:root {
    --bg-primary: #f8f6f9;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f0edf3;
    --bg-card: #ffffff;
    --bg-card-hover: #faf8fc;
    --bg-modal: #ffffff;
    --bg-overlay: rgba(0, 0, 0, 0.4);
    --text-primary: #2d1b3d;
    --text-secondary: #6b5a7d;
    --text-tertiary: #9b8aad;
    --text-inverse: #ffffff;
    --border-color: #e8e0f0;
    --border-light: #f0eaf5;
    --accent: #e8668a;
    --accent-rgb: 232, 102, 138;
    --accent-light: #fce4ec;
    --accent-hover: #d44a72;
    --success: #4caf7d;
    --success-light: #e8f5e9;
    --warning: #f5a623;
    --warning-light: #fff8e1;
    --danger: #e74c5e;
    --danger-light: #fde8eb;
    --info: #5c9ced;
    --info-light: #e3f0ff;
    --shadow-sm: 0 1px 3px rgba(45, 27, 61, 0.06);
    --shadow-md: 0 4px 12px rgba(45, 27, 61, 0.08);
    --shadow-lg: 0 8px 30px rgba(45, 27, 61, 0.12);
    --shadow-card: 0 2px 8px rgba(45, 27, 61, 0.05);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
    --header-height: 64px;
    --sakura-1: #ffb7c5;
    --sakura-2: #ff8fa3;
    --sakura-3: #e8668a;
    --sakura-4: #c94064;
}

#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

#preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}

#preloader.hidden {
    display: none;
}

.preloader-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.preloader-gif {
    width: 180px;
    height: 180px;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.preloader-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.preloader-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    object-fit: contain;
    animation: logoBreath 2s ease-in-out infinite;
}

@keyframes logoBreath {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

.preloader-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.preloader-progress {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 220px;
}

.progress-bar {
    flex: 1;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--sakura-1), var(--sakura-3));
    border-radius: 2px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    min-width: 32px;
    text-align: right;
}

.preloader-status {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    text-align: center;
    min-height: 1.2em;
}

.preloader-status.error {
    color: var(--danger);
}

[data-theme="dark"] #preloader {
    background: var(--bg-primary);
}

@media (max-width: 480px) {
    .preloader-gif {
        width: 120px;
        height: 120px;
    }

    .preloader-logo {
        width: 32px;
        height: 32px;
    }

    .preloader-title {
        font-size: 1.2rem;
    }

    .preloader-progress {
        width: 180px;
    }
}

[data-theme="dark"] {
    --bg-primary: #0f0a15;
    --bg-secondary: #1a1225;
    --bg-tertiary: #241a32;
    --bg-card: #1e1530;
    --bg-card-hover: #261c3a;
    --bg-modal: #1e1530;
    --bg-overlay: rgba(0, 0, 0, 0.6);
    --text-primary: #e8dff0;
    --text-secondary: #a899b8;
    --text-tertiary: #7a6b8a;
    --text-inverse: #0f0a15;
    --border-color: #2d2040;
    --border-light: #241a32;
    --accent: #ff8fa3;
    --accent-light: #3d1a2a;
    --accent-hover: #ffb7c5;
    --success: #5ec492;
    --success-light: #1a2e22;
    --warning: #f5b84a;
    --warning-light: #2e2818;
    --danger: #ff6b7a;
    --danger-light: #2e1a1e;
    --info: #7ab3f7;
    --info-light: #1a2230;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.2);
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    transition: background var(--transition), color var(--transition);
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(232, 102, 138, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(92, 156, 237, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

[data-theme="dark"] body::before {
    background:
        radial-gradient(ellipse at 20% 20%, rgba(232, 102, 138, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(92, 156, 237, 0.04) 0%, transparent 50%);
}

#app {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 16px;
    transition: background var(--transition), border-color var(--transition);
    contain: layout style;
}

[data-theme="dark"] .header {
    background: rgba(26, 18, 37, 0.85);
}

.header-left {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.logo-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    object-fit: contain;
    flex-shrink: 0;
    transition: transform var(--transition);
}

.logo:hover .logo-icon {
    transform: rotate(-10deg) scale(1.1);
}

.site-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    transition: color var(--transition);
}

.logo:hover .site-name {
    color: var(--accent);
}

.header-center {
    flex: 1;
    display: flex;
    justify-content: center;
    overflow-x: auto;
    scrollbar-width: none;
}

.header-center::-webkit-scrollbar {
    display: none;
}

.group-filter {
    display: flex;
    gap: 4px;
    padding: 4px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-left: auto;
}

.filter-btn {
    padding: 6px 16px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: color var(--transition), background var(--transition), transform var(--transition-fast);
    white-space: nowrap;
    font-family: var(--font-sans);
    will-change: transform;
}

