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

:root {
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --primary-light: #eff6ff;
    --primary-50: #f0f7ff;
    --primary-100: #dbeafe;
    --secondary: #64748b;
    --success: #10b981;
    --success-light: #ecfdf5;
    --warning: #f59e0b;
    --warning-light: #fffbeb;
    --danger: #ef4444;
    --danger-light: #fef2f2;
    --bg-main: #f1f5f9;
    --bg-sidebar: #0f172a;
    --sidebar-text: #94a3b8;
    --sidebar-active: #ffffff;
    --sidebar-hover-bg: #1e293b;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-xl: 16px;
    --radius-lg: 12px;
    --radius-md: 8px;
    --radius-sm: 6px;
    --transition: all 0.2s ease;
}

* { box-sizing: border-box; }

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    margin: 0;
    display: flex;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Sidebar Styling */
.sidebar {
    width: 280px;
    background-color: var(--bg-sidebar);
    color: var(--sidebar-text);
    height: 100vh;
    padding: 1.5rem 1rem;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    z-index: 100;
    overflow-y: auto;
    overflow-x: hidden;
    border-right: 1px solid rgba(255,255,255,0.05);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    margin-bottom: 2rem;
}

.sidebar-logo span {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--sidebar-active);
    letter-spacing: -0.02em;
}

.sidebar nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar nav ul li {
    margin-bottom: 0.25rem;
}

.sidebar nav ul li a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.7rem 1rem;
    color: var(--sidebar-text);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: var(--transition);
}

.sidebar nav ul li a svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar nav ul li a:hover {
    background-color: var(--sidebar-hover-bg);
    color: var(--sidebar-active);
}

.sidebar nav ul li a.active {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
}

/* Header Styling */
header {
    height: 68px;
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 90;
}

.header-left {
    display: flex;
    align-items: center;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

/* Main Content Area */
.wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.content {
    padding: 2rem;
    flex: 1;
}

/* Card Styling */
.card {
    background-color: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    transition: var(--transition);
}

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

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

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

.page-header-left h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

.page-header-left p {
    margin: 0.375rem 0 0;
    font-size: 0.9375rem;
    color: var(--text-muted);
}

/* Badge Styling */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.badge-active { background-color: #dcfce7; color: #15803d; }
.badge-none { background-color: #fee2e2; color: #b91c1c; }
.badge-warning { background-color: #fef3c7; color: #92400e; }
.badge-info { background-color: #dbeafe; color: #1e40af; }

/* Button Styling */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background-color: #e2e8f0;
}

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

.btn-danger:hover {
    background-color: #dc2626;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.4);
}

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

.btn-success:hover {
    background-color: #059669;
}

.btn-lg {
    padding: 0.8rem 1.75rem;
    font-size: 1rem;
    border-radius: var(--radius-lg);
}

/* Table Styling */
.table-container {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table-simple {
    width: 100%;
    border-collapse: collapse;
}

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

.table-simple th, .table-simple td {
    text-align: left;
    padding: 0.875rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
}

.table-simple th {
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.04em;
}

.table-simple tbody tr {
    transition: background 0.15s;
}

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

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

/* Form Styling */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.form-input, .form-textarea, .form-select {
    width: 100%;
    padding: 0.7rem 1rem;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.9375rem;
    color: var(--text-main);
    background: var(--card-bg);
    outline: none;
    transition: var(--transition);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

.form-hint {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 0.375rem;
}

/* Alert / Notice */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.alert-success { background: var(--success-light); color: #065f46; border: 1px solid #a7f3d0; }
.alert-warning { background: var(--warning-light); color: #92400e; border: 1px solid #fde68a; }
.alert-danger { background: var(--danger-light); color: #991b1b; border: 1px solid #fecaca; }
.alert-info { background: var(--primary-50); color: #1e40af; border: 1px solid var(--primary-100); }

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.empty-state svg {
    opacity: 0.3;
    margin-bottom: 1.25rem;
}

.empty-state h3 {
    font-size: 1.125rem;
    color: var(--text-main);
    margin: 0 0 0.5rem;
}

.empty-state p {
    font-size: 0.9375rem;
    margin: 0 0 1.5rem;
}

/* Grid helpers */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-in {
    animation: fadeIn 0.3s ease forwards;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    body {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        padding: 1rem;
        display: none;
    }

    .sidebar.mobile-open {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        height: 100vh;
        z-index: 200;
    }

    #mobileMenuBtn {
        display: inline-flex !important;
    }

    header {
        padding: 0 1rem;
        height: 56px;
    }

    header h2 {
        font-size: 1rem !important;
    }

    .breadcrumb {
        display: none !important;
    }

    .header-search {
        display: none !important;
    }

    .header-right {
        gap: 0.5rem;
    }

    header > .header-right > div:last-of-type:not(.notif-wrapper):not(.user-profile) {
        display: none;
    }

    .content {
        padding: 1rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .grid-3 {
        grid-template-columns: 1fr;
    }

    table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .page-header h1 {
        font-size: 1.375rem;
    }
}