/* سكالبر BTC — ثيم داكن RTL */
:root {
  --bg: #0b0e14;
  --bg2: #121722;
  --card: #171d2b;
  --border: #232c40;
  --text: #e8ecf4;
  --muted: #8b95ab;
  --green: #16c784;
  --red: #ea3943;
  --amber: #f0b90b;
  --blue: #4a8cff;
  --radius: 12px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.6;
}
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 0.85em; }

/* ---------- الدخول ---------- */
.login-screen {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at top, #141b2d, var(--bg));
  z-index: 100;
}
.login-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
  width: 340px;
  text-align: center;
}
.login-logo { font-size: 44px; color: var(--amber); margin-bottom: 8px; }
.login-box h1 { font-size: 22px; margin-bottom: 4px; }
.login-box p { margin-bottom: 20px; }
.login-box input {
  width: 100%; margin-bottom: 14px;
}
.error-msg { color: var(--red); margin-top: 10px; min-height: 1.4em; font-size: 0.9em; }

/* صندوق إعداد أول استخدام — أوسع من صندوق الدخول ونصه محاذٍ لليمين */
.setup-box { width: 420px; max-width: 92vw; text-align: right; max-height: 90vh; overflow-y: auto; }
.setup-box h1 { text-align: center; font-size: 19px; }
.setup-box > p.muted { text-align: center; margin-bottom: 18px; }
.setup-h2 { font-size: 14px; color: var(--amber); margin: 18px 0 10px; padding-top: 12px; border-top: 1px dashed var(--border); }
.setup-box .setup-h2:first-of-type { border-top: none; padding-top: 0; margin-top: 4px; }

/* ---------- الهيدر ---------- */
.topbar {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 10px 20px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 50;
}
.brand { font-weight: 700; font-size: 17px; color: var(--amber); display: flex; align-items: center; gap: 8px; }
.brand span { color: var(--text); }
.ticker { display: flex; align-items: baseline; gap: 10px; }
.price { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.price.up { color: var(--green); }
.price.down { color: var(--red); }
.change { font-size: 13px; color: var(--muted); }
.change.up { color: var(--green); }
.change.down { color: var(--red); }
.topbar-status { margin-inline-start: auto; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.clock { font-variant-numeric: tabular-nums; color: var(--muted); font-size: 13px; }

.badge {
  padding: 3px 10px; border-radius: 20px;
  font-size: 12px; font-weight: 600;
  background: var(--card); border: 1px solid var(--border);
}
.badge-warn { background: rgba(240,185,11,.15); color: var(--amber); border-color: rgba(240,185,11,.4); }
.badge-good { background: rgba(22,199,132,.15); color: var(--green); border-color: rgba(22,199,132,.4); }
.badge-best { background: rgba(22,199,132,.3); color: var(--green); border-color: var(--green); }
.badge-bad  { background: rgba(234,57,67,.15); color: var(--red); border-color: rgba(234,57,67,.4); }

.lock-banner {
  background: rgba(234,57,67,.15);
  border-bottom: 1px solid var(--red);
  color: #ff8a90;
  padding: 10px 20px;
  font-weight: 600;
  text-align: center;
}

/* ---------- التبويبات ---------- */
.tabs {
  display: flex; gap: 4px; flex-wrap: wrap;
  padding: 10px 20px 0;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
}
.tab {
  background: none; border: none; color: var(--muted);
  padding: 10px 16px; cursor: pointer;
  font-size: 14px; font-weight: 600; font-family: inherit;
  border-bottom: 2px solid transparent;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--amber); border-bottom-color: var(--amber); }

main { padding: 20px; max-width: 1300px; margin: 0 auto; }

/* ---------- البطاقات ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin-bottom: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
}
.cards .card { margin-bottom: 0; }
.card h2 { font-size: 15px; margin-bottom: 12px; color: var(--text); }
.card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.card-head h2 { margin-bottom: 0; }
.stat-label { color: var(--muted); font-size: 13px; margin-bottom: 6px; }
.stat-value { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat-value.up { color: var(--green); }
.stat-value.down { color: var(--red); }

/* ---------- النماذج ---------- */
label { display: block; margin-bottom: 12px; font-size: 13px; color: var(--muted); }
input, select, textarea {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 9px 12px;
  font-size: 14px;
  font-family: inherit;
  margin-top: 4px;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--blue); }
.input-row { display: flex; gap: 8px; margin-top: 4px; }
.input-row input { margin-top: 0; flex: 1; }
.input-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.check-label { display: flex; align-items: center; gap: 8px; }
.check-label input { width: auto; margin: 0; }