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

.filter-btn:active {
    transform: scale(0.95);
}

.filter-btn.active {
    background: var(--accent);
    color: var(--text-inverse);
    box-shadow: var(--shadow-sm);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.header-right-end {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
    flex: 1;
    max-width: 280px;
    min-width: 120px;
}

.search-icon {
    position: absolute;
    left: 10px;
    width: 16px;
    height: 16px;
    color: var(--text-tertiary);
    pointer-events: none;
    z-index: 1;
}

.search-box input {
    padding: 7px 12px 7px 34px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 0.85rem;
    width: 100%;
    transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
    font-family: var(--font-sans);
    outline: none;
}

.search-box input:focus {
    border-color: var(--accent);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 3px rgba(232, 102, 138, 0.15);
}

.search-box input::placeholder {
    color: var(--text-tertiary);
}

.view-toggle {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 4px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.view-btn,
.theme-toggle,
.lang-toggle,
.login-btn {
    padding: 6px;
    border: none;
    background: transparent;
    color: var(--text-tertiary);
    border-radius: 6px;
    cursor: pointer;
    transition: color var(--transition), background var(--transition), transform var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    will-change: transform;
    -webkit-user-select: none;
    user-select: none;
    touch-action: manipulation;
}

.view-btn svg,
.theme-toggle svg,
.lang-toggle svg,
.login-btn svg {
    width: 18px;
    height: 18px;
}

.view-btn:hover,
.theme-toggle:hover,
.lang-toggle:hover,
.login-btn:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.view-btn:active,
.theme-toggle:active,
.lang-toggle:active,
.login-btn:active {
    transform: scale(0.9);
}

.view-btn.active {
    background: var(--accent);
    color: var(--text-inverse);
}

.login-btn {
    text-decoration: none;
}

.theme-toggle .moon-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    display: block;
}

.main-content {
    flex: 1;
    padding: 24px;
    max-width: 1440px;
    margin: 0 auto;
    width: 100%;
}

.welcome-section {
    position: relative;
    margin-bottom: 24px;
    margin-top: 60px;
    padding: 28px 32px;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-tertiary) 50%, var(--bg-card) 100%);
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    overflow: visible;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.welcome-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.deco-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.deco-1 {
    width: 200px;
    height: 200px;
    background: var(--accent);
    top: -80px;
    right: -50px;
    animation: float 6s ease-in-out infinite;
}

.deco-2 {
    width: 150px;
    height: 150px;
    background: var(--info);
    bottom: -60px;
    left: -40px;
    animation: float 8s ease-in-out infinite reverse;
}

.deco-3 {
    width: 100px;
    height: 100px;
    background: var(--success);
    top: 50%;
    right: 20%;
    animation: float 7s ease-in-out infinite 1s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-20px) scale(1.05); }
}

.sakura-petal {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--sakura-1);
    border-radius: 50% 0 50% 50%;
    opacity: 0.4;
    animation: sakuraFall 10s linear infinite;
}

.sakura-petal:nth-child(4) { left: 10%; animation-delay: 0s; animation-duration: 12s; }
.sakura-petal:nth-child(5) { left: 30%; animation-delay: 2s; animation-duration: 10s; }
.sakura-petal:nth-child(6) { left: 50%; animation-delay: 4s; animation-duration: 14s; }
.sakura-petal:nth-child(7) { left: 70%; animation-delay: 1s; animation-duration: 11s; }
.sakura-petal:nth-child(8) { left: 90%; animation-delay: 3s; animation-duration: 13s; }

@keyframes sakuraFall {
    0% {
        transform: translateY(-20px) rotate(0deg) scale(0.8);
        opacity: 0;
    }
    10% { opacity: 0.5; }
    90% { opacity: 0.3; }
    100% {
        transform: translateY(120px) rotate(360deg) scale(0.6);
        opacity: 0;
    }
}

.welcome-content {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.welcome-greeting {
    display: flex;
    align-items: center;
    gap: 16px;
    padding-left: 100px;
}

.greeting-icon {
    width: 180px;
    height: 180px;
    object-fit: contain;
    animation: bounce 2s ease-in-out infinite;
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.15));
    position: absolute;
    top: -80px;
    left: -60px;
    z-index: 10;
    transform-origin: bottom center;
    will-change: transform;
}

@media (min-width: 1025px) and (max-width: 1440px) {
    .greeting-icon {
        width: 150px;
        height: 150px;
        top: -70px;
        left: -50px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .greeting-icon {
        width: 120px;
        height: 120px;
        top: -55px;
        left: -40px;
    }
}

@keyframes wave {
    0%, 100% { transform: rotate(0deg); }
    10% { transform: rotate(14deg); }
    20% { transform: rotate(-8deg); }
    30% { transform: rotate(14deg); }
    40% { transform: rotate(-4deg); }
    50% { transform: rotate(10deg); }
    60%, 100% { transform: rotate(0deg); }
}

