/* Dashboard and component styles (moved from inline styles in component pages) */

/* Typography Consistency - Use professional font system */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: var(--font-size-base, 1rem);
    line-height: var(--line-height-normal, 1.5);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Sidebar Styles */
.sidebar {
    width: var(--sidebar-width);
    background: var(--secondary);
    color: white;
    height: 100vh;
    position: fixed;
    overflow-y: auto;
    transition: all 0.3s;
    z-index: 100;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.logo-container { padding: 20px; border-bottom: 1px solid #334155; }
.logo { 
    display: flex; 
    align-items: center; 
    gap: 12px; 
    font-size: var(--font-size-xl, 1.5rem); 
    font-weight: var(--font-weight-bold, 700); 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.logo span { color: var(--accent); }
.nav-links { padding: 20px 0; }
.nav-item { padding: 0 20px; margin-bottom: 5px; }
.nav-link { 
    display: flex; 
    align-items: center; 
    gap: 15px; 
    padding: 12px 15px; 
    color: var(--gray); 
    text-decoration: none; 
    border-radius: 8px; 
    transition: all 0.3s ease; 
    font-size: var(--font-size-base, 1rem);
    font-weight: var(--font-weight-medium, 500);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    position: relative;
}
.nav-link:hover { 
    background: rgba(255,255,255,0.08); 
    color: white; 
    transform: translateX(2px);
}
.nav-link.active { 
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(249, 115, 22, 0.2) 100%);
    color: white; 
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.3);
    border-left: 4px solid var(--accent);
    padding-left: 11px; /* Adjust for border */
}
.nav-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 60%;
    background: var(--accent);
    border-radius: 0 4px 4px 0;
    animation: slideIn 0.3s ease;
    box-shadow: 0 0 8px rgba(249, 115, 22, 0.6);
}
.nav-link.active i {
    color: var(--accent);
    transform: scale(1.1);
    filter: drop-shadow(0 0 4px rgba(249, 115, 22, 0.5));
}
.nav-link.active .nav-text {
    font-weight: 600;
    letter-spacing: 0.3px;
}
.nav-link i { 
    width: 24px; 
    text-align: center; 
    font-size: var(--font-size-lg, 1.25rem);
    transition: all 0.3s ease;
}
.nav-text { 
    font-size: var(--font-size-base, 1rem);
    transition: all 0.3s ease;
}
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-50%) translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(-50%) translateX(0);
    }
}

/* Main Content */
.main-content { 
    flex: 1; 
    margin-left: var(--sidebar-width); 
    transition: all 0.3s; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Header */
.header { 
    background: white; 
    box-shadow: 0 2px 10px rgba(0,0,0,0.1); 
    padding: 15px 30px; 
    display:flex; 
    justify-content:space-between; 
    align-items:center; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.user-info { display:flex; align-items:center; gap:15px; }
.user-avatar { 
    width:40px; 
    height:40px; 
    border-radius:50%; 
    background:var(--primary); 
    display:flex; 
    align-items:center; 
    justify-content:center; 
    color:white; 
    font-weight:var(--font-weight-bold, 700);
    font-size: var(--font-size-base, 1rem);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Dashboard Content */
.dashboard-content { 
    padding: 30px; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.page-title { 
    margin-bottom:25px; 
    font-size:var(--font-size-2xl, 1.875rem); 
    font-weight:var(--font-weight-bold, 700);
    color:var(--secondary); 
    display:flex; 
    justify-content:space-between; 
    align-items:center; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: var(--line-height-tight, 1.25);
}

.btn { 
    padding:8px 16px; 
    border-radius:8px; 
    font-weight:var(--font-weight-semibold, 600); 
    transition: all 0.3s; 
    border:none; 
    font-size:var(--font-size-base, 1rem); 
    display:inline-flex; 
    align-items:center; 
    gap:8px; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: var(--line-height-normal, 1.5);
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #0da271; }

/* Cards / tables / common blocks */
.table-container, .stat-card, .chart-container, .timetable-section, .assignment-card, .profile-section, .communication-section, .system-settings-section { 
    background: white; 
    border-radius:16px; 
    padding:20px; 
    box-shadow: 0 4px 6px rgba(0,0,0,0.05); 
    border:1px solid var(--border); 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Dashboard Stat Card Styles - Standardized */
.dashboard-stat-card h3 {
    margin: 0;
    font-size: var(--font-size-sm, 0.875rem);
    font-weight: var(--font-weight-medium, 500);
    opacity: 0.9;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.dashboard-stat-card .stat-icon-large {
    font-size: var(--font-size-2xl, 1.875rem);
    opacity: 0.8;
}

