/* =========================================
   صدى التعليم - Public CSS
   ========================================= */

:root {
  --sada-primary: #2563eb;
  --sada-primary-dark: #1d4ed8;
  --sada-secondary: #7c3aed;
  --sada-success: #16a34a;
  --sada-warning: #d97706;
  --sada-danger: #dc2626;
  --sada-gray-50: #f8fafc;
  --sada-gray-100: #f1f5f9;
  --sada-gray-200: #e2e8f0;
  --sada-gray-400: #94a3b8;
  --sada-gray-600: #475569;
  --sada-gray-800: #1e293b;
  --sada-white: #ffffff;
  --sada-radius: 12px;
  --sada-radius-sm: 8px;
  --sada-radius-lg: 16px;
  --sada-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.06);
  --sada-shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --sada-font: 'Segoe UI', Tahoma, sans-serif;
  --sada-header-h: 64px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

.sada-app, .sada-auth-wrapper, .sada-whispers-app {
  font-family: var(--sada-font);
  color: var(--sada-gray-800);
  direction: rtl;
  min-height: 100vh;
  background: var(--sada-gray-50);
}

/* ── Header ── */
.sada-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--sada-header-h);
  background: var(--sada-white);
  border-bottom: 1px solid var(--sada-gray-200);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  box-shadow: 0 1px 8px rgba(0,0,0,0.06);
}
.sada-header__brand {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.25rem; font-weight: 700; color: var(--sada-primary);
}
.sada-header__brand i { font-size: 1.5rem; }
.sada-header__nav { display: flex; align-items: center; gap: 8px; }

/* ── Layout ── */
.sada-layout { display: flex; min-height: calc(100vh - var(--sada-header-h)); }
.sada-sidebar {
  width: 260px; flex-shrink: 0;
  background: var(--sada-white);
  border-left: 1px solid var(--sada-gray-200);
  padding: 20px 16px;
  display: flex; flex-direction: column; gap: 12px;
  position: sticky; top: var(--sada-header-h);
  height: calc(100vh - var(--sada-header-h));
  overflow-y: auto;
}
.sada-main {
  flex: 1; padding: 24px;
  max-width: 1100px;
}

/* ── Profile Card ── */
.sada-profile-card {
  display: flex; align-items: center; gap: 12px;
  padding: 12px; background: var(--sada-gray-50);
  border-radius: var(--sada-radius); border: 1px solid var(--sada-gray-200);
}
.sada-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--sada-primary), var(--sada-secondary));
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 700; font-size: 1.1rem;
  flex-shrink: 0;
}
.sada-avatar--student { background: linear-gradient(135deg, #16a34a, #059669); }
.sada-avatar--sm { width: 36px; height: 36px; font-size: 0.9rem; }
.sada-profile-info { display: flex; flex-direction: column; gap: 3px; overflow: hidden; }
.sada-profile-info strong { font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sada-student-id-display { display: flex; align-items: center; gap: 6px; font-size: 0.8rem; color: var(--sada-gray-600); }
.sada-student-id-display code { background: var(--sada-gray-100); padding: 2px 8px; border-radius: 4px; font-size: 0.9rem; letter-spacing: 2px; }

/* ── Sidebar Nav ── */
.sada-sidebar-nav { display: flex; flex-direction: column; gap: 4px; }
.sada-sidebar-link {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; border-radius: var(--sada-radius-sm);
  color: var(--sada-gray-600); text-decoration: none; font-size: 0.9rem;
  transition: all 0.2s;
}
.sada-sidebar-link:hover, .sada-sidebar-link.active {
  background: var(--sada-primary); color: white;
}
.sada-sidebar-link i { width: 18px; }
.sada-sidebar-footer { margin-top: auto; padding-top: 12px; border-top: 1px solid var(--sada-gray-200); text-align: center; }
.sada-plan-badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; }
.sada-plan-badge.free { background: var(--sada-gray-100); color: var(--sada-gray-600); }
.sada-plan-badge.pro { background: linear-gradient(135deg, #f59e0b, #d97706); color: white; }

