/* DNS Check - Main Stylesheet */

:root {
    --primary: #1e40af;
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;

    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-dark: #1e293b;

    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;

    --border: #e2e8f0;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);

    --radius: 8px;
    --radius-lg: 12px;
}

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

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

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

.sidebar {
    width: 260px;
    background: var(--bg-dark);
    color: white;
    padding: 20px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 0 20px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 20px;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
}

.sidebar-logo svg {
    width: 32px;
    height: 32px;
    color: var(--primary-light);
}

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

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.2s;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255,255,255,0.1);
    color: white;
}

.sidebar-nav a.active {
    border-left: 3px solid var(--primary-light);
}

.sidebar-nav svg {
    width: 20px;
    height: 20px;
}

.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 30px;
}

/* Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Cards */
.card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 24px;
    margin-bottom: 20px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.stat-icon.primary { background: var(--primary); }
.stat-icon.success { background: var(--success); }
.stat-icon.warning { background: var(--warning); }
.stat-icon.danger { background: var(--danger); }
.stat-icon.info { background: var(--info); }

.stat-content h3 {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1;
}

.stat-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 4px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn svg {
    width: 18px;
    height: 18px;
}

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

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

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

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

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 0.75rem;
}

.btn-icon {
    padding: 8px;
}

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

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

th, td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background: var(--bg-primary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-secondary);
}

tr:hover {
    background: var(--bg-primary);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

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

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

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

.badge-info {
    background: #e0f2fe;
    color: #075985;
}

.badge-secondary {
    background: #f1f5f9;
    color: #475569;
}

/* Health Score */
.health-score {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.health-bar {
    width: 60px;
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
}

.health-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s;
}

.health-bar-fill.excellent { background: var(--success); }
.health-bar-fill.good { background: #84cc16; }
.health-bar-fill.fair { background: var(--warning); }
.health-bar-fill.poor { background: var(--danger); }

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 0.875rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.875rem;
    transition: border-color 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

/* 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.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(-20px);
    transition: transform 0.2s;
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-body {
    padding: 24px;
}

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

/* Alerts */
.alert {
    padding: 16px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.alert svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
}

.alert-danger {
    background: #fee2e2;
    color: #991b1b;
}

.alert-info {
    background: #e0f2fe;
    color: #075985;
}

/* Alert List */
.alert-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    border-bottom: 1px solid var(--border);
}

.alert-item:last-child {
    border-bottom: none;
}

.alert-item.unread {
    background: #eff6ff;
}

.alert-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.alert-icon svg {
    width: 20px;
    height: 20px;
    color: white;
}

.alert-icon.critical { background: var(--danger); }
.alert-icon.warning { background: var(--warning); }
.alert-icon.info { background: var(--info); }

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.alert-message {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.alert-time {
    color: var(--text-light);
    font-size: 0.75rem;
    margin-top: 4px;
}

/* Domain Details */
.domain-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.domain-icon {
    width: 64px;
    height: 64px;
    background: var(--primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.domain-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.domain-info h1 {
    font-size: 1.5rem;
}

.domain-info .badges {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.info-item:last-child {
    border-bottom: none;
}

.info-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.info-value {
    font-weight: 500;
}

/* Subdomains List */
.subdomain-list {
    display: grid;
    gap: 8px;
}

.subdomain-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-primary);
    border-radius: var(--radius);
}

.subdomain-name {
    font-family: monospace;
    font-size: 0.875rem;
}

.subdomain-ip {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

/* Loading */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--bg-dark);
    color: white;
    padding: 16px 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideIn 0.3s ease;
}

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

.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.warning { border-left: 4px solid var(--warning); }

/* Impersonate Bar */
.impersonate-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 48px;
    background: linear-gradient(90deg, #f59e0b, #d97706);
    color: white;
    z-index: 2000;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.impersonate-bar-content {
    max-width: 100%;
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.875rem;
}

.impersonate-bar-content strong {
    font-weight: 600;
}

.impersonate-bar .btn-sm {
    padding: 6px 12px;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 6px;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

.impersonate-bar .btn-sm:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

/* Upgrade Bar (Free Plan) */
.upgrade-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 48px;
    background: linear-gradient(90deg, #1e40af, #3b82f6);
    color: white;
    z-index: 1999;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.upgrade-bar-content {
    max-width: 100%;
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.875rem;
}

.upgrade-bar-content strong {
    font-weight: 600;
}

.upgrade-bar .btn-sm {
    padding: 6px 12px;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 6px;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

.upgrade-bar .btn-sm:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

/* User Menu */
.user-menu {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius);
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.user-name {
    font-weight: 500;
    font-size: 0.875rem;
}

.user-email {
    color: var(--text-light);
    font-size: 0.75rem;
}

/* File Upload */
.file-upload {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.file-upload:hover {
    border-color: var(--primary);
    background: var(--bg-primary);
}

.file-upload.dragover {
    border-color: var(--primary);
    background: rgba(30, 64, 175, 0.05);
}

.file-upload svg {
    width: 48px;
    height: 48px;
    color: var(--text-light);
    margin-bottom: 12px;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}

.tab {
    padding: 12px 20px;
    background: none;
    border: none;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all 0.2s;
}

.tab:hover {
    color: var(--text-primary);
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Mobile Menu Button - Base styles (must come before media queries) */
.mobile-menu-btn {
    display: none;
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 2100;
    background: var(--bg-dark);
    color: white;
    border: none;
    border-radius: var(--radius);
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: background 0.2s;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.mobile-menu-btn:hover,
.mobile-menu-btn:active {
    background: var(--primary);
}

.mobile-menu-btn svg {
    width: 22px;
    height: 22px;
    pointer-events: none;
}

/* Sidebar Overlay (backdrop) - Base styles */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2099;
    backdrop-filter: blur(2px);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        z-index: 2100 !important;
        transition: transform 0.3s ease;
    }

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

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .mobile-menu-btn {
        display: flex;
    }
}

/* Push content down when top bars are visible */
@media (max-width: 1024px) {
    .main-content {
        padding-top: 72px;
    }

    .page-header {
        padding-top: 8px;
    }
}

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

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .modal {
        margin: 20px;
        max-width: calc(100% - 40px);
    }
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

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

.login-logo {
    text-align: center;
    margin-bottom: 30px;
}

.login-logo svg {
    width: 64px;
    height: 64px;
    color: var(--primary);
}

.login-logo h1 {
    margin-top: 12px;
    font-size: 1.5rem;
}

.login-form .form-group {
    margin-bottom: 16px;
}

.login-form .btn {
    width: 100%;
    justify-content: center;
    margin-top: 8px;
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.login-footer a {
    color: var(--primary);
    text-decoration: none;
}

/* Action Dropdown */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    right: 0;
    top: 100%;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s;
    z-index: 50;
}

.dropdown.open .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.875rem;
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
}

.dropdown-item:hover {
    background: var(--bg-primary);
}

.dropdown-item.danger {
    color: var(--danger);
}

.dropdown-divider {
    height: 1px;
    background: var(--border);
    margin: 4px 0;
}

/* Search */
.search-box {
    position: relative;
}

.search-box input {
    padding-left: 40px;
}

.search-box svg {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-light);
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 24px;
}

.pagination button {
    padding: 8px 12px;
    border: 1px solid var(--border);
    background: white;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.875rem;
}

.pagination button:hover {
    background: var(--bg-primary);
}

.pagination button.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

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