORAES — marca "Sinal" v3
   G-onda contínuo · degradê ciano→royal · aurora sobre papel.
   ============================================================ */

:root {
  --papel:   #FBFAF8;
  --tinta:   #101A2D;
  --meio:    #5C6674;
  --ciano:   #22D3EE;
  --ceu:     #0EA5E9;
  --royal:   #1D4ED8;
  --fio:     #E8E5DF;
  --branco:  #FFFFFF;
  --noite:   #0A1128;

  --grad: linear-gradient(120deg, var(--ciano), var(--ceu) 45%, var(--royal));

  --display: "Bricolage Grotesque", system-ui, sans-serif;
  --serifa:  "Instrument Serif", Georgia, serif;
  --texto:   "Instrument Sans", system-ui, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, monospace;

  --lento: 1.1s cubic-bezier(.22,.61,.36,1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--papel);
  color: var(--tinta);
  font-family: var(--texto);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: #D7F5FB; color: var(--tinta); }
a { color: inherit; text-decoration: none; }

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

/* ---------- revelação ---------- */
.rev { opacity: 0; transform: translateY(24px); transition: opacity var(--lento), transform var(--lento); }
.rev.viu { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .rev { opacity: 1; transform: none; transition: none; }
  * { animation: none !important; transition: none !important; }
}

/* ============================================================
   CAPA — uma tela só, aurora sobre papel
   ============================================================ */
body.capa { height: 100svh; overflow: hidden; }

.aurora { position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.aurora .nevoa {
  position: absolute; border-radius: 50%;
  filter: blur(90px); opacity: .5;
  will-change: transform;
}
.nevoa.a {
  width: 55vw; height: 55vw; left: -12vw; top: -18vw;
  background: radial-gradient(circle, #22D3EE 0%, transparent 65%);
  animation: flutua-a 34s ease-in-out infinite alternate;
}
.nevoa.b {
  width: 48vw; height: 48vw; right: -10vw; top: 8vh;
  background: radial-gradient(circle, #1D4ED8 0%, transparent 65%);
  opacity: .34;
  animation: flutua-b 42s ease-in-out infinite alternate;
}
.nevoa.c {
  width: 42vw; height: 42vw; left: 26vw; bottom: -20vw;
  background: radial-gradient(circle, #0EA5E9 0%, transparent 62%);
  opacity: .4;
  animation: flutua-c 38s ease-in-out infinite alternate;
}
@keyframes flutua-a { to { transform: translate(9vw, 7vh) scale(1.12); } }
@keyframes flutua-b { to { transform: translate(-7vw, 9vh) scale(.92); } }
@keyframes flutua-c { to { transform: translate(-6vw, -8vh) scale(1.08); } }

/* grão finíssimo por cima da aurora, pra tirar a cara de "gradiente de tela" */
.grao {
  position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

.palco {
  position: relative; z-index: 2;
  height: 100svh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: clamp(1.2rem, 3vh, 2rem) clamp(1.4rem, 5vw, 4rem);
  max-width: 1400px; margin-inline: auto;
}

/* topo da capa */
.capa-topo { display: flex; align-items: center; justify-content: space-between; }
.capa-topo .marca {
  display: flex; align-items: center; gap: .7rem;
  font-family: var(--display); font-weight: 600; font-size: 1.02rem;
  white-space: nowrap;
}
.capa-topo .marca img { width: 30px; height: 30px; display: block; }
.capa-topo nav { display: flex; gap: 1.7rem; }
.capa-topo nav a {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--meio);
  transition: color .4s ease;
}
.capa-topo nav a:hover { color: var(--royal); }

/* centro da capa */
.capa-meio { display: grid; align-content: center; justify-items: start; position: relative; }
.capa-meio .olho {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .24em;
  text-transform: uppercase; color: var(--meio); margin-bottom: 1.4rem;
  display: flex; align-items: center; gap: .8rem;
}
.capa-meio .olho::before {
  content: ""; width: 34px; height: 2px; background: var(--grad); border-radius: 2px;
}
.capa-meio h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(3.4rem, 11.5vw, 9rem);
  line-height: .96; letter-spacing: -.04em;
}
.capa-meio h1 .fino {
  display: block;
  font-family: var(--serifa); font-style: italic; font-weight: 400;
  letter-spacing: -.015em;
}
.capa-meio .frase {
  margin-top: 1.8rem; max-width: 30rem;
  font-size: clamp(1rem, 1.5vw, 1.18rem); color: var(--meio);
}
.capa-meio .acoes { margin-top: 2.4rem; display: flex; gap: .9rem; flex-wrap: wrap; }