/* ── Buttons ── */
.sada-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: var(--sada-radius-sm);
  font-size: 0.9rem; font-weight: 600; cursor: pointer;
  border: none; text-decoration: none; transition: all 0.2s;
  white-space: nowrap;
}
.sada-btn--primary { background: var(--sada-primary); color: white; }
.sada-btn--primary:hover { background: var(--sada-primary-dark); transform: translateY(-1px); }
.sada-btn--outline { background: transparent; color: var(--sada-primary); border: 2px solid var(--sada-primary); }
.sada-btn--outline:hover { background: var(--sada-primary); color: white; }
.sada-btn--danger { background: var(--sada-danger); color: white; }
.sada-btn--danger:hover { background: #b91c1c; }
.sada-btn--ghost { background: var(--sada-gray-100); color: var(--sada-gray-600); border: 1px solid var(--sada-gray-200); }
.sada-btn--ghost:hover { background: var(--sada-gray-200); }
.sada-btn--full { width: 100%; justify-content: center; }
.sada-btn--sm { padding: 6px 14px; font-size: 0.8rem; }
.sada-btn--lg { padding: 14px 28px; font-size: 1rem; }
.sada-btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none !important; }

.sada-nav-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: var(--sada-radius-sm);
  background: var(--sada-gray-50); border: 1px solid var(--sada-gray-200);
  color: var(--sada-gray-600); cursor: pointer; font-size: 0.875rem;
  text-decoration: none; position: relative; transition: all 0.2s;
}
.sada-nav-btn:hover { background: var(--sada-gray-100); color: var(--sada-primary); }
.sada-nav-btn--logout { color: var(--sada-danger); }
.sada-badge {
  position: absolute; top: -6px; left: -6px;
  background: var(--sada-danger); color: white;
  font-size: 0.7rem; font-weight: 700; width: 18px; height: 18px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
}
.sada-icon-btn {
  width: 32px; height: 32px; border-radius: var(--sada-radius-sm);
  border: 1px solid var(--sada-gray-200); background: var(--sada-gray-50);
  color: var(--sada-gray-600); cursor: pointer; display: inline-flex;
  align-items: center; justify-content: center; transition: all 0.2s;
}
.sada-icon-btn:hover { background: var(--sada-primary); color: white; border-color: var(--sada-primary); }
.sada-icon-btn--danger:hover { background: var(--sada-danger); border-color: var(--sada-danger); }

/* ── Stats Grid ── */
.sada-stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 28px; }
.sada-stat-card {
  background: var(--sada-white); border-radius: var(--sada-radius);
  padding: 20px; display: flex; align-items: center; gap: 16px;
  box-shadow: var(--sada-shadow); border: 1px solid var(--sada-gray-100);
}
.sada-stat-card > i { font-size: 2rem; }
.sada-stat-card--blue > i { color: var(--sada-primary); }
.sada-stat-card--green > i { color: var(--sada-success); }
.sada-stat-card--orange > i { color: var(--sada-warning); }
.sada-stat-card--purple > i { color: var(--sada-secondary); }
.sada-stat-info { display: flex; flex-direction: column; }
.sada-stat-num { font-size: 1.75rem; font-weight: 700; line-height: 1; }
.sada-stat-label { font-size: 0.8rem; color: var(--sada-gray-400); }

/* ── Section ── */
.sada-section { margin-bottom: 32px; }
.sada-section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--sada-gray-100);
}
.sada-section-header h2 { font-size: 1.1rem; display: flex; align-items: center; gap: 10px; }
.sada-section-header h2 i { color: var(--sada-primary); }

/* ── Groups Grid ── */
.sada-groups-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.sada-group-card {
  background: var(--sada-white); border-radius: var(--sada-radius);
  border: 1px solid var(--sada-gray-200); overflow: hidden;
  box-shadow: var(--sada-shadow); transition: transform 0.2s, box-shadow 0.2s;
}
.sada-group-card:hover { transform: translateY(-3px); box-shadow: var(--sada-shadow-lg); }
.sada-group-card__header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 16px 0; 
}
.sada-group-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: linear-gradient(135deg, var(--sada-primary), var(--sada-secondary));
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 1.3rem;
}
.sada-group-icon--student { background: linear-gradient(135deg, var(--sada-success), #059669); }
.sada-group-actions { display: flex; gap: 4px; }
.sada-group-card__body { padding: 12px 16px; }
.sada-group-card__body h3 { font-size: 1rem; margin-bottom: 8px; }
.sada-teacher-name { font-size: 0.85rem; color: var(--sada-gray-600); margin: 4px 0; }
.sada-group-code {
  display: flex; align-items: center; gap: 8px; margin-top: 8px;
  background: var(--sada-gray-50); border-radius: 8px; padding: 8px 12px;
  font-size: 0.85rem; color: var(--sada-gray-600);
}
.sada-group-code code { font-size: 1rem; font-weight: 700; color: var(--sada-primary); letter-spacing: 2px; }
.sada-copy-btn {
  background: none; border: none; cursor: pointer; color: var(--sada-primary);
  padding: 2px; transition: transform 0.2s;
}
.sada-copy-btn:hover { transform: scale(1.2); }
.sada-group-card__stats {
  display: flex; gap: 12px; padding: 10px 16px;
  border-top: 1px solid var(--sada-gray-100); font-size: 0.8rem; color: var(--sada-gray-600);
}
.sada-group-card__stats span { display: flex; align-items: center; gap: 4px; }
.sada-group-card .sada-btn { margin: 12px 16px 16px; }

