/* Route Optimization Dashboard - Modern Professional Design */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Modern Color Palette - Slate & Indigo */
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eef2ff;
    --secondary-color: #0ea5e9;
    --accent-color: #8b5cf6;

    /* Semantic Colors */
    --success-color: #22c55e;
    --success-light: #dcfce7;
    --warning-color: #f59e0b;
    --warning-light: #fef3c7;
    --danger-color: #ef4444;
    --danger-light: #fee2e2;
    --info-color: #0ea5e9;
    --info-light: #e0f2fe;

    /* Neutral Colors - Slate */
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;

    --white: #ffffff;
    --background: #f8fafc;
    --sidebar-bg: #1e293b;
    --sidebar-hover: #334155;

    /* Shadows */
    --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-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* Sidebar width */
    --sidebar-width: 260px;
    --sidebar-collapsed: 72px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--background);
    color: var(--slate-800);
    line-height: 1.5;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.admin-dashboard {
    background: var(--background);
}

/* ===== Layout Structure ===== */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

.admin-container {
    display: flex;
    flex-direction: column;
    width: 100%;
}

/* ===== Login Page ===== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--slate-900) 0%, var(--slate-800) 50%, var(--primary-color) 100%);
    padding: 1rem;
}

.login-container {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 420px;
    padding: 2.5rem;
    animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.login-container.shake {
    animation: shake 0.5s ease;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    box-shadow: var(--shadow-md);
}

.login-logo i {
    font-size: 2rem;
    color: var(--white);
}

.login-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--slate-800);
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--slate-500);
    font-size: 0.9375rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.login-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.login-form label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--slate-700);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.login-form label i {
    color: var(--slate-400);
    font-size: 0.875rem;
}

.login-form input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--slate-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    color: var(--slate-800);
    background: var(--white);
    transition: all var(--transition-fast);
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.login-form input::placeholder {
    color: var(--slate-400);
}

.password-input-wrapper {
    position: relative;
}

.password-input-wrapper input {
    padding-right: 3rem;
}

.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--slate-400);
    transition: color var(--transition-fast);
}

.password-toggle:hover {
    color: var(--slate-600);
}

.login-error {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1rem;
    background: var(--danger-light);
    border: 1px solid var(--danger-color);
    border-radius: var(--radius-md);
    color: var(--danger-color);
    font-size: 0.875rem;
    font-weight: 500;
}

.login-error i {
    font-size: 1rem;
}

.login-btn {
    width: 100%;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.login-btn i {
    font-size: 1rem;
}

.login-footer {
    margin-top: 2rem;
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--slate-200);
}

.login-footer p {
    color: var(--slate-400);
    font-size: 0.8125rem;
}

/* User Menu in Header */
.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: 1rem;
    padding-left: 1rem;
    border-left: 1px solid var(--slate-200);
}

.user-name {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--slate-600);
    font-weight: 500;
    font-size: 0.875rem;
}

.user-name i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.btn-logout {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
}

.btn-logout i {
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .login-container {
        padding: 1.5rem;
        margin: 1rem;
    }

    .login-header h1 {
        font-size: 1.5rem;
    }

    .login-logo {
        width: 60px;
        height: 60px;
    }

    .login-logo i {
        font-size: 1.75rem;
    }

    .user-menu {
        flex-direction: column;
        gap: 0.5rem;
        margin-left: 0;
        padding-left: 0;
        border-left: none;
    }

    .user-name {
        display: none;
    }
}

/* ===== Sidebar Navigation ===== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    color: var(--white);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: width var(--transition-slow);
}

.sidebar-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid var(--sidebar-hover);
}

.sidebar-logo {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.sidebar-title {
    font-size: 1rem;
    font-weight: 600;
    white-space: nowrap;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.nav-section {
    padding: 0 0.75rem;
    margin-bottom: 1.5rem;
}

