/* estudo de layout — sistema de design
   tokens medidos do original: h1 72/72 -1.8px 700 · header 80px
   texto #1D161E · gray-50 #FBFBF9 · acento roxo · blob 600px blur(100px) */

:root {
  --accent: #7C3AED;
  --accent-deep: #4C287B;
  --accent-soft: #E6D5FF;

  --gray-50:  #FBFBF9;
  --gray-100: #F4F2F4;
  --gray-200: #E9E6E9;
  --gray-300: #D6D1D6;
  --gray-400: #A79FA7;
  --gray-500: #7C727C;
  --gray-600: #5B525B;
  --gray-700: #423A42;
  --gray-800: #2B232C;
  --gray-900: #1D161E;

  --bg: #FFFFFF;
  --fg: var(--gray-900);
  --muted: var(--gray-500);
  --line: rgba(29, 22, 30, 0.05);
  --line-strong: rgba(29, 22, 30, 0.10);
  --card: #FFFFFF;

  --header-h: 80px;
  --wrap: 1240px;
  --gap: 1.2rem;
  --radius: 12px;

  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif,
          "Apple Color Emoji", "Segoe UI Emoji";

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

:root.dark {
  --bg: var(--gray-900);
  --fg: var(--gray-400);
  --muted: var(--gray-500);
  --line: rgba(255, 255, 255, 0.06);
  --line-strong: rgba(255, 255, 255, 0.12);
  --card: #241D25;
  --accent: #A78BFA;
  --accent-soft: #3B2A5C;
}

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

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

body {
  min-height: 100dvh;
  margin: 0;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  font-family: var(--font);
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  transition: background-color .3s var(--ease), color .3s var(--ease);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 24px;
}

/* ── blob de gradiente no topo/direita ─────────────────── */
.blob {
  position: absolute;
  right: 0; top: 0;
  z-index: -10;
  overflow: hidden;
  pointer-events: none;
}
.blob i {
  display: block;
  width: 600px; height: 600px;
  transform: translate(66%, -66%);
  background: linear-gradient(to bottom left, var(--accent) 10%, transparent);
  border-radius: 9999px;
  filter: blur(100px);
  opacity: .5;
  animation: drift 18s var(--ease) infinite alternate;
}
@media (min-width: 1024px) {
  .blob i { transform: translate(50%, -50%); }
}
@keyframes drift {
  to { transform: translate(60%, -58%) scale(1.12); opacity: .38; }
}

/* ── cabeçalho ─────────────────────────────────────────── */
.header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(4px);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
}
.header .wrap {
  height: 100%;
  display: flex; align-items: center; gap: 28px;
}

.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 22px; letter-spacing: -.5px;
  color: var(--gray-900);
}
:root.dark .brand { color: var(--gray-50); }
.brand img {
  width: 28px; height: 28px;
  object-fit: contain;
  transition: transform .4s var(--ease);
}
.brand:hover img { transform: rotate(-8deg) scale(1.1); }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a, .nav .drop > button {
  position: relative;
  padding: 8px 14px;
  border: 0; border-radius: 8px;
  font: inherit; font-size: 15px; font-weight: 500;
  color: var(--gray-700);
  background: transparent;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 5px;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}
:root.dark .nav a, :root.dark .nav .drop > button { color: var(--gray-400); }
.nav a:hover, .nav .drop > button:hover,
.nav a.on, .nav .drop.on > button {
  background: var(--gray-100);
  color: var(--gray-900);
}
:root.dark .nav a:hover, :root.dark .nav .drop > button:hover,
:root.dark .nav a.on { background: rgba(255,255,255,.06); color: var(--gray-50); }

.drop { position: relative; }
.drop-menu {
  position: absolute; top: calc(100% + 8px); left: 0;
  min-width: 180px; padding: 6px;
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);
  opacity: 0; visibility: hidden;
  transform: translateY(-6px);
  transition: opacity .18s var(--ease), transform .18s var(--ease), visibility .18s;
}
.drop.on .drop-menu { opacity: 1; visibility: visible; transform: none; }
.drop-menu a { display: block; width: 100%; }