/* ── Tags ── */
.sada-subject-tag, .sada-grade-tag, .sada-tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 20px; font-size: 0.78rem; font-weight: 600;
}
.sada-subject-tag { background: #dbeafe; color: #1d4ed8; }
.sada-grade-tag { background: #f3e8ff; color: #7c3aed; }
.sada-tag { background: var(--sada-gray-100); color: var(--sada-gray-600); }
.sada-tag--green { background: #dcfce7; color: #16a34a; }
.sada-tag--red { background: #fee2e2; color: #dc2626; }

/* ── Role Badges ── */
.sada-role-badge {
  display: inline-flex; padding: 3px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 700;
}
.sada-role-badge--teacher { background: #dbeafe; color: #1d4ed8; }
.sada-role-badge--student { background: #dcfce7; color: #16a34a; }
.sada-status-badge { display: inline-flex; padding: 3px 10px; border-radius: 20px; font-size: 0.78rem; font-weight: 600; }
.sada-status-badge.active { background: #dcfce7; color: #16a34a; }
.sada-status-badge.inactive { background: var(--sada-gray-100); color: var(--sada-gray-400); }
.sada-status-badge.done { background: #dcfce7; color: #16a34a; }
.sada-status-badge.pending { background: #fef3c7; color: #d97706; }
.sada-status-badge.missed { background: #fee2e2; color: #dc2626; }

/* ── Empty State ── */
.sada-empty-state {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 60px 20px; color: var(--sada-gray-400); gap: 12px;
  background: var(--sada-white); border-radius: var(--sada-radius);
  border: 2px dashed var(--sada-gray-200);
}
.sada-empty-state i { font-size: 3rem; }
.sada-empty-state p { font-size: 1rem; }

/* ── Modal ── */
.sada-modal { display: none; position: fixed; inset: 0; z-index: 1000; }
.sada-modal.open { display: flex; align-items: center; justify-content: center; }
.sada-modal__overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.5); backdrop-filter: blur(4px); }
.sada-modal__box {
  position: relative; z-index: 1; background: var(--sada-white);
  border-radius: var(--sada-radius-lg); width: 90%; max-width: 540px;
  max-height: 90vh; overflow-y: auto; box-shadow: var(--sada-shadow-lg);
  animation: sada-modal-in 0.25s ease;
}
.sada-modal__box--lg { max-width: 700px; }
.sada-modal__box--result { max-width: 420px; text-align: center; }
@keyframes sada-modal-in { from { opacity: 0; transform: scale(0.95) translateY(-10px); } }
.sada-modal__header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px 0; margin-bottom: 16px;
}
.sada-modal__header h3 { font-size: 1.1rem; }
.sada-modal__close {
  background: none; border: none; cursor: pointer; color: var(--sada-gray-400);
  font-size: 1.1rem; padding: 4px; border-radius: 4px; transition: color 0.2s;
}
.sada-modal__close:hover { color: var(--sada-danger); }

