/* Base do site — Dra. Yunna Hartmann (sistema derivado do hero C) */

@font-face { font-family: "Erode"; src: url("../fonts/erode-300.woff2") format("woff2"); font-weight: 300; font-style: normal; font-display: swap; }
@font-face { font-family: "Erode"; src: url("../fonts/erode-400.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Erode"; src: url("../fonts/erode-500.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Erode"; src: url("../fonts/erode-300i.woff2") format("woff2"); font-weight: 300; font-style: italic; font-display: swap; }

:root {
  /* cores amostradas da foto (sala, disco de luz, poltrona) + dourado do logo */
  --grafite-0: #0c0d0f;
  --grafite: #121316;
  --grafite-2: #1d1f24;
  --luz: #f3e6cf;
  --luz-2: #e9d3ad;
  --bege: #cbbfae;
  --ouro: #c9a25a;
  --ouro-claro: #dcbd7f;
  --tinta: #efe7da;
  --tinta-2: #b9ae9e;

  --f-titulo: "Erode", "Rufina", Georgia, serif;
  --f-tecnica: "Michroma", "Helvetica Neue", Arial, sans-serif;

  --margem: clamp(1.25rem, 4.4vw, 4.5rem);
  --tx-w: min(31rem, 34vw);
  --e-1: .5rem;
  --e-2: 1rem;
  --e-3: 1.5rem;
  --e-4: 2.25rem;

  --t-titulo: clamp(2.15rem, min(3.95vw, 6.6vh), 3.9rem);
  --t-apoio: clamp(1.05rem, 1.25vw, 1.2rem);
  --t-rotulo: .6rem;

  --curva: cubic-bezier(.2, .75, .15, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--grafite); }
body {
  margin: 0;
  background: var(--grafite);
  color: var(--tinta);
  font-family: var(--f-titulo);
  font-size: 1.125rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
/* granulado único, fixo */
body::after {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 50;
  opacity: .055;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .9 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}
a { color: inherit; }
img { display: block; max-width: 100%; }


@font-face { font-family: "Erode"; src: url("../fonts/erode-400i.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }

:root {
  /* superfície clara: papel de projeto */
  --papel: #f2ebe0;
  --papel-2: #e8dfd0;
  --papel-3: #ddd2bf;
  --nanquim: #1b1c20;      /* texto sobre papel */
  --nanquim-2: #4a463f;    /* texto de apoio sobre papel (AA) */
  --ouro-tinta: #7d5f24;   /* dourado legível sobre papel (AA ≥ 4.5) */
  --verde-zap: #1f7a4a;

  --t-mini: .875rem;        /* menor rótulo permitido (14 px) */
  --t-corpo: clamp(1.0625rem, 1.05vw + .6rem, 1.1875rem);
  --t-h2: clamp(2.1rem, 4.2vw, 3.9rem);
  --t-h3: clamp(1.35rem, 1.7vw, 1.75rem);
  --secao-y: clamp(5.5rem, 11vw, 10rem);
  --coluna: min(76rem, 100% - 2 * var(--margem));
  --raio: 2px;
}

:is(a, button):focus-visible { outline: 2px solid var(--ouro-claro); outline-offset: 3px; }
@keyframes sobe { from { opacity: 0; transform: translateY(14px); } }
@keyframes aparece { from { opacity: 0; } }
@keyframes desenha { to { stroke-dashoffset: 0; } }

/* ───────── superfícies das seções ───────── */
.wf-secao { position: relative; isolation: isolate; padding: var(--secao-y) 0; overflow: clip; }
.wf-noite { background: var(--grafite); color: var(--tinta); }
.wf-noite-2 { background: var(--grafite-0); color: var(--tinta); }
.wf-papel { background: var(--papel); color: var(--nanquim); }
.wf-papel ::selection { background: #e9d3ad; }
.wf-coluna { width: var(--coluna); margin-inline: auto; }

/* papel de projeto: quadrícula que esmaece para as bordas */
.wf-quadricula::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(to right, currentColor 1px, transparent 1px), linear-gradient(to bottom, currentColor 1px, transparent 1px);
  background-size: 24px 24px; opacity: .07;
  -webkit-mask-image: radial-gradient(closest-side, #000 30%, transparent 100%);
  mask-image: radial-gradient(closest-side, #000 30%, transparent 100%);
}
.wf-papel.wf-quadricula::before { color: #8a7a5e; opacity: .16; }

/* malha de seção escura (mesma receita do hero) */
.wf-malha { position: absolute; inset: 0; z-index: -2; overflow: hidden; pointer-events: none; }
.wf-malha i { position: absolute; border-radius: 50%; animation: wf-deriva 33s ease-in-out infinite alternate; will-change: transform; }
@keyframes wf-deriva { to { transform: translate3d(6vw, -5vh, 0) scale(1.1); } }