.greeting-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.greeting-text {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.greeting-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.welcome-time {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
}

.time-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.time-value {
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-mono);
    background: linear-gradient(135deg, var(--accent) 0%, var(--sakura-2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.05em;
    text-shadow: 0 2px 10px rgba(232, 102, 138, 0.2);
}

.stats-bar {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    transition: all var(--transition);
}

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

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.stat-item.online .stat-value {
    color: var(--success);
}

.stat-item.offline .stat-value {
    color: var(--danger);
}

.nodes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.node-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    cursor: pointer;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), 
                box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1), 
                border-color 0.25s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04), 
                0 1px 2px rgba(0, 0, 0, 0.06);
    position: relative;
    overflow: hidden;
}

.node-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--sakura-1), var(--sakura-2), var(--sakura-3));
    opacity: 0;
    transition: opacity 0.25s ease;
}

.node-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 40%, rgba(255, 255, 255, 0.03) 100%);
    pointer-events: none;
}

.node-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08), 
                0 4px 8px rgba(0, 0, 0, 0.04);
    border-color: var(--accent);
}

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

.node-card:active {
    transform: translateY(-2px);
    transition: transform 0.1s ease;
}

.node-card.offline {
    opacity: 0.65;
    filter: saturate(0.8);
}

.node-card.offline:hover {
    opacity: 0.85;
}

.node-card.offline::before {
    background: linear-gradient(90deg, var(--danger), #ff8a95);
}

.node-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-light);
}

.node-card-flag {
    width: 32px;
    height: 24px;
    flex-shrink: 0;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease;
}

.node-card:hover .node-card-flag {
    transform: scale(1.05);
}

.node-card-flag img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.node-card-flag-placeholder {
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    font-size: 0.75rem;
    font-weight: 600;
}

.node-card-info {
    flex: 1;
    min-width: 0;
}

.node-card-name {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
    flex-wrap: wrap;
    line-height: 1.4;
}

.node-name-text {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    word-break: break-all;
}

.node-card-os {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500;
}

.node-card-subtitle {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
    flex-wrap: nowrap;
    overflow: hidden;
}

.node-api-tag {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--info);
    background: var(--info-light);
    border-radius: 4px;
    white-space: nowrap;
    flex-shrink: 0;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.node-card:hover .node-api-tag {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.node-api-tag.tag-green,
.node-api-tag.tag-success {
    color: var(--success);
    background: var(--success-light);
}

.node-api-tag.tag-red,
.node-api-tag.tag-danger {
    color: var(--danger);
    background: var(--danger-light);
}

.node-api-tag.tag-blue,
.node-api-tag.tag-info {
    color: var(--info);
    background: var(--info-light);
}

.node-api-tag.tag-yellow,
.node-api-tag.tag-warning,
.node-api-tag.tag-orange {
    color: var(--warning);
    background: var(--warning-light);
}

.node-api-tag.tag-purple,
.node-api-tag.tag-pink {
    color: var(--accent);
    background: var(--accent-light);
}

.node-api-tag.tag-cyan {
    color: #0891b2;
    background: #cffafe;
}

.node-api-tag.tag-gray {
    color: var(--text-secondary);
    background: var(--bg-tertiary);
}

.node-region {
    font-size: 1.1rem;
}

.node-status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--success);
    flex-shrink: 0;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 8px rgba(76, 175, 125, 0.4);
}

.node-status-dot.offline {
    background: var(--danger);
    animation: none;
    box-shadow: 0 0 8px rgba(232, 102, 138, 0.4);
}

@keyframes pulse {
    0%, 100% { 
        opacity: 1; 
        transform: scale(1);
    }
    50% { 
        opacity: 0.6; 
        transform: scale(0.9);
    }
}

.node-card-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.metric {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.metric-label {
    font-size: 0.72rem;
    color: var(--text-tertiary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.metric-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.06);
}

.metric-bar-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1), background 0.3s ease;
    position: relative;
}

.metric-bar-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to bottom, rgba(255,255,255,0.2), transparent);
    border-radius: 4px 4px 0 0;
}

.metric-bar-fill.level-normal {
    background: linear-gradient(90deg, var(--success), #6dd5a0);
}

.metric-bar-fill.level-warning {
    background: linear-gradient(90deg, var(--warning), #f7c948);
}

.metric-bar-fill.level-danger {
    background: linear-gradient(90deg, var(--danger), #ff8a95);
}

.metric-value {
    font-size: 0.88rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.metric-value.level-normal { color: var(--success); }
.metric-value.level-warning { color: var(--warning); }
.metric-value.level-danger { color: var(--danger); }

.metric-full {
    grid-column: 1 / -1;
}

.node-card-footer {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border-light);
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
    align-items: center;
    font-size: 0.72rem;
    color: var(--text-tertiary);
}