/* ── Forms ── */
.sada-form { padding: 0 24px 24px; }
.sada-form-group { margin-bottom: 16px; }
.sada-form-group label { display: block; font-size: 0.875rem; font-weight: 600; margin-bottom: 6px; color: var(--sada-gray-800); }
.sada-form-group input,
.sada-form-group select,
.sada-form-group textarea {
  width: 100%; padding: 10px 14px; border: 1.5px solid var(--sada-gray-200);
  border-radius: var(--sada-radius-sm); font-size: 0.9rem; font-family: var(--sada-font);
  direction: rtl; transition: border-color 0.2s;
  background: var(--sada-white); color: var(--sada-gray-800);
}
.sada-form-group input:focus,
.sada-form-group select:focus,
.sada-form-group textarea:focus { outline: none; border-color: var(--sada-primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.sada-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.sada-form-actions { display: flex; gap: 10px; margin-top: 20px; }
.sada-checkbox-label { display: flex !important; align-items: center; gap: 8px; cursor: pointer; }
.sada-checkbox-label input { width: auto !important; }
.sada-input-wrap { position: relative; }
.sada-toggle-pass {
  position: absolute; top: 50%; left: 12px; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; color: var(--sada-gray-400);
}
.sada-hint { font-size: 0.8rem; color: var(--sada-gray-400); margin-top: 4px; display: block; }

/* ── Card ── */
.sada-card {
  background: var(--sada-white); border-radius: var(--sada-radius);
  border: 1px solid var(--sada-gray-200); padding: 20px;
  box-shadow: var(--sada-shadow); margin-bottom: 20px;
}
.sada-card h3 { font-size: 1rem; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--sada-gray-100); }

/* ── Tabs ── */
.sada-tabs {
  display: flex; gap: 4px; background: var(--sada-white);
  border-radius: var(--sada-radius); padding: 6px; margin-bottom: 20px;
  border: 1px solid var(--sada-gray-200); box-shadow: var(--sada-shadow);
}
.sada-tab {
  flex: 1; padding: 10px; border-radius: 8px; border: none;
  background: none; cursor: pointer; font-size: 0.875rem;
  font-weight: 600; color: var(--sada-gray-600); transition: all 0.2s;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.sada-tab.active { background: var(--sada-primary); color: white; }
.sada-tab-content { display: none; }
.sada-tab-content.active { display: block; }

/* ── Table ── */
.sada-students-table-wrap { overflow-x: auto; }
.sada-table {
  width: 100%; border-collapse: collapse; background: var(--sada-white);
  border-radius: var(--sada-radius); overflow: hidden; box-shadow: var(--sada-shadow);
}
.sada-table th {
  background: var(--sada-gray-50); padding: 12px 16px; text-align: right;
  font-size: 0.8rem; font-weight: 700; color: var(--sada-gray-600);
  border-bottom: 1px solid var(--sada-gray-200);
}
.sada-table td { padding: 12px 16px; border-bottom: 1px solid var(--sada-gray-100); font-size: 0.875rem; }
.sada-table tr:last-child td { border-bottom: none; }
.sada-table tr:hover td { background: var(--sada-gray-50); }

/* ── Quiz Items ── */
.sada-quizzes-list, .sada-lessons-list, .sada-assignments-list { display: flex; flex-direction: column; gap: 12px; }
.sada-quiz-item {
  background: var(--sada-white); border-radius: var(--sada-radius);
  border: 1px solid var(--sada-gray-200); padding: 16px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  box-shadow: var(--sada-shadow);
}
.sada-quiz-item.done { opacity: 0.7; }
.sada-quiz-item__info { flex: 1; }
.sada-quiz-item__info h4 { margin-bottom: 6px; }
.sada-quiz-meta { display: flex; align-items: center; gap: 12px; font-size: 0.8rem; color: var(--sada-gray-600); flex-wrap: wrap; }
.sada-quiz-item__actions { display: flex; gap: 8px; }
.sada-quiz-score { display: flex; align-items: baseline; gap: 2px; }
.sada-score-num { font-size: 1.5rem; font-weight: 700; color: var(--sada-success); }
.sada-score-den { color: var(--sada-gray-400); }

/* ── Lesson Items ── */
.sada-lesson-item {
  background: var(--sada-white); border-radius: var(--sada-radius-sm);
  border: 1px solid var(--sada-gray-200); padding: 14px 16px;
  display: flex; align-items: center; justify-content: space-between;
}
.sada-lesson-item--student { display: flex; align-items: flex-start; gap: 16px; }
.sada-lesson-icon { color: var(--sada-primary); font-size: 1.5rem; margin-top: 2px; }
.sada-lesson-content { flex: 1; }
.sada-lesson-content h4 { margin-bottom: 6px; }
.sada-lesson-text { font-size: 0.875rem; color: var(--sada-gray-600); margin-bottom: 8px; }
.sada-lesson-item__info { flex: 1; display: flex; align-items: center; gap: 10px; }
.sada-lesson-item__info h4 { margin: 0; }
.sada-date { font-size: 0.78rem; color: var(--sada-gray-400); }

