/* ════════════════════════════════════════════════════════════════
   ghostanty.site — mesma linguagem do app: preto absoluto, branco,
   nenhuma cor de acento. Hierarquia por peso, espaço e opacidade.
   ════════════════════════════════════════════════════════════════ */

:root {
  --bg:        #000000;
  --panel:     #0a0a0b;
  --panel-hi:  #131316;
  --line:      rgba(255, 255, 255, 0.11);
  --line-hard: rgba(255, 255, 255, 0.24);
  --ink:       #ffffff;
  --ink-dim:   #a4a4ae;
  --ink-faint: #63636e;

  --mono: "Cascadia Mono", Consolas, ui-monospace, "SFMono-Regular", monospace;
  --sans: Bahnschrift, "DIN Alternate", "Segoe UI Variable Text", "Segoe UI",
          system-ui, -apple-system, sans-serif;

  --wrap: 1080px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* grade técnica no topo, igual à do app */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 100% 52px,
    linear-gradient(90deg, var(--line) 1px, transparent 1px) 0 0 / 52px 100%,
    radial-gradient(110% 70% at 50% 0%, rgba(255, 255, 255, 0.07), transparent 60%);
  opacity: 0.5;
  mask-image: radial-gradient(120% 85% at 50% 0%, #000 25%, transparent 80%);
}

.mono { font-family: var(--mono); }

img { max-width: 100%; display: block; }

a { color: inherit; }

::selection { background: #fff; color: #000; }

:focus-visible { outline: 1px solid #fff; outline-offset: 3px; }

/* ─────────────────────────────────────────────────────────── nav */

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(10px);
}

.nav__brand img { width: 132px; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 14px;
}
.nav__links a {
  text-decoration: none;
  color: var(--ink-dim);
  transition: color 0.15s;
}
.nav__links a:hover { color: var(--ink); }

.nav__cta {
  padding: 7px 16px;
  border: 1px solid var(--line-hard);
  color: var(--ink) !important;
  transition: background 0.15s, color 0.15s !important;
}
.nav__cta:hover { background: var(--ink); color: #000 !important; }

/* ────────────────────────────────────────────────────────── hero */

.hero {
  position: relative;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 104px 28px 72px;
  text-align: center;
}

/* A constelação sangra além do container do hero e some nas bordas, para não
   virar um retângulo com recorte visível. */
.hero__fx {
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: calc(100% + 120px);
  z-index: 0;
  mask-image: radial-gradient(70% 62% at 50% 45%, #000 35%, transparent 78%);
}

.hero > *:not(.hero__fx) { position: relative; z-index: 1; }

.hero__word {
  width: min(560px, 84%);
  margin: 0 auto 40px;
  filter: drop-shadow(0 0 40px rgba(255, 255, 255, 0.18));
  animation: rise 0.7s var(--ease) backwards;
}

.hero__line {
  margin: 0 auto 18px;
  max-width: 18ch;
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 600;
  animation: rise 0.7s var(--ease) 0.08s backwards;
}

.hero__sub {
  margin: 0 auto;
  max-width: 56ch;
  color: var(--ink-dim);
  font-size: clamp(15px, 1.7vw, 18px);
  animation: rise 0.7s var(--ease) 0.16s backwards;
}

.hero__cta {
  margin-top: 40px;
  animation: rise 0.7s var(--ease) 0.24s backwards;
}

.hero__meta {
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
}

.btn {
  display: inline-block;
  padding: 14px 40px;
  background: var(--ink);
  color: #000;
  border: 1px solid var(--ink);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: box-shadow 0.2s, transform 0.1s;
}
.btn:hover { box-shadow: 0 0 40px rgba(255, 255, 255, 0.35); }
.btn:active { transform: translateY(1px); }

.btn--off {
  background: none;
  color: var(--ink-faint);
  border-color: var(--line-hard);
  cursor: not-allowed;
}
.btn--off:hover { box-shadow: none; }

/* ────────────────────────────────────────────────────────── shot */

.shot {
  max-width: 1140px;
  margin: 0 auto;
  padding: 24px 28px 96px;
}

.shot__frame {
  border: 1px solid var(--line-hard);
  background: var(--panel);
  padding: 8px;
  box-shadow: 0 40px 120px rgba(255, 255, 255, 0.06);
}
.shot__frame img { width: 100%; }

/* ─────────────────────────────────────────────────────── seções */

.section-title {
  margin: 0 0 36px;
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
}

.features, .steps, .req {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 28px 96px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(272px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.card {
  background: var(--bg);
  padding: 28px 26px;
  transition: background 0.2s;
}
.card:hover { background: var(--panel-hi); }
.card h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 600;
}
.card p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 14.5px;
}
.card .mono { font-size: 13px; color: var(--ink); }

/* passos */

.stepslist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.stepslist li {
  display: flex;
  gap: 24px;
  align-items: baseline;
  padding: 24px 26px;
  background: var(--bg);
}
.stepslist__n {
  font-size: 13px;
  color: var(--ink-faint);
  letter-spacing: 0.1em;
  flex: none;
}
.stepslist h3 { margin: 0 0 4px; font-size: 16px; font-weight: 600; }
.stepslist p  { margin: 0; color: var(--ink-dim); font-size: 14.5px; }

/* requisitos */

.reqlist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.reqlist li {
  display: flex;
  gap: 20px;
  align-items: baseline;
  padding: 16px 26px;
  background: var(--bg);
  color: var(--ink-dim);
  font-size: 14.5px;
}
.reqlist .mono {
  flex: none;
  width: 108px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
}

/* ────────────────────────────────────────────────────────── foot */

.foot {
  border-top: 1px solid var(--line);
  padding: 44px 28px 60px;
  text-align: center;
  color: var(--ink-faint);
  font-size: 13px;
}
.foot__mark { margin: 0 auto 20px; opacity: 0.5; }
.foot p { margin: 0 0 10px; }
.foot__note {
  max-width: 62ch;
  margin: 0 auto !important;
  font-size: 12px;
  line-height: 1.65;
  color: #4c4c56;
}

@media (max-width: 640px) {
  .nav { padding: 14px 18px; }
  .nav__links { gap: 16px; font-size: 13px; }
  .nav__links a:not(.nav__cta) { display: none; }
  .hero { padding: 64px 20px 48px; }
  .stepslist li { flex-direction: column; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}