.node-uptime {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 500;
}

.node-expiry {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 6px;
    transition: transform 0.2s ease;
}

.node-card:hover .node-expiry {
    transform: translateY(-1px);
}

.node-expiry.level-normal {
    color: var(--text-secondary);
    background: var(--bg-tertiary);
}

.node-expiry.level-warning {
    color: var(--warning);
    background: var(--warning-light);
}

.node-expiry.level-danger {
    color: var(--danger);
    background: var(--danger-light);
}

.node-expiry.level-expired {
    color: #fff;
    background: var(--danger);
}

.node-network {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
    font-weight: 500;
}

.node-ping {
    font-family: var(--font-mono);
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 0.72rem;
    transition: transform 0.2s ease;
}

.node-card:hover .node-ping {
    transform: translateY(-1px);
}

.node-ping.level-normal {
    color: var(--success);
    background: var(--success-light);
}

.node-ping.level-warning {
    color: var(--warning);
    background: var(--warning-light);
}

.node-ping.level-danger {
    color: var(--danger);
    background: var(--danger-light);
}

.network-dir {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
}

.network-dir .arrow-up {
    color: var(--success);
}

.network-dir .arrow-down {
    color: var(--info);
}

.nodes-table-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

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

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

.nodes-table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
}

.nodes-table td {
    padding: 12px 16px;
    font-size: 0.85rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-light);
}

.nodes-table tbody tr {
    cursor: pointer;
    transition: background var(--transition);
}

.nodes-table tbody tr:hover {
    background: var(--bg-card-hover);
}

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

.table-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.table-status .node-status-dot {
    width: 6px;
    height: 6px;
}

.table-name {
    font-weight: 600;
}

.table-region {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.table-flag {
    width: 24px;
    height: 16px;
    border-radius: 2px;
    object-fit: cover;
    vertical-align: middle;
}

.table-flag-placeholder {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 16px;
    border-radius: 2px;
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    font-size: 0.65rem;
    font-weight: 600;
}

.table-metric {
    display: flex;
    align-items: center;
    gap: 8px;
}

.table-metric-bar {
    width: 60px;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
}

.table-metric-bar-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.6s ease;
}

.table-metric-bar-fill.level-normal { background: var(--success); }
.table-metric-bar-fill.level-warning { background: var(--warning); }
.table-metric-bar-fill.level-danger { background: var(--danger); }

.table-metric-value {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 600;
}

.table-metric-value.level-normal { color: var(--success); }
.table-metric-value.level-warning { color: var(--warning); }
.table-metric-value.level-danger { color: var(--danger); }

.table-network {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    white-space: nowrap;
}

.table-network .arrow-up,
.table-network .arrow-down {
    margin: 0 2px;
}

.table-ping {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 600;
}

.table-ping.level-normal { color: var(--success); }
.table-ping.level-warning { color: var(--warning); }
.table-ping.level-danger { color: var(--danger); }

.table-uptime {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-overlay);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 200;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    -webkit-overflow-scrolling: touch;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-modal);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    overflow-x: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    will-change: transform, opacity;
    transform: scale(0.95) translateY(20px);
    opacity: 0;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.25s ease;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

.modal.dragging {
    cursor: grabbing;
    user-select: none;
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.modal-scroll-indicator {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(to right, var(--accent), var(--accent-light, rgba(232, 102, 138, 0.5)));
    transform-origin: left;
    transform: scaleX(0);
    transition: transform 0.1s ease;
    z-index: 20;
    pointer-events: none;
}

.modal-scroll-indicator.visible {
    transform: scaleX(var(--scroll-progress, 0));
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    background: var(--bg-modal);
    z-index: 10;
}

.modal-header h2 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    margin-right: 16px;
}

.modal-close {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    will-change: transform;
}

.modal-close:hover {
    background: var(--danger-light);
    color: var(--danger);
    transform: rotate(90deg);
}

.modal-close:active {
    transform: rotate(90deg) scale(0.95);
}

.modal-tabs {
    display: flex;
    gap: 6px;
    padding: 12px 20px 0;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    position: relative;
}

.modal-tabs::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color) 20%, var(--border-color) 80%, transparent);
}

.modal-tabs::-webkit-scrollbar {
    display: none;
}

.modal-tab {
    padding: 10px 18px;
    border: none;
    background: transparent;
    color: var(--text-tertiary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 10px 10px 0 0;
    font-family: var(--font-sans);
    margin-bottom: -1px;
    white-space: nowrap;
    position: relative;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.01em;
}

.modal-tab::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 10px 10px 0 0;
    background: var(--bg-secondary);
    opacity: 0;
    transition: opacity 0.25s ease;
    z-index: -1;
}

