@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #4f46e5;
    --primary-light: #818cf8;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --purple: #8b5cf6;
    
    --sidebar-bg: #0b1121;
    --sidebar-text: #94a3b8;
    --sidebar-text-hover: #ffffff;
    --sidebar-width: 280px;
    
    --bg-color: #f1f5f9;
    --card-bg: #ffffff;
    
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    
    --radius-md: 12px;
    --radius-lg: 20px;
    
    --transition: all 0.3s ease;
}

body.dark-theme {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: var(--transition);
}

.sidebar-header {
    padding: 2rem 2rem 1rem 2rem;
    display: flex;
    align-items: center;
    gap: 15px;
}

.sidebar-logo-icon {
    width: 36px;
    height: 36px;
    background: transparent;
    border: 2px solid white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.sidebar-header-text h2 {
    color: white;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.sidebar-header-text p {
    color: var(--sidebar-text);
    font-size: 0.75rem;
    margin-top: 2px;
}

.sidebar-scroll {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 1.5rem;
}

/* Scrollbar hidden for sidebar */
.sidebar-scroll::-webkit-scrollbar { width: 0px; }

.nav-section {
    margin-bottom: 2rem;
}

.nav-section-title {
    color: #475569;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    padding-left: 0.5rem;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: 0.5rem;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    padding: 0.8rem 1rem;
    color: var(--sidebar-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    gap: 15px;
}

.sidebar-menu li a:hover {
    color: var(--sidebar-text-hover);
    background-color: rgba(255,255,255,0.05);
}

.sidebar-menu li.active a {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.sidebar-menu li a i {
    font-size: 1.2rem;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    gap: 15px;
}

.sidebar-footer img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.sidebar-footer-info h4 {
    color: white;
    font-size: 0.95rem;
}

.sidebar-footer-info p {
    color: var(--sidebar-text);
    font-size: 0.8rem;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem 3rem;
    transition: var(--transition);
    width: calc(100% - var(--sidebar-width));
}

/* Header */
.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.header-left h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-left p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 5px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-widget {
    background: white;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-muted);
    box-shadow: var(--shadow-sm);
    font-weight: 500;
}

.header-widget i {
    color: var(--primary);
    font-size: 1.1rem;
}

.notification-btn {
    background: white;
    width: 45px;
    height: 45px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    position: relative;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 1.2rem;
    border: none;
}

.notification-btn .badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--danger);
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    padding: 0;
}

/* Base Card */
.card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Dashboard Grid System */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.col-span-3 { grid-column: span 3; }
.col-span-4 { grid-column: span 4; }
.col-span-8 { grid-column: span 8; }

/* Stat Cards */
.stat-card {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 160px;
}

.stat-card-top {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    z-index: 2;
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.bg-purple { background: linear-gradient(135deg, #a855f7, #8b5cf6); box-shadow: 0 4px 10px rgba(139, 92, 246, 0.3); }
.bg-green { background: linear-gradient(135deg, #34d399, #10b981); box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3); }
.bg-yellow { background: linear-gradient(135deg, #fbbf24, #f59e0b); box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3); }
.bg-blue { background: linear-gradient(135deg, #60a5fa, #3b82f6); box-shadow: 0 4px 10px rgba(59, 130, 246, 0.3); }

.stat-info h3 {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.stat-info .stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-main);
    margin: 5px 0;
    line-height: 1.2;
}

.stat-info p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.stat-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 1;
}

/* Live Scans List */
.live-scans-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.scan-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}
.scan-item:last-child { border-bottom: none; padding-bottom: 0; }

.scan-user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.scan-user img {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    object-fit: cover;
}

.scan-user-info h4 {
    font-size: 0.95rem;
    color: var(--text-main);
    margin-bottom: 2px;
}

.scan-user-info p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.scan-class {
    font-size: 0.85rem;
    color: var(--text-muted);
    flex: 1;
    text-align: center;
}

.scan-time {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

.scan-time i {
    color: var(--success);
    font-size: 1.2rem;
}

.view-all-link {
    display: block;
    text-align: center;
    margin-top: 1rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
}