.botao {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase;
  padding: .95rem 1.5rem; border-radius: 999px;
  border: 1px solid transparent;
  transition: transform .5s ease, box-shadow .5s ease, border-color .5s ease, color .5s ease;
}
.botao.grad {
  background: var(--grad); color: #fff;
  box-shadow: 0 10px 30px rgba(14, 116, 200, .28);
}
.botao.grad:hover { transform: translateY(-3px); box-shadow: 0 16px 40px rgba(14, 116, 200, .38); }
.botao.linha { border-color: var(--tinta); }
.botao.linha:hover { border-color: var(--royal); color: var(--royal); transform: translateY(-3px); }

/* o G gigante da capa, respirando na direita */
.capa-g {
  position: absolute; right: clamp(-2rem, 2vw, 4rem); top: 50%;
  translate: 0 -50%;
  width: clamp(200px, 30vw, 460px);
  opacity: .95;
  filter: drop-shadow(0 24px 60px rgba(29, 78, 216, .18));
  animation: respira 12s ease-in-out infinite;
}
@keyframes respira {
  0%, 100% { translate: 0 -50%; rotate: 0deg; }
  50%      { translate: 0 calc(-50% - 14px); rotate: 1.2deg; }
}

/* pé da capa */
.capa-pe {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  font-family: var(--mono); font-size: .68rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--meio);
}
.capa-pe .traco { flex: 1; height: 1px; background: var(--fio); }

@media (max-width: 820px) {
  body.capa { height: auto; min-height: 100svh; overflow: auto; }
  .palco { height: auto; min-height: 100svh; }
  .capa-g { position: static; translate: none; margin: 2.2rem auto 0; width: min(52vw, 240px); animation: none; }
  .capa-meio { justify-items: center; text-align: center; }
  .capa-meio .olho { font-size: .62rem; letter-spacing: .16em; }
  .capa-meio .olho::before { display: none; }
  .capa-meio .acoes { justify-content: center; }
  .capa-topo .marca { font-size: .88rem; gap: .5rem; }
  .capa-topo .marca img { width: 24px; height: 24px; }
  .capa-topo nav { gap: .8rem; }
  .capa-topo nav a { font-size: .6rem; white-space: nowrap; }
  .capa-topo nav a[href*="github"] { display: none; }
  .capa-pe { flex-direction: column; gap: .35rem; text-align: center; font-size: .6rem; margin-top: 2rem; }
  .capa-pe .traco { display: none; }
}

/* ============================================================
   PÁGINAS INTERNAS (marca e central) — topo comum
   ============================================================ */
.topo {
  position: fixed; inset: 0 0 auto 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem clamp(1.25rem, 4vw, 3rem);
  transition: background .5s ease, box-shadow .5s ease;
}
.topo.rolou {
  background: color-mix(in srgb, var(--papel) 88%, transparent);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--fio);
}
.topo .marca {
  display: flex; align-items: center; gap: .6rem;
  font-family: var(--display); font-weight: 600; font-size: 1rem; white-space: nowrap;
}
.topo .marca img { width: 26px; height: 26px; }
.topo nav { display: flex; align-items: center; gap: 1.5rem; }
.topo nav a, .topo nav button {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--meio);
  background: none; border: none; cursor: pointer;
  transition: color .4s ease;
}
.topo nav a:hover, .topo nav button:hover { color: var(--royal); }
@media (max-width: 560px) {
  .topo .marca { font-size: .85rem; gap: .45rem; }
  .topo .marca img { width: 22px; height: 22px; }
  .topo nav { gap: .85rem; }
  .topo nav a, .topo nav button { font-size: .6rem; letter-spacing: .1em; white-space: nowrap; }
}

/* ============================================================
   MARCA — o brand book vivo
   ============================================================ */
.marca-pagina { max-width: 1080px; margin-inline: auto; padding: clamp(7rem, 14vh, 9rem) clamp(1.25rem, 4vw, 2.5rem) 5rem; }

.marca-hero { text-align: center; padding-bottom: clamp(3rem, 8vh, 5rem); }
.marca-hero img { width: clamp(140px, 20vw, 210px); margin-inline: auto; display: block; filter: drop-shadow(0 18px 44px rgba(29,78,216,.16)); }
.marca-hero h1 { font-family: var(--display); font-weight: 700; font-size: clamp(2.4rem, 6vw, 4.2rem); letter-spacing: -.03em; margin-top: 1.6rem; }
.marca-hero p { color: var(--meio); max-width: 34rem; margin: .8rem auto 0; }