.modal-tab::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-hover, var(--accent)));
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
    border-radius: 3px 3px 0 0;
    box-shadow: 0 -2px 8px rgba(var(--accent-rgb, 139, 92, 246), 0.4);
}

.modal-tab:hover {
    color: var(--text-primary);
    transform: translateY(-1px);
}

.modal-tab:hover::before {
    opacity: 1;
}

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

.modal-tab.active {
    color: var(--accent);
    background: var(--bg-secondary);
    font-weight: 600;
    text-shadow: 0 0 20px rgba(var(--accent-rgb, 139, 92, 246), 0.3);
}

.modal-tab.active::before {
    opacity: 1;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.08);
}

.modal-tab.active::after,
.modal-tab:hover::after {
    width: calc(100% - 16px);
}

.modal-body {
    padding: 24px;
    position: relative;
    -webkit-overflow-scrolling: touch;
}

@media (hover: none) and (pointer: coarse) {
    .modal-body {
        touch-action: pan-y;
    }
}

.modal-page {
    display: none;
    opacity: 0;
    transform: translateX(20px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    will-change: opacity, transform;
}

.modal-page.active {
    display: block;
    opacity: 1;
    transform: translateX(0);
}

.modal-page.slide-out {
    opacity: 0;
    transform: translateX(-20px);
}

.modal-info {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}

.modal-info-item {
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.modal-info-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.modal-info-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.modal-info-value {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    word-break: break-all;
    line-height: 1.4;
}

.modal-charts {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.chart-section {
    position: relative;
}

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
    gap: 12px;
}

.chart-header h3,
.chart-section > h3 {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    padding-left: 12px;
}

.chart-header h3::before,
.chart-section > h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 16px;
    background: linear-gradient(180deg, var(--accent), var(--accent-hover));
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(var(--accent-rgb), 0.4);
}

.chart-header h3::after,
.chart-section > h3::after {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0.6;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% {
        opacity: 0.4;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.2);
    }
}

.chart-section > h3 {
    margin-bottom: 10px;
}

.chart-legend {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.78rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.legend-up .legend-dot {
    background: #4caf7d;
}

.legend-down .legend-dot {
    background: #5c9ced;
}

.chart-section canvas {
    width: 100%;
    height: 160px;
    border-radius: var(--radius-sm);
    background: var(--bg-tertiary);
    cursor: crosshair;
    display: block;
}

.chart-section canvas.chart-loading {
    opacity: 0.5;
    animation: pulse 1.5s ease-in-out infinite;
}

.chart-tooltip {
    position: fixed;
    padding: 10px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    font-size: 0.8rem;
    font-family: var(--font-mono);
    pointer-events: none;
    z-index: 1000;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.15s ease, transform 0.15s ease;
    max-width: 280px;
}

.chart-tooltip.visible {
    opacity: 1;
    transform: translateY(0);
}

.chart-tooltip-time {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.chart-tooltip-value {
    font-weight: 600;
    color: var(--text-primary);
}

.latency-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.latency-stat {
    padding: 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.latency-stat:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
}

.latency-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    margin-bottom: 4px;
    transition: color 0.2s ease;
}

.latency-stat-value.level-normal { color: var(--success); }
.latency-stat-value.level-warning { color: var(--warning); }
.latency-stat-value.level-danger { color: var(--danger); }

.latency-stat-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.latency-tasks {
    margin-bottom: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 10px;
}

.latency-tasks-title {
    grid-column: 1 / -1;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    padding-left: 12px;
}

.latency-tasks-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 16px;
    background: linear-gradient(180deg, var(--accent), var(--accent-hover));
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(var(--accent-rgb), 0.4);
}

.latency-tasks-title::after {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0.6;
    animation: pulse-dot 2s ease-in-out infinite;
}

.latency-task-card {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: 10px 12px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    gap: 6px;
    overflow: hidden;
}

.latency-task-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(var(--accent-rgb), 0.03) 50%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.latency-task-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(var(--accent-rgb), 0.1);
    border-left-width: 5px;
}

.latency-task-card:hover::before {
    opacity: 1;
}

.latency-task-card:active {
    transform: translateY(0) scale(0.98);
}

.latency-task-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.82rem;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
}

.latency-task-name::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 4px rgba(var(--accent-rgb), 0.5);
    animation: blink-dot 1.5s ease-in-out infinite;
    flex-shrink: 0;
    margin-right: 6px;
    margin-left: 2px;
}

@keyframes blink-dot {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.4;
    }
}

.latency-task-info {
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    justify-content: flex-end;
    flex-shrink: 0;
}

.latency-task-ping {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.78rem;
    padding: 2px 6px;
    border-radius: 4px;
    transition: all 0.2s ease;
    position: relative;
}

.latency-task-ping.level-excellent {
    color: var(--success);
    background: rgba(76, 175, 125, 0.1);
}

