/* Core Color System & Variables */
:root {
    --bg-primary: #f4f6f9;
    --bg-secondary: #ffffff;
    --bg-sidebar: #1e293b;
    --bg-card: #ffffff;
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-on-sidebar: #f8fafc;
    
    --color-primary: #475569; /* Slate */
    --color-primary-light: #f1f5f9;
    --color-primary-hover: #334155;
    
    --color-accent: #0ea5e9; /* Light blue accent */
    
    /* Soft Slate-Blue */
    --color-slate-blue: #4a607a;
    --color-slate-blue-light: #eef3f8;
    --color-slate-blue-hover: #394d64;
    
    /* Mint Green */
    --color-mint: #10b981;
    --color-mint-light: #e6fcf5;
    --color-mint-hover: #0d9488;
    --color-mint-text: #047857;
    
    /* Status Colors */
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-danger-light: #fee2e2;
    --color-danger-text: #b91c1c;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-warning-text: #b45309;
    
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.03);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

/* Dark Theme Variables Override */
.dark-theme {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-sidebar: #0b0f19;
    --bg-card: #1e293b;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --color-primary: #94a3b8;
    --color-primary-light: #334155;
    --color-primary-hover: #cbd5e1;
    
    --color-slate-blue: #627d98;
    --color-slate-blue-light: #2d3748;
    --color-slate-blue-hover: #7b96b2;
    
    --color-mint-light: #064e3b;
    --color-mint-text: #34d399;
    
    --border-color: #334155;
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.3), 0 2px 4px -1px rgba(0,0,0,0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.4), 0 4px 6px -2px rgba(0,0,0,0.3);
}

/* Reset and Core Layout */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Sarabun', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    min-height: 100vh;
}

/* App Wrapper Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: 280px;
    background-color: var(--bg-sidebar);
    color: var(--text-on-sidebar);
    display: flex;
    flex-direction: column;
    padding: 24px;
    flex-shrink: 0;
    transition: width var(--transition-normal);
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.logo-icon {
    background-color: var(--color-mint);
    color: white;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3);
}

.logo-text h2 {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.2;
}

.logo-text span {
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

/* Role Selector Styling */
.role-selector-box {
    margin-bottom: 20px;
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    padding: 12px;
    border: 1px dashed rgba(255, 255, 255, 0.1);
}

.role-selector-box label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 6px;
    display: block;
    text-transform: uppercase;
}

.role-toggle-group {
    display: flex;
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
    padding: 2px;
}

.role-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 8px 6px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all var(--transition-fast);
}

.role-btn.active {
    background-color: var(--color-slate-blue);
    color: white;
}

/* Supervisor Theme adjustments in Sidebar */
.supervisor-active .role-btn.active {
    background-color: #4f46e5; /* Indigo accent for supervisor */
}
.supervisor-active .logo-icon {
    background-color: #4f46e5;
    box-shadow: 0 4px 10px rgba(79, 70, 229, 0.3);
}

.profile-manager-box {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.profile-manager-box label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
    display: block;
}

.select-wrapper {
    position: relative;
    margin-bottom: 12px;
}

.select-wrapper select {
    appearance: none;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: white;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
}

.select-wrapper select option {
    background-color: var(--bg-sidebar);
    color: white;
}

.select-wrapper select:focus {
    outline: none;
    border-color: var(--color-mint);
}

.select-wrapper::after {
    content: '\f107';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

.sidebar-nav {
    flex-grow: 1;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: 8px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
    text-decoration: none;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.sidebar-nav li.active a,
.sidebar-nav a:hover {
    background-color: rgba(255, 255, 255, 0.08);
    color: white;
}

.sidebar-nav li.active a {
    border-left: 4px solid var(--color-mint);
    padding-left: 12px;
    font-weight: 600;
}

.supervisor-active .sidebar-nav li.active a {
    border-left-color: #4f46e5;
}

.sidebar-footer {
    display: flex;
    gap: 8px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-footer .btn-icon-only {
    flex: 1;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    padding: 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sidebar-footer .btn-icon-only:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

/* Main Content Area */
.main-content {
    flex-grow: 1;
    padding: 32px;
    overflow-y: auto;
}

/* Top Nav Header */
.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.header-title h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.header-title p {
    font-size: 14px;
    color: var(--text-secondary);
}

.header-widgets {
    display: flex;
    align-items: center;
    gap: 16px;
}

.theme-switch {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.theme-switch:hover {
    background-color: var(--color-primary-light);
    color: var(--text-primary);
    transform: scale(1.05);
}

.date-badge {
    background-color: var(--color-slate-blue-light);
    color: var(--color-slate-blue);
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.dark-theme .date-badge {
    background-color: #27374d;
    color: #9db2bf;
}

.supervisor-active .date-badge {
    background-color: rgba(79, 70, 229, 0.1);
    color: #4f46e5;
}

/* Card Styling */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 24px;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-slate-blue);
}