.faixa-grad { height: 10px; border-radius: 999px; background: var(--grad); margin: 0 auto 3.5rem; max-width: 320px; }

.marca-secao { border-top: 1px solid var(--fio); padding: clamp(2.6rem, 6vh, 4rem) 0; }
.marca-secao > h2 {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .22em;
  text-transform: uppercase; color: var(--meio); font-weight: 500; margin-bottom: 1.8rem;
}
.marca-secao .conversa { font-family: var(--display); font-weight: 600; font-size: clamp(1.5rem, 3vw, 2.1rem); letter-spacing: -.02em; margin-bottom: 1rem; }
.marca-secao .conversa .serifa { font-family: var(--serifa); font-style: italic; font-weight: 400; }
.marca-secao p.nota { color: var(--meio); max-width: 40rem; }

.simbolo-grade { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; margin-top: 2rem; }
.simbolo-cartao {
  border: 1px solid var(--fio); border-radius: 18px; background: var(--branco);
  display: grid; place-items: center; padding: 2.4rem 1rem 2rem; gap: 1.1rem;
}
.simbolo-cartao.escuro { background: var(--noite); border-color: transparent; }
.simbolo-cartao img { width: 84px; height: 84px; }
.simbolo-cartao img.mini { width: 40px; height: 40px; }
.simbolo-cartao figcaption { font-family: var(--mono); font-size: .64rem; letter-spacing: .14em; text-transform: uppercase; color: var(--meio); }
.simbolo-cartao.escuro figcaption { color: #93A4B8; }

.cores-grade { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; margin-top: 2rem; }
.cor {
  border-radius: 18px; border: 1px solid var(--fio); overflow: hidden; background: var(--branco);
}
.cor .bloco-cor { height: 92px; }
.cor dl { padding: .85rem 1rem 1rem; }
.cor dt { font-family: var(--display); font-weight: 600; font-size: .95rem; }
.cor dd { font-family: var(--mono); font-size: .72rem; color: var(--meio); margin-top: .15rem; }
.cor.larga { grid-column: 1 / -1; }
.cor.larga .bloco-cor { background: var(--grad); }

.tipo-linha { border: 1px solid var(--fio); border-radius: 18px; background: var(--branco); padding: 1.6rem 1.8rem; margin-top: 1rem; display: grid; gap: .3rem; }
.tipo-linha .amostra { font-size: clamp(1.6rem, 4vw, 2.6rem); line-height: 1.15; }
.tipo-linha .amostra.d { font-family: var(--display); font-weight: 700; letter-spacing: -.03em; }
.tipo-linha .amostra.s { font-family: var(--serifa); font-style: italic; }
.tipo-linha .amostra.t { font-family: var(--texto); font-size: 1.15rem; }
.tipo-linha .amostra.m { font-family: var(--mono); font-size: .95rem; letter-spacing: .06em; }
.tipo-linha figcaption { font-family: var(--mono); font-size: .64rem; letter-spacing: .14em; text-transform: uppercase; color: var(--meio); }

.regras { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; margin-top: 2rem; }
.regra { border: 1px solid var(--fio); border-radius: 18px; background: var(--branco); padding: 1.4rem 1.5rem; }
.regra h3 { font-family: var(--mono); font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; margin-bottom: .8rem; }
.regra.faz h3 { color: #0E7490; }
.regra.nao h3 { color: #B4232A; }
.regra ul { list-style: none; display: grid; gap: .55rem; }
.regra li { color: var(--meio); font-size: .95rem; padding-left: 1.2rem; position: relative; }
.regra.faz li::before { content: "✓"; position: absolute; left: 0; color: #0E7490; }
.regra.nao li::before { content: "✕"; position: absolute; left: 0; color: #B4232A; }

