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

:root {
    /* Colors */
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --primary-active: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #16a34a;
    --success-bg: #dcfce7;
    --danger-color: #ef4444;
    --danger-bg: #fee2e2;
    --warning-color: #f59e0b;
    --warning-bg: #fef3c7;
    --info-color: #3b82f6;
    --info-bg: #dbeafe;
    
    /* Background Colors */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-hover: #e2e8f0;
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --text-light: #94a3b8;
    
    /* Border Colors */
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    overflow-x: hidden;
}

/* App Container */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.app-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-lg) var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.subtitle {
    font-size: 14px;
    color: var(--text-tertiary);
    font-weight: 500;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--success-color);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Main Content */
.main-content {
    flex: 1;
    padding: var(--spacing-xl);
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--spacing-xl);
}

/* Cards */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--transition-base);
}

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

.card-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-tertiary);
}

.card-header h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.card-body {
    padding: var(--spacing-xl);
}

/* Control Card */
.control-card {
    margin-bottom: var(--spacing-lg);
}

.button-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

/* Buttons */
.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: inherit;
    min-height: 48px;
}

.btn:active {
    transform: scale(0.98);
}

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

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

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

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
}

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

.btn-setting {
    width: 100%;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 2px solid transparent;
    text-align: left;
    justify-content: flex-start;
    margin-top: var(--spacing-md);
}

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

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

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

.btn-close {
    background: transparent;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: var(--text-tertiary);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

/* Progress Card */
.progress-card {
    margin-bottom: var(--spacing-lg);
    border-color: var(--primary-color);
    background: var(--info-bg);
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    color: var(--text-primary);
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: var(--bg-secondary);
    border-radius: 6px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-hover));
    border-radius: 6px;
    transition: width var(--transition-slow);
    width: 0%;
}

/* Domain Stats */
.domain-stats {
    display: flex;
    gap: var(--spacing-lg);
    font-size: 13px;
}

.stat-item {
    color: var(--text-tertiary);
}

.stat-item strong {
    color: var(--text-primary);
    font-weight: 700;
}

/* Domains Grid */
.domains-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.domain-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    min-height: 260px;
}

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

.domain-card .supplier-name {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    word-wrap: break-word;
}

.domain-card .icon {
    font-size: 40px;
    margin: var(--spacing-md) 0;
}

.domain-card .time-check {
    font-size: 11px;
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.domain-card .status-badge-card {
    display: inline-block;
    padding: 6px 14px;
    border-radius: var(--radius-xl);
    font-size: 11px;
    font-weight: 700;
    margin: var(--spacing-sm) 0;
    border: 2px solid;
}

.status-available {
    background: var(--success-bg);
    color: var(--success-color);
    border-color: var(--success-color);
}

.status-blocked {
    background: var(--danger-bg);
    color: var(--danger-color);
    border-color: var(--danger-color);
}

.status-error {
    background: var(--warning-bg);
    color: var(--warning-color);
    border-color: var(--warning-color);
}

.status-unknown {
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    border-color: var(--text-tertiary);
}

.domain-card .open-btn {
    margin-top: auto;
    padding: 10px 16px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    transition: background var(--transition-base);
}

.domain-card .open-btn:hover {
    background: var(--primary-hover);
}

/* Settings */
.setting-group {
    margin-bottom: var(--spacing-lg);
}

.setting-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.setting-description {
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.input, .textarea {
    width: 100%;
    padding: 12px 14px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-secondary);
    transition: border-color var(--transition-base);
}

.input:focus, .textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.textarea {
    resize: vertical;
    font-family: 'Consolas', 'Courier New', monospace;
}

.proxy-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: var(--spacing-lg);
}

.proxy-status.active {
    background: var(--success-bg);
    color: var(--success-color);
    font-weight: 600;
}

/* Notification Card */
.notification-card {
    animation: slideIn 0.3s ease-out;
}

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

.notification-title {
    padding: 14px 16px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 15px;
    margin-bottom: var(--spacing-md);
}

.notification-title.success {
    background: var(--success-bg);
    color: var(--success-color);
    border: 2px solid var(--success-color);
}

.notification-title.error {
    background: var(--danger-bg);
    color: var(--danger-color);
    border: 2px solid var(--danger-color);
}

.notification-content {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 12px;
    max-height: 300px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.modal.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s ease-out;
}

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

.modal-large {
    max-width: 700px;
}

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

.modal-header h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-xl);
    overflow-y: auto;
}

.modal-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.error-message {
    color: var(--danger-color);
    font-size: 13px;
    margin-top: var(--spacing-sm);
    font-weight: 500;
}

.info-message {
    background: var(--info-bg);
    color: var(--info-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 13px;
    margin-top: var(--spacing-md);
}

.info-message code {
    background: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Consolas', monospace;
}

/* Footer */
.app-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) var(--spacing-xl);
    text-align: center;
    color: var(--text-tertiary);
    font-size: 13px;
}

/* Responsive */
@media (max-width: 1200px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .right-panel {
        order: -1;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .button-grid {
        grid-template-columns: 1fr;
    }
    
    .domains-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .domain-stats {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-hover);
    border-radius: 5px;
}

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

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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