:root {
  --bg: #0b0f14;
  --surface: #121821;
  --surface-2: #18202b;
  --border: #232d3a;
  --text: #e6edf3;
  --muted: #8b98a8;
  --accent: #10b981;
  --accent-ink: #052e22;
  --up: #22c55e;
  --down: #ef4444;
  --warn: #f59e0b;
  --info: #38bdf8;
  --radius: 12px;
  --shadow: 0 1px 2px rgb(0 0 0 / .3);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f7fa;
    --surface: #ffffff;
    --surface-2: #f0f3f7;
    --border: #e1e6ed;
    --text: #0f172a;
    --muted: #5b6878;
    --accent: #059669;
    --accent-ink: #ffffff;
    --up: #16a34a;
    --down: #dc2626;
    --warn: #b45309;
    --info: #0369a1;
    --shadow: 0 1px 2px rgb(15 23 42 / .06);
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "IBM Plex Sans Arabic", system-ui, -apple-system, "Segoe UI", Tahoma, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.num, td, .kpi-value, .facts dd { font-variant-numeric: tabular-nums; }
.ltr { direction: ltr; unicode-bidi: isolate; display: inline-block; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.up { color: var(--up); }
.down { color: var(--down); }
.error { color: var(--down); margin: 0; }

/* ---------- الأزرار والحقول ---------- */
.btn {
  font: inherit;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  padding: 7px 14px;
  border-radius: 9px;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color .15s, background .15s, opacity .15s;
}
.btn:hover { border-color: var(--muted); }
.btn:disabled { opacity: .5; cursor: progress; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.danger { background: transparent; border-color: color-mix(in srgb, var(--down) 50%, transparent); color: var(--down); }
.btn.danger:hover { background: color-mix(in srgb, var(--down) 12%, transparent); }
.btn.ghost { background: transparent; }
.btn.small { padding: 4px 10px; font-size: 13px; }

input, select, textarea {
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 7px 10px;
  min-width: 0;
}
input:focus, select:focus, textarea:focus, .btn:focus-visible { outline: 2px solid color-mix(in srgb, var(--accent) 60%, transparent); outline-offset: 1px; }
input[type=number] { direction: ltr; text-align: right; }

/* ---------- الدخول ---------- */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card {
  width: min(360px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  display: grid;
  gap: 12px;
  text-align: center;
  box-shadow: var(--shadow);
}
.login-card h1 { margin: 4px 0 0; font-size: 20px; }
.login-card p { margin: 0; }

/* ---------- الشريط العلويّ ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 10;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: 9px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
}
.brand-mark.big { width: 48px; height: 48px; font-size: 22px; margin: 0 auto; }
.brand-name { font-weight: 600; }
.brand-sub { font-size: 12px; color: var(--muted); }
.top-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.badge {
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
}
.badge.paper { color: var(--info); border-color: color-mix(in srgb, var(--info) 40%, transparent); }
.badge.testnet { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }
.badge.live { color: #fff; background: var(--down); border-color: var(--down); }

.pill { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); }
.pill i { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.pill.on i { background: var(--up); box-shadow: 0 0 0 3px color-mix(in srgb, var(--up) 25%, transparent); }
.pill.off i { background: var(--warn); }
.pill.stale i { background: var(--down); }

.banner { padding: 10px 20px; font-weight: 500; font-size: 14px; }
.banner.danger { background: color-mix(in srgb, var(--down) 14%, var(--bg)); color: var(--down); }
.banner.warn { background: color-mix(in srgb, var(--warn) 14%, var(--bg)); color: var(--warn); }

/* ---------- التبويبات ---------- */
.tabs {
  display: flex;
  gap: 4px;
  padding: 8px 20px 0;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs button {
  font: inherit;
  background: none;
  border: none;
  color: var(--muted);
  padding: 8px 12px 10px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.tabs button.active { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }

main { padding: 20px; max-width: 1280px; margin: 0 auto; }
.tab { display: none; }
.tab.active { display: block; }

/* ---------- البطاقات ---------- */
.kpis {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.kpi {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
}
.kpi-label { color: var(--muted); font-size: 13px; }
.kpi-value { font-size: 24px; font-weight: 600; margin-top: 2px; direction: ltr; text-align: right; }
.kpi-sub { color: var(--muted); font-size: 12px; min-height: 18px; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.panel h2 { font-size: 16px; margin: 0; font-weight: 600; }
.panel > p { margin: 0 0 12px; }
.count { color: var(--muted); font-weight: 400; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.empty { color: var(--muted); text-align: center; margin: 10px 0 4px; }
.note { color: var(--muted); font-size: 13px; margin: 10px 0 0; }