.dashboard-stat-card .stat-number-large {
    font-size: var(--font-size-3xl, 2.25rem);
    font-weight: var(--font-weight-bold, 700);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: var(--line-height-tight, 1.25);
}

.dashboard-stat-card .stat-description {
    font-size: var(--font-size-sm, 0.875rem);
    opacity: 0.9;
    margin-top: 5px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* User info text */
.user-info > div > div:first-child {
    font-size: var(--font-size-base, 1rem);
    font-weight: var(--font-weight-semibold, 600);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.user-info > div > div:last-child {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--gray);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Ensure sections are visible when displayed */
.communication-section, .system-settings-section {
    min-height: 600px;
    width: 100%;
    position: relative;
}

.settings-content {
    display: none;
}

.settings-content.active {
    display: block;
}

.stats-container { display:grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap:20px; margin-bottom:30px; }
.stat-card { 
    display:flex; 
    flex-direction:column; 
    padding:20px; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.stat-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:15px; }
.stat-icon { 
    width:50px; 
    height:50px; 
    border-radius:12px; 
    display:flex; 
    align-items:center; 
    justify-content:center; 
    font-size:var(--font-size-xl, 1.5rem); 
}
.timetable-icon { background: rgba(139,92,246,0.15); color:var(--primary); }
.assignment-icon { background: rgba(249,115,22,0.15); color:var(--accent); }
.grades-icon { background: rgba(16,185,129,0.15); color:var(--success); }
.attendance-icon { background: rgba(239,68,68,0.15); color:var(--error); }
.stat-value { 
    font-size:var(--font-size-2xl, 1.875rem); 
    font-weight:var(--font-weight-bold, 700); 
    margin-bottom:5px; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: var(--line-height-tight, 1.25);
}
.stat-label { 
    color: var(--dark-gray); 
    font-size:var(--font-size-sm, 0.875rem); 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.timetable { 
    width:100%; 
    border-collapse:collapse; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.timetable th { 
    text-align:center; 
    padding:12px 15px; 
    font-weight:var(--font-weight-semibold, 600); 
    color:var(--dark-gray); 
    border-bottom:2px solid var(--border); 
    background:#f8fafc; 
    font-size:var(--font-size-base, 1rem);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.timetable td { 
    padding:15px; 
    border:1px solid var(--border); 
    text-align:center; 
    vertical-align:middle; 
    font-size:var(--font-size-base, 1rem);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.period { 
    background:#f1f5f9; 
    border-radius:8px; 
    padding:10px; 
    font-weight:var(--font-weight-semibold, 600); 
    font-size:var(--font-size-base, 1rem);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.subject { 
    font-weight:var(--font-weight-bold, 700); 
    color:var(--primary); 
    font-size:var(--font-size-base, 1rem);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.teacher { 
    color:var(--dark-gray); 
    font-size:var(--font-size-sm, 0.875rem); 
    margin-top:5px; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.assignments-section { 
    display:grid; 
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); 
    gap:20px; 
    margin-bottom:30px; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.assignment-card { 
    padding:20px; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.assignment-header { display:flex; justify-content:space-between; margin-bottom:15px; }
.assignment-title { 
    font-size:var(--font-size-lg, 1.25rem); 
    font-weight:var(--font-weight-bold, 700); 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.assignment-due { 
    color:var(--accent); 
    font-weight:var(--font-weight-semibold, 600); 
    font-size:var(--font-size-base, 1rem);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.assignment-status { 
    display:inline-block; 
    padding:4px 10px; 
    border-radius:20px; 
    font-size:var(--font-size-sm, 0.875rem); 
    font-weight:var(--font-weight-semibold, 600); 
    margin-top:10px; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.status-pending { background:#ffedd5; color:#c2410c; }
.status-submitted { background:#dcfce7; color:#166534; }
.status-graded { background:#dbeafe; color:#1e40af; }

.performance-section { display:grid; grid-template-columns: 2fr 1fr; gap:25px; margin-bottom:30px; }
.chart-wrapper { height:300px; position:relative; }