/* ============================================================
   CENTRAL — fechadura + sala com modos de visualização
   ============================================================ */
.portao { min-height: 100svh; display: grid; place-items: center; padding: 2rem; position: relative; z-index: 2; }
body.aberta .portao { display: none; }
.portao .caixa {
  width: min(400px, 92vw); background: var(--branco);
  border: 1px solid var(--fio); border-radius: 22px;
  padding: 2.6rem 2.2rem 2.2rem; text-align: center;
  box-shadow: 0 24px 60px rgba(16,26,45,.10);
}
.portao .caixa img { width: 84px; margin-bottom: 1.2rem; }
.portao h1 { font-family: var(--display); font-size: 1.5rem; font-weight: 600; letter-spacing: -.02em; }
.portao .dica { color: var(--meio); font-size: .92rem; margin: .4rem 0 1.6rem; }
.portao form { display: flex; flex-direction: column; gap: .8rem; }
.portao input {
  font: inherit; text-align: center; padding: .9rem 1rem; border-radius: 12px;
  border: 1px solid var(--fio); background: var(--papel); color: var(--tinta); outline: none;
  transition: border-color .4s ease, box-shadow .4s ease;
}
.portao input:focus { border-color: var(--ceu); box-shadow: 0 0 0 4px #D7F5FB; }
.portao button {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase;
  padding: .9rem 1rem; border-radius: 12px; border: none;
  background: var(--grad); color: #fff; cursor: pointer;
  transition: opacity .4s ease;
}
.portao button:hover { opacity: .88; }
.portao .erro { color: #B4232A; font-size: .85rem; min-height: 1.2em; }
.portao form.tremeu { animation: treme .45s ease; }
@keyframes treme { 25% { translate: -7px 0; } 50% { translate: 6px 0; } 75% { translate: -3px 0; } }

.central { display: none; }
body.aberta .central {
  display: block; position: relative; z-index: 2;
  max-width: 960px; margin-inline: auto;
  padding: clamp(6.5rem, 14vh, 8.5rem) clamp(1.25rem, 4vw, 2rem) 5rem;
}
.central-cabeca { display: flex; align-items: end; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.central h1 { font-family: var(--display); font-weight: 700; font-size: clamp(2rem, 5vw, 3rem); letter-spacing: -.03em; }
.central .sub { color: var(--meio); margin-top: .5rem; max-width: 32rem; }

/* seletor de modo — lista · grupos · grade */
.modos {
  display: inline-flex; gap: .25rem; padding: .3rem;
  background: var(--branco); border: 1px solid var(--fio); border-radius: 999px;
}
.modos button {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .12em; text-transform: uppercase;
  padding: .5rem .95rem; border: none; border-radius: 999px;
  background: none; color: var(--meio); cursor: pointer;
  transition: background .35s ease, color .35s ease;
}
.modos button.ativo { background: var(--tinta); color: var(--papel); }

#sala { margin-top: 2.4rem; }
.grupo-titulo {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--meio); margin: 2rem 0 .9rem;
  display: flex; align-items: center; gap: .8rem;
}
.grupo-titulo::after { content: ""; flex: 1; height: 1px; background: var(--fio); }

.link-cartao {
  display: flex; align-items: center; gap: .95rem;
  background: var(--branco); border: 1px solid var(--fio); border-radius: 16px;
  padding: 1.05rem 1.15rem;
  transition: transform .45s ease, border-color .45s ease, box-shadow .45s ease;
}
.link-cartao:hover { transform: translateY(-3px); border-color: #C7DDF7; box-shadow: 0 14px 34px rgba(29,78,216,.09); }
.link-cartao .icone {
  width: 40px; height: 40px; border-radius: 11px; flex: none;
  display: grid; place-items: center;
  background: linear-gradient(120deg, #E3FAFE, #E5EDFD); color: var(--royal);
}
.link-cartao b { display: block; font-weight: 600; font-size: .97rem; }
.link-cartao small { color: var(--meio); font-size: .84rem; }
.link-cartao.ponte { border-style: dashed; }

/* modo grade */
.modo-grade .grupo-links { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: .9rem; }
/* modo lista: linhas compactas, uma coluna */
.modo-lista .grupo-links { display: grid; gap: .55rem; }
.modo-lista .link-cartao { padding: .7rem 1rem; border-radius: 12px; }
.modo-lista .link-cartao .icone { width: 32px; height: 32px; border-radius: 8px; }
.modo-lista .link-cartao small { display: inline; margin-left: .5rem; }
.modo-lista .link-cartao b { display: inline; }
/* modo grupos: seções recolhíveis */
.modo-grupos details { border: 1px solid var(--fio); border-radius: 16px; background: var(--branco); margin-bottom: .8rem; overflow: hidden; }
.modo-grupos summary {
  cursor: pointer; list-style: none;
  font-family: var(--mono); font-size: .7rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--tinta); padding: 1.05rem 1.3rem;
  display: flex; justify-content: space-between; align-items: center;
}
.modo-grupos summary::after { content: "+"; font-size: 1rem; color: var(--meio); }
.modo-grupos details[open] summary::after { content: "–"; }
.modo-grupos .grupo-links { display: grid; gap: .55rem; padding: 0 1rem 1rem; }
.modo-grupos .grupo-titulo { display: none; }
.modo-grupos .link-cartao { border: none; background: var(--papel); }

#sair { cursor: pointer; }