.spacer { margin-left: auto; }

.theme-btn {
  display: grid; place-items: center;
  width: 36px; height: 36px;
  border: 0; border-radius: 8px;
  background: transparent; color: var(--gray-500);
  cursor: pointer;
  transition: background-color .2s var(--ease), transform .3s var(--ease);
}
.theme-btn:hover { background: var(--gray-100); transform: rotate(25deg); }
:root.dark .theme-btn:hover { background: rgba(255,255,255,.06); }
.theme-btn .moon { display: none; }
:root.dark .theme-btn .sun { display: none; }
:root.dark .theme-btn .moon { display: block; }

.burger { display: none; }

/* ── main ──────────────────────────────────────────────── */
main { flex: 1; }

/* ── hero ──────────────────────────────────────────────── */
.hero { padding: 140px 0 60px; text-align: center; }

.hero h1 {
  margin: 0 auto;
  max-width: 15ch;
  font-size: clamp(40px, 7vw, 72px);
  line-height: 1;
  letter-spacing: -1.8px;
  font-weight: 700;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
:root.dark .hero h1 {
  background: linear-gradient(180deg, #C4B5FD 0%, #7C3AED 100%);
  -webkit-background-clip: text; background-clip: text;
}

.hero .sub {
  margin: 28px auto 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: 1.6;
  color: var(--gray-500);
}

.checks {
  margin-top: 34px;
  display: flex; flex-wrap: wrap;
  justify-content: center; gap: 10px 32px;
}
.check {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 15px; color: var(--gray-700);
}
:root.dark .check { color: var(--gray-400); }
.check svg {
  width: 18px; height: 18px;
  padding: 3px; border-radius: 9999px;
  background: #DCFCE7; color: #16A34A;
}
:root.dark .check svg { background: rgba(22,163,74,.18); }

/* ── grade de cartões ──────────────────────────────────── */
.grid {
  padding: 152px 0 120px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem var(--gap);
}
@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr; padding: 64px 0 80px; }
}

.card { display: block; }
.card .shot {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease);
  display: grid; place-items: center;
  position: relative;
}
.card:hover .shot {
  transform: translateY(-6px) scale(1.014);
  box-shadow: 0 30px 40px -8px rgb(0 0 0 / .18), 0 12px 14px -6px rgb(0 0 0 / .12);
}
.card .shot::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(120% 80% at 30% 0%, rgba(255,255,255,.35), transparent 60%);
  opacity: 0; transition: opacity .45s var(--ease);
}
.card:hover .shot::after { opacity: 1; }

/* placeholders de mídia — gradientes próprios, no lugar da arte do original */
.ph-a { background: linear-gradient(115deg, #4338CA 0%, #7C3AED 38%, #C084FC 55%, #1E1B2E 100%); }
.ph-b { background: linear-gradient(120deg, #FDE68A 0%, #FBBF24 30%, #F87171 62%, #C026D3 100%); }
.ph-c { background: linear-gradient(135deg, #A7F3D0 0%, #34D399 45%, #0F766E 100%); }
.ph-lbl {
  position: relative; z-index: 1;
  font-size: clamp(28px, 4.4vw, 54px); font-weight: 700; letter-spacing: -1px;
  color: rgba(255,255,255,.92);
  text-shadow: 0 2px 24px rgba(0,0,0,.25);
}

.card h3 {
  margin: 20px 0 6px;
  font-size: 15px; font-weight: 600; letter-spacing: -.2px;
  color: var(--gray-900);
}
:root.dark .card h3 { color: var(--gray-50); }
.card p {
  margin: 0;
  font-size: 15px; line-height: 1.55;
  color: var(--gray-500);
}

/* ── layout de docs (páginas de tema) ──────────────────── */
.docs {
  display: grid;
  grid-template-columns: 328px 1fr;
  align-items: start;
}
@media (max-width: 900px) { .docs { grid-template-columns: 1fr; } }

.side {
  position: sticky; top: var(--header-h);
  align-self: start;
  padding: 64px 24px 64px 40px;
  border-right: 1px solid var(--line);
  min-height: calc(100dvh - var(--header-h));
}
@media (max-width: 900px) {
  .side {
    position: static; min-height: 0;
    border-right: 0; border-bottom: 1px solid var(--line);
    padding: 24px;
  }
}

