:root {
  --primary: #33A0FE;
  --dark: #141517;
  --muted: #908D95;
  --bg: #F4F6F9;
  --surface: #FFFFFF;
  --border: #E6E8EC;
  --danger: #E24B4A;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Tajawal', -apple-system, system-ui, sans-serif;
  background: var(--bg);
  color: var(--dark);
}

/* ── الدخول ── */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 32px;
  width: 320px;
  text-align: center;
}
.login-brand { font-size: 26px; font-weight: 700; }
.login-sub { color: var(--muted); margin: 4px 0 24px; }
.login-card label {
  display: block;
  text-align: right;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 6px;
}
.login-card input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 16px;
  margin-bottom: 18px;
}
.login-card input:focus { outline: none; border-color: var(--primary); }
.login-card button {
  width: 100%;
  padding: 12px;
  background: var(--primary);
  color: #fff;
  border: 0;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
}
.login-error {
  background: #FCEBEB;
  color: var(--danger);
  padding: 10px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  font-size: 14px;
}

/* ── التخطيط ── */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 240px;
  background: var(--dark);
  color: #fff;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.brand { font-size: 20px; font-weight: 700; padding: 0 8px 24px; }
.sidebar nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 14px;
  border-radius: var(--radius);
  color: #C9CBD0;
  text-decoration: none;
  font-size: 15px;
}
.nav-item.active { background: var(--primary); color: #fff; font-weight: 500; }
.nav-item:not(.disabled):not(.active):hover { background: rgba(255,255,255,.07); color: #fff; }
.nav-item.disabled { color: #5C5E66; cursor: default; }
.nav-item.disabled em {
  font-style: normal;
  font-size: 11px;
  background: rgba(255,255,255,.08);
  padding: 2px 7px;
  border-radius: 999px;
}
.logout {
  margin-top: 16px;
  padding: 11px 14px;
  text-align: center;
  color: #C9CBD0;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  font-size: 14px;
}
.logout:hover { background: rgba(255,255,255,.07); color: #fff; }

.content { flex: 1; min-width: 0; }
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 18px 28px;
}
.topbar h1 { margin: 0; font-size: 20px; font-weight: 700; }
.page { padding: 28px; }

/* ── البطاقات ── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.card-label { color: var(--muted); font-size: 14px; margin-bottom: 10px; }
.card-value { font-size: 30px; font-weight: 700; }
.card-alert { border-color: var(--danger); }
.card-alert .card-value { color: var(--danger); }
.hint { color: var(--muted); font-size: 14px; margin-top: 24px; }

/* ── شارة العدد في القائمة ── */
.nav-item .badge {
  font-style: normal;
  font-size: 12px;
  background: var(--danger);
  color: #fff;
  padding: 1px 8px;
  border-radius: 999px;
}
.nav-item.active .badge { background: rgba(255,255,255,.25); }

/* ── الإيصالات ── */
.empty {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  color: var(--muted);
  font-size: 16px;
}
.receipts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 18px;
}
.receipt {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.receipt-photo { display: block; background: #000; }
.receipt-photo img {
  width: 100%;
  max-height: 280px;
  object-fit: contain;
  display: block;
}
.receipt-body { padding: 16px; }
.receipt-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.receipt-id { color: var(--muted); font-size: 14px; }
.receipt-amount { font-size: 18px; font-weight: 700; color: var(--primary); }
.receipt-row { font-size: 14px; margin-bottom: 4px; }
.receipt-muted { color: var(--muted); font-size: 13px; }
.receipt-actions { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.receipt-actions form { display: flex; gap: 8px; margin: 0; }
.reject-form input {
  flex: 1;
  min-width: 0;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 13px;
}
.receipt-actions button {
  border: 0;
  border-radius: var(--radius);
  padding: 9px 16px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
}
.btn-approve { background: #1D9E75; color: #fff; width: 100%; }
.btn-reject { background: #FCEBEB; color: var(--danger); }

/* ── أزرار وعناصر عامة ── */
.btn-primary {
  background: var(--primary); color: #fff; border: 0; border-radius: var(--radius);
  padding: 10px 20px; font-family: inherit; font-size: 14px; font-weight: 700; cursor: pointer;
}
.btn-ghost {
  background: transparent; color: var(--dark); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 8px 16px; font-family: inherit; font-size: 14px;
  cursor: pointer;
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }

