:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #161616;
  --bg-card-hover: #1a1a1a;
  --border: #222222;
  --border-hover: #333333;
  --text-primary: #e8e8e8;
  --text-secondary: #888888;
  --text-muted: #555555;
  --accent: #e07020;
  --accent-dim: rgba(224, 112, 32, 0.15);
  --accent-glow: rgba(224, 112, 32, 0.3);
  --gold: #d4a030;
  --gold-dim: rgba(212, 160, 48, 0.12);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--gold); }

::selection { background: var(--accent-dim); color: var(--text-primary); }

/* ── NAV ──────────────────────────────────────────────── */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s, background 0.4s;
}

.nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(10, 10, 10, 0.95);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-primary);
}

.nav-logo img {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: color 0.3s;
}

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

.nav-cta {
  padding: 0.45rem 1.2rem;
  background: var(--accent);
  color: #000 !important;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  transition: background 0.3s, transform 0.2s;
}

.nav-cta:hover {
  background: var(--gold);
  transform: translateY(-1px);
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ── HERO ─────────────────────────────────────────────── */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem 2rem 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url('assets/banner.png') center bottom / cover no-repeat;
  opacity: 0.25;
  filter: blur(1px);
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    var(--bg-primary) 0%,
    transparent 30%,
    transparent 70%,
    var(--bg-primary) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-logo {
  width: 80px;
  height: 80px;
  border-radius: 16px;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.2s;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.4s;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--accent), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.6s;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.8s;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: all 0.3s;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #000;
}

.btn-primary:hover {
  background: var(--gold);
  color: #000;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ── SECTIONS ─────────────────────────────────────────── */

section {
  padding: 6rem 2rem;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.8rem;
  padding: 0.3rem 0.8rem;
  background: var(--accent-dim);
  border-radius: 3px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--text-secondary);
  max-width: 600px;
  font-size: 1rem;
  margin-bottom: 3rem;
}

/* ── MECHANISM ────────────────────────────────────────── */

.mechanism {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.mechanism-img {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  display: block;
  border-radius: 8px;
  border: 1px solid var(--border);
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s, transform 0.8s;
}

.mechanism-img.visible {
  opacity: 1;
  transform: translateY(0);
}

.phases {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

.phase-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.3s, transform 0.3s;
}

.phase-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.phase-num {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.phase-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.phase-card ul {
  list-style: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.phase-card li {
  padding: 0.3rem 0;
  padding-left: 1.2rem;
  position: relative;
}

.phase-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7rem;
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
}

/* ── FEATURES GRID ────────────────────────────────────── */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.3s, transform 0.3s;
  opacity: 0;
  transform: translateY(20px);
}

.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.feature-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: 6px;
  margin-bottom: 1.2rem;
  color: var(--accent);
  font-size: 1rem;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ── CODE / GITHUB ────────────────────────────────────── */

.github-preview {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.repo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.repo-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.repo-name {
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.repo-name svg { width: 18px; height: 18px; fill: var(--text-secondary); }

.repo-lang {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.repo-lang-dot {
  width: 10px;
  height: 10px;
  background: #3572A5;
  border-radius: 50%;
}

.repo-files {
  padding: 0;
  list-style: none;
}

.repo-file {
  padding: 0.6rem 2rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-secondary);
  transition: background 0.2s;
}

.repo-file:last-child { border-bottom: none; }
.repo-file:hover { background: var(--bg-card-hover); }

.repo-file svg { width: 16px; height: 16px; fill: var(--text-muted); flex-shrink: 0; }

.repo-file .name { color: var(--text-primary); }

.repo-desc {
  padding: 1.5rem 2rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
}

/* ── TELEGRAM ─────────────────────────────────────────── */

.tg-preview {
  max-width: 480px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.tg-header {
  padding: 1rem 1.5rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.tg-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
}

.tg-bot-name {
  font-size: 0.9rem;
  font-weight: 600;
}

.tg-bot-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.tg-messages {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.tg-msg {
  max-width: 85%;
  padding: 0.7rem 1rem;
  border-radius: 12px;
  font-size: 0.82rem;
  line-height: 1.5;
}

.tg-msg-bot {
  background: #1e2030;
  border-bottom-left-radius: 2px;
  align-self: flex-start;
}

.tg-msg-user {
  background: #2a4a2a;
  border-bottom-right-radius: 2px;
  align-self: flex-end;
}

.tg-msg b { color: var(--accent); font-weight: 600; }

.tg-msg .dim { color: var(--text-muted); font-size: 0.75rem; }

.tg-buttons {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.tg-btn {
  padding: 0.35rem 0.7rem;
  background: rgba(224, 112, 32, 0.15);
  border: 1px solid rgba(224, 112, 32, 0.25);
  border-radius: 6px;
  font-size: 0.72rem;
  color: var(--accent);
  font-weight: 500;
}

.telegram-section .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.telegram-info {
  max-width: 480px;
}

/* ── TOKEN ────────────────────────────────────────────── */

.token-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  padding: 2rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.token-item {
  text-align: center;
}

.token-item .label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.3rem;
}

.token-item .value {
  font-size: 0.9rem;
  font-weight: 600;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  color: var(--text-primary);
}

.token-item .value a { color: var(--accent); }

/* ── WHITEPAPER ───────────────────────────────────────── */

.wp-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 3rem;
}

.wp-nav {
  position: sticky;
  top: 80px;
  align-self: start;
}

.wp-nav-list {
  list-style: none;
}

.wp-nav-item {
  padding: 0.5rem 1rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-left: 2px solid var(--border);
  cursor: pointer;
  transition: all 0.3s;
}

.wp-nav-item:hover,
.wp-nav-item.active {
  color: var(--text-primary);
  border-left-color: var(--accent);
  background: var(--accent-dim);
}

.wp-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 3rem 0 1rem;
  padding-top: 1rem;
}

.wp-content h2:first-child { margin-top: 0; }

.wp-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 2rem 0 0.8rem;
  color: var(--accent);
}

.wp-content p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 0.92rem;
}

.wp-content ul {
  color: var(--text-secondary);
  font-size: 0.92rem;
  padding-left: 1.2rem;
  margin-bottom: 1rem;
}

.wp-content li { margin-bottom: 0.4rem; }

.wp-content code {
  background: var(--bg-secondary);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-size: 0.82rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
}

.wp-content pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.2rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
  font-size: 0.8rem;
  line-height: 1.6;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-secondary);
}

/* ── FOOTER ───────────────────────────────────────────── */

.footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  color: var(--text-primary);
}

.footer-brand img { width: 24px; height: 24px; border-radius: 4px; }

.footer-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: color 0.3s;
}

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

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ── REVEAL ANIMATIONS ────────────────────────────────── */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ── GLOW LINE ────────────────────────────────────────── */

.glow-line {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  border-radius: 1px;
  margin-bottom: 2rem;
}

/* ── RESPONSIVE ───────────────────────────────────────── */

@media (max-width: 768px) {
  .hero h1 { font-size: 2.2rem; }
  .hero-sub { font-size: 1rem; }
  .features-grid { grid-template-columns: 1fr; }
  .phases { grid-template-columns: 1fr; }
  .telegram-section .container { grid-template-columns: 1fr; }
  .wp-grid { grid-template-columns: 1fr; }
  .wp-nav { display: none; }
  .footer-inner { flex-direction: column; gap: 1.5rem; text-align: center; }
  .nav-links { display: none; }
  .nav-mobile-toggle { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: rgba(10, 10, 10, 0.98);
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
  }
  .token-bar { gap: 1.5rem; }
}