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

:root {
  --bg: #0a0a0f;
  --card: #111118;
  --card2: #16161f;
  --accent: #6c63ff;
  --accent2: #00e5a0;
  --text: #e0e0e8;
  --muted: #666;
  --border: rgba(108,99,255,.2);
}

body { background: var(--bg); color: var(--text); font-family: 'Inter', system-ui, sans-serif; line-height: 1.6; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent2); }

/* Nav */
.nav { display: flex; align-items: center; justify-content: space-between; padding: 16px 32px; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: rgba(10,10,15,.95); backdrop-filter: blur(8px); z-index: 100; }
.logo { font-size: 20px; font-weight: 700; color: var(--text); letter-spacing: -0.5px; }
.nav-links { display: flex; align-items: center; gap: 24px; font-size: 14px; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.btn-nav { background: var(--card2); border: 1px solid var(--border); color: var(--text); padding: 6px 16px; border-radius: 6px; cursor: pointer; font-size: 14px; }
.btn-nav:hover { border-color: var(--accent); color: var(--accent); }

/* Hero */
.hero { text-align: center; padding: 100px 24px 80px; max-width: 800px; margin: 0 auto; }
.hero h1 { font-size: clamp(32px, 5vw, 56px); font-weight: 800; letter-spacing: -1px; background: linear-gradient(135deg, #fff 0%, var(--accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 20px; }
.hero-sub { font-size: 18px; color: var(--muted); margin-bottom: 36px; max-width: 560px; margin-left: auto; margin-right: auto; }
.btn-primary { display: inline-block; background: var(--accent); color: #fff; padding: 12px 28px; border-radius: 8px; font-weight: 600; font-size: 16px; border: none; cursor: pointer; transition: opacity .2s; }
.btn-primary:hover { opacity: .85; color: #fff; }
.stats { display: flex; justify-content: center; gap: 48px; margin-top: 56px; flex-wrap: wrap; }
.stat-num { display: block; font-size: 32px; font-weight: 700; color: var(--accent2); }
.stat-label { font-size: 13px; color: var(--muted); }

/* Sections */
.section { max-width: 1000px; margin: 0 auto; padding: 80px 24px; }
.section h2 { font-size: 32px; font-weight: 700; margin-bottom: 12px; }
.section-sub { color: var(--muted); margin-bottom: 40px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; margin-top: 40px; }
.step { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 28px; }
.step-num { width: 36px; height: 36px; background: var(--accent); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; margin-bottom: 16px; }
.step h3 { font-size: 16px; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 14px; }

/* Models table */
.models-table-wrap { overflow-x: auto; margin-bottom: 32px; }
.models-table { width: 100%; border-collapse: collapse; }
.models-table th { text-align: left; padding: 12px 16px; color: var(--muted); font-size: 13px; border-bottom: 1px solid var(--border); }
.models-table td { padding: 12px 16px; border-bottom: 1px solid rgba(255,255,255,.04); font-size: 14px; }
.models-table tr:hover td { background: var(--card); }

/* Code block */
.code-block { background: var(--card); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.code-tabs { display: flex; border-bottom: 1px solid var(--border); }
.tab { background: none; border: none; color: var(--muted); padding: 10px 20px; cursor: pointer; font-size: 13px; border-bottom: 2px solid transparent; }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.code-block pre { padding: 24px; overflow-x: auto; }
.code-block code { font-family: 'JetBrains Mono', 'Fira Code', monospace; font-size: 13px; color: #c9d1d9; line-height: 1.7; }

/* FAQ */
.faq { display: flex; flex-direction: column; gap: 8px; margin-top: 32px; }
details { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 16px 20px; }
summary { cursor: pointer; font-weight: 500; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::before { content: '+ '; color: var(--accent); }
details[open] summary::before { content: '− '; }
details p { margin-top: 12px; color: var(--muted); font-size: 14px; }

/* Footer */
.footer { text-align: center; padding: 48px 24px; border-top: 1px solid var(--border); }
.footer .logo { margin-bottom: 12px; }

