/* ============================================================
   Sinti Digital — Design System
   Base dark editorial · acento verde + gradiente azul→roxo
   Tipografia: Sora (display) + Manrope (corpo)
   ============================================================ */

@import url("../fonts/fonts.css");

/* ---------- Tokens ---------- */
:root {
  /* superfícies */
  --bg: #0a0a0a;
  --bg-elev: #101012;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.18);

  /* texto */
  --text: #fafafa;
  --text-max: #ffffff;
  --muted: #a7a7a0;
  --faint: #74746e;

  /* marca */
  --green: #19e38b;
  --green-deep: #10c574;
  --green-soft: rgba(25, 227, 139, 0.12);
  --green-glow: rgba(25, 227, 139, 0.22);
  --on-green: #05140d;
  --grad: linear-gradient(115deg, #24c9ef 0%, #4aa8ff 42%, #8a63f2 100%);
  --grad-soft: linear-gradient(115deg, rgba(36,201,239,0.16), rgba(138,99,242,0.16));

  /* raios */
  --r-pill: 999px;
  --r-lg: 24px;
  --r-md: 16px;
  --r-sm: 12px;

  /* medidas */
  --maxw: 1180px;
  --maxw-wide: 1320px;
  --gutter: clamp(1.15rem, 4vw, 2.5rem);

  /* tipografia */
  --font-display: "Sora", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;

  /* sombras */
  --shadow-card: 0 1px 0 rgba(255,255,255,0.04) inset, 0 24px 60px -30px rgba(0,0,0,0.9);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 1rem;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }
ul { list-style: none; padding: 0; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--green); color: var(--on-green); }

/* ---------- Atmosfera de fundo ---------- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(60% 46% at 12% -4%, rgba(25, 227, 139, 0.13), transparent 60%),
    radial-gradient(52% 42% at 104% 14%, rgba(138, 99, 242, 0.13), transparent 62%),
    radial-gradient(46% 40% at 50% 116%, rgba(36, 201, 239, 0.08), transparent 60%);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.028;
  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='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.container-wide { max-width: var(--maxw-wide); }
.section { padding-block: clamp(4.5rem, 10vw, 8rem); position: relative; }
.section-tight { padding-block: clamp(3rem, 6vw, 4.5rem); }
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--border), transparent); border: 0; }

/* ---------- Tipografia ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--green);
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 12px var(--green-glow);
}
.eyebrow--muted { color: var(--muted); }
.eyebrow--muted::before { background: var(--muted); box-shadow: none; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.04; letter-spacing: -0.02em; color: var(--text-max); }
.display {
  font-weight: 800;
  font-size: clamp(2.6rem, 6.5vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
}
h2.section-title { font-size: clamp(2rem, 4.2vw, 3.15rem); letter-spacing: -0.03em; }
h3 { font-size: 1.3rem; letter-spacing: -0.015em; }
.lead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--muted); line-height: 1.62; }
.muted { color: var(--muted); }
.accent { color: var(--green); }
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.balance { text-wrap: balance; }
.measure { max-width: 40ch; }
.measure-lg { max-width: 58ch; }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5em;
  padding: 0.85em 1.5em;
  border-radius: var(--r-pill);
  font-family: var(--font-display);
  font-weight: 600; font-size: 0.95rem; letter-spacing: -0.01em;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--green); color: var(--on-green); box-shadow: 0 10px 30px -12px var(--green-glow); }
.btn-primary:hover { background: #23f39a; box-shadow: 0 16px 40px -14px var(--green-glow); }
.btn-ghost { border: 1px solid var(--border-strong); color: var(--text); background: var(--surface); backdrop-filter: blur(8px); }
.btn-ghost:hover { border-color: var(--green); color: var(--text-max); }
.btn-lg { padding: 1.05em 2em; font-size: 1.02rem; }
.link-arrow { color: var(--green); font-weight: 600; display: inline-flex; align-items: center; gap: 0.4em; }
.link-arrow svg { transition: transform 0.25s var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ---------- Cards de vidro ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: clamp(1.4rem, 2.5vw, 2rem);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--surface-2); }
.card-icon {
  width: 46px; height: 46px; border-radius: var(--r-sm);
  display: grid; place-items: center;
  background: var(--green-soft); color: var(--green);
  border: 1px solid var(--border);
  margin-bottom: 1.1rem;
}

