:root {
  --bg: #f4f1ea;
  --surface: #ffffff;
  --primary: #1f6e54;
  --primary-dark: #155442;
  --primary-soft: #e6f0ec;
  --border: #d9d4c7;
  --text: #2b2b2b;
  --muted: #7a7568;
  --star: #f5b301;
  --star-empty: #d8d3c6;
  --danger: #b3261e;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
  --radius: 12px;
  --input-bg: #ffffff;
}

/* الثيم الداكن — يُطبَّق على <html> */
html.dark-theme {
  --bg: #121212;
  --surface: #1e1e1e;
  --primary: #2ea47e;
  --primary-dark: #3fb990;
  --primary-soft: #1a2e26;
  --border: #333333;
  --text: #e0e0e0;
  --muted: #a0a0a0;
  --star: #ffca28;
  --star-empty: #424242;
  --danger: #cf6679;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  --input-bg: #2b2b2b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Tajawal", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
}

.app-header {
  text-align: center;
  padding: 32px 16px 8px;
}

.app-header h1 {
  margin: 0;
  font-size: 1.9rem;
  color: var(--primary-dark);
}

.subtitle {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 1rem;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 16px;
}

/* شريط الأدوات */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.sort-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.sort-label {
  color: var(--muted);
  font-weight: 500;
}

.sort-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.95rem;
  transition: all 0.15s ease;
}

.sort-btn:hover { border-color: var(--primary); }

.sort-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.primary-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 9px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  transition: background 0.15s ease;
}

.primary-btn:hover { background: var(--primary-dark); }

.ghost-btn {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 9px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.95rem;
  transition: all 0.15s ease;
}

.ghost-btn:hover { color: var(--primary); border-color: var(--primary); }

/* نموذج الإضافة */
.add-form-wrapper {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.add-form-wrapper.hidden { display: none; }

.add-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
}

.field { display: flex; flex-direction: column; gap: 4px; }
.field-wide { grid-column: 1 / -1; }

.field label {
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
}

.field input,
.field select {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  background: var(--input-bg);
  color: var(--text);
  transition: background 0.3s, color 0.3s;
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--primary);
}

.form-actions {
  grid-column: 1 / -1;
  display: flex;
  gap: 10px;
  justify-content: flex-start;
}

/* رسالة الحالة */
.status {
  min-height: 22px;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.status.error { color: var(--danger); }
html.dark-theme .status:not(.error) { color: var(--primary-dark); }
html:not(.dark-theme) .status:not(.error) { color: var(--primary); }

/* الجدول */
.table-wrapper {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
  box-shadow: var(--shadow);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: center;
}

thead th {
  background: var(--primary-soft);
  color: var(--primary-dark);
  padding: 14px 10px;
  font-weight: 700;
  font-size: 0.92rem;
  white-space: nowrap;
  border-bottom: 2px solid var(--border);
}

tbody td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--border);
  font-size: 0.98rem;
}

tbody tr:last-child td { border-bottom: none; }

html:not(.dark-theme) tbody tr:hover { background: #faf8f2; }
html.dark-theme tbody tr:hover { background: #252525; }

/* صف التعديل: لا تطبّق hover عليه */
html:not(.dark-theme) tbody tr.edit-row:hover,
html.dark-theme tbody tr.edit-row:hover {
  background: transparent;
}

.topic-cell { text-align: right; }

/* النجوم التفاعلية */
.stars {
  display: inline-flex;
  gap: 2px;
  font-size: 1.2rem;
}

.star-btn {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-size: inherit;
  font-family: inherit;
  line-height: 1;
  transition: transform 0.1s ease;
}

.star-btn:hover { transform: scale(1.3); }
.star-btn.filled { color: var(--star); }
.star-btn.empty  { color: var(--star-empty); }

/* أزرار الإجراءات في الصف */
.edit-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  transition: all 0.15s ease;
}

.edit-btn:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary-dark);
}

.delete-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--danger);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  transition: all 0.15s ease;
}

.delete-btn:hover { background: var(--danger); color: #fff; border-color: var(--danger); }

.empty-row td {
  padding: 32px;
  color: var(--muted);
}

/* ── صف التعديل المضمّن ─────────────────────────────────── */
.edit-row td {
  padding: 0;
  border-bottom: 2px solid var(--primary);
}

.inline-edit-form {
  background: var(--primary-soft);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.inline-edit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  align-items: end;
}

.inline-edit-actions {
  display: flex;
  gap: 10px;
}

/* ضمان توريث ألوان الـ input داخل صف التعديل */
.inline-edit-form .field input,
.inline-edit-form .field select {
  background: var(--input-bg);
  color: var(--text);
  border-color: var(--border);
}

.inline-edit-form .field input:focus,
.inline-edit-form .field select:focus {
  border-color: var(--primary);
}

@media (max-width: 600px) {
  .app-header h1 { font-size: 1.5rem; }
  thead th, tbody td { padding: 10px 6px; font-size: 0.85rem; }
  .inline-edit-grid { grid-template-columns: 1fr 1fr; }
}