/* ---------- الجداول ---------- */
.table-wrap { overflow-x: auto; margin: 0 -4px; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
  text-align: right;
  color: var(--muted);
  font-weight: 500;
  font-size: 12px;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.table td { padding: 9px 8px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.table tr:last-child td { border-bottom: none; }
.table td.pair { font-weight: 600; }
.table td .sub { display: block; font-size: 11px; color: var(--muted); }
.tag {
  display: inline-block;
  font-size: 11px;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--muted);
  border: 1px solid var(--border);
}
.tag.buy { color: var(--up); border-color: color-mix(in srgb, var(--up) 40%, transparent); }
.tag.trail { color: var(--info); border-color: color-mix(in srgb, var(--info) 40%, transparent); }
.check-list { display: flex; gap: 4px; flex-wrap: wrap; margin-top: 2px; }
.check-list span { font-size: 11px; color: var(--muted); }
.check-list span.ok::before { content: "✓ "; color: var(--up); }
.check-list span.no::before { content: "✗ "; color: var(--down); }

/* ---------- الأحداث ---------- */
.events { list-style: none; margin: 0; padding: 0; }
.events li {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 10px;
  align-items: baseline;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.events li:last-child { border-bottom: none; }
.events time { color: var(--muted); font-size: 12px; white-space: nowrap; direction: ltr; }
.events .lvl { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); align-self: center; }
.events .lvl.trade { background: var(--accent); }
.events .lvl.warn { background: var(--warn); }
.events .lvl.error { background: var(--down); }
.events b { font-weight: 600; margin-left: 6px; }

/* ---------- الرسوم ---------- */
.chart { width: 100%; height: 460px; }
.chart.short { height: 260px; }
.legend { display: flex; gap: 14px; font-size: 12px; color: var(--muted); flex-wrap: wrap; }
.legend i { display: inline-block; width: 12px; height: 3px; border-radius: 2px; vertical-align: middle; margin-left: 4px; }

/* ---------- الاختبار الرجعيّ ---------- */
.bt-form { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; }
.bt-form label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
.bt-form input, .bt-form select { width: 150px; }

/* ---------- الإعدادات ---------- */
#settings-form { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); align-items: start; }
#settings-form fieldset {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  margin: 0;
  padding: 14px 16px 6px;
  min-width: 0;
}
#settings-form legend { font-weight: 600; padding: 0 6px; }
.field { display: grid; grid-template-columns: 1fr 150px; gap: 10px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border); }
.field:last-child { border-bottom: none; }
.field.wide { grid-template-columns: 1fr; }
.field label { font-size: 14px; }
.field .help { display: block; font-size: 12px; color: var(--muted); line-height: 1.5; }
.field input[type=number], .field select { width: 100%; }
.field select.long { width: 100%; }
.switch { justify-self: end; position: relative; width: 42px; height: 24px; }
.switch input { opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; position: absolute; inset: 0; z-index: 1; }
.switch span { position: absolute; inset: 0; background: var(--border); border-radius: 999px; transition: background .15s; }
.switch span::after { content: ""; position: absolute; top: 3px; right: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; transition: transform .15s; }
.switch input:checked + span { background: var(--accent); }
.switch input:checked + span::after { transform: translateX(-18px); }

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 999px; padding: 2px 6px 2px 10px; font-size: 13px; direction: ltr;
}
.chip button { border: none; background: none; color: var(--muted); cursor: pointer; font-size: 15px; line-height: 1; padding: 0 2px; }
.chip button:hover { color: var(--down); }
.chip-add { display: flex; gap: 6px; margin-top: 8px; }
.chip-add input { flex: 1; direction: ltr; text-align: right; }

.settings-actions { display: flex; gap: 10px; align-items: center; margin: 16px 0; flex-wrap: wrap; }

.facts { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; font-size: 14px; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; }

/* ---------- التنبيه ---------- */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 14px;
  z-index: 50;
  max-width: calc(100% - 32px);
  box-shadow: 0 6px 24px rgb(0 0 0 / .25);
}
.toast.error { background: var(--down); color: #fff; }

@media (max-width: 640px) {
  .topbar { padding: 10px 16px; }
  .tabs { padding: 6px 16px 0; }
  main { padding: 16px; }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .kpi { padding: 12px; }
  .kpi-value { font-size: 19px; }
  .chart { height: 340px; }
  #settings-form { grid-template-columns: 1fr; }
  .field { grid-template-columns: 1fr 120px; }
  .bt-form input, .bt-form select { width: 130px; }
}