.latency-task-ping.level-normal {
    color: var(--info);
    background: rgba(92, 156, 237, 0.1);
}

.latency-task-ping.level-warning {
    color: var(--warning);
    background: rgba(245, 166, 35, 0.1);
}

.latency-task-ping.level-danger {
    color: var(--danger);
    background: rgba(231, 76, 94, 0.1);
}

.latency-task-loss {
    font-size: 0.68rem;
    color: var(--text-tertiary);
    padding: 2px 5px;
    background: var(--bg-primary);
    border-radius: 4px;
    font-weight: 500;
    white-space: nowrap;
}

.latency-chart-container {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 16px;
}

.latency-chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 8px;
}

.latency-chart-header h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    padding-left: 12px;
}

.latency-chart-header h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 16px;
    background: linear-gradient(180deg, var(--accent), var(--accent-hover));
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(var(--accent-rgb), 0.4);
}

.latency-chart-header h3::after {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0.6;
    animation: pulse-dot 2s ease-in-out infinite;
}

.latency-legend {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    max-width: 100%;
}

.latency-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    padding: 2px 6px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    transition: background 0.2s ease;
}

.latency-legend-item:hover {
    background: var(--bg-tertiary);
}

.latency-legend-color {
    width: 14px;
    height: 3px;
    border-radius: 2px;
    flex-shrink: 0;
}

#latencyChart {
    width: 100%;
    height: 250px;
    border-radius: var(--radius-sm);
}

.footer {
    text-align: center;
    padding: 20px 24px;
    font-size: 0.82rem;
    color: var(--text-tertiary);
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 24px;
    gap: 16px;
}

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

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

.loading-text {
    font-size: 0.9rem;
    color: var(--text-tertiary);
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 24px;
    gap: 12px;
    color: var(--text-tertiary);
}

.empty-state svg {
    width: 48px;
    height: 48px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 0.95rem;
}

@media (max-width: 768px) {
    .header {
        height: auto;
        padding: 10px 12px;
        flex-wrap: wrap;
        gap: 8px;
    }

    .header-center {
        display: none;
    }

    .header-right {
        gap: 4px;
        flex-wrap: wrap;
        flex: 1;
    }

    .header-right > *:not(.search-box):not(.header-right-end) {
        order: 0;
    }

    .header-right-end {
        order: 1;
        margin-left: auto;
        flex-shrink: 0;
    }

    .search-box {
        order: 10;
        max-width: none;
        min-width: 0;
        width: 100%;
        margin-top: 4px;
    }

    .search-box input {
        width: 100%;
    }

    .search-box input:focus {
        width: 100%;
    }

    .site-name {
        font-size: 1rem;
    }

    .logo-icon {
        width: 28px;
        height: 28px;
    }

    .main-content {
        padding: 12px;
    }

    .welcome-section {
        padding: 16px 16px 16px 16px;
        margin-top: 40px;
    }

    .welcome-content {
        flex-direction: row;
        gap: 0;
        text-align: left;
    }

    .welcome-greeting {
        padding-left: 70px;
        flex-direction: column;
        align-items: flex-start;
        flex: 1;
    }

    .greeting-icon {
        width: 80px;
        height: 80px;
        top: -40px;
        left: 0;
        transform: none;
        filter: drop-shadow(0 2px 8px rgba(0,0,0,0.1));
        animation: bounce 2s ease-in-out infinite;
    }

    .greeting-text {
        font-size: 1.2rem;
    }

    .greeting-subtitle {
        font-size: 0.72rem;
    }

    .welcome-time {
        align-items: flex-end;
        flex-shrink: 0;
    }

    .time-value {
        font-size: 1.2rem;
    }

    .time-label {
        font-size: 0.72rem;
    }

    .sakura-petal {
        display: none;
    }

    .deco-circle {
        display: none;
    }

    .stats-bar {
        gap: 8px;
        flex-wrap: wrap;
    }

    .stat-item {
        padding: 8px 12px;
        flex: 1;
        min-width: 80px;
    }

    .stat-label {
        font-size: 0.72rem;
    }

    .stat-value {
        font-size: 1rem;
    }

    .stats-bar .group-filter {
        margin-left: 0;
        width: 100%;
        justify-content: flex-start;
        margin-top: 8px;
    }

    .filter-btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }

    .nodes-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .node-card {
        padding: 16px;
        border-radius: 14px;
    }

    .node-card:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
    }

    .node-card::before {
        height: 2px;
    }

    .node-card-header {
        gap: 12px;
        margin-bottom: 14px;
        padding-bottom: 10px;
    }