.attendance-section { 
    padding:25px; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.attendance-stats { display:flex; gap:30px; margin-bottom:25px; flex-wrap:wrap; }
.attendance-stat { 
    text-align:center; 
    flex:1; 
    min-width:150px; 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.attendance-value { 
    font-size:var(--font-size-3xl, 2.25rem); 
    font-weight:var(--font-weight-bold, 700); 
    color:var(--primary); 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: var(--line-height-tight, 1.25);
}
.attendance-label { 
    color:var(--dark-gray); 
    font-size:var(--font-size-base, 1rem); 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.communication-section .announcement { 
    padding:15px 0; 
    border-bottom:1px solid var(--border); 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.announcement-header { display:flex; justify-content:space-between; margin-bottom:8px; }
.announcement-title { 
    font-weight:var(--font-weight-bold, 700); 
    color:var(--secondary); 
    font-size:var(--font-size-base, 1rem);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.announcement-date { 
    color:var(--gray); 
    font-size:var(--font-size-sm, 0.875rem); 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.announcement-content { color:var(--dark-gray); line-height:1.6; }

.profile-header { display:flex; align-items:center; gap:20px; margin-bottom:25px; }
.profile-avatar { width:80px; height:80px; border-radius:50%; background:var(--primary); display:flex; align-items:center; justify-content:center; color:white; font-size:2rem; font-weight:bold; }
.profile-info h2 { font-size:1.8rem; margin-bottom:5px; }
.profile-details { display:grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap:20px; }
.detail-card { background:#f8fafc; border-radius:12px; padding:20px; }
.detail-title { font-weight:700; margin-bottom:10px; color:var(--primary); }
.detail-value { color:var(--secondary); }

/* small utilities used across pages */
.action-buttons { display:flex; gap:10px; }
.action-btn { width:32px; height:32px; border-radius:6px; display:flex; align-items:center; justify-content:center; color:white; font-size:0.9rem; cursor:pointer; }
.edit-btn { background:#3b82f6; }
.delete-btn { background:var(--error); }
.view-btn { background:var(--success); }

/* Modal Styles */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-content {
  background: white;
  border-radius: 16px;
  box-shadow: 0 20px 25px rgba(0, 0, 0, 0.15);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(-50px); }
  to { opacity: 1; transform: translateY(0); }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 25px 30px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border-radius: 16px 16px 0 0;
}

.modal-title {
  font-size: 1.4rem;
  font-weight: 700;
}

.close-modal {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  font-size: 28px;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}

.close-modal:hover { background: rgba(255, 255, 255, 0.3); }

.modal-body {
  padding: 30px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-weight: 600;
  color: var(--secondary);
  font-size: 0.95rem;
}

.form-group input,
.form-group select {
  padding: 12px 15px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  transition: all 0.3s;
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 20px 30px;
  border-top: 1px solid var(--border);
  background: #f8fafc;
  border-radius: 0 0 16px 16px;
}

.modal-footer .btn {
  padding: 10px 20px;
  font-size: 0.95rem;
}

.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 20px;
}

.tab {
  padding: 12px 20px;
  cursor: pointer;
  color: var(--dark-gray);
  font-weight: 600;
  border-bottom: 3px solid transparent;
  transition: all 0.3s;
}

.tab:hover { color: var(--primary); }

.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
}

.data-table thead { background: #f8fafc; }

.data-table th {
  padding: 12px 15px;
  text-align: left;
  font-weight: 600;
  color: var(--secondary);
  border-bottom: 2px solid var(--border);
}

.data-table td {
  padding: 15px;
  border-bottom: 1px solid var(--border);
}

.data-table tbody tr:hover { background: #f8fafc; }

.status-active {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  background: #dcfce7;
  color: #166534;
  font-size: 0.85rem;
  font-weight: 600;
}

.status-inactive {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  background: #fee2e2;
  color: #991b1b;
  font-size: 0.85rem;
  font-weight: 600;
}

.class-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.class-card {
  background: white;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--border);
  transition: all 0.3s;
}

.class-card:hover {
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
  transform: translateY(-4px);
}

.class-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.class-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--secondary);
}

.class-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
  margin: 20px 0;
  padding: 15px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stat-item { text-align: center; }

.stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--dark-gray);
  margin-top: 5px;
}

.class-actions {
  display: flex;
  gap: 10px;
  margin-top: 15px;
  flex-wrap: wrap;
}

.class-actions .btn {
  flex: 1;
  justify-content: center;
  font-size: 0.9rem;
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.table-header h3 {
  margin: 0;
  font-size: 1.3rem;
  color: var(--secondary);
}

.user-filters {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.filter-group label {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--dark-gray);
}

.filter-group input,
.filter-group select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
}