.nav-section-title {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--slate-400);
    padding: 0 0.75rem;
    margin-bottom: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: var(--radius-md);
    color: var(--slate-300);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    cursor: pointer;
    margin-bottom: 0.25rem;
}

.nav-item:hover {
    background: var(--sidebar-hover);
    color: var(--white);
}

.nav-item.active {
    background: var(--primary-color);
    color: var(--white);
}

.nav-item i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

/* Sidebar Footer with Collapse Button */
.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--sidebar-border);
    margin-top: auto;
}

.sidebar-collapse-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--slate-400);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sidebar-collapse-btn:hover {
    background: var(--sidebar-hover);
    color: var(--white);
}

.sidebar-collapse-btn i {
    width: 20px;
    text-align: center;
    transition: transform var(--transition-fast);
}

/* Collapsed sidebar state */
.sidebar.collapsed {
    width: 70px;
}

.sidebar.collapsed .sidebar-title,
.sidebar.collapsed .nav-section-title,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .sidebar-collapse-btn span {
    display: none;
}

.sidebar.collapsed .sidebar-header {
    justify-content: center;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 0.75rem;
}

.sidebar.collapsed .sidebar-collapse-btn {
    justify-content: center;
}

.sidebar.collapsed .sidebar-collapse-btn i {
    transform: rotate(180deg);
}

.sidebar.collapsed + .main-content {
    margin-left: 70px;
}

@media (max-width: 768px) {
    .sidebar-footer {
        display: none;
    }
}

/* ===== Main Content Area ===== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ===== Header ===== */
.dashboard-header {
    background: var(--white);
    border-bottom: 1px solid var(--slate-200);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 100%;
}

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

.sidebar-toggle {
    display: none !important;
    align-items: center;
    justify-content: center;
}

@media (max-width: 768px) {
    .sidebar-toggle {
        display: flex !important;
    }
}

.dashboard-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--slate-800);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.dashboard-header h1 i {
    color: var(--primary-color);
    font-size: 1.375rem;
}

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

.refresh-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.125rem;
}

.last-updated, .next-refresh {
    color: var(--slate-500);
    font-size: 0.75rem;
    font-weight: 500;
}

.next-refresh {
    color: var(--slate-400);
    font-size: 0.6875rem;
}

/* ===== Stats Section ===== */
.stats-section {
    padding: 1.5rem 2rem;
    background: var(--white);
    border-bottom: 1px solid var(--slate-100);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.stat-card[data-stat="users"]::before {
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.stat-card[data-stat="requests"]::before {
    background: linear-gradient(90deg, var(--success-color), #16a34a);
}

.stat-card[data-stat="otps"]::before {
    background: linear-gradient(90deg, var(--warning-color), #ea580c);
}

.stat-card[data-stat="benchmarks"]::before {
    background: linear-gradient(90deg, var(--danger-color), #dc2626);
}

.stat-card:hover {
    border-color: var(--slate-300);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.stat-icon.users {
    background: var(--primary-light);
    color: var(--primary-color);
}

.stat-icon.requests {
    background: var(--success-light);
    color: var(--success-color);
}

.stat-icon.otps {
    background: var(--warning-light);
    color: var(--warning-color);
}

.stat-icon.benchmarks {
    background: var(--danger-light);
    color: var(--danger-color);
}

.stat-icon.optimizations {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: var(--white);
}

.stat-content h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--slate-800);
    line-height: 1.2;
}

.stat-content p {
    color: var(--slate-600);
    font-weight: 600;
    font-size: 0.875rem;
    margin-top: 0.125rem;
}

.stat-subtitle {
    color: var(--slate-400);
    font-size: 0.75rem;
    font-weight: 500;
    margin-top: 0.25rem;
    display: block;
}

/* ===== Dashboard Main Content ===== */
.dashboard-main {
    flex: 1;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* ===== Dashboard Sections ===== */
.dashboard-section {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--slate-100);
    background: var(--slate-50);
}

