/* notai.ia.br: mesma identidade das Configurações do Notai (fundo escuro, verde-água, Space Grotesk + DM Sans).
   Home chamativa; política e termos como páginas de leitura. */

:root {
  color-scheme: dark;
  --bg: #0b0f10;
  --surface: #11171a;
  --surface-2: #161e22;
  --text: #e8eef0;
  --text-2: #a9b4b8;
  --muted: #76838a;
  --line: rgba(255, 255, 255, .07);
  --line-2: rgba(255, 255, 255, .13);
  --brand: #37d2c4;
  --brand-2: #b8f56a;
  --brand-soft: rgba(55, 210, 196, .12);
  --brand-ink: #062a2a;
  --warn: #ffc864;
  --font-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-body: "DM Sans", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --radius: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font-body); font-size: 16px; line-height: 1.6; overflow-x: hidden; }
a { color: var(--brand); }
h1, h2, h3 { font-family: var(--font-display); margin: 0; letter-spacing: -.02em; }
h1 { font-size: clamp(2.5rem, 6.4vw, 4.6rem); line-height: 1.03; font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); line-height: 1.15; font-weight: 700; }
h3 { font-size: 1.12rem; line-height: 1.3; font-weight: 600; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }

/* fundo: brilho suave no alto, sem animação pesada */
.glow { position: fixed; inset: 0; z-index: -1; pointer-events: none; background:
  radial-gradient(900px 480px at 50% -10%, rgba(55, 210, 196, .14), transparent 62%),
  radial-gradient(700px 400px at 100% 30%, rgba(184, 245, 106, .06), transparent 60%); }

/* ───────── cabeçalho ───────── */
.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px clamp(16px, 5vw, 56px); background: rgba(11, 15, 16, .8); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { text-decoration: none; color: var(--text-2); font-weight: 500; font-size: 14.5px; }
.nav a:hover { color: var(--text); }
.nav .cta { padding: 7px 16px; border-radius: 999px; background: var(--brand); color: var(--brand-ink); font-weight: 700; }
.nav .cta:hover { color: var(--brand-ink); box-shadow: 0 8px 22px -10px rgba(55, 210, 196, .9); }

main { max-width: 1120px; margin: 0 auto; padding: 0 clamp(16px, 5vw, 56px) 40px; }
section { margin: 0 0 clamp(64px, 10vw, 120px); }
.eyebrow { display: inline-block; margin-bottom: 12px; font-size: 12px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--brand); }
.section-head { max-width: 660px; margin-bottom: 28px; }
.section-head p { color: var(--text-2); margin: 10px 0 0; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }

/* ───────── botões ───────── */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 999px; font-family: var(--font-display); font-weight: 600; text-decoration: none; border: 1px solid transparent; transition: transform .2s var(--ease), box-shadow .2s, border-color .2s; }
.btn-primary { background: linear-gradient(90deg, var(--brand), #6fe0a9 60%, var(--brand-2)); color: var(--brand-ink); box-shadow: 0 10px 30px -12px rgba(55, 210, 196, .7); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -14px rgba(55, 210, 196, .9); }
.btn-ghost { color: var(--text); border-color: var(--line-2); background: var(--surface); }
.btn-ghost:hover { border-color: var(--brand); }
.btn .arrow { transition: transform .2s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* ───────── destaque ───────── */
.hero { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(28px, 5vw, 64px); align-items: center; padding-top: clamp(48px, 9vw, 104px); }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px; background: var(--surface); border: 1px solid var(--line-2); font-size: 12.5px; font-weight: 600; color: var(--text-2); margin-bottom: 22px; }
.pill-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand-2); box-shadow: 0 0 0 4px rgba(184, 245, 106, .18); }
.grad { background: linear-gradient(90deg, var(--brand), var(--brand-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: 1.12rem; color: var(--text-2); max-width: 560px; margin: 22px 0 28px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.note { margin: 14px 0 0; font-size: 13.5px; color: var(--muted); }
.note strong { color: var(--warn); font-weight: 600; }
.proof { list-style: none; display: grid; grid-template-columns: repeat(4, auto); gap: 18px 28px; padding: 22px 0 0; margin: 30px 0 0; border-top: 1px solid var(--line); }
.proof li { display: flex; flex-direction: column; }
.proof strong { font-family: var(--font-display); font-size: 1.9rem; line-height: 1; }
.proof span { font-size: 12.5px; color: var(--muted); margin-top: 6px; }