.supervisor-active .card-header h3 {
    color: #4f46e5;
}

.dark-theme .card-header h3 {
    color: #9db2bf;
}

/* Information Banner */
.info-banner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--color-slate-blue-light);
    border-left: 5px solid var(--color-slate-blue);
    margin-bottom: 32px;
    padding: 16px 24px;
}

.dark-theme .info-banner {
    background-color: #232d3f;
    border-left-color: var(--color-slate-blue);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    flex-grow: 1;
}

.info-label {
    display: block;
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 2px;
}

.info-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Dashboard Grid Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 32px;
}

.col-span-2 {
    grid-column: span 2;
}

/* Clock Card Styling */
.card-clock {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-primary) 100%);
    border: 2px solid var(--color-slate-blue-light);
}

.clock-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.live-clock {
    text-align: center;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 24px;
    border-radius: var(--radius-lg);
    width: 100%;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

#liveTime {
    font-family: 'Inter', sans-serif;
    font-size: 48px;
    font-weight: 700;
    color: var(--color-slate-blue);
    letter-spacing: 2px;
    margin-bottom: 4px;
}

.dark-theme #liveTime {
    color: #9db2bf;
}

#liveDate {
    font-size: 14px;
    color: var(--text-secondary);
}

.clock-actions {
    display: flex;
    gap: 16px;
    width: 100%;
    margin-top: 24px;
}

.clock-actions .btn {
    flex: 1;
    padding: 16px;
    font-size: 16px;
    border-radius: var(--radius-md);
}

.badge-status {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.badge-status.checked-in {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-mint-text);
}

.badge-status.checked-out {
    background-color: var(--color-danger-light);
    color: var(--color-danger);
}

.badge-status.pending {
    background-color: var(--color-primary-light);
    color: var(--text-secondary);
}

.badge-status.approved {
    background-color: var(--color-mint-light);
    color: var(--color-mint-text);
}

.badge-status.rejected {
    background-color: var(--color-danger-light);
    color: var(--color-danger-text);
}

/* Form Controls */
.form-group {
    margin-bottom: 16px;
    width: 100%;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-slate-blue);
    box-shadow: 0 0 0 3px rgba(74, 96, 122, 0.15);
}

.supervisor-active .form-control:focus {
    border-color: #4f46e5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.form-row {
    display: flex;
    gap: 16px;
}

.form-row .col {
    flex: 1;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.btn-primary {
    background-color: var(--color-slate-blue);
    color: white;
}

.btn-primary:hover {
    background-color: var(--color-slate-blue-hover);
    box-shadow: 0 4px 12px rgba(74, 96, 122, 0.25);
}

.supervisor-active .btn-primary {
    background-color: #4f46e5;
}
.supervisor-active .btn-primary:hover {
    background-color: #4338ca;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
}

.btn-secondary {
    background-color: var(--color-primary-light);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

.btn-success {
    background-color: var(--color-mint);
    color: white;
}

.btn-success:hover {
    background-color: var(--color-mint-hover);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

.btn-success:disabled, .btn-danger:disabled, .btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none !important;
}

.btn-danger {
    background-color: var(--color-danger);
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
}

.btn-lg {
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-size: 16px;
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-icon {
    padding: 8px;
    border-radius: 50%;
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-icon:hover {
    background-color: var(--color-primary-light);
    color: var(--text-primary);
}

/* Stats Cards Section */
.stats-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.card-stat {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.bg-soft-primary {
    background-color: rgba(74, 96, 122, 0.1);
    color: var(--color-slate-blue);
}

.supervisor-active .bg-soft-primary {
    background-color: rgba(79, 70, 229, 0.1);
    color: #4f46e5;
}

.bg-soft-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-mint);
}

.bg-soft-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
}

.stat-details {
    display: flex;
    flex-direction: column;
}

.stat-val {
    font-size: 24px;
    font-weight: 700;
    line-height: 1.1;
    font-family: 'Inter', sans-serif;
    color: var(--text-primary);
}

.stat-title {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Sections Control */
.content-section {
    display: none;
}

.content-section.active {
    display: block;
    animation: fadeIn var(--transition-normal);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Calendar Styling */
.calendar-header-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.calendar-nav {
    display: flex;
    align-items: center;
    gap: 16px;
}

.calendar-nav h4 {
    font-size: 18px;
    font-weight: 600;
    min-width: 150px;
    text-align: center;
}

.calendar-legend {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    font-size: 13px;
    color: var(--text-secondary);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.color-box {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 4px;
}

.bg-mint { background-color: var(--color-mint); }
.bg-warning { background-color: var(--color-warning); }
.bg-slate-light { background-color: var(--color-primary-light); }
.bg-danger { background-color: var(--color-danger); }
.dark-theme .bg-slate-light { background-color: #334155; }

.calendar-grid-wrapper {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    background-color: var(--color-slate-blue-light);
    border-bottom: 1px solid var(--border-color);
    text-align: center;
    font-weight: 600;
    padding: 12px 0;
}

.dark-theme .calendar-weekdays {
    background-color: #27374d;
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
}

.calendar-cell {
    min-height: 100px;
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 8px;
    position: relative;
    background-color: var(--bg-card);
}

