/* LHSHub v2.0 - Minimal Grayscale Theme */

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f0f0f0;
    --border-color: #e0e0e0;
    --border-dark: #d0d0d0;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-muted: #999999;
    --accent-primary: #000000;
    --accent-hover: #333333;
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: hidden;
}

/* ==================== LOGIN PAGE ==================== */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
}

.login-box {
    width: 100%;
    max-width: 400px;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 48px 40px;
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo-icon {
    width: 64px;
    height: 64px;
    background: var(--accent-primary);
    border-radius: var(--radius-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 28px;
    color: var(--bg-primary);
    margin-bottom: 16px;
}

.login-logo h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.login-logo p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input {
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 15px;
    color: var(--text-primary);
    background: var(--bg-primary);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.btn {
    padding: 14px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
}

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

.btn-secondary:hover {
    background: var(--bg-tertiary);
}

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

.btn-danger:hover {
    background: #dc2626;
}

.btn-sm {
    padding: 8px 14px;
    font-size: 13px;
}

.login-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: var(--error);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    display: none;
}

.login-error.show {
    display: block;
}

/* Account expired/inactive message */
.account-status-message {
    text-align: center;
    padding: 20px;
    background: #fffbeb;
    border: 1px solid #fcd34d;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.account-status-message.expired {
    background: #fef2f2;
    border-color: #fecaca;
}

.account-status-message h3 {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.account-status-message p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ==================== MAIN APP ==================== */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--accent-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    color: var(--bg-primary);
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-menu {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: pointer;
}

.nav-item:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

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

.nav-item.active svg {
    stroke: var(--bg-primary);
}

.nav-item svg {
    flex-shrink: 0;
    stroke: currentColor;
}

.badge {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 8px;
    background-color: var(--text-muted);
    color: var(--bg-primary);
    border-radius: 10px;
    margin-left: auto;
}

.sidebar-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-secondary);
}

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

.user-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 12px;
    color: var(--text-muted);
}

.logout-btn {
    width: 100%;
    padding: 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.logout-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Main Content */
.main-content {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
}

/* App Sections */
.app-section {
    display: none;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.app-section.active {
    display: flex;
}

.app-header {
    padding: 24px 32px;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}

.app-header h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
}

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

/* Proxy App */
.proxy-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 24px 32px;
    overflow: hidden;
}

.address-bar-container {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.address-bar {
    flex: 1;
    display: flex;
    align-items: center;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 4px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.address-bar:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

.address-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 12px;
    color: var(--text-muted);
}

#url-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 14px;
    padding: 12px 0;
}

#url-input::placeholder {
    color: var(--text-muted);
}

.go-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background-color: var(--accent-primary);
    border: none;
    border-radius: var(--radius-md);
    color: var(--bg-primary);
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.go-btn:hover {
    background-color: var(--accent-hover);
}

/* Browser View */
.browser-view {
    flex: 1;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
}

#proxy-frame {
    width: 100%;
    height: 100%;
    border: none;
    background-color: white;
}

/* Welcome Screen */
.welcome-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    padding: 40px;
}

.welcome-content {
    max-width: 500px;
}

.welcome-icon {
    color: var(--text-muted);
    margin-bottom: 24px;
}

.welcome-content h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}

.welcome-content p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.quick-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.quick-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-right: 4px;
}

.quick-link {
    padding: 8px 16px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.quick-link:hover {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--bg-primary);
}

/* Loading Screen */
.loading-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: 16px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

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

/* Error Screen */
.error-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    padding: 40px;
}

.error-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.error-screen h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.error-screen p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    max-width: 400px;
}

/* ==================== ADMIN PANEL ==================== */
.admin-container {
    flex: 1;
    padding: 24px 32px;
    overflow-y: auto;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.admin-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.stat-card .stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.users-table-container {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.users-table th,
.users-table td {
    padding: 14px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.users-table th {
    background: var(--bg-secondary);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.users-table td {
    font-size: 14px;
}

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

.users-table tr:hover td {
    background: var(--bg-secondary);
}

.status-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.status-badge.active {
    background: #dcfce7;
    color: #166534;
}

.status-badge.expired {
    background: #fee2e2;
    color: #991b1b;
}

.status-badge.inactive {
    background: #f3f4f6;
    color: #6b7280;
}

.admin-badge {
    background: var(--accent-primary);
    color: var(--bg-primary);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
    margin-left: 8px;
}

.action-btns {
    display: flex;
    gap: 8px;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s;
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 440px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: transform 0.2s;
}

.modal-overlay.show .modal {
    transform: scale(1);
}

.modal-header {
    padding: 24px 24px 0;
}

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

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 0 24px 24px;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Settings */
.settings-container {
    flex: 1;
    padding: 24px 32px;
    overflow-y: auto;
}

.settings-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    max-width: 600px;
}

.settings-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.settings-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-dark);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

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

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 70px;
    }

    .logo-text,
    .nav-label,
    .nav-item span,
    .user-details,
    .sidebar-footer .logout-btn span {
        display: none;
    }

    .nav-item {
        justify-content: center;
        padding: 12px;
    }

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

    .app-header,
    .proxy-container,
    .settings-container,
    .admin-container {
        padding: 16px 20px;
    }

    .login-box {
        padding: 32px 24px;
    }
}