/* ── Assignment Items ── */
.sada-assignment-item {
  background: var(--sada-white); border-radius: var(--sada-radius-sm);
  border: 1px solid var(--sada-gray-200); padding: 16px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.sada-assignment-item.closed { background: var(--sada-gray-50); }
.sada-assignment-item__info { flex: 1; }
.sada-assignment-item__info h4 { margin-bottom: 6px; }
.sada-assignment-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: 0.8rem; color: var(--sada-gray-600); }
.sada-assignment-item__actions { display: flex; gap: 8px; }
.sada-grade-badge { background: #fef3c7; color: #d97706; padding: 2px 10px; border-radius: 20px; font-weight: 600; font-size: 0.8rem; }

/* ── Group Hero ── */
.sada-group-hero {
  background: linear-gradient(135deg, var(--sada-primary), var(--sada-secondary));
  border-radius: var(--sada-radius-lg); padding: 24px;
  color: white; margin-bottom: 24px;
}
.sada-group-hero__info h1 { font-size: 1.5rem; margin: 8px 0 4px; }
.sada-group-hero__code {
  display: flex; align-items: center; gap: 10px; margin-top: 12px;
  background: rgba(255,255,255,0.15); border-radius: 8px; padding: 8px 14px;
}
.sada-group-hero__code code { font-size: 1.25rem; letter-spacing: 3px; font-weight: 700; }
.sada-back-btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.2); border: 1px solid rgba(255,255,255,0.3);
  color: white; padding: 6px 14px; border-radius: 8px;
  cursor: pointer; font-size: 0.875rem; margin-bottom: 8px; transition: background 0.2s;
}
.sada-back-btn:hover { background: rgba(255,255,255,0.3); }

/* ── Section Actions ── */
.sada-section-actions { margin-bottom: 16px; }
.sada-add-student-row { display: flex; gap: 10px; align-items: center; }
.sada-add-student-row input { flex: 1; padding: 10px 14px; border: 1.5px solid var(--sada-gray-200); border-radius: var(--sada-radius-sm); }

/* ── Join Card ── */
.sada-join-card { margin-bottom: 24px; }
.sada-join-card h3 { margin-bottom: 12px; font-size: 1rem; }
.sada-join-row { display: flex; gap: 10px; }
.sada-join-row input { flex: 1; padding: 10px 14px; border: 1.5px solid var(--sada-gray-200); border-radius: var(--sada-radius-sm); font-family: var(--sada-font); }

/* ── Auth ── */
.sada-auth-wrapper {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 20px;
  background: linear-gradient(135deg, #eff6ff 0%, #f5f3ff 100%);
}
.sada-auth-card {
  background: var(--sada-white); border-radius: var(--sada-radius-lg);
  padding: 40px; width: 100%; max-width: 440px;
  box-shadow: var(--sada-shadow-lg);
}
.sada-auth-card--wide { max-width: 560px; }
.sada-auth-logo {
  text-align: center; margin-bottom: 24px;
  color: var(--sada-primary);
}
.sada-auth-logo i { font-size: 3rem; }
.sada-auth-logo h1 { font-size: 1.5rem; margin-top: 8px; }
.sada-auth-title { text-align: center; margin-bottom: 24px; font-size: 1.1rem; color: var(--sada-gray-800); }
.sada-auth-switch { text-align: center; margin-top: 20px; font-size: 0.875rem; color: var(--sada-gray-600); }
.sada-auth-switch a { color: var(--sada-primary); font-weight: 600; text-decoration: none; }

/* ── Role Selector ── */
.sada-role-selector { display: flex; gap: 12px; margin-bottom: 24px; }
.sada-role-option { flex: 1; cursor: pointer; }
.sada-role-option input { display: none; }
.sada-role-card {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: 16px; border-radius: var(--sada-radius); border: 2px solid var(--sada-gray-200);
  transition: all 0.2s; font-weight: 600; color: var(--sada-gray-600);
}
.sada-role-card i { font-size: 2rem; }
.sada-role-option input:checked + .sada-role-card {
  border-color: var(--sada-primary); background: #eff6ff; color: var(--sada-primary);
}