/* Auth */
.auth-screen { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.auth-box { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 40px; width: 100%; max-width: 400px; }
.auth-tabs { display: flex; gap: 4px; margin-bottom: 24px; background: var(--bg); border-radius: 8px; padding: 4px; }
.auth-tabs .tab { flex: 1; border-radius: 6px; padding: 8px; }
.auth-tabs .tab.active { background: var(--card2); color: var(--text); }
.input { width: 100%; background: var(--bg); border: 1px solid var(--border); color: var(--text); padding: 10px 14px; border-radius: 8px; font-size: 14px; margin-bottom: 12px; outline: none; }
.input:focus { border-color: var(--accent); }
.error-msg { font-size: 13px; margin-top: 8px; min-height: 20px; }

/* Dashboard */
.dashboard-wrap { max-width: 900px; margin: 32px auto; padding: 0 24px; display: grid; gap: 24px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 28px; }
.card-title { font-size: 18px; font-weight: 600; margin-bottom: 20px; }
.balance-display { font-size: 40px; font-weight: 700; color: var(--accent2); }
.btn-secondary { background: var(--card2); border: 1px solid var(--border); color: var(--text); padding: 8px 16px; border-radius: 6px; cursor: pointer; font-size: 14px; }
.btn-secondary:hover { border-color: var(--accent); }
.btn-danger { background: none; border: 1px solid rgba(239,71,111,.3); color: #ef476f; padding: 6px 12px; border-radius: 6px; cursor: pointer; font-size: 13px; }
.btn-danger:hover { background: rgba(239,71,111,.1); }
.wallet-addr { font-family: monospace; font-size: 13px; background: var(--bg); padding: 10px 14px; border-radius: 6px; border: 1px solid var(--border); word-break: break-all; color: var(--accent2); }
.key-row { display: flex; justify-content: space-between; align-items: flex-start; padding: 14px 0; border-bottom: 1px solid var(--border); gap: 12px; }
.key-row:last-child { border-bottom: none; }
.key-name { font-weight: 500; font-size: 14px; margin-bottom: 4px; }
.key-val { font-family: monospace; font-size: 12px; color: var(--muted); word-break: break-all; }
.key-meta { font-size: 12px; color: var(--muted); margin-top: 4px; }
.stat-row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.loading { color: var(--muted); font-size: 14px; }

/* Shop */
.amounts-grid { display: flex; flex-wrap: wrap; gap: 12px; }
.amount-btn { background: var(--card2); border: 2px solid var(--border); border-radius: 10px; padding: 16px 24px; cursor: pointer; text-align: center; transition: border-color .2s; }
.amount-btn:hover, .amount-btn.selected { border-color: var(--accent); }
.amount-val { display: block; font-size: 22px; font-weight: 700; color: var(--text); }
.amount-stock { display: block; font-size: 12px; color: var(--muted); margin-top: 4px; }
.order-info { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 20px; }
.order-row { padding: 14px 0; border-bottom: 1px solid var(--border); }
.order-row:last-child { border-bottom: none; }
.coupon-code { margin-top: 8px; background: var(--bg); border: 1px solid var(--accent2); border-radius: 6px; padding: 8px 12px; font-family: monospace; font-size: 14px; color: var(--accent2); word-break: break-all; }
.how-list { padding-left: 20px; color: var(--muted); font-size: 14px; line-height: 2; }
.how-list a { color: var(--accent); }
.how-list code { background: var(--bg); padding: 2px 6px; border-radius: 4px; font-size: 12px; color: var(--accent2); }

/* Language Switcher */
.lang-switcher { display: flex; gap: 8px; margin-left: auto; }
.lang-btn { background: transparent; border: 1px solid var(--border); color: var(--muted); padding: 6px 12px; border-radius: 6px; cursor: pointer; font-size: 12px; font-weight: 600; transition: all .2s; }
.lang-btn:hover { color: var(--text); border-color: var(--accent); }
.lang-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* Hamburger button */
.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); margin: 5px 0; border-radius: 2px; transition: transform .3s, opacity .3s; }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

@media (max-width: 600px) {
  .nav { padding: 12px 16px; flex-wrap: wrap; }
  .hamburger { display: block; }
  .nav-links { display: none; width: 100%; flex-direction: column; gap: 12px; padding-top: 16px; border-top: 1px solid var(--border); margin-top: 12px; }
  .nav-links.open { display: flex; }
  .nav-links a:not(.btn-nav) { display: block; }
  .hero { padding: 60px 16px 48px; }
  .stats { gap: 24px; }
}