.section-header h2 {
    color: var(--slate-800);
    font-size: 1.125rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.section-header h2 i {
    color: var(--primary-color);
    font-size: 1rem;
}

.section-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* ===== Form Controls ===== */
.search-container {
    position: relative;
    display: flex;
    align-items: center;
}

.search-container i {
    position: absolute;
    left: 0.875rem;
    color: var(--slate-400);
    font-size: 0.875rem;
    z-index: 1;
}

.search-input {
    padding: 0.5rem 0.875rem 0.5rem 2.5rem;
    border: 1px solid var(--slate-300);
    border-radius: var(--radius-md);
    background: var(--white);
    color: var(--slate-700);
    font-size: 0.875rem;
    min-width: 220px;
    transition: all var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.search-input::placeholder {
    color: var(--slate-400);
}

.filter-select {
    padding: 0.5rem 2rem 0.5rem 0.875rem;
    border: 1px solid var(--slate-300);
    border-radius: var(--radius-md);
    background: var(--white);
    color: var(--slate-700);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.25rem;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* ===== Buttons ===== */
.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background: var(--white);
    color: var(--slate-700);
    border: 1px solid var(--slate-300);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--slate-50);
    border-color: var(--slate-400);
}

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

.btn-export:hover:not(:disabled) {
    background: #16a34a;
    box-shadow: var(--shadow-sm);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

.btn-icon {
    width: 2.25rem;
    height: 2.25rem;
    padding: 0;
    border-radius: var(--radius-md);
}

/* ===== Tables ===== */
.table-wrapper {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.data-table th {
    background: var(--slate-50);
    color: var(--slate-600);
    padding: 0.875rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--slate-200);
    white-space: nowrap;
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--slate-100);
    vertical-align: middle;
    color: var(--slate-700);
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--slate-50);
}

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

.table-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--slate-100);
    background: var(--slate-50);
    font-size: 0.875rem;
    color: var(--slate-600);
}

.pagination {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ===== User & Company Info ===== */
.user-info {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.user-name {
    font-weight: 600;
    color: var(--slate-800);
}

.user-email {
    color: var(--slate-500);
    font-size: 0.8125rem;
}

.user-phone {
    color: var(--slate-400);
    font-size: 0.75rem;
}

.company-info {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.company-name {
    font-weight: 500;
    color: var(--slate-700);
}

.company-details {
    color: var(--slate-500);
    font-size: 0.8125rem;
}

/* ===== Badges ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    gap: 0.25rem;
}

.badge-success {
    background: var(--success-light);
    color: #15803d;
}

.badge-warning {
    background: var(--warning-light);
    color: #b45309;
}

.badge-danger {
    background: var(--danger-light);
    color: #b91c1c;
}

.badge-info {
    background: var(--info-light);
    color: #0369a1;
}

.badge-neutral {
    background: var(--slate-100);
    color: var(--slate-600);
}

.badge-purple {
    background: #ede9fe;
    color: #7c3aed;
}

/* ===== Activity Table Styles ===== */
.activity-type-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
}

.activity-type-icon[data-type="registration"] {
    background: var(--success-light);
    color: var(--success-color);
}

.activity-type-icon[data-type="benchmark"] {
    background: var(--warning-light);
    color: var(--warning-color);
}

.activity-type-icon[data-type="optimization"] {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: var(--white);
}

.activity-type-icon[data-type="api_request"] {
    background: var(--info-light);
    color: var(--info-color);
}

.activity-details {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.activity-details .activity-description {
    color: var(--slate-700);
    font-weight: 500;
    font-size: 0.875rem;
    line-height: 1.4;
}

.activity-details .activity-badge {
    display: inline-flex;
}

.activity-details .activity-badge .badge {
    font-size: 0.6875rem;
}

.activity-time {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--slate-500);
    font-size: 0.8125rem;
    white-space: nowrap;
}