/* ── Alert ── */
.sada-alert {
  padding: 12px 16px; border-radius: var(--sada-radius-sm);
  font-size: 0.875rem; margin-bottom: 16px;
}
.sada-alert--success { background: #dcfce7; color: #16a34a; border: 1px solid #bbf7d0; }
.sada-alert--error { background: #fee2e2; color: #dc2626; border: 1px solid #fecaca; }

/* ── Success Box ── */
.sada-success-box { text-align: center; padding: 24px 0; }
.sada-success-icon { font-size: 4rem; color: var(--sada-success); margin-bottom: 12px; }
.sada-student-id-reveal { margin: 16px 0; }
.sada-student-id-big {
  font-size: 3rem; font-weight: 700; letter-spacing: 8px;
  color: var(--sada-primary); background: var(--sada-gray-50);
  border-radius: var(--sada-radius); padding: 16px; margin: 8px 0;
  border: 2px dashed var(--sada-primary);
}

/* ── Quiz Builder ── */
.sada-quiz-form .sada-card { margin-bottom: 20px; }
.sada-question-add-btns { display: flex; gap: 8px; }
.sada-questions-container { display: flex; flex-direction: column; gap: 16px; }
.sada-question-block {
  border: 1.5px solid var(--sada-gray-200); border-radius: var(--sada-radius);
  padding: 16px; background: var(--sada-gray-50);
}
.sada-question-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.sada-q-num { font-weight: 700; color: var(--sada-primary); }
.sada-question-controls { display: flex; align-items: center; gap: 8px; }
.sada-marks-input { width: 80px !important; text-align: center; }
.sada-options-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 12px; }
.sada-option-row {
  display: flex; align-items: center; gap: 8px;
  background: var(--sada-white); border: 1.5px solid var(--sada-gray-200);
  border-radius: 8px; padding: 8px 12px; cursor: pointer; transition: border-color 0.2s;
}
.sada-option-row:has(input:checked) { border-color: var(--sada-success); background: #dcfce7; }
.sada-option-row input[type=radio] { accent-color: var(--sada-success); }
.sada-option-row input[type=text] { border: none; outline: none; background: none; flex: 1; font-family: var(--sada-font); }
.sada-tf-options { display: flex; gap: 16px; margin-top: 12px; }
.sada-tf-option {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 16px; border: 2px solid var(--sada-gray-200); border-radius: 8px;
  cursor: pointer; font-weight: 700; font-size: 1.1rem; transition: all 0.2s;
}
.sada-tf-option:has(input:checked) { border-color: var(--sada-success); background: #dcfce7; color: var(--sada-success); }
.sada-quiz-total { text-align: left; margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--sada-gray-200); font-weight: 600; color: var(--sada-gray-600); }

/* ── Quiz Take ── */
.sada-quiz-take { max-width: 700px; margin: 0 auto; }
.sada-quiz-take__header {
  background: linear-gradient(135deg, var(--sada-primary), var(--sada-secondary));
  border-radius: var(--sada-radius-lg); padding: 24px; color: white; margin-bottom: 24px;
}
.sada-quiz-take__header h2 { font-size: 1.4rem; margin-bottom: 8px; }
.sada-quiz-desc { opacity: 0.85; margin-bottom: 12px; }
.sada-quiz-take__meta { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.sada-quiz-take__meta span { display: flex; align-items: center; gap: 6px; font-size: 0.9rem; }
.sada-timer {
  background: rgba(255,255,255,0.2); border-radius: 8px; padding: 6px 16px;
  display: flex; align-items: center; gap: 8px; font-size: 1.2rem; font-weight: 700;
  border: 1px solid rgba(255,255,255,0.3);
}
.sada-timer.warning { background: rgba(220,38,38,0.3); animation: sada-pulse 1s infinite; }
@keyframes sada-pulse { 50% { opacity: 0.7; } }