/* ---------- Grid ---------- */
.grid { display: grid; gap: 1.15rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* ---------- Nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), backdrop-filter 0.3s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.scrolled { background: rgba(10, 10, 10, 0.72); backdrop-filter: blur(14px) saturate(160%); border-bottom-color: var(--border); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.nav__links { display: flex; align-items: center; gap: 2rem; }
.nav__links a { font-size: 0.92rem; color: var(--muted); font-weight: 500; transition: color 0.2s; }
.nav__links a:hover { color: var(--text-max); }
.nav__cta { display: flex; align-items: center; gap: 1rem; }
.nav__toggle { display: none; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; color: var(--text-max); font-size: 1.12rem; }
.brand__mark { width: 30px; height: 30px; }
.brand small { font-weight: 500; font-size: 0.62rem; letter-spacing: 0.28em; color: var(--muted); text-transform: uppercase; }
@media (max-width: 820px) {
  .nav__links { display: none; }
  .nav__links.open {
    display: flex; flex-direction: column; align-items: flex-start; gap: 1.25rem;
    position: absolute; top: 72px; left: 0; right: 0;
    background: rgba(10,10,10,0.96); backdrop-filter: blur(14px);
    padding: 1.5rem var(--gutter) 2rem; border-bottom: 1px solid var(--border);
  }
  .nav__toggle { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: var(--r-sm); border: 1px solid var(--border); }
  .nav__cta .btn-ghost { display: none; }
}

/* ---------- Hero ---------- */
.hero { position: relative; padding-top: clamp(8rem, 16vh, 11rem); padding-bottom: clamp(4rem, 9vw, 7rem); overflow: hidden; }
.hero__glow {
  position: absolute; z-index: -1; border-radius: 50%; filter: blur(90px);
  width: 520px; height: 520px; background: var(--green-glow); opacity: 0.5;
  top: -120px; left: -80px; pointer-events: none;
}
.hero__glow--2 { background: rgba(138,99,242,0.28); left: auto; right: -120px; top: 40px; width: 460px; height: 460px; }
.hero__grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
@media (max-width: 940px) { .hero__grid { grid-template-columns: 1fr; } }
.hero p.lead { margin-top: 1.5rem; max-width: 48ch; }
.hero__actions { margin-top: 2.25rem; display: flex; flex-wrap: wrap; gap: 0.9rem; }

/* chips de métrica */
.metrics { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 2.5rem; }
.chip {
  display: inline-flex; flex-direction: column;
  padding: 0.85rem 1.15rem; border-radius: var(--r-md);
  background: var(--surface); border: 1px solid var(--border); backdrop-filter: blur(8px);
}
.chip b { font-family: var(--font-display); font-weight: 800; font-size: 1.35rem; letter-spacing: -0.03em; color: var(--text-max); }
.chip span { font-size: 0.76rem; color: var(--muted); letter-spacing: 0.02em; }

/* painel decorativo do hero */
.hero__panel {
  position: relative; border-radius: var(--r-lg); border: 1px solid var(--border);
  background: linear-gradient(160deg, rgba(255,255,255,0.05), rgba(255,255,255,0.01));
  padding: 1.6rem; backdrop-filter: blur(10px); box-shadow: var(--shadow-card);
}
.hero__panel .bar { height: 10px; border-radius: 999px; background: var(--surface-2); overflow: hidden; margin-block: 0.65rem; }
.hero__panel .bar > i { display: block; height: 100%; border-radius: 999px; }
.hero__panel .row { display: flex; align-items: center; justify-content: space-between; font-size: 0.82rem; color: var(--muted); }
.hero__panel .tag { font-family: var(--font-display); font-weight: 700; font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); }

/* ---------- Stats grandes ---------- */
.bigstat b { font-family: var(--font-display); font-weight: 800; font-size: clamp(2.4rem, 5vw, 3.6rem); letter-spacing: -0.04em; color: var(--text-max); display: block; line-height: 1; }
.bigstat span { color: var(--muted); font-size: 0.95rem; }

/* ---------- Passos numerados ---------- */
.step { position: relative; padding-left: 3.6rem; }
.step__n {
  position: absolute; left: 0; top: 0;
  font-family: var(--font-display); font-weight: 800; font-size: 1rem;
  width: 2.5rem; height: 2.5rem; border-radius: var(--r-sm);
  display: grid; place-items: center;
  background: var(--green-soft); color: var(--green); border: 1px solid var(--border);
}

/* ---------- Sócios ---------- */
.partner__photo {
  aspect-ratio: 4 / 5; border-radius: var(--r-md); overflow: hidden;
  background:
    linear-gradient(160deg, rgba(25,227,139,0.10), rgba(138,99,242,0.12)),
    var(--bg-elev);
  border: 1px solid var(--border); position: relative;
  display: grid; place-items: center;
}
.partner__photo .ph {
  font-family: var(--font-display); font-weight: 800; font-size: 2.6rem;
  color: var(--text-max); opacity: 0.9;
  width: 84px; height: 84px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--grad-soft); border: 1px solid var(--border-strong);
}
.partner h3 { margin-top: 1.1rem; }
.partner .role { color: var(--green); font-weight: 600; font-size: 0.82rem; letter-spacing: 0.08em; text-transform: uppercase; margin-top: 0.2rem; }
.partner p { margin-top: 0.7rem; font-size: 0.95rem; color: var(--muted); }