.btn {
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { border-color: var(--blue); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--amber); border-color: var(--amber); color: #1a1a1a; }
.btn-primary:hover { filter: brightness(1.1); border-color: var(--amber); }
.btn-block { width: 100%; margin-top: 8px; }
.btn-sm { padding: 5px 12px; font-size: 13px; }
.btn-ghost { background: none; border-color: transparent; color: var(--muted); }
.btn-danger { color: var(--red); border-color: rgba(234,57,67,.4); }

/* ---------- الجداول ---------- */
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th {
  text-align: right; color: var(--muted); font-weight: 600;
  padding: 8px 10px; border-bottom: 1px solid var(--border);
}
.table td { padding: 8px 10px; border-bottom: 1px solid var(--border); font-variant-numeric: tabular-nums; }
.table tr:last-child td { border-bottom: none; }
.table .up { color: var(--green); }
.table .down { color: var(--red); }
.table-scroll { max-height: 480px; overflow-y: auto; }

/* ---------- الشارت ---------- */
.chart-toolbar { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.tf-group { display: flex; gap: 4px; }
.tf-btn.active { background: var(--amber); border-color: var(--amber); color: #1a1a1a; }
.chart-grid { display: grid; grid-template-columns: 1fr 320px; gap: 16px; align-items: start; }
.chart-card { padding: 8px; }
#chartContainer { width: 100%; height: 480px; }
.checklist { list-style: none; }
.checklist li {
  padding: 8px 10px; margin-bottom: 6px;
  border-radius: 8px; background: var(--bg2);
  font-size: 13px;
  display: flex; justify-content: space-between; gap: 8px;
}
.checklist li .val { font-weight: 700; }
.checklist li.pass .val { color: var(--green); }
.checklist li.failed .val { color: var(--red); }
.verdict { padding: 12px; border-radius: 8px; text-align: center; font-weight: 700; margin: 10px 0; }
.verdict.good { background: rgba(22,199,132,.15); color: var(--green); }
.verdict.bad { background: rgba(234,57,67,.12); color: #ff8a90; }
.hint {
  font-size: 12.5px; color: var(--muted);
  background: var(--bg2); border-radius: 8px;
  padding: 10px 12px; margin-top: 10px;
}
.hint code {
  display: inline-block; direction: ltr;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 6px; padding: 2px 8px; margin: 4px 0;
  font-size: 12px; color: var(--text);
  max-width: 100%; overflow-x: auto; white-space: nowrap;
}

/* ---------- الحاسبة والتداول ---------- */
.calc-grid, .trade-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.calc-results .row {
  display: flex; justify-content: space-between;
  padding: 8px 4px; border-bottom: 1px dashed var(--border);
  font-size: 14px;
}
.calc-results .row b { font-variant-numeric: tabular-nums; }
.calc-results .verdict { margin-top: 12px; }
.side-toggle { display: flex; gap: 8px; margin-bottom: 14px; }
.side-btn { flex: 1; opacity: 0.5; }
.side-btn.active { opacity: 1; }
.side-btn.buy.active { background: rgba(22,199,132,.2); border-color: var(--green); color: var(--green); }
.side-btn.sell.active { background: rgba(234,57,67,.2); border-color: var(--red); color: var(--red); }
.order-estimate { font-size: 13px; padding: 8px 0; min-height: 1.5em; }
.warn-msg {
  background: rgba(240,185,11,.12); border: 1px solid rgba(240,185,11,.35);
  color: var(--amber); border-radius: 8px;
  padding: 10px 12px; font-size: 13px; margin-bottom: 12px;
}
.ok-msg { color: var(--green); font-size: 13px; padding: 8px 0; }
#orderMsg .error-msg { text-align: right; }

/* الجلسات */
#sessionsTable tr.now { background: rgba(240,185,11,.08); }
#sessionsTable tr.now td:first-child::before { content: "◀ الآن "; color: var(--amber); font-weight: 700; }

/* ---------- المودال ---------- */
.modal {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,.6);
  display: flex; align-items: center; justify-content: center;
}
.modal-box {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px; width: 400px; max-width: 92vw;
}
.modal-box h2 { margin-bottom: 14px; }
#confirmDetails .row { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px dashed var(--border); font-size: 14px; }
.modal-actions { display: flex; gap: 10px; margin-top: 18px; }
.modal-actions .btn { flex: 1; }

/* ---------- استجابة ---------- */
@media (max-width: 900px) {
  .chart-grid, .calc-grid, .trade-grid { grid-template-columns: 1fr; }
  #chartContainer { height: 340px; }
  .topbar { gap: 10px; }
  .topbar-status { margin-inline-start: 0; width: 100%; }
}