    .node-card-flag {
        width: 28px;
        height: 20px;
    }

    .node-card-name {
        font-size: 0.95rem;
    }

    .node-name-text {
        -webkit-line-clamp: 2;
    }

    .node-status-dot {
        width: 8px;
        height: 8px;
    }

    .node-card-metrics {
        gap: 12px;
    }

    .metric-label {
        font-size: 0.7rem;
    }

    .metric-value {
        font-size: 0.82rem;
    }

    .metric-bar {
        height: 6px;
    }

    .node-card-footer {
        margin-top: 14px;
        padding-top: 10px;
        gap: 6px 10px;
        font-size: 0.7rem;
    }

    .node-expiry {
        font-size: 0.65rem;
        padding: 2px 6px;
    }

    .node-ping {
        font-size: 0.68rem;
        padding: 2px 6px;
    }

    .network-dir {
        font-size: 0.65rem;
    }

    .modal-overlay {
        padding: 0;
        align-items: flex-end;
        padding-bottom: env(safe-area-inset-bottom);
    }

    .modal {
        border-radius: 20px 20px 0 0;
        max-height: 92vh;
        max-width: 100%;
        width: 100%;
    }

    .modal-scroll-indicator {
        height: 3px;
    }

    .modal-drag-handle {
        display: block;
        width: 36px;
        height: 5px;
        background: var(--border-color);
        border-radius: 3px;
        margin: 10px auto 0;
    }

    .modal-header {
        padding: 14px 16px;
        gap: 12px;
    }

    .modal-header h2 {
        font-size: 1.1rem;
        line-height: 1.3;
    }

    .modal-close {
        width: 44px;
        height: 44px;
        font-size: 1.4rem;
        border-radius: var(--radius-md);
    }

    .modal-tabs {
        padding: 10px 12px 0;
        gap: 4px;
    }

    .modal-tab {
        padding: 12px 16px;
        font-size: 0.9rem;
        min-height: 48px;
        border-radius: 12px 12px 0 0;
    }

    .modal-tab::after {
        height: 3px;
        border-radius: 3px 3px 0 0;
    }

    .modal-body {
        padding: 16px;
        padding-bottom: calc(16px + env(safe-area-inset-bottom));
    }

    .modal-info {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .modal-info-item {
        padding: 12px;
        border-radius: var(--radius-md);
    }

    .modal-info-label {
        font-size: 0.72rem;
        margin-bottom: 6px;
    }

    .modal-info-value {
        font-size: 0.88rem;
        line-height: 1.4;
    }

    .modal-charts {
        gap: 16px;
    }

    .chart-header {
        flex-wrap: wrap;
    }

    .chart-header h3,
    .chart-section > h3 {
        font-size: 0.88rem;
        margin-bottom: 0;
    }

    .chart-header h3::before,
    .chart-section > h3::before,
    .latency-chart-header h3::before {
        height: 14px;
    }

    .chart-header h3::after,
    .chart-section > h3::after,
    .latency-chart-header h3::after {
        width: 5px;
        height: 5px;
    }

    .chart-legend {
        font-size: 0.72rem;
        gap: 12px;
    }

    .chart-section canvas {
        width: 100% !important;
        height: 140px !important;
        border-radius: var(--radius-md);
    }

    .latency-summary {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
        margin-bottom: 16px;
    }

    .latency-stat {
        padding: 12px 8px;
        border-radius: var(--radius-md);
    }

    .latency-stat-value {
        font-size: 1.2rem;
        margin-bottom: 4px;
    }

    .latency-stat-label {
        font-size: 0.7rem;
    }

    .latency-tasks {
        margin-bottom: 16px;
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 8px;
    }

    .latency-tasks-title {
        font-size: 0.88rem;
        margin-bottom: 4px;
    }

    .latency-tasks-title::before {
        height: 14px;
    }

    .latency-tasks-title::after {
        width: 5px;
        height: 5px;
    }

    .latency-task-card {
        padding: 8px 10px;
        border-radius: var(--radius-md);
        border-left-width: 4px;
        gap: 4px;
    }

    .latency-task-name {
        font-size: 0.8rem;
        gap: 5px;
    }

    .latency-task-name::before {
        width: 5px;
        height: 5px;
    }

    .latency-task-info {
        gap: 5px;
        white-space: nowrap;
    }

    .latency-task-ping {
        font-size: 0.75rem;
        padding: 2px 5px;
    }

    .latency-task-loss {
        font-size: 0.65rem;
        padding: 1px 4px;
    }

    .latency-chart-container {
        padding: 14px;
        border-radius: var(--radius-md);
    }

    .latency-chart-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        margin-bottom: 12px;
    }

    .latency-chart-header h3 {
        font-size: 0.88rem;
    }

    .latency-chart-header h3::before {
        height: 14px;
    }

    .latency-chart-header h3::after {
        width: 5px;
        height: 5px;
    }

    .latency-legend {
        display: flex;
        flex-wrap: wrap;
        gap: 6px;
        width: 100%;
    }

    .latency-legend-item {
        font-size: 0.7rem;
        padding: 4px 8px;
        border-radius: var(--radius-sm);
    }