.activity-time i {
    font-size: 0.75rem;
    color: var(--slate-400);
}

.activity-row:hover {
    background: var(--slate-50);
}

/* ===== Analytics Grid ===== */
.analytics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    padding: 1.5rem;
}

@media (max-width: 1024px) {
    .analytics-grid {
        grid-template-columns: 1fr;
    }
}

.chart-container {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.chart-container h3 {
    color: var(--slate-700);
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.chart-container canvas {
    max-height: 280px;
}

/* ===== Activity Feed ===== */
.activity-feed {
    max-height: 480px;
    overflow-y: auto;
    padding: 1rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 0.875rem;
    padding: 1rem;
    background: var(--slate-50);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--primary-color);
    transition: all var(--transition-fast);
}

.activity-item:hover {
    background: var(--slate-100);
}

.activity-item[data-type="registration"] {
    border-left-color: var(--success-color);
}

.activity-item[data-type="benchmark"] {
    border-left-color: var(--warning-color);
}

.activity-icon {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.activity-item[data-type="registration"] .activity-icon {
    background: var(--success-light);
    color: var(--success-color);
}

.activity-item[data-type="benchmark"] .activity-icon {
    background: var(--warning-light);
    color: var(--warning-color);
}

.activity-item[data-type="optimization"] .activity-icon {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: var(--white);
}

.activity-item[data-type="api_request"] .activity-icon {
    background: var(--info-light);
    color: var(--info-color);
}

.activity-content {
    flex: 1;
    min-width: 0;
}

.activity-description {
    color: var(--slate-700);
    font-weight: 500;
    font-size: 0.875rem;
    line-height: 1.4;
}

.activity-timestamp {
    color: var(--slate-400);
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

/* ===== Loading States ===== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-content {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-xl);
    max-width: 280px;
}

.loading-spinner {
    width: 2.5rem;
    height: 2.5rem;
    border: 3px solid var(--slate-200);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-content p {
    color: var(--slate-600);
    font-weight: 500;
    font-size: 0.875rem;
}

.stat-card.loading .stat-content h3 {
    background: linear-gradient(90deg, var(--slate-200), var(--slate-100), var(--slate-200));
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    color: transparent;
    border-radius: var(--radius-sm);
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ===== Modals ===== */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1100;
    padding: 1rem;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 480px;
    width: 100%;
    max-height: calc(100vh - 2rem);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-content.large-modal {
    max-width: 1100px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--slate-200);
}

.modal-header h3 {
    color: var(--slate-800);
    font-size: 1.125rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-header h3 i {
    color: var(--primary-color);
}

.modal-close {
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--slate-400);
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--slate-100);
    color: var(--slate-600);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--slate-200);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    background: var(--slate-50);
}

/* ===== Notification Toast ===== */
.notification-toast {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    background: var(--slate-800);
    color: var(--white);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 1200;
    max-width: 400px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    flex: 1;
}

.toast-content i {
    font-size: 1rem;
}

#toastMessage {
    font-size: 0.875rem;
    font-weight: 500;
}

.toast-close {
    background: transparent;
    border: none;
    color: var(--slate-400);
    cursor: pointer;
    padding: 0.25rem;
    font-size: 1.25rem;
    line-height: 1;
}

.toast-close:hover {
    color: var(--white);
}

.notification-toast.success {
    background: var(--success-color);
}

.notification-toast.error {
    background: var(--danger-color);
}

.notification-toast.warning {
    background: var(--warning-color);
    color: var(--slate-900);
}

/* ===== User Details Modal Content ===== */
.user-profile-header {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.5rem;
    background: var(--sidebar-bg);
    border-radius: var(--radius-lg);
    margin-bottom: 1.25rem;
}

.user-avatar-large {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 3px solid rgba(255, 255, 255, 0.3);
}

.user-avatar-large span {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
}

.user-profile-info {
    flex: 1;
    min-width: 0;
}

.user-profile-info h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.375rem;
    line-height: 1.2;
}