.sada-question-card {
  background: var(--sada-white); border-radius: var(--sada-radius);
  border: 1.5px solid var(--sada-gray-200); padding: 20px; margin-bottom: 16px;
  box-shadow: var(--sada-shadow);
}
.sada-question-card:has(input:checked) { border-color: var(--sada-primary); }
.sada-question-card__header {
  display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px;
}
.sada-q-marks { background: #fef3c7; color: #d97706; padding: 2px 10px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; }
.sada-question-text { font-size: 1rem; line-height: 1.6; margin-bottom: 16px; font-weight: 600; }
.sada-options { display: flex; flex-direction: column; gap: 10px; }
.sada-option-label {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; border: 2px solid var(--sada-gray-200);
  border-radius: var(--sada-radius-sm); cursor: pointer; transition: all 0.2s;
}
.sada-option-label:has(input:checked) { border-color: var(--sada-primary); background: #eff6ff; }
.sada-option-label:hover { border-color: var(--sada-primary); }
.sada-option-label input { display: none; }
.sada-option-letter { width: 28px; height: 28px; border-radius: 50%; background: var(--sada-gray-100); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.85rem; flex-shrink: 0; }
.sada-option-label:has(input:checked) .sada-option-letter { background: var(--sada-primary); color: white; }
.sada-option-tf { justify-content: center; font-size: 1.1rem; font-weight: 700; }

.sada-quiz-submit-bar {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--sada-white); border-radius: var(--sada-radius);
  padding: 16px 20px; border: 1px solid var(--sada-gray-200); box-shadow: var(--sada-shadow);
  position: sticky; bottom: 16px;
}
.sada-quiz-progress { font-weight: 600; color: var(--sada-gray-600); }

/* ── Quiz Result ── */
.sada-modal__box--result { padding-bottom: 32px; }
.sada-result-icon { font-size: 5rem; margin: 24px 0 8px; }
.sada-result-score { display: flex; align-items: baseline; justify-content: center; gap: 4px; margin: 12px 0; }
.sada-score-big { font-size: 4rem; font-weight: 800; color: var(--sada-primary); }
.sada-score-total { font-size: 1.5rem; color: var(--sada-gray-400); }
.sada-result-percent { font-size: 1.5rem; font-weight: 700; margin-bottom: 16px; }
.sada-result-details { margin: 16px 24px; text-align: right; }

/* ── Notifications ── */
.sada-notif-panel {
  position: fixed; top: calc(var(--sada-header-h) + 8px); left: 16px;
  background: var(--sada-white); border-radius: var(--sada-radius);
  box-shadow: var(--sada-shadow-lg); border: 1px solid var(--sada-gray-200);
  width: 340px; z-index: 200; max-height: 400px; overflow: hidden;
  display: flex; flex-direction: column;
}
.sada-notif-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--sada-gray-100); font-weight: 700;
}
.sada-notif-header button { background: none; border: none; cursor: pointer; color: var(--sada-primary); font-size: 0.8rem; }
.sada-notif-list { overflow-y: auto; flex: 1; }
.sada-notif-item {
  padding: 12px 16px; border-bottom: 1px solid var(--sada-gray-100);
  font-size: 0.85rem; transition: background 0.2s;
}
.sada-notif-item.unread { background: #eff6ff; }
.sada-notif-item:hover { background: var(--sada-gray-50); }
.sada-notif-loading { padding: 20px; text-align: center; color: var(--sada-gray-400); }

/* ── Whispers ── */
.sada-whispers-layout { display: flex; gap: 24px; max-width: 1100px; margin: 0 auto; padding: 24px; }
.sada-whispers-main { flex: 1; min-width: 0; }
.sada-whispers-sidebar { width: 280px; flex-shrink: 0; }
.sada-sidebar-card {
  background: var(--sada-white); border-radius: var(--sada-radius);
  border: 1px solid var(--sada-gray-200); padding: 16px; margin-bottom: 16px;
  box-shadow: var(--sada-shadow);
}
.sada-sidebar-card h4 { font-size: 0.9rem; margin-bottom: 10px; color: var(--sada-gray-600); }
.sada-whisper-profile { display: flex; align-items: center; gap: 12px; }
.sada-type-legend { display: flex; flex-wrap: wrap; gap: 6px; }

.sada-compose-card {
  background: var(--sada-white); border-radius: var(--sada-radius);
  border: 1px solid var(--sada-gray-200); padding: 16px;
  display: flex; gap: 12px; box-shadow: var(--sada-shadow); margin-bottom: 16px;
}
.sada-compose-body { flex: 1; }
.sada-compose-body textarea {
  width: 100%; border: 1.5px solid var(--sada-gray-200); border-radius: 8px;
  padding: 10px 12px; font-family: var(--sada-font); font-size: 0.9rem;
  resize: none; direction: rtl; outline: none; transition: border-color 0.2s;
}
.sada-compose-body textarea:focus { border-color: var(--sada-primary); }
.sada-compose-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 10px; }
.sada-compose-options { display: flex; gap: 8px; }
.sada-compose-options select {
  padding: 6px 10px; border: 1px solid var(--sada-gray-200); border-radius: 6px;
  font-size: 0.8rem; cursor: pointer;
}
.sada-compose-right { display: flex; align-items: center; gap: 10px; }
.sada-char-count { font-size: 0.8rem; color: var(--sada-gray-400); }