.trail { list-style: none; margin: 0; padding: 0; }
.trail li { position: relative; }
.trail a {
  display: block;
  padding: 8px 0 8px 30px;
  font-size: 15px; color: var(--gray-500);
  transition: color .2s var(--ease), transform .2s var(--ease);
}
.trail a::before {
  content: "";
  position: absolute; left: 8px; top: 50%;
  width: 14px; height: 1px;
  background: var(--gray-300);
  transform: translateY(-50%);
  transition: background-color .2s var(--ease), width .2s var(--ease);
}
.trail a:hover { color: var(--gray-900); transform: translateX(2px); }
:root.dark .trail a:hover { color: var(--gray-50); }
.trail a.on { color: var(--accent); font-weight: 500; }
.trail a.on::before {
  left: 12px; width: 8px; height: 8px;
  border-radius: 9999px;
  background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

.doc {
  padding: 64px 40px 96px;
  max-width: 780px;
}
@media (max-width: 900px) { .doc { padding: 40px 24px 72px; } }

.doc h1 {
  margin: 0 0 26px;
  font-size: 36px; font-weight: 800; letter-spacing: -.9px; line-height: 1.25;
  color: var(--gray-900);
}
:root.dark .doc h1 { color: var(--gray-50); }
.doc h2 {
  margin: 44px 0 14px;
  font-size: 22px; font-weight: 700; letter-spacing: -.4px;
  color: var(--gray-900);
}
:root.dark .doc h2 { color: var(--gray-50); }
.doc p { margin: 0 0 18px; font-size: 17px; line-height: 1.65; color: var(--gray-600); }
:root.dark .doc p { color: var(--gray-400); }
.doc ul { margin: 0 0 18px; padding: 0; list-style: none; }
.doc ul li {
  position: relative;
  padding: 0 0 14px 32px;
  font-size: 17px; line-height: 1.65; color: var(--gray-600);
}
:root.dark .doc ul li { color: var(--gray-400); }
.doc ul li::before {
  content: "";
  position: absolute; left: 10px; top: 11px;
  width: 4px; height: 4px; border-radius: 9999px;
  background: var(--gray-300);
}

.pager {
  margin-top: 56px;
  display: flex; justify-content: flex-end;
}
.pager a {
  min-width: 350px;
  padding: 14px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  display: flex; align-items: center; gap: 14px;
  transition: border-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}
.pager a:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -8px color-mix(in srgb, var(--accent) 40%, transparent);
}
.pager .lbl { flex: 1; }
.pager .lbl small { display: block; font-size: 13px; color: var(--gray-500); }
.pager .lbl strong {
  display: block; margin-top: 2px;
  font-size: 15px; font-weight: 600; color: var(--gray-900);
}
:root.dark .pager .lbl strong { color: var(--gray-50); }
.pager .arw { color: var(--gray-400); transition: transform .25s var(--ease); }
.pager a:hover .arw { transform: translateX(4px); }
@media (max-width: 620px) { .pager a { min-width: 0; width: 100%; } }

/* ── página simples (contato / termos / changelog) ─────── */
.page { padding: 90px 0 110px; }
.page .narrow { max-width: 720px; margin-inline: auto; }
.page h1 {
  margin: 0 0 14px;
  font-size: clamp(32px, 5vw, 44px); font-weight: 800; letter-spacing: -1.1px;
  color: var(--gray-900);
}
:root.dark .page h1 { color: var(--gray-50); }
.page .lede { margin: 0 0 40px; font-size: 17px; line-height: 1.6; color: var(--gray-500); }
.page h2 {
  margin: 40px 0 12px;
  font-size: 20px; font-weight: 700; letter-spacing: -.3px;
  color: var(--gray-900);
}
:root.dark .page h2 { color: var(--gray-50); }
.page p { margin: 0 0 16px; font-size: 16px; line-height: 1.7; color: var(--gray-600); }
:root.dark .page p { color: var(--gray-400); }