.panel {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; margin-bottom: 24px;
}
.panel h3 { margin: 0 0 14px; font-size: 16px; }
.inline-form { display: flex; gap: 10px; flex-wrap: wrap; }
.inline-form input {
  flex: 1; min-width: 140px; padding: 10px 12px; border: 1px solid var(--border);
  border-radius: var(--radius); font-family: inherit; font-size: 14px;
}
.inline-form input:focus { outline: none; border-color: var(--primary); }

/* ── جدول البيانات ── */
.data {
  width: 100%; border-collapse: collapse; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
}
.data th, .data td { padding: 14px 16px; text-align: right; font-size: 14px; }
.data thead th { background: #FAFBFC; color: var(--muted); font-weight: 500; font-size: 13px; }
.data tbody tr { border-top: 1px solid var(--border); }
.data form { margin: 0; }
.tag { font-size: 12px; padding: 3px 10px; border-radius: 999px; font-weight: 500; }
.tag-on { background: #E1F5EE; color: #0F6E56; }
.tag-off { background: #F1EFE8; color: #5F5E5A; }

/* ── الإعدادات ── */
.settings { display: flex; flex-direction: column; gap: 10px; }
.setting-row {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; margin: 0;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.setting-label { display: flex; flex-direction: column; gap: 3px; min-width: 200px; flex: 1; }
.setting-desc { font-size: 14px; }
.setting-key { font-size: 12px; color: var(--muted); font-family: monospace; direction: ltr; text-align: right; }
.setting-edit { display: flex; gap: 8px; }
.setting-edit input {
  width: 260px; max-width: 50vw; padding: 9px 12px; border: 1px solid var(--border);
  border-radius: var(--radius); font-family: monospace; font-size: 13px; direction: ltr; text-align: right;
}
.setting-edit input:focus { outline: none; border-color: var(--primary); }

/* ── الكورسات ── */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 24px; }
@media (max-width: 700px) { .two-col { grid-template-columns: 1fr; } }
.stack-form { display: flex; flex-direction: column; gap: 8px; }
.stack-form label { font-size: 13px; color: var(--muted); margin-top: 4px; }
.stack-form input, .stack-form select {
  padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--radius);
  font-family: inherit; font-size: 14px; background: #fff;
}
.stack-form input:focus, .stack-form select:focus { outline: none; border-color: var(--primary); }
.stack-form button { margin-top: 10px; }
.teacher-chips { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 6px; }
.chip { background: #EAF2FC; color: #185FA5; font-size: 13px; padding: 4px 12px; border-radius: 999px; }

.crumb { margin-bottom: 18px; font-size: 15px; }
.crumb a { color: var(--primary); text-decoration: none; }
.crumb-meta { color: var(--muted); font-size: 13px; margin-right: 10px; }

.unit {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 14px; overflow: hidden;
}
.unit-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; background: #FAFBFC; border-bottom: 1px solid var(--border);
}
.unit-name { font-weight: 700; font-size: 15px; }
.lessons { padding: 8px 16px 14px; }
.lesson-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 4px; border-bottom: 1px solid var(--border); font-size: 14px;
}
.link-add { color: var(--primary); text-decoration: none; font-size: 13px; white-space: nowrap; }
.link-add:hover { text-decoration: underline; }
.lesson-add { margin-top: 12px; }

/* ── شريط رفع الفيديو ── */
.ubar { height: 6px; background: var(--border); border-radius: 999px; overflow: hidden; margin: -2px 0 4px; }
.ubar span { display: block; height: 100%; width: 0; background: #1D9E75; transition: width .2s; }
.stack-form input[type=file] { padding: 8px; background: #FAFBFC; }

/* ── بنك الأسئلة ── */
.import-box {
  width: 100%; min-height: 220px; padding: 14px; border: 1px solid var(--border);
  border-radius: var(--radius); font-family: monospace; font-size: 13.5px; line-height: 1.8;
  resize: vertical; margin-bottom: 12px; box-sizing: border-box;
}
.import-box:focus { outline: none; border-color: var(--primary); }
.banner-ok {
  background: #E1F5EE; color: #0F6E56; border-radius: var(--radius);
  padding: 14px 16px; margin-bottom: 18px; font-size: 15px;
}
.prev-ok { background: #E1F5EE; color: #0F6E56; padding: 12px 14px; border-radius: var(--radius); font-size: 14px; }
.prev-bad { background: #FCEBEB; color: var(--danger); padding: 14px 16px; border-radius: var(--radius); font-size: 14px; }
.prev-bad ul { margin: 8px 0 0; padding-inline-start: 20px; }
.prev-bad li { margin-bottom: 4px; }