:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #11162a;
  --bg-card: #161c33;
  --bg-soft: #1c2440;
  --border: #232a4a;
  --border-strong: #2e3760;
  --text-primary: #e6e9f5;
  --text-secondary: #9ba3c7;
  --text-muted: #6b7396;
  --accent: #F7931A;
  --accent-2: #FFB347;
  --green: #22c55e;
  --red: #ef4444;
  --yellow: #facc15;
  --blue: #60a5fa;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: radial-gradient(1400px 700px at 10% -10%, rgba(247,147,26,.10), transparent 60%),
              radial-gradient(900px 500px at 110% 110%, rgba(99,102,241,.12), transparent 60%),
              var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

/* Topbar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  background: rgba(10,14,26,.7);
  backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 50;
}
.topbar .brand { display: flex; align-items: center; gap: 10px; }
.topbar .brand svg { width: 30px; height: 30px; }
.topbar .brand h1 { margin: 0; font-size: 16px; letter-spacing: 1px; }
.topbar .brand .tag { color: var(--text-secondary); font-size: 11px; }
.topbar .right { display: flex; align-items: center; gap: 12px; }
.account-picker, .user-menu {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: 10px; padding: 6px 10px; font-size: 13px;
}
.account-picker select {
  background: transparent; color: var(--text-primary);
  border: 0; outline: none; font-size: 13px; padding: 2px;
}
.user-menu .role { font-size: 11px; color: var(--accent); }
.btn-ghost {
  background: transparent; color: var(--text-secondary);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 10px; cursor: pointer; font-size: 12px;
}
.btn-ghost:hover { color: var(--text-primary); border-color: var(--border-strong); }

/* Layout */
.layout { display: grid; grid-template-columns: 220px 1fr; min-height: calc(100vh - 60px); }
.sidebar {
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  padding: 18px 12px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 10px;
  color: var(--text-secondary); cursor: pointer;
  font-size: 14px; margin-bottom: 4px;
  transition: background .12s, color .12s;
}
.nav-item:hover { background: var(--bg-card); color: var(--text-primary); }
.nav-item.active {
  background: linear-gradient(135deg, rgba(247,147,26,.18), rgba(255,179,71,.10));
  color: var(--accent); border: 1px solid rgba(247,147,26,.35);
}
.nav-item i { width: 18px; text-align: center; }
.nav-item.admin-only { display: none; }
body.is-admin .nav-item.admin-only { display: flex; }

.main { padding: 22px 28px; max-width: 1280px; }
.page { display: none; }
.page.active { display: block; }
.page h2 {
  margin: 0 0 4px; font-size: 22px; font-weight: 600;
  display: flex; align-items: center; gap: 10px;
}
.page .sub { color: var(--text-secondary); font-size: 13px; margin-bottom: 22px; }

/* Cards / panels */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 16px;
}
.card h3 {
  margin: 0 0 12px; font-size: 14px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 1px; color: var(--text-secondary);
}
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

.stat-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; }
.stat-card .label { color: var(--text-secondary); font-size: 12px; text-transform: uppercase; letter-spacing: 1px; }
.stat-card .value { font-size: 22px; font-weight: 600; margin-top: 6px; }
.stat-card .value.green { color: var(--green); }
.stat-card .value.red { color: var(--red); }

/* Forms */
.field { margin-bottom: 14px; display: block; }
.field > label, .field > span { display: block; font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: 10px; padding: 10px 12px; font-size: 14px;
  color: var(--text-primary); outline: none;
  font-family: inherit;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px rgba(247,147,26,.18);
}
.row-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.row-fields-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.checkbox-field {
  display: flex; align-items: center; gap: 8px; cursor: pointer;
  margin-bottom: 14px; color: var(--text-secondary); font-size: 13px;
}
.checkbox-field input { width: 16px; height: 16px; }
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; border: 0; border-radius: 10px;
  padding: 10px 16px; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: opacity .15s, transform .05s;
}
.btn:hover { opacity: .95; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.secondary {
  background: var(--bg-secondary); color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn.danger {
  background: linear-gradient(135deg, #f87171, #ef4444);
}
.btn.small { padding: 6px 10px; font-size: 12px; border-radius: 8px; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }

