:root {
  --bg: #0f172a;
  --panel: #ffffff;
  --soft: #f8fafc;
  --text: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --primary: #0f172a;
  --accent: #06b6d4;
  --accent-2: #8b5cf6;
  --danger: #dc2626;
  --success: #059669;
  --warning: #d97706;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: linear-gradient(180deg, #f8fafc 0%, #eef2ff 100%);
  color: var(--text);
}
button, input, select, textarea {
  font: inherit;
}
button { cursor: pointer; }
.hidden { display: none !important; }
.app-shell { min-height: 100vh; }
.auth-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 32px;
  align-items: center;
  padding: 32px;
  max-width: 1200px;
  margin: 0 auto;
}
.hero-card, .form-card, .card {
  background: rgba(255,255,255,.92);
  border: 1px solid rgba(226,232,240,.9);
  border-radius: 28px;
  box-shadow: 0 20px 60px rgba(15,23,42,.08);
}
.hero-card { padding: 40px; }
.form-card { padding: 32px; }
.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: .02em;
}
.logo-badge {
  width: 42px; height: 42px; border-radius: 16px;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  box-shadow: 0 16px 30px rgba(6,182,212,.25);
}
.title-xl {
  font-size: 48px;
  line-height: 1.08;
  margin: 18px 0;
  font-weight: 800;
}
.title-gradient {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead {
  color: var(--muted);
  line-height: 1.85;
  font-size: 16px;
}
.feature-list {
  display: grid;
  gap: 12px;
  margin-top: 28px;
  color: #334155;
}
.feature-item { display: flex; gap: 12px; align-items: center; }
.dot {
  width: 10px; height: 10px; border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.form-title { font-size: 28px; margin: 0 0 8px; font-weight: 800; }
.form-subtitle { margin: 0 0 24px; color: var(--muted); }
.field { display: grid; gap: 8px; margin-bottom: 16px; }
.label { font-size: 14px; color: #334155; font-weight: 600; }
.input, .select, .textarea {
  width: 100%; border: 1px solid var(--line); background: #fff;
  border-radius: 16px; padding: 13px 14px; outline: none;
}
.textarea { min-height: 90px; resize: vertical; }
.input:focus, .select:focus, .textarea:focus { border-color: #94a3b8; box-shadow: 0 0 0 3px rgba(148,163,184,.15); }
.btn {
  border: 0; border-radius: 16px; padding: 12px 16px; font-weight: 700;
  transition: .18s ease; text-decoration: none;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { transform: translateY(-1px); background: #020617; }
.btn-secondary { background: #fff; border: 1px solid var(--line); color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-soft { background: #f1f5f9; color: #0f172a; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }
.auth-actions { display: grid; gap: 12px; margin-top: 12px; }
.link-row { display: flex; justify-content: space-between; align-items: center; font-size: 14px; color: var(--muted); margin-bottom: 12px; }
.notice {
  margin-top: 16px; padding: 12px 14px; border-radius: 14px;
  background: #f8fafc; color: #334155; font-size: 14px;
}
.layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 100vh;
}
.sidebar {
  background: rgba(255,255,255,.88);
  border-right: 1px solid var(--line);
  backdrop-filter: blur(10px);
  padding: 20px 16px;
}
.sidebar-logo { margin-bottom: 24px; }
.menu { display: grid; gap: 6px; }
.menu-btn {
  border: 0; background: transparent; color: #334155; text-align: left;
  border-radius: 16px; padding: 12px 14px; font-weight: 600;
}
.menu-btn.active { background: #ecfeff; color: #0f766e; }
.menu-btn:hover { background: #f8fafc; }
.sidebar-upgrade {
  margin-top: 24px; padding: 18px; border-radius: 22px; background: #0f172a; color: #fff;
}
.main {
  display: flex; flex-direction: column;
}
.topbar {
  display: flex; justify-content: space-between; gap: 16px; align-items: center;
  padding: 22px 28px; background: rgba(255,255,255,.82); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; backdrop-filter: blur(10px); z-index: 10;
}
.page-title { font-size: 28px; font-weight: 800; margin: 0; }