.user-profile-info .user-email {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.9375rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.user-profile-info .user-email i {
    font-size: 0.875rem;
    opacity: 0.8;
}

.user-profile-badges {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.user-profile-badges .badge {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.user-profile-badges .badge-success {
    background: rgba(34, 197, 94, 0.3);
    border-color: rgba(34, 197, 94, 0.5);
}

.user-profile-badges .badge-warning {
    background: rgba(245, 158, 11, 0.3);
    border-color: rgba(245, 158, 11, 0.5);
}

.user-profile-badges .badge-danger {
    background: rgba(239, 68, 68, 0.3);
    border-color: rgba(239, 68, 68, 0.5);
}

@media (max-width: 480px) {
    .user-profile-header {
        flex-direction: column;
        text-align: center;
    }

    .user-profile-info .user-email {
        justify-content: center;
    }

    .user-profile-badges {
        justify-content: center;
    }
}

.user-details-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

@media (max-width: 768px) {
    .user-details-grid {
        grid-template-columns: 1fr;
    }
}

.user-details-section,
.detail-section {
    background: var(--slate-50);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    border: 1px solid var(--slate-100);
}

.user-details-section h4,
.detail-section h4 {
    color: var(--slate-800);
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--primary-light);
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.user-details-section h4 i,
.detail-section h4 i {
    color: var(--primary-color);
    font-size: 1rem;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.625rem 0;
    border-bottom: 1px solid var(--slate-200);
    gap: 1rem;
}

.detail-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.detail-label {
    color: var(--slate-500);
    font-size: 0.8125rem;
    flex-shrink: 0;
}

.detail-value {
    color: var(--slate-800);
    font-weight: 500;
    font-size: 0.8125rem;
    text-align: right;
    word-break: break-word;
}

.detail-value code,
.api-key-display {
    background: var(--slate-200);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.75rem;
    color: var(--slate-700);
    word-break: break-all;
    max-width: 280px;
    display: inline-block;
}

/* Usage Chart Container in User Details */
.usage-chart-container {
    grid-column: 1 / -1;
    background: var(--slate-50);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    border: 1px solid var(--slate-100);
    margin-top: 0.5rem;
}

.usage-chart-container h4 {
    color: var(--slate-800);
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--primary-light);
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.usage-chart-container h4 i {
    color: var(--primary-color);
    font-size: 1rem;
}

/* ===== Page Sections ===== */
.page-section {
    display: none;
}

.page-section.active {
    display: block;
}

/* ===== Hidden Utility ===== */
.hidden {
    display: none !important;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: var(--sidebar-collapsed);
    }

    .sidebar-title,
    .nav-section-title,
    .nav-item span {
        display: none;
    }

    .sidebar-header {
        justify-content: center;
    }

    .nav-item {
        justify-content: center;
    }

    .nav-item i {
        margin: 0;
    }

    .main-content {
        margin-left: var(--sidebar-collapsed);
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .dashboard-header {
        padding: 1rem;
    }

    .dashboard-header h1 {
        font-size: 1.25rem;
    }

    .stats-section {
        padding: 1rem;
    }

    .dashboard-main {
        padding: 1rem;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .section-controls {
        width: 100%;
    }

    .search-input {
        width: 100%;
        min-width: auto;
    }
}

/* ===== Scrollbar Styling ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--slate-100);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: var(--slate-300);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--slate-400);
}

/* ===== Focus Visible ===== */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ===== Selection ===== */
::selection {
    background: var(--primary-light);
    color: var(--primary-color);
}

/* ===== Print Styles ===== */
@media print {
    .sidebar,
    .header-controls,
    .section-controls,
    .btn,
    .pagination {
        display: none !important;
    }

    .main-content {
        margin-left: 0;
    }

    .dashboard-section {
        break-inside: avoid;
    }
}