.sample { margin: 0; background: linear-gradient(180deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .02)); border: 1px solid var(--line-2); border-radius: var(--radius); box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .8), 0 0 80px -30px rgba(55, 210, 196, .35); overflow: hidden; transform: perspective(1200px) rotateY(-6deg) rotateX(2deg); transition: transform .5s var(--ease); }
.sample:hover { transform: none; }
.sample figcaption { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--line); font-size: 12.5px; color: var(--muted); background: rgba(0, 0, 0, .25); }
.win { display: inline-flex; gap: 5px; }
.win i { width: 9px; height: 9px; border-radius: 50%; background: var(--line-2); }
.sample-name { font-weight: 600; color: var(--text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sample-tag { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px; background: rgba(94, 230, 164, .12); color: #5ee6a4; font-weight: 600; white-space: nowrap; }
.live-dot { width: 6px; height: 6px; border-radius: 50%; background: #5ee6a4; animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .35; } }
.sample-body { padding: 14px 16px 16px; font-family: var(--font-mono); font-size: 12.5px; line-height: 1.5; }
.line { display: grid; grid-template-columns: 62px 1fr; column-gap: 10px; padding: 7px 0; border-bottom: 1px dashed var(--line); }
.line:last-child { border-bottom: 0; }
.line .t { color: var(--muted); }
.line .who { color: var(--brand); font-weight: 500; grid-column: 2; }
.line .txt { grid-column: 2; color: var(--text-2); }
.line.ev { grid-template-columns: 1fr; color: var(--brand-2); text-align: center; font-size: 11.5px; }

/* ───────── como funciona e recursos ───────── */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.steps li { padding: 24px 22px; }
.step-n { display: inline-block; font-family: var(--font-display); font-size: 13px; font-weight: 700; letter-spacing: .1em; color: var(--brand-ink); background: linear-gradient(90deg, var(--brand), var(--brand-2)); padding: 4px 10px; border-radius: 999px; margin-bottom: 16px; }
.steps h3, .bento h3 { margin-bottom: 8px; }
.steps p, .bento p { margin: 0; color: var(--text-2); }
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.bento article { padding: 22px 24px; }
.bento .span-2 { grid-column: span 2; }
.bento .accent { background: linear-gradient(135deg, rgba(55, 210, 196, .12), rgba(184, 245, 106, .05)); }
.icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line-2); font-size: 18px; margin-bottom: 14px; }

/* ───────── instalar ───────── */
.install { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; padding: clamp(28px, 5vw, 48px); border-radius: 24px; border: 1px solid var(--line-2); background: radial-gradient(700px 300px at 0% 0%, rgba(55, 210, 196, .18), transparent 60%), var(--surface); }
.install ol { margin: 14px 0 0; padding-left: 20px; color: var(--text-2); }
.install li { margin: 0 0 8px; }
.install li strong { color: var(--text); }
.ipnet { align-self: start; padding: 18px 20px; border-radius: 14px; border: 1px solid rgba(255, 200, 100, .35); background: rgba(255, 200, 100, .07); font-size: 14.5px; color: var(--text-2); }
.ipnet h3 { color: var(--warn); margin-bottom: 8px; font-size: 1rem; }
.ipnet p { margin: 0 0 8px; }

/* ───────── perguntas ───────── */
.faq-list { display: grid; gap: 10px; }
.faq details { padding: 14px 20px; }
.faq summary { font-family: var(--font-display); font-size: 1.02rem; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; cursor: pointer; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--brand); font-size: 1.4rem; line-height: 1; transition: transform .25s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { margin: 10px 0 2px; color: var(--text-2); max-width: 760px; }

/* ───────── páginas de leitura (política, termos) ───────── */
.doc { max-width: 760px; margin: 0 auto; padding: clamp(36px, 6vw, 64px) 0 24px; }
.doc h1 { font-size: clamp(2rem, 4.6vw, 3rem); margin-bottom: 8px; }
.doc .meta { color: var(--muted); font-size: 14px; margin: 0 0 28px; }
.doc h2 { font-size: 1.25rem; margin: 34px 0 10px; padding-top: 22px; border-top: 1px solid var(--line); }
.doc p, .doc li { color: var(--text-2); }
.doc li { margin: 6px 0; }
.doc strong { color: var(--text); }
.doc .summary { padding: 18px 22px; border-radius: 14px; background: var(--brand-soft); border: 1px solid rgba(55, 210, 196, .3); }
.doc .summary ul { margin: 0; padding-left: 20px; }

/* ───────── rodapé ───────── */
.site-footer { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; max-width: 1120px; margin: 0 auto; padding: 20px clamp(16px, 5vw, 56px) 36px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.site-footer nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--brand); }

/* ───────── responsivo e acessibilidade ───────── */
@media (max-width: 900px) {
  .hero, .install { grid-template-columns: 1fr; }
  .sample { transform: none; }
  .steps, .bento { grid-template-columns: 1fr; }
  .bento .span-2 { grid-column: auto; }
  .proof { grid-template-columns: 1fr 1fr; }
  .nav a:not(.cta) { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .sample { transform: none; }
}