/* ===========================================================
   SATOSPOLIO — Landing Page
   Tokens: preto-blockchain #0B0B0D, laranja-bitcoin #F7931A,
   creme-vintage #EDE6D6, verde-terminal #00D67F, linha #2A2A2E
   Display: Archivo Black | Body: Space Grotesk | Mono: JetBrains Mono
   =========================================================== */

:root {
  --black: #0B0B0D;
  --black-soft: #131316;
  --orange: #F7931A;
  --orange-dim: #C97515;
  --cream: #EDE6D6;
  --cream-dim: #C9C2B0;
  --terminal: #00D67F;
  --line: #2A2A2E;
  --line-light: #3A3A3F;

  --font-display: 'Archivo Black', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--cream);
  font-family: var(--font-body);
  line-height: 1.5;
  overflow-x: hidden;
}

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

a { color: inherit; text-decoration: none; }

/* subtle film-grain noise overlay for texture */
.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

/* ============ NAV ============ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(11,11,13,0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  color: var(--orange);
}
.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 9px 18px;
  border: 1px solid var(--orange);
  border-radius: 2px;
  color: var(--orange);
  transition: background 0.2s, color 0.2s;
}
.nav-cta:hover { background: var(--orange); color: var(--black); }

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 140px 32px 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  overflow: hidden;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.25;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}
.hero-content { position: relative; max-width: 760px; z-index: 1; }
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--terminal);
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--cream);
}
.hero-title-accent { color: var(--orange); }
.hero-sub {
  margin: 28px auto 0;
  max-width: 540px;
  font-size: 1.1rem;
  color: var(--cream-dim);
}
.hero-actions {
  margin-top: 40px;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  padding: 14px 28px;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s, color 0.2s, border-color 0.2s;
  display: inline-block;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--orange);
  color: var(--black);
  font-weight: 700;
}
.btn-primary:hover { background: #ffa530; }
.btn-ghost {
  border-color: var(--line-light);
  color: var(--cream-dim);
}
.btn-ghost:hover { border-color: var(--orange); color: var(--orange); }
.btn-block { width: 100%; text-align: center; }

.hero-board-wrap {
  position: relative;
  z-index: 1;
  margin-top: 64px;
  max-width: 760px;
  width: 100%;
  border: 1px solid var(--line-light);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 40px 80px -20px rgba(0,0,0,0.6);
}
.hero-board { width: 100%; }

/* ============ SECTION GENERIC ============ */
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
}
.section-inner--narrow { max-width: 640px; }
.section-inner--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--orange);
  margin-bottom: 14px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.1;
  color: var(--cream);
  margin-bottom: 20px;
}
.section-text {
  font-size: 1.02rem;
  color: var(--cream-dim);
  max-width: 620px;
}

/* ============ PHILOSOPHY ============ */
.philosophy {
  padding: 120px 0;
  border-top: 1px solid var(--line);
}
.philosophy-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: stretch;
}
.philo-card {
  border: 1px solid var(--line-light);
  border-radius: 4px;
  padding: 36px 30px;
}
.philo-card--etf { background: var(--black-soft); }
.philo-card--sats {
  background: linear-gradient(160deg, rgba(247,147,26,0.08), transparent);
  border-color: var(--orange-dim);
}
.philo-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--cream-dim);
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--line-light);
  border-radius: 2px;
  margin-bottom: 18px;
}
.philo-card--sats .philo-tag { color: var(--orange); border-color: var(--orange-dim); }
.philo-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 12px;
}
.philo-card p { color: var(--cream-dim); font-size: 0.98rem; }
.philo-vs {
  align-self: center;
  font-family: var(--font-mono);
  color: var(--line-light);
  font-size: 0.85rem;
}
.philosophy-line {
  margin-top: 56px;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  color: var(--cream-dim);
  text-align: center;
}
.philosophy-line span { color: var(--orange); }

/* ============ BOARD SECTION ============ */
.board-section { padding: 120px 0; border-top: 1px solid var(--line); }
.board-showcase {
  margin-top: 56px;
  padding: 0 32px;
}
.board-full {
  max-width: 980px;
  margin: 0 auto;
  border: 1px solid var(--line-light);
  border-radius: 4px;
}

/* ============ CARDS SECTION ============ */
.cards-section { padding: 120px 0; border-top: 1px solid var(--line); }
.card-grid {
  margin-top: 56px;
  padding: 0 32px;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card-item--wide { grid-column: span 1; }
.card-item {
  background: var(--black-soft);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.card-item img { width: 100%; }
.card-item figcaption {
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cream-dim);
}

/* ============ VOUCHERS ============ */
.vouchers-section { padding: 120px 0; border-top: 1px solid var(--line); }
.vouchers-list { margin-top: 28px; list-style: none; }
.vouchers-list li {
  font-size: 1rem;
  color: var(--cream-dim);
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.vouchers-list li span {
  font-family: var(--font-mono);
  color: var(--orange);
  font-weight: 700;
  margin-right: 8px;
}
.vouchers-image img {
  border-radius: 4px;
  border: 1px solid var(--line-light);
}

/* ============ INTEREST FORM ============ */
.interest-section {
  padding: 120px 0 140px;
  border-top: 1px solid var(--line);
  text-align: center;
}
.interest-section .section-eyebrow,
.interest-section .section-title,
.interest-section .section-text { margin-left: auto; margin-right: auto; }
.interest-form { margin-top: 40px; text-align: left; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}
.interest-form input[type="text"],
.interest-form input[type="email"] {
  width: 100%;
  background: var(--black-soft);
  border: 1px solid var(--line-light);
  border-radius: 2px;
  padding: 14px 16px;
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 0.98rem;
}
.interest-form input:focus {
  outline: none;
  border-color: var(--orange);
}
.form-note {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--terminal);
  min-height: 1.2em;
}

/* ============ FOOTER ============ */
.footer {
  border-top: 1px solid var(--line);
  padding: 40px 32px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-logo {
  font-family: var(--font-display);
  color: var(--orange);
  font-size: 0.95rem;
}
.footer-line {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cream-dim);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 860px) {
  .section-inner--split { grid-template-columns: 1fr; gap: 40px; }
  .philosophy-grid { grid-template-columns: 1fr; }
  .philo-vs { display: none; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .card-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .nav-inner { padding: 16px 20px; }
  .hero { padding: 120px 20px 60px; }
}