:root {
  --bg: #07111f;
  --bg-soft: #0d1728;
  --panel: rgba(12, 20, 36, 0.7);
  --text: #f4f7fb;
  --muted: #9db0c7;
  --line: rgba(255,255,255,0.08);
  --accent: #5eead4;
  --accent-2: #22c55e;
  --shadow: 0 25px 60px rgba(0,0,0,0.28);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(34,197,94,0.18), transparent 35%),
    radial-gradient(circle at top right, rgba(94,234,212,0.18), transparent 30%),
    linear-gradient(180deg, #06101d 0%, #0b1424 100%);
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
.glass {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}
.brand { display:flex; align-items:center; gap:12px; }
.brand-large { margin-bottom: 24px; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 14px;
  display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, var(--accent), #3b82f6);
  color: #04111f; font-weight: 800;
}
.brand strong { display:block; font-size: 18px; }
.brand small { color: var(--muted); }
.topbar {
  max-width: 1200px; margin: 22px auto 0; padding: 16px 22px;
  border-radius: 22px; display:flex; align-items:center; justify-content:space-between;
}
.nav-actions, .hero-actions, .header-actions { display:flex; gap: 12px; align-items:center; }
.primary-btn, .ghost-btn {
  border: 0; cursor:pointer; border-radius: 14px; padding: 12px 18px; font-weight: 700;
  transition: .2s ease; display:inline-flex; align-items:center; justify-content:center;
}
.primary-btn { background: linear-gradient(135deg, var(--accent), #34d399); color:#04111f; }
.ghost-btn { background: rgba(255,255,255,0.04); color: var(--text); border: 1px solid var(--line); }
.primary-btn:hover, .ghost-btn:hover { transform: translateY(-1px); }
.primary-btn.large, .ghost-btn.large { padding: 14px 22px; }
.full { width:100%; }
.hero-wrapper {
  max-width: 1200px; margin: 50px auto; display:grid; grid-template-columns: 1.1fr .9fr; gap: 24px; padding: 0 18px;
}
.hero-copy h1 { font-size: clamp(42px, 6vw, 68px); line-height: 1.02; margin: 14px 0; max-width: 760px; }
.hero-copy p { color: var(--muted); font-size: 18px; max-width: 660px; line-height: 1.7; }
.hero-badge, .status-pill, .eyebrow {
  display:inline-flex; align-items:center; gap:8px; padding: 10px 14px; border-radius: 999px;
  background: rgba(94,234,212,0.1); color: #d1fff6; border: 1px solid rgba(94,234,212,0.24); font-size: 13px;
}
.hero-panel, .price-box { border-radius: 28px; }
.hero-panel { padding: 18px; }
.window-top { display:flex; gap:8px; padding-bottom: 14px; }
.window-top span { width:12px; height:12px; border-radius:50%; background: rgba(255,255,255,0.18); }
.hero-grid { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.hero-card {
  padding: 22px; border-radius: 22px; background: rgba(255,255,255,0.04); border: 1px solid var(--line);
  min-height: 150px; display:flex; flex-direction:column; justify-content:space-between;
}
.hero-card.gradient { background: linear-gradient(135deg, rgba(94,234,212,0.18), rgba(59,130,246,0.2)); }
.hero-card.dark-card { background: rgba(4,10,20,0.55); }
.hero-card.small, .hero-card strong { font-size: 32px; }
.hero-card small, .feature p, .muted, .panel-head small, .table-row small { color: var(--muted); }
.hero-card.wide { grid-column: span 2; }
.mini-bars { display:flex; flex-direction:column; gap:10px; margin-top: 16px; }
.mini-bars span { display:block; height:10px; border-radius:999px; background: linear-gradient(90deg, var(--accent), #3b82f6); }
.price-box { margin-top: 28px; padding: 20px 22px; width: fit-content; }
.price { font-size: 44px; font-weight: 800; margin: 8px 0; }
.price span { font-size: 18px; color: var(--muted); }
.features { max-width: 1200px; margin: 0 auto 46px; display:grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding: 0 18px; }
.feature { padding: 22px; border-radius: 22px; }
.footer { text-align:center; color: var(--muted); padding: 18px 18px 32px; }
.auth-body { display:grid; place-items:center; padding: 24px; }
.auth-layout { max-width: 1120px; width: 100%; display:grid; grid-template-columns: 1fr 440px; gap: 24px; }
.auth-side { padding: 38px; }
.auth-side h1 { font-size: 54px; margin: 0 0 12px; line-height: 1.05; }
.auth-side p { color: var(--muted); max-width: 560px; line-height: 1.7; }
.auth-tips { display:inline-flex; flex-direction:column; gap: 10px; margin-top: 18px; padding: 16px 18px; border-radius: 18px; }
.auth-card { padding: 28px; border-radius: 24px; }
.stack-form { display:flex; flex-direction:column; gap: 14px; }