/* Today's Summary List */
.summary-list {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.summary-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.summary-label {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.summary-label i {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.summary-item:nth-child(2) .summary-label i { color: var(--success); }
.summary-item:nth-child(3) .summary-label i { color: var(--warning); }
.summary-item:nth-child(4) .summary-label i { color: var(--danger); }

.summary-value {
    font-weight: 600;
    color: var(--text-main);
}

/* Quick Actions */
.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem 0.5rem;
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    font-size: 0.85rem;
    transition: var(--transition);
}

.action-btn:hover {
    border-color: var(--primary);
    box-shadow: 0 10px 20px rgba(79, 70, 229, 0.1);
    transform: translateY(-3px);
}

.action-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

/* Shared components */
.badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}
.badge-primary { background: rgba(79, 70, 229, 0.1); color: var(--primary); }
.badge-success { background: rgba(16, 185, 129, 0.1); color: var(--success); }

.select-sm {
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: white;
    color: var(--text-muted);
    font-size: 0.85rem;
    outline: none;
}

/* Forms & Old components */
.page-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-main);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; color: var(--text-main); }
.form-control {
    width: 100%; padding: 0.8rem 1rem; border: 1px solid var(--border-color);
    border-radius: 10px; background: white; font-size: 1rem; transition: var(--transition);
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.1); }

.btn {
    padding: 0.8rem 1.5rem; border-radius: 10px; border: none; cursor: pointer;
    font-size: 1rem; font-weight: 600; transition: var(--transition); display: inline-flex;
    align-items: center; justify-content: center; gap: 0.5rem; text-decoration: none;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: #4338ca; transform: translateY(-2px); box-shadow: 0 4px 15px rgba(79,70,229,0.4); }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #059669; transform: translateY(-2px); }

.table-container { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
table th, table td { padding: 1rem; text-align: left; border-bottom: 1px solid var(--border-color); }
table th { font-weight: 600; color: var(--text-muted); background: #f8fafc; }
table tr:hover td { background: #f8fafc; }

/* Notifications */
#notification-container {
    position: fixed; top: 20px; right: 20px; z-index: 9999;
    display: flex; flex-direction: column; gap: 10px;
}
.notification {
    padding: 1rem 1.5rem; border-radius: 10px; background: white;
    box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 1rem;
    animation: slideIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border-left: 5px solid var(--primary);
}
.notification.success { border-left-color: var(--success); }
.notification.error { border-left-color: var(--danger); }
.notification.warning { border-left-color: var(--warning); }
@keyframes slideIn { from { transform: translateX(120%); } to { transform: translateX(0); } }
@keyframes slideOut { to { transform: translateX(120%); opacity: 0; } }
.notification.hide { animation: slideOut 0.3s forwards; }

.mobile-toggle { display: none; font-size: 1.5rem; background: none; border: none; color: var(--text-main); cursor: pointer; }

/* Footer */
.main-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.85rem;
}
.footer-left { display: flex; align-items: center; gap: 8px; }
.footer-left i { color: var(--primary); font-size: 1.2rem; }

@media (max-width: 1200px) {
    .col-span-3, .col-span-4, .col-span-8 { grid-column: span 12; }
    .quick-actions-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.active { transform: translateX(0); }
    .main-content { margin-left: 0; width: 100%; padding: 1.5rem; }
    .mobile-toggle { display: block; }
    .top-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .header-right { width: 100%; justify-content: space-between; }
    .quick-actions-grid { grid-template-columns: repeat(2, 1fr); }
    .main-footer { flex-direction: column; gap: 1rem; text-align: center; }
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.5);
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: white;
    margin: auto;
    padding: 0;
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 600px;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.3s ease;
    overflow: hidden;
}

body.dark-theme .modal-content {
    background-color: var(--card-bg);
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-color);
}

.modal-header h2 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--text-main);
}

.modal-header .close {
    color: var(--text-muted);
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.modal-header .close:hover {
    color: var(--danger);
}

.modal-body {
    padding: 2rem;
}

@keyframes modalSlideIn {
    from { transform: translateY(-30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}