/* ---------- Splitzo highlight ---------- */
.showcase {
  border-radius: var(--r-lg); border: 1px solid var(--border);
  background: linear-gradient(150deg, rgba(25,227,139,0.06), rgba(138,99,242,0.05)), var(--surface);
  padding: clamp(1.8rem, 4vw, 3.2rem); backdrop-filter: blur(10px);
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: center;
}
@media (max-width: 860px) { .showcase { grid-template-columns: 1fr; } }
.pill-tag { display: inline-flex; align-items: center; gap: 0.5em; padding: 0.35em 0.9em; border-radius: 999px; background: var(--green-soft); color: var(--green); font-weight: 600; font-size: 0.78rem; border: 1px solid var(--border); }

/* ---------- Contato ---------- */
.contact-card { text-align: center; }
.contact-email {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.3rem, 3vw, 2rem); letter-spacing: -0.02em;
  color: var(--text-max); display: inline-block; margin-top: 0.4rem;
  border-bottom: 2px solid transparent; transition: border-color 0.25s, color 0.25s;
}
.contact-email:hover { border-bottom-color: var(--green); color: var(--green); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding-block: clamp(3rem, 6vw, 4.5rem) 2.5rem; margin-top: 2rem; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem; }
@media (max-width: 760px) { .footer__grid { grid-template-columns: 1fr; gap: 1.75rem; } }
.footer h4 { font-family: var(--font-body); font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--faint); font-weight: 600; margin-bottom: 1rem; }
.footer a { color: var(--muted); font-size: 0.92rem; display: block; padding-block: 0.28rem; transition: color 0.2s; }
.footer a:hover { color: var(--text-max); }
.footer__legal { margin-top: 2.5rem; padding-top: 1.75rem; border-top: 1px solid var(--border); font-size: 0.82rem; color: var(--faint); line-height: 1.7; }
.footer__legal strong { color: var(--muted); font-weight: 600; }

/* ---------- Páginas legais ---------- */
.legal { padding-top: clamp(7rem, 12vh, 9rem); padding-bottom: 5rem; }
.legal .prose { max-width: 46rem; }
.legal h1 { font-size: clamp(2rem, 4vw, 2.8rem); }
.legal h2 { font-family: var(--font-display); font-size: 1.35rem; margin-top: 2.5rem; margin-bottom: 0.75rem; color: var(--text-max); letter-spacing: -0.02em; }
.legal p, .legal li { color: var(--muted); font-size: 1rem; line-height: 1.75; }
.legal p { margin-top: 0.85rem; }
.legal ul { margin-top: 0.85rem; padding-left: 0; }
.legal ul li { position: relative; padding-left: 1.4rem; margin-top: 0.5rem; }
.legal ul li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.legal a { color: var(--green); border-bottom: 1px solid transparent; }
.legal a:hover { border-bottom-color: var(--green); }
.legal .updated { color: var(--faint); font-size: 0.85rem; margin-top: 0.5rem; }
.back-link { color: var(--muted); font-size: 0.9rem; display: inline-flex; align-items: center; gap: 0.4rem; margin-bottom: 2rem; }
.back-link:hover { color: var(--text-max); }

/* ---------- Animações de entrada ---------- */
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.js .reveal { opacity: 0; }
.reveal.in { animation: rise 0.7s var(--ease) forwards; }
.js .stagger > * { opacity: 0; }
.stagger.in > * { animation: rise 0.65s var(--ease) forwards; }
.stagger.in > *:nth-child(1) { animation-delay: 0.05s; }
.stagger.in > *:nth-child(2) { animation-delay: 0.12s; }
.stagger.in > *:nth-child(3) { animation-delay: 0.19s; }
.stagger.in > *:nth-child(4) { animation-delay: 0.26s; }
.stagger.in > *:nth-child(5) { animation-delay: 0.33s; }
.stagger.in > *:nth-child(6) { animation-delay: 0.40s; }
@media (prefers-reduced-motion: reduce) {
  .reveal, .stagger > * { opacity: 1 !important; animation: none !important; }
  .btn:hover, .card:hover { transform: none; }
}

/* util */
.center { text-align: center; }
.mx-auto { margin-inline: auto; }
.mt-1 { margin-top: 0.5rem; } .mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.75rem; } .mt-4 { margin-top: 2.5rem; }
.stack > * + * { margin-top: 1rem; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }