/* ========================================
   VPS Control - Linear Aesthetic Theme
   ======================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-bg-primary: #0A0A0F;
    --color-bg-secondary: #12121A;
    --color-bg-tertiary: #1A1A24;
    --color-bg-elevated: #22222E;
    
    --color-border-primary: rgba(255, 255, 255, 0.06);
    --color-border-secondary: rgba(255, 255, 255, 0.12);
    --color-border-accent: rgba(0, 217, 255, 0.3);
    
    --color-text-primary: #FFFFFF;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-text-tertiary: rgba(255, 255, 255, 0.5);
    --color-text-muted: rgba(255, 255, 255, 0.3);
    
    --color-accent: #00D9FF;
    --color-accent-secondary: #00B4D8;
    --color-accent-glow: rgba(0, 217, 255, 0.15);
    
    --color-success: #00FF88;
    --color-warning: #FFB800;
    --color-danger: #FF3366;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px var(--color-accent-glow);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* ========================================
   Header
   ======================================== */
.header {
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border-primary);
    backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 100;
    animation: slideDown 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-icon {
    color: var(--color-accent);
    filter: drop-shadow(0 0 8px var(--color-accent-glow));
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.logo-text {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: -8px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.btn-icon {
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-md);
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.btn-icon:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-accent);
    color: var(--color-accent);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-icon:active {
    transform: translateY(0);
}

/* 图标按钮带文字标签（如远程桌面区的新窗口按钮） */
.btn-icon-text {
    height: 36px;
    padding: 0 14px;
    border: 1px solid rgba(0, 217, 255, 0.3);
    border-radius: var(--radius-md);
    background: rgba(0, 217, 255, 0.08);
    color: var(--color-accent);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition-base);
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
}
.btn-icon-text:hover {
    background: rgba(0, 217, 255, 0.15);
    border-color: rgba(0, 217, 255, 0.6);
    box-shadow: 0 0 12px rgba(0, 217, 255, 0.2);
    transform: translateY(-1px);
}
.btn-icon-text:active {
    transform: translateY(0);
}

/* 重新加载按钮（全覆盖遮罩内） */
.btn-reload-remote {
    padding: 14px 28px;
    border: 1px solid rgba(0, 217, 255, 0.5);
    border-radius: var(--radius-lg);
    background: rgba(0, 217, 255, 0.1);
    color: var(--color-accent);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 500;
    transition: all var(--transition-base);
}
.btn-reload-remote:hover {
    background: rgba(0, 217, 255, 0.2);
    border-color: var(--color-accent);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.3);
    transform: translateY(-2px);
}
.btn-reload-remote:active {
    transform: translateY(0);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: var(--radius-lg);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 0 8px var(--color-success);
    }
    50% {
        opacity: 0.5;
        box-shadow: 0 0 4px var(--color-success);
    }
}

.status-text {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-success);
}

/* ========================================
   Login Container
   ======================================== */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    animation: fadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.login-title {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: 14px;
    transition: all var(--transition-base);
}

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

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

.login-btn {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-accent-secondary), var(--color-accent));
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-bg-primary);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-base);
    margin-top: var(--spacing-md);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.login-btn:active {
    transform: translateY(0);
}

/* ========================================
   Button Styles
   ======================================== */
.btn-danger {
    background: rgba(255, 51, 102, 0.1) !important;
    border-color: rgba(255, 51, 102, 0.3) !important;
    color: var(--color-danger) !important;
}

.btn-danger:hover {
    background: rgba(255, 51, 102, 0.2) !important;
    border-color: var(--color-danger) !important;
    box-shadow: 0 0 20px rgba(255, 51, 102, 0.3) !important;
}

/* ========================================
   Main Content
   ======================================== */
.main-content {
    max-width: 1346px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    /*gap: var(--spacing-2xl);*/
    gap: 16px;
    animation: fadeIn 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s backwards;
}

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

/* Section Styles */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.5px;
    position: relative;
    padding-left: var(--spacing-md);
}

.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 24px;
    background: var(--color-accent);
    border-radius: 2px;
    box-shadow: 0 0 8px var(--color-accent-glow);
}

.update-time {
    font-size: 13px;
    color: var(--color-text-tertiary);
}

/* ========================================
   Overview Grid
   ======================================== */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.metric-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.metric-card:hover {
    border-color: var(--color-border-secondary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

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

.metric-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.metric-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.cpu-icon {
    background: rgba(0, 217, 255, 0.1);
    color: var(--color-accent);
}

.memory-icon {
    background: rgba(138, 43, 226, 0.1);
    color: #A855F7;
}

.disk-icon {
    background: rgba(255, 184, 0, 0.1);
    color: var(--color-warning);
}

.network-icon {
    background: rgba(0, 255, 136, 0.1);
    color: var(--color-success);
}

.metric-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.metric-value {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
}

.value-number {
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.value-unit {
    font-size: 20px;
    font-weight: 500;
    color: var(--color-text-tertiary);
}

.network-value {
    font-size: 18px;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.network-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.network-item svg {
    color: var(--color-accent);
}

/* Progress Bar */
.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--color-bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent-secondary), var(--color-accent));
    border-radius: 3px;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* Metric Details */
.metric-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

/* Location Grid */
.location-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.detail-label {
    font-size: 11px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-value {
    font-size: 13px;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* ========================================
   System Info Section
   ======================================== */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.info-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    transition: all var(--transition-base);
}

.info-card:hover {
    border-color: var(--color-border-secondary);
    box-shadow: var(--shadow-md);
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border-primary);
}

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

.info-label {
    font-size: 13px;
    color: var(--color-text-tertiary);
    font-weight: 500;
}

.info-value {
    font-size: 14px;
    color: var(--color-text-primary);
    font-weight: 500;
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
}

/* ========================================
   Disk Section
   ======================================== */
.disk-table-container {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.disk-table thead {
    background: var(--color-bg-tertiary);
}

.disk-table th {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--color-border-secondary);
}

.disk-table td {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 14px;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border-primary);
}

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

.disk-table tbody tr:hover {
    background: var(--color-bg-tertiary);
}

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

.loading-text {
    text-align: center;
    color: var(--color-text-tertiary);
    padding: var(--spacing-xl);
}

/* ========================================
   Network Section
   ======================================== */
.network-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.network-interface-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
}

.network-interface-card:hover {
    border-color: var(--color-border-secondary);
    box-shadow: var(--shadow-md);
}

.interface-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border-primary);
}

/* ========================================
   Error Modal
   ======================================== */
.error-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.error-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
}

.error-modal-content {
    position: relative;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.error-modal-icon {
    color: var(--color-danger);
    margin-bottom: var(--spacing-lg);
    animation: shake 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.error-modal-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.error-modal-message {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.error-modal-btn {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-danger);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.error-modal-btn:hover {
    background: #ff4d7a;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 51, 102, 0.4);
}

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

/* ========================================
   Connect Info Section
   ======================================== */
.connect-info-section {
    /*margin-bottom: var(--spacing-xl);*/
}

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

.password-value {
    font-family: monospace;
    letter-spacing: 2px;
    color: var(--color-text-tertiary);
}

.expiry-value {
    font-family: monospace;
    font-size: 13px;
}

.expiry-badge {
    display: inline-block;
    padding: 2px 8px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: var(--radius-sm);
    color: var(--color-success);
    font-size: 12px;
    font-weight: 500;
    margin-left: var(--spacing-sm);
}

.expiry-badge.warning {
    background: rgba(255, 184, 0, 0.1);
    border-color: rgba(255, 184, 0, 0.3);
    color: var(--color-warning);
}

.expiry-badge.danger {
    background: rgba(255, 51, 102, 0.1);
    border-color: rgba(255, 51, 102, 0.3);
    color: var(--color-danger);
}

.btn-copy {
    padding: 4px 8px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-sm);
    color: var(--color-text-tertiary);
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.btn-copy:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* ========================================
   Reset System
   ======================================== */
.reset-system-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.system-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-base);
}

.system-select:hover {
    border-color: var(--color-accent);
}

.system-select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.btn-reset {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-danger);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-base);
}

.btn-reset:hover:not(:disabled) {
    background: #ff4d7a;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 51, 102, 0.4);
}

.btn-reset:active:not(:disabled) {
    transform: translateY(0);
}

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

.btn-shutdown {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-warning);
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-bg-primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-base);
}

.btn-shutdown:hover:not(:disabled) {
    background: #ffc933;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 184, 0, 0.4);
}

.btn-shutdown:active:not(:disabled) {
    transform: translateY(0);
}

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

/* ========================================
   Offline Modal
   ======================================== */
.offline-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.offline-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
}

.offline-modal-content {
    position: relative;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    max-width: 480px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-lg), 0 0 40px rgba(255, 51, 102, 0.2);
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.offline-modal-icon {
    color: var(--color-danger);
    margin-bottom: var(--spacing-lg);
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(0.95);
    }
}

.offline-modal-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.offline-modal-message {
    font-size: 15px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.offline-modal-submessage {
    font-size: 14px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xl);
    font-weight: 500;
}

.offline-modal-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.offline-modal-btn {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-base);
}

.offline-modal-btn-cancel {
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-secondary);
}

.offline-modal-btn-cancel:hover {
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
    border-color: var(--color-border-accent);
}

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

.offline-modal-btn-confirm:hover {
    background: #ff4d7a;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 51, 102, 0.4);
}

.offline-modal-btn-confirm:active {
    transform: translateY(0);
}

/* ========================================
   Server Actions Section (三栏布局)
   ======================================== */
.server-actions-section {
    /*margin-bottom: var(--spacing-xl);*/
}

.server-actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.action-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
}

.action-card:hover {
    border-color: var(--color-border-secondary);
    box-shadow: var(--shadow-md);
}

/* ========================================
   Custom Select (自定义下拉框)
   ======================================== */
.custom-select-wrapper {
    position: relative;
    width: calc(100% - 70px);
}

.custom-select {
    position: relative;
    width: 100%;
}

.custom-select-trigger {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.custom-select-trigger:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-border-secondary);
}

.custom-select.open .custom-select-trigger {
    background: var(--color-bg-elevated);
    border-color: var(--color-border-secondary);
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

.select-icon-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-tertiary);
}

.custom-select-text {
    flex: 1;
    font-size: 14px;
    color: var(--color-text-primary);
}

.custom-select-arrow {
    color: var(--color-text-tertiary);
    transition: transform var(--transition-base);
}

.custom-select.open .custom-select-arrow {
    transform: rotate(180deg);
}

.custom-select-options {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-secondary);
    border-top: none;
    border-bottom-left-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
    z-index: 100;
}

.custom-select.open .custom-select-options {
    max-height: 300px;
}

.custom-select-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-base);
    border-bottom: 1px solid var(--color-border-primary);
}

.custom-select-option:last-child {
    border-bottom: none;
}

.custom-select-option:hover {
    background: var(--color-bg-tertiary);
}

.custom-select-option.selected {
    background: var(--color-bg-tertiary);
}

.option-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--color-bg-elevated);
}

.option-icon.ubuntu-icon {
    color: #E95420;
}

.option-icon.windows-icon {
    color: #0078D4;
}

.option-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.option-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-primary);
}

.option-subtitle {
    font-size: 12px;
    color: var(--color-text-tertiary);
}

.option-badge {
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.option-badge.arm-badge {
    background: rgba(255, 107, 107, 0.15);
    color: #FF6B6B;
}

.option-badge.x86-badge {
    background: rgba(78, 205, 196, 0.15);
    color: #4ECDC4;
}

.option-badge.disabled-badge {
    background: rgba(108, 117, 125, 0.15);
    color: #6c757d;
}

.disabled-option {
    opacity: 0.5;
    cursor: not-allowed !important;
    pointer-events: none;
}

.disabled-option .option-icon,
.disabled-option .option-content .option-title,
.disabled-option .option-content .option-subtitle {
    filter: grayscale(50%);
}

/* ========================================
   Toast Modal (提示对话框)
   ======================================== */
.toast-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toast-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
}

.toast-modal-content {
    position: relative;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toast-modal-icon {
    color: var(--color-success);
    margin-bottom: var(--spacing-lg);
}

.toast-modal-icon.warning {
    color: var(--color-warning);
}

.toast-modal-icon.error {
    color: var(--color-danger);
}

.toast-modal-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.toast-modal-message {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.toast-modal-btn {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-accent);
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-bg-primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.toast-modal-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 217, 255, 0.4);
}

/* ========================================
   Confirm Modal (确认对话框)
   ======================================== */
.confirm-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.confirm-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
}

.confirm-modal-content {
    position: relative;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    max-width: 450px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.confirm-modal-icon {
    color: var(--color-warning);
    margin-bottom: var(--spacing-lg);
}

.confirm-modal-icon.danger {
    color: var(--color-danger);
}

.confirm-modal-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.confirm-modal-message {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.confirm-modal-actions {
    display: flex;
    gap: var(--spacing-md);
}

.confirm-modal-btn {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.confirm-modal-btn-cancel {
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-secondary);
}

.confirm-modal-btn-cancel:hover {
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
}

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

.confirm-modal-btn-confirm:hover {
    background: #ff4d7a;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 51, 102, 0.4);
}
}

.interface-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.interface-status {
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.interface-status.up {
    background: rgba(0, 255, 136, 0.1);
    color: var(--color-success);
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.interface-status.down {
    background: rgba(255, 51, 102, 0.1);
    color: var(--color-danger);
    border: 1px solid rgba(255, 51, 102, 0.3);
}

.interface-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.interface-detail-item {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
}

.interface-detail-label {
    color: var(--color-text-tertiary);
}

.interface-detail-value {
    color: var(--color-text-secondary);
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
    font-weight: 500;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    .header-content {
        padding: var(--spacing-md);
    }
    
    .main-content {
        padding: var(--spacing-md);
    }
    
    .overview-grid {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .network-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--color-border-secondary);
}