/* ───────── carimbo de prancha (título de seção) ───────── */
.wf-carimbo {
  display: inline-grid; grid-auto-flow: column; align-items: stretch;
  border: 1px solid color-mix(in oklab, currentColor 28%, transparent);
  font-family: var(--f-tecnica); font-size: var(--t-mini); letter-spacing: .14em; text-transform: uppercase;
  line-height: 1.2; margin: 0 0 clamp(1.5rem, 3vw, 2.5rem);
}
.wf-carimbo > span { padding: .6rem .9rem .65rem; border-right: 1px solid color-mix(in oklab, currentColor 22%, transparent); }
.wf-carimbo > span:last-child { border-right: 0; }
.wf-carimbo b { font-weight: 400; color: var(--ouro-claro); }
.wf-papel .wf-carimbo b { color: var(--ouro-tinta); }
.wf-noite .wf-carimbo, .wf-noite-2 .wf-carimbo { color: var(--tinta-2); }
.wf-papel .wf-carimbo { color: var(--nanquim-2); }

.wf-h2 { font-family: var(--f-titulo); font-weight: 300; font-size: var(--t-h2); line-height: 1.04; letter-spacing: -.015em; margin: 0; text-wrap: balance; }
.wf-h2 .luz { font-weight: 400; color: var(--luz-2); }
.wf-papel .wf-h2 .luz { color: var(--ouro-tinta); }
.wf-h3 { font-family: var(--f-titulo); font-weight: 400; font-size: var(--t-h3); line-height: 1.2; margin: 0; }
.wf-texto { font-size: var(--t-corpo); font-weight: 300; line-height: 1.6; color: var(--tinta-2); max-width: 36rem; }
.wf-papel .wf-texto { font-weight: 400; color: var(--nanquim-2); }
.wf-rotulo { font-family: var(--f-tecnica); font-size: var(--t-mini); letter-spacing: .14em; text-transform: uppercase; line-height: 1.35; }
.wf-citacao { font-family: var(--f-titulo); font-style: italic; font-weight: 300; }

/* botões */
.wf-botao {
  display: inline-flex; align-items: center; gap: .85rem; min-height: 48px;
  padding: 1rem 1.5rem 1rem 1.6rem; border-radius: 999px;
  background: var(--luz); color: var(--grafite);
  font-family: var(--f-tecnica); font-size: .75rem; letter-spacing: .16em; text-transform: uppercase; text-decoration: none;
  box-shadow: 0 0 0 1px #f3e6cf, 0 14px 40px -12px #e9d3ad66;
  transition: background-color .35s, box-shadow .35s, transform .35s var(--curva);
}
.wf-botao svg { width: 1.2rem; height: 1.2rem; fill: currentColor; }
.wf-botao:hover { background: var(--ouro-claro); transform: translateY(-2px); }
.wf-papel .wf-botao { background: var(--nanquim); color: var(--papel); box-shadow: 0 14px 34px -14px #1b1c2088; }
.wf-papel .wf-botao:hover { background: #2c2d33; }
.wf-link { display: inline-flex; align-items: center; gap: .45rem; min-height: 48px; font-family: var(--f-tecnica); font-size: var(--t-mini); letter-spacing: .14em; text-transform: uppercase; text-decoration: none; border-bottom: 1px solid color-mix(in oklab, var(--ouro) 60%, transparent); }

/* ───────── traço técnico que se desenha ao entrar ───────── */
[data-desenho] .wf-traco { stroke-dasharray: 1; stroke-dashoffset: 1; }
[data-desenho].on .wf-traco { animation: desenha var(--dur, 1.4s) var(--curva) var(--atraso, 0s) forwards; }
svg path[pathLength] { vector-effect: none !important; }

/* ───────── revelação na rolagem ───────── */
.js [data-rev] { opacity: 0; transform: translateY(18px); transition: opacity 1s ease, transform 1.1s var(--curva); transition-delay: var(--rd, 0s); }
.js [data-rev].on { opacity: 1; transform: none; }

/* ───────── WhatsApp flutuante (celular) ───────── */
.wf-zap {
  position: fixed; right: 1rem; bottom: 1rem; z-index: 40;
  display: none; align-items: center; gap: .6rem; min-height: 52px; padding: .85rem 1.15rem;
  border-radius: 999px; background: var(--luz); color: var(--grafite); text-decoration: none;
  font-family: var(--f-tecnica); font-size: .75rem; letter-spacing: .14em; text-transform: uppercase;
  box-shadow: 0 12px 30px -10px #000c, 0 0 0 1px #c9a25a66;
  opacity: 0; transform: translateY(20px); transition: opacity .4s, transform .5s var(--curva);
}
.wf-zap svg { width: 1.25rem; height: 1.25rem; fill: currentColor; }
.wf-zap.on { opacity: 1; transform: none; }
@media (max-width: 900px) { .wf-zap { display: inline-flex; } }

/* movimento reduzido: tudo pronto, sem deriva */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .traco, .wf-traco { stroke-dashoffset: 0 !important; }
  .js [data-rev] { opacity: 1; transform: none; }
}