/* Side selectors */
.side-pill-group { display: flex; gap: 8px; }
.side-pill {
  flex: 1; padding: 10px; text-align: center;
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: 10px; cursor: pointer; font-weight: 600;
  color: var(--text-secondary); transition: all .15s;
}
.side-pill.active.buy { background: rgba(34,197,94,.18); color: var(--green); border-color: rgba(34,197,94,.5); }
.side-pill.active.sell { background: rgba(239,68,68,.18); color: var(--red); border-color: rgba(239,68,68,.5); }
.market-pill-group { display: flex; gap: 6px; margin-bottom: 14px; }
.market-pill {
  padding: 6px 14px; border-radius: 8px; cursor: pointer; font-size: 12px;
  background: var(--bg-secondary); border: 1px solid var(--border);
  color: var(--text-secondary);
}
.market-pill.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* Tables */
.table-wrap { overflow-x: auto; }
table {
  width: 100%; border-collapse: collapse; font-size: 13px;
}
th, td {
  padding: 10px 12px; text-align: left;
  border-bottom: 1px solid var(--border);
}
th {
  font-weight: 600; color: var(--text-secondary);
  text-transform: uppercase; letter-spacing: 1px; font-size: 11px;
}
tr:hover td { background: var(--bg-soft); }
.tag {
  display: inline-block; padding: 2px 8px; border-radius: 999px;
  font-size: 11px; font-weight: 600;
}
.tag.ok, .tag.filled, .tag.info { background: rgba(34,197,94,.18); color: var(--green); }
.tag.error { background: rgba(239,68,68,.18); color: var(--red); }
.tag.warn, .tag.pending { background: rgba(250,204,21,.18); color: var(--yellow); }
.tag.spot { background: rgba(96,165,250,.18); color: var(--blue); }
.tag.futures { background: rgba(247,147,26,.18); color: var(--accent); }
.tag.buy { background: rgba(34,197,94,.18); color: var(--green); }
.tag.sell { background: rgba(239,68,68,.18); color: var(--red); }
.tag.admin { background: rgba(247,147,26,.18); color: var(--accent); }
.tag.user { background: var(--bg-soft); color: var(--text-secondary); }
.tag.inactive { background: rgba(239,68,68,.18); color: var(--red); }
.tag.active { background: rgba(34,197,94,.18); color: var(--green); }

.empty {
  padding: 24px; text-align: center; color: var(--text-muted);
  font-size: 13px; border: 1px dashed var(--border); border-radius: 12px;
}

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.6);
  display: none; align-items: center; justify-content: center; z-index: 100;
  padding: 16px;
}
.modal-backdrop.show { display: flex; }
.modal {
  width: 100%; max-width: 520px; max-height: 90vh; overflow-y: auto;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 14px; padding: 22px;
}
.modal h3 { margin: 0 0 16px; font-size: 16px; }
.modal .actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 12px; }

/* Toast */
.toast-stack { position: fixed; bottom: 20px; right: 20px; z-index: 200; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 12px 16px; font-size: 13px;
  box-shadow: 0 10px 30px rgba(0,0,0,.45); max-width: 360px;
  animation: pop-in .2s ease;
}
.toast.ok { border-color: rgba(34,197,94,.4); }
.toast.error { border-color: rgba(239,68,68,.4); }
@keyframes pop-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

/* Grid preset cards */
.preset-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
}
.preset-card {
  padding: 14px; border: 1px solid var(--border); border-radius: 12px;
  background: var(--bg-secondary); cursor: pointer; transition: all .15s;
}
.preset-card:hover { border-color: var(--border-strong); }
.preset-card.active {
  background: linear-gradient(135deg, rgba(247,147,26,.18), rgba(255,179,71,.10));
  border-color: rgba(247,147,26,.55);
}
.preset-card .preset-title { font-weight: 600; font-size: 14px; margin-bottom: 4px; }
.preset-card .preset-sub { font-size: 11px; color: var(--text-secondary); }

/* Price ticker */
.ticker {
  display: flex; align-items: center; gap: 14px;
  background: var(--bg-soft); border: 1px solid var(--border);
  padding: 8px 14px; border-radius: 10px; font-variant-numeric: tabular-nums;
}
.ticker .price { font-weight: 700; font-size: 18px; }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .row-fields, .row-fields-3 { grid-template-columns: 1fr; }
}