:root {
  --bg: #050505;
  --bg-elevated: #0b0b0b;
  --bg-card: #0e0e0e;
  --border: #1c1c1c;
  --border-strong: #2c2c2c;
  --text: #f5f5f5;
  --text-muted: #858585;
  --text-faint: #555555;
  --accent: #f5f5f5;
  --font-display: "Sora", "Inter", system-ui, sans-serif;
  --font-serif: "Instrument Serif", Georgia, serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection {
  background: var(--text);
  color: var(--bg);
}

/* ---------------- grain ---------------- */
.grain {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------------- nav ---------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding-top: 12px;
  pointer-events: none;
  transition: padding 0.35s ease;
}

.nav-inner {
  pointer-events: auto;
  max-width: 1120px;
  margin: 0 auto;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  transition: max-width 0.45s ease, background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.nav.scrolled {
  padding-top: 8px;
}

.nav.scrolled .nav-inner {
  max-width: 700px;
  background: rgba(11, 11, 11, 0.85);
  border-color: var(--border-strong);
  box-shadow: 0 14px 44px rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.brand-logo {
  border-radius: 8px;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.12rem;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  gap: 4px;
  padding: 4px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 7px 15px;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.nav-links a:hover {
  color: var(--text);
  background: var(--bg-elevated);
  border-color: var(--border-strong);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------------- hero ---------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 140px 24px 90px;
  text-align: center;
}

.hero-inner {
  max-width: 780px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.hero-logo,
.cta-logo,
.brand-logo,
.footer-brand img {
  mix-blend-mode: screen;
}

.hero-logo {
  border-radius: 20px;
  margin-bottom: 6px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3.8rem, 11vw, 7rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1;
}

.hero-accent {
  font-style: italic;
}

.hero-sub {
  max-width: 560px;
  color: var(--text-muted);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 6px;
}

.hero-stats {
  display: flex;
  align-items: stretch;
  margin-top: 44px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  width: 100%;
  max-width: 620px;
}

.stat {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 22px 12px;
}

.stat + .stat {
  border-left: 1px solid var(--border);
}

.stat-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ---------------- buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.btn-solid {
  background: var(--text);
  color: var(--bg);
  border: 1px solid var(--text);
}

.btn-solid:hover {
  background: #ffffff;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
}

.btn-outline:hover {
  border-color: var(--text);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1rem;
}

/* ---------------- marquee ---------------- */
.marquee {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  overflow: hidden;
  padding: 18px 0;
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 22s linear infinite;
  will-change: transform;
}

.marquee-group {
  display: flex;
  flex-shrink: 0;
  gap: 48px;
  padding-right: 48px;
}

.marquee:hover .marquee-track {
  animation-play-state: paused;
}

.marquee-group span {
  color: var(--text-faint);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  white-space: nowrap;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------------- sections ---------------- */
.section {
  padding: 110px 24px;
}

.section-alt {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-inner {
  max-width: 1120px;
  margin: 0 auto;
}

.section-head {
  max-width: 680px;
  margin: 0 auto 64px;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  color: var(--text-muted);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5.5vw, 3.4rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.1;
}

/* ---------------- cards ---------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.card {
  background: var(--bg);
  padding: 34px 30px;
  transition: background 0.25s ease;
}

.card:hover {
  background: var(--bg-card);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}

.card-index {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-faint);
  letter-spacing: 0.08em;
}

.card-icon {
  width: 24px;
  height: 24px;
  color: var(--text-muted);
  transition: color 0.25s ease;
}

.card:hover .card-icon {
  color: var(--text);
}

.card h3 {
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.card p {
  color: var(--text-muted);
  font-size: 0.94rem;
}

.card-cmds {
  margin-top: 18px;
  color: var(--text-faint);
}

.card code {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ---------------- commands ---------------- */
.command-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.command-group {
  background: var(--bg);
  padding: 26px 24px;
  transition: background 0.25s ease;
}

.command-group:hover {
  background: var(--bg-card);
}

.command-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.command-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text);
}

.command-group h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.command-group p {
  line-height: 2.1;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.command-group code {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 2px 7px;
  font-size: 0.78rem;
  color: var(--text);
  white-space: nowrap;
}

/* ---------------- setup ---------------- */
.setup-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 40px;
}

.setup-card {
  background: var(--bg);
  padding: 40px 28px 30px;
  transition: background 0.25s ease;
}

.setup-card:hover {
  background: var(--bg-card);
}

.setup-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
}

.setup-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.setup-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.setup-card code {
  font-size: 0.8rem;
  color: var(--text);
}



/* ---------------- faq ---------------- */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.faq-item {
  background: var(--bg);
  transition: background 0.2s ease;
}

.faq-item[open] {
  background: var(--bg-card);
}

.faq-item summary {
  cursor: pointer;
  padding: 20px 24px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  list-style: none;
  position: relative;
  padding-right: 48px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--text-muted);
  transition: transform 0.25s ease, color 0.2s ease;
}

.faq-item[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
  color: var(--text);
}

.faq-item p {
  padding: 0 24px 22px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.faq-item code {
  font-size: 0.8rem;
  color: var(--text);
}

/* ---------------- cta ---------------- */
.cta {
  padding: 120px 24px;
  text-align: center;
}

.cta-inner {
  max-width: 580px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.cta-logo {
  border-radius: 18px;
}

.cta-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5.5vw, 3.4rem);
  font-weight: 400;
  letter-spacing: -0.01em;
}

.cta-sub {
  color: var(--text-muted);
  font-size: 1.02rem;
}

/* ---------------- footer ---------------- */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
  padding: 48px 24px 34px;
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
}

.footer-brand img {
  border-radius: 6px;
}

.footer-links {
  display: flex;
  gap: 28px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--text);
}

.footer-copy {
  color: var(--text-faint);
  font-size: 0.8rem;
}

/* ---------------- reveal ---------------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------------- responsive ---------------- */
@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    top: 70px;
    right: 16px;
    left: 16px;
    flex-direction: column;
    background: rgba(11, 11, 11, 0.98);
    border: 1px solid var(--border-strong);
    border-radius: 14px;
    padding: 18px 22px;
    gap: 16px;
    transform: translateY(-14px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
  }

  .nav-links.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-cta .btn-sm {
    display: none;
  }
}

@media (max-width: 560px) {
  .section {
    padding: 76px 18px;
  }

  .hero {
    padding-top: 120px;
  }

  .hero-stats {
    flex-direction: column;
  }

  .stat + .stat {
    border-left: none;
    border-top: 1px solid var(--border);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}