.sada-whispers-filters {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--sada-white); border-radius: var(--sada-radius);
  padding: 10px 16px; margin-bottom: 16px; border: 1px solid var(--sada-gray-200);
}
.sada-filter-tabs { display: flex; gap: 4px; }
.sada-filter-tab {
  padding: 6px 16px; border: none; border-radius: 20px; cursor: pointer;
  font-size: 0.85rem; font-weight: 600; background: var(--sada-gray-100); color: var(--sada-gray-600);
}
.sada-filter-tab.active { background: var(--sada-primary); color: white; }
.sada-filter-select { padding: 6px 10px; border: 1px solid var(--sada-gray-200); border-radius: 6px; font-size: 0.8rem; }

.sada-whispers-feed { display: flex; flex-direction: column; gap: 12px; }
.sada-whisper-card {
  background: var(--sada-white); border-radius: var(--sada-radius);
  border: 1px solid var(--sada-gray-200); padding: 16px;
  box-shadow: var(--sada-shadow); animation: sada-fade-in 0.3s ease;
}
@keyframes sada-fade-in { from { opacity: 0; transform: translateY(8px); } }
.sada-whisper-card__header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 10px; }
.sada-whisper-user { display: flex; align-items: center; gap: 10px; }
.sada-whisper-meta { display: flex; flex-direction: column; gap: 2px; }
.sada-whisper-meta strong { font-size: 0.9rem; }
.sada-whisper-badges { display: flex; gap: 6px; align-items: center; }
.sada-whisper-card__content { font-size: 0.95rem; line-height: 1.7; margin-bottom: 12px; white-space: pre-wrap; }
.sada-whisper-card__actions { display: flex; align-items: center; gap: 8px; padding-top: 10px; border-top: 1px solid var(--sada-gray-100); }
.sada-whisper-action {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 20px; border: 1px solid var(--sada-gray-200);
  background: none; cursor: pointer; font-size: 0.8rem; color: var(--sada-gray-600);
  transition: all 0.2s;
}
.sada-whisper-action:hover { background: var(--sada-gray-50); }
.sada-whisper-action.liked i { color: #dc2626; }
.sada-whisper-action.following { background: var(--sada-primary); color: white; border-color: var(--sada-primary); }

.sada-type-tag, .sada-type-badge {
  display: inline-flex; padding: 2px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 600;
}
.type-general { background: #f1f5f9; color: #64748b; }
.type-announcement { background: #dbeafe; color: #1d4ed8; }
.type-advice { background: #fef3c7; color: #d97706; }
.type-reminder { background: #f3e8ff; color: #7c3aed; }

.sada-loading-state { text-align: center; padding: 40px; color: var(--sada-gray-400); font-size: 1rem; }
.sada-load-more { display: block; width: 100%; margin-top: 16px; }
.sada-limit-note { font-size: 0.85rem; color: var(--sada-gray-600); }
.sada-limit-note a { color: var(--sada-primary); }

/* ── Message ── */
.sada-message { padding: 16px 20px; background: var(--sada-white); border-radius: var(--sada-radius); border: 1px solid var(--sada-gray-200); }
.sada-message a { color: var(--sada-primary); font-weight: 600; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .sada-sidebar { display: none; }
  .sada-layout { flex-direction: column; }
  .sada-main { padding: 16px; }
  .sada-groups-grid { grid-template-columns: 1fr; }
  .sada-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .sada-form-row { grid-template-columns: 1fr; }
  .sada-tabs { flex-wrap: wrap; }
  .sada-tab { flex: none; }
  .sada-whispers-layout { flex-direction: column; }
  .sada-whispers-sidebar { width: 100%; }
  .sada-options-grid { grid-template-columns: 1fr; }
  .sada-quiz-submit-bar { flex-direction: column; gap: 12px; }
  .sada-assignment-item { flex-direction: column; align-items: flex-start; }
  .sada-quiz-item { flex-direction: column; align-items: flex-start; }
}