.calendar-cell:nth-child(7n) {
    border-right: none;
}

.calendar-cell.prev-next {
    background-color: var(--bg-primary);
    opacity: 0.4;
}

.day-num {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-secondary);
}

.day-info {
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.day-badge {
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.day-badge.in {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-mint-text);
}

.day-badge.out {
    background-color: rgba(14, 165, 233, 0.1);
    color: #0369a1;
}

.day-badge.partial {
    background-color: var(--color-warning-light);
    color: var(--color-warning-text);
}

/* History and Filters */
.filter-bar {
    display: flex;
    gap: 16px;
}

.filter-inputs {
    display: flex;
    gap: 16px;
    flex-grow: 1;
}

.filter-inputs .form-group {
    width: auto;
    min-width: 180px;
}

.input-search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-search-wrapper input {
    padding-right: 36px;
}

.input-search-wrapper i {
    position: absolute;
    right: 12px;
    color: var(--text-muted);
}

.action-buttons {
    display: flex;
    gap: 12px;
}

.badge {
    background-color: var(--color-slate-blue-light);
    color: var(--color-slate-blue);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.dark-theme .badge {
    background-color: #27374d;
    color: #9db2bf;
}

/* Feedback notes inside tables */
.feedback-comment {
    margin-top: 8px;
    background-color: var(--color-danger-light);
    border-left: 3px solid var(--color-danger);
    color: var(--color-danger-text);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

.feedback-approved {
    margin-top: 8px;
    background-color: var(--color-mint-light);
    border-left: 3px solid var(--color-mint);
    color: var(--color-mint-text);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* Table Design */
.table-responsive {
    overflow-x: auto;
}

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

.table th, .table td {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    background-color: var(--bg-primary);
}

.dark-theme .table th {
    background-color: #1e293b;
}

.table tbody tr:hover {
    background-color: var(--color-primary-light);
}

.dark-theme .table tbody tr:hover {
    background-color: #243249;
}

.table-hours {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    color: var(--color-mint-text);
}

.table-actions {
    display: flex;
    justify-content: center;
    gap: 8px;
}

/* Modals Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal {
    width: 100%;
    max-width: 500px;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from { transform: translateY(40px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.btn-close-modal {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text-secondary);
    cursor: pointer;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

/* Helpers */
.hidden { display: none !important; }
.text-center { text-align: center; }
.justify-center { justify-content: center; }
.align-center { align-items: center; }
.flex-wrap { flex-wrap: wrap; }
.gap-4 { gap: 16px; }
.flex-grow { flex-grow: 1; }
.mb-0 { margin-bottom: 0px !important; }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-danger { color: var(--color-danger); }
.py-6 { padding-top: 24px; padding-bottom: 24px; }
.px-6 { padding-left: 24px; padding-right: 24px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mt-4 { margin-top: 16px; }
.mt-2 { margin-top: 8px; }
.w-full { width: 100%; }
.text-sm { font-size: 12px; }
.font-semibold { font-weight: 600; }

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 40px;
}

.empty-state i {
    font-size: 64px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--text-secondary);
    max-width: 400px;
    margin-bottom: 24px;
}

/* Print Only Layout (Hidden by default) */
.print-only {
    display: none;
}

/* Print Stylesheet Overrides */
@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        background-color: white !important;
        color: black !important;
        font-size: 14px;
    }
    
    .app-container {
        display: block;
    }
    
    .main-content {
        padding: 0;
    }
    
    .print-only {
        display: block !important;
    }
    
    .print-header {
        text-align: center;
        margin-bottom: 24px;
        border-bottom: 2px double #000;
        padding-bottom: 8px;
    }
    
    .print-header h2 {
        font-size: 20px;
        font-weight: 700;
    }
    
    .print-header h3 {
        font-size: 16px;
        margin-top: 4px;
    }
    
    .print-student-info {
        margin-bottom: 20px;
        background: #f8fafc;
        border: 1px solid #cbd5e1;
        padding: 16px;
        border-radius: 8px;
    }
    
    .print-info-row {
        display: flex;
        justify-content: space-between;
        margin-bottom: 8px;
    }
    
    .print-info-row:last-child {
        margin-bottom: 0;
    }
    
    .print-table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 40px;
    }
    
    .print-table th, .print-table td {
        border: 1px solid #475569;
        padding: 8px 10px;
        font-size: 11px;
        text-align: left;
    }
    
    .print-table th {
        background-color: #f1f5f9 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
        font-weight: 600;
    }
    
    .print-signature-area {
        display: flex;
        justify-content: space-between;
        margin-top: 50px;
        page-break-inside: avoid;
    }
    
    .sig-box {
        width: 45%;
        text-align: center;
    }
    
    .sig-box p {
        margin-bottom: 12px;
    }
}

/* Mobile Responsiveness */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .col-span-2 {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        padding: 16px;
    }
    
    .sidebar-header {
        margin-bottom: 16px;
    }
    
    .main-content {
        padding: 16px;
    }
    
    .info-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
    
    .info-banner {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .stats-container {
        grid-template-columns: 1fr;
    }
}