.stack-form label { display:flex; flex-direction:column; gap: 8px; color: var(--muted); font-size: 14px; }
.stack-form input, .stack-form select {
  background: rgba(255,255,255,0.04); border:1px solid var(--line); color: var(--text);
  border-radius: 14px; padding: 14px 16px; font: inherit;
}
.form-message { margin-top: 12px; color: #fbbf24; min-height: 20px; }
.app-body { display:grid; grid-template-columns: 280px 1fr; gap: 20px; padding: 20px; }
.sidebar { min-height: calc(100vh - 40px); border-radius: 26px; padding: 20px; position: sticky; top: 20px; }
.menu { display:flex; flex-direction:column; gap: 10px; margin: 28px 0; }
.menu-link {
  padding: 14px 16px; border-radius: 14px; color: var(--muted); cursor:pointer; border: 1px solid transparent;
}
.menu-link.active, .menu-link:hover { color: var(--text); background: rgba(255,255,255,0.05); border-color: var(--line); }
.app-main { padding-right: 8px; }
.page-head { display:flex; justify-content:space-between; gap: 20px; align-items:center; margin: 6px 0 18px; }
.page-head h1 { margin: 4px 0 0; font-size: 38px; }
.banner {
  border-radius: 22px; padding: 18px 20px; margin-bottom: 18px; border:1px solid var(--line);
}
.banner.premium { background: linear-gradient(135deg, rgba(94,234,212,0.12), rgba(59,130,246,0.12)); }
.stats-grid { display:grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.stat-card, .panel { border-radius: 24px; padding: 22px; }
.stat-card { background: rgba(255,255,255,0.04); border: 1px solid var(--line); }
.stat-card h4 { margin: 10px 0 8px; font-size: 30px; }
.stat-card p { margin: 0; color: var(--muted); }
.two-col { display:grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 18px; }
.panel-head { display:flex; justify-content:space-between; align-items:center; gap: 12px; margin-bottom: 16px; }
.panel-head h3 { margin: 0; }
.check-list { display:flex; flex-direction:column; gap: 12px; }
.check-item {
  display:flex; justify-content:space-between; align-items:center; padding: 14px 16px; border-radius: 16px;
  background: rgba(255,255,255,0.04); border:1px solid var(--line);
}
.check-item.done { border-color: rgba(34,197,94,0.28); }
.plan-box, .subscription-box { display:flex; flex-direction:column; gap: 12px; }
.table-list { display:flex; flex-direction:column; gap: 12px; }
.table-row {
  display:grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 12px; align-items:center;
  padding: 14px 16px; border-radius: 16px; background: rgba(255,255,255,0.04); border: 1px solid var(--line);
}
.table-row.compact { grid-template-columns: 1.5fr 1fr 1fr; }
.table-row.two { grid-template-columns: 1fr 1fr; }
.cell-title { font-weight: 700; }
.inbox-layout { display:grid; grid-template-columns: 360px 1fr; gap: 16px; }
.conversation-item {
  padding: 16px; border-radius: 16px; background: rgba(255,255,255,0.04); border:1px solid var(--line); cursor:pointer;
}
.conversation-item.active { border-color: rgba(94,234,212,0.28); background: rgba(94,234,212,0.08); }
.messages-box { display:flex; flex-direction:column; gap: 12px; min-height: 420px; }
.messages-box.empty { justify-content:center; align-items:center; color: var(--muted); }
.message-bubble {
  max-width: 70%; padding: 14px 16px; border-radius: 18px; border:1px solid var(--line); line-height: 1.5;
}
.message-bubble.inbound { align-self:flex-start; background: rgba(255,255,255,0.04); }
.message-bubble.outbound { align-self:flex-end; background: rgba(94,234,212,0.1); }
.status-dot { width: 10px; height: 10px; border-radius: 50%; display:inline-block; margin-right: 8px; }
.mt-20 { margin-top: 20px; }
.hidden { display:none; }
.modal {
  position: fixed; inset: 0; background: rgba(1, 5, 10, 0.65); display:grid; place-items:center; padding: 20px;
}
.modal-card { width: min(520px, 100%); padding: 24px; border-radius: 24px; }
@media (max-width: 1100px) {
  .hero-wrapper, .auth-layout, .app-body, .two-col, .inbox-layout { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: 1fr; }
  .sidebar { position: static; min-height: auto; }
}
@media (max-width: 720px) {
  .topbar, .hero-wrapper, .features, .app-body { padding-left: 14px; padding-right: 14px; }
  .hero-copy h1, .auth-side h1 { font-size: 40px; }
  .stats-grid { grid-template-columns: 1fr; }
  .table-row, .table-row.compact, .table-row.two { grid-template-columns: 1fr; }
  .page-head { flex-direction: column; align-items: flex-start; }
}

.tab-section { display:none; }
.tab-section.active { display:block; }