.page-subtitle { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.topbar-right { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.balance-pill { padding: 10px 14px; border-radius: 16px; background: #ecfdf5; color: #047857; font-weight: 700; }
.user-pill { padding: 8px 12px; border-radius: 16px; background: #fff; border: 1px solid var(--line); }
.content { padding: 28px; display: grid; gap: 18px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.stat-card { padding: 22px; }
.stat-top { display: flex; justify-content: space-between; align-items: center; }
.stat-title { color: var(--muted); font-size: 14px; }
.stat-value { font-size: 32px; font-weight: 800; margin-top: 10px; }
.stat-sub { color: var(--muted); font-size: 13px; margin-top: 6px; }
.panel-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 16px; }
.card { padding: 22px; }
.card h3 { margin: 0 0 6px; font-size: 20px; }
.card p.meta { margin: 0 0 18px; color: var(--muted); }
.grid-3, .grid-2 { display: grid; gap: 14px; }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.mini-box {
  background: var(--soft); border-radius: 20px; padding: 18px;
}
.mini-title { color: var(--muted); font-size: 13px; }
.mini-value { font-weight: 800; font-size: 24px; margin-top: 8px; }
.progress-wrap { margin-top: 18px; }
.progress-bar { height: 12px; border-radius: 999px; background: #e2e8f0; overflow: hidden; }
.progress-inner { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 20px; }
.table { width: 100%; border-collapse: collapse; background: #fff; min-width: 980px; }
.table th, .table td { padding: 14px 16px; border-bottom: 1px solid #f1f5f9; text-align: left; font-size: 14px; }
.table th { background: #f8fafc; color: #475569; position: sticky; top: 0; }
.table tr:hover td { background: #fcfcfd; }
.toolbar { display: grid; grid-template-columns: 1fr 180px 180px auto; gap: 12px; }
.empty {
  min-height: 260px; display: grid; place-items: center; text-align: center; color: var(--muted);
}
.tag {
  display: inline-block; padding: 6px 10px; border-radius: 999px; font-size: 12px; font-weight: 700;
}
.tag-success { background: #dcfce7; color: #166534; }
.tag-warn { background: #fef3c7; color: #92400e; }
.tag-muted { background: #e2e8f0; color: #334155; }
.key-grid, .model-grid, .order-grid, .admin-grid { display: grid; gap: 16px; }
.key-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.model-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.order-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
.admin-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.code-box {
  border-radius: 16px; background: #f8fafc; padding: 14px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px; overflow: auto;
}
.kv { display: grid; gap: 10px; margin-top: 14px; }
.kv-row { display: flex; justify-content: space-between; gap: 16px; font-size: 14px; }
.kv-row span:first-child { color: var(--muted); }
.form-grid { display: grid; gap: 14px; }
.inline-form { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.toast {
  position: fixed; right: 20px; bottom: 20px; min-width: 260px; max-width: 420px;
  padding: 14px 16px; border-radius: 16px; color: #fff; background: #0f172a; box-shadow: 0 20px 60px rgba(15,23,42,.26);
}
.code-inline { font-family: ui-monospace, monospace; background: #f1f5f9; padding: 2px 6px; border-radius: 8px; }
.small { font-size: 13px; color: var(--muted); }
.section-actions { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 14px; align-items: center; }
@media (max-width: 1100px) {
  .stats-grid, .grid-3, .key-grid, .model-grid, .order-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .panel-grid, .admin-grid { grid-template-columns: 1fr; }
  .toolbar { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .auth-shell { grid-template-columns: 1fr; padding: 20px; }
  .layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .stats-grid, .grid-3, .grid-2, .key-grid, .model-grid, .order-grid { grid-template-columns: 1fr; }
  .toolbar, .inline-form { grid-template-columns: 1fr; }
  .topbar { padding: 18px; }
  .content { padding: 18px; }
  .title-xl { font-size: 34px; }
}