/* formulário */
.form { display: grid; gap: 16px; }
.field { display: grid; gap: 7px; }
.field label { font-size: 14px; font-weight: 500; color: var(--gray-700); }
:root.dark .field label { color: var(--gray-400); }
.field input, .field textarea {
  width: 100%;
  padding: 12px 14px;
  font: inherit; font-size: 15px;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field textarea:focus {
  outline: 0;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent);
}
.btn {
  justify-self: start;
  padding: 12px 26px;
  border: 0; border-radius: 9999px;
  font: inherit; font-size: 15px; font-weight: 600;
  color: #fff;
  background: var(--accent);
  cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), filter .2s var(--ease);
}
.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.06);
  box-shadow: 0 12px 22px -8px color-mix(in srgb, var(--accent) 65%, transparent);
}
.btn:active { transform: translateY(0); }
.sent { font-size: 15px; color: #16A34A; }

/* changelog */
.log { border-left: 1px solid var(--line-strong); padding-left: 28px; }
.log .rel { position: relative; padding-bottom: 44px; }
.log .rel::before {
  content: "";
  position: absolute; left: -33px; top: 6px;
  width: 9px; height: 9px; border-radius: 9999px;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--bg), 0 0 0 6px color-mix(in srgb, var(--accent) 20%, transparent);
}
.log .ver {
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 10px;
}
.log .tag {
  padding: 3px 10px;
  border-radius: 9999px;
  font-size: 12px; font-weight: 600;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}
.log .date { font-size: 13px; color: var(--gray-500); }
.log h3 {
  margin: 0 0 8px;
  font-size: 18px; font-weight: 700; letter-spacing: -.3px;
  color: var(--gray-900);
}
:root.dark .log h3 { color: var(--gray-50); }

/* ── rodapé ────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--line);
  padding: 26px 0;
  padding-bottom: calc(26px + env(safe-area-inset-bottom));
}
.footer .wrap {
  display: flex; align-items: center; gap: 16px;
}
.footer .cr { font-size: 14px; color: var(--gray-500); }
.footer nav {
  margin-inline: auto;
  display: flex; gap: 26px;
}
.footer nav a {
  font-size: 14px; color: var(--gray-500);
  transition: color .2s var(--ease);
}
.footer nav a:hover { color: var(--gray-900); }
:root.dark .footer nav a:hover { color: var(--gray-50); }
@media (max-width: 700px) {
  .footer .wrap { flex-direction: column; gap: 14px; text-align: center; }
  .footer nav { margin: 0; }
}

/* ── animação de entrada ───────────────────────────────── */
.up {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.up.in { opacity: 1; transform: none; }

/* ── mobile: menu lateral (gaveta) ─────────────────────── */
@media (max-width: 780px) {
  /* backdrop-filter faz do header um containing block p/ filhos fixed —
     prenderia a gaveta dentro dos 80px. fundo sólido no lugar. */
  .header {
    backdrop-filter: none;
    background: var(--bg);
  }

  .burger {
    display: grid; place-items: center;
    width: 36px; height: 36px;
    border: 0; border-radius: 8px;
    background: transparent; color: var(--gray-700);
    cursor: pointer;
  }
  :root.dark .burger { color: var(--gray-400); }

  .nav {
    position: fixed; inset: 0 auto 0 0;
    z-index: 60;
    width: min(78vw, 300px);
    padding: calc(24px + env(safe-area-inset-top)) 20px 24px;
    flex-direction: column;
    align-items: stretch; gap: 6px;
    background: var(--card);
    border-right: 1px solid var(--line-strong);
    transform: translateX(-100%);
    transition: transform .34s var(--ease);
    overflow-y: auto;
  }
  .nav.open { transform: none; }
  .nav a, .nav .drop > button { width: 100%; padding: 12px 14px; font-size: 16px; }
  .drop-menu {
    position: static; opacity: 1; visibility: visible; transform: none;
    border: 0; box-shadow: none; padding: 0 0 0 12px;
    display: none;
  }
  .drop.on .drop-menu { display: block; }

  /* abaixo do header (z-50): a gaveta vive dentro do stacking context
     do header, então o scrim precisa ficar sob ele p/ não tingir a gaveta. */
  .scrim {
    position: fixed; inset: 0; z-index: 40;
    background: rgba(0,0,0,.4);
    opacity: 0; visibility: hidden;
    transition: opacity .3s var(--ease), visibility .3s;
  }
  .scrim.on { opacity: 1; visibility: visible; }

  .hero { padding: 90px 0 40px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .up { opacity: 1; transform: none; }
}