    .latency-legend-color {
        width: 12px;
        height: 3px;
    }

    .latency-chart-container canvas {
        width: 100% !important;
        height: 200px !important;
    }

    .nodes-table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .nodes-table {
        min-width: 700px;
    }

    .nodes-table th,
    .nodes-table td {
        padding: 8px 10px;
        font-size: 0.75rem;
    }

    .table-metric-bar {
        width: 40px;
    }

    .view-toggle, .lang-toggle {
        display: none;
    }

    .footer {
        padding: 16px 12px;
        font-size: 0.72rem;
        flex-direction: column;
        gap: 4px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 8px 10px;
    }

    .header-right {
        flex: 1;
    }

    .header-right-end {
        margin-left: auto;
    }

    .search-box {
        display: none;
    }

    .welcome-section {
        padding: 12px 12px 12px 12px;
        margin-top: 35px;
    }

    .greeting-icon {
        width: 100px;
        height: 100px;
        top: -50px;
        left: -20px;
        transform: none;
        filter: drop-shadow(0 2px 6px rgba(0,0,0,0.08));
        animation: bounce 2s ease-in-out infinite;
    }

    .welcome-greeting {
        padding-left: 70px;
    }

    .greeting-text {
        font-size: 1.05rem;
    }

    .greeting-subtitle {
        font-size: 0.68rem;
    }

    .time-value {
        font-size: 1.05rem;
    }

    .time-label {
        font-size: 0.68rem;
    }

    .stats-bar {
        gap: 6px;
    }

    .stat-item {
        padding: 6px 10px;
        min-width: 70px;
    }

    .stat-label {
        font-size: 0.68rem;
    }

    .stat-value {
        font-size: 0.9rem;
    }

    .node-card {
        padding: 12px;
    }

    .node-card-metrics {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }

    .node-card-name {
        font-size: 0.85rem;
    }

    .node-name-text {
        -webkit-line-clamp: 2;
    }

    .node-api-tag {
        font-size: 0.6rem;
        padding: 1px 4px;
    }

    .metric-label {
        font-size: 0.65rem;
    }

    .metric-value {
        font-size: 0.75rem;
    }

    .node-card-footer {
        font-size: 0.65rem;
    }

    .modal-overlay {
        padding: 0;
    }

    .modal {
        border-radius: 16px 16px 0 0;
        max-height: 95vh;
    }

    .modal-header {
        padding: 12px 14px;
    }

    .modal-header h2 {
        font-size: 1rem;
    }

    .modal-close {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .modal-tabs {
        padding: 8px 10px 0;
        gap: 2px;
    }

    .modal-tab {
        padding: 10px 12px;
        font-size: 0.85rem;
        min-height: 44px;
        border-radius: 10px 10px 0 0;
    }

    .modal-tab::after {
        height: 2px;
    }

    .modal-body {
        padding: 14px;
        padding-bottom: calc(14px + env(safe-area-inset-bottom));
    }

    .modal-info {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .modal-info-item {
        padding: 10px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 4px;
    }

    .modal-info-label {
        font-size: 0.7rem;
        margin-bottom: 0;
    }

    .modal-info-value {
        font-size: 0.82rem;
        text-align: right;
    }

    .chart-header h3,
    .chart-section > h3,
    .latency-chart-header h3 {
        font-size: 0.82rem;
    }

    .latency-chart-header h3::before {
        height: 12px;
        width: 2px;
    }

    .latency-chart-header h3::after {
        width: 4px;
        height: 4px;
    }

    .chart-header h3::before,
    .chart-section > h3::before,
    .latency-chart-header h3::before {
        height: 12px;
        width: 2px;
    }

    .chart-header h3::after,
    .chart-section > h3::after,
    .latency-chart-header h3::after {
        width: 4px;
        height: 4px;
    }

    .chart-legend {
        font-size: 0.68rem;
        gap: 8px;
    }

    .chart-section canvas {
        height: 120px !important;
    }

    .latency-summary {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        margin-bottom: 14px;
    }

    .latency-stat {
        padding: 10px 6px;
    }

    .latency-stat-value {
        font-size: 1.1rem;
    }

    .latency-stat-label {
        font-size: 0.65rem;
    }

    .latency-tasks {
        margin-bottom: 14px;
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .latency-tasks-title {
        font-size: 0.82rem;
        margin-bottom: 4px;
    }

    .latency-tasks-title::before {
        height: 12px;
        width: 2px;
    }

    .latency-tasks-title::after {
        width: 4px;
        height: 4px;
    }

    .latency-task-card {
        padding: 8px 10px;
        grid-template-columns: 1fr;
        gap: 6px;
    }

    .latency-task-name {
        font-size: 0.75rem;
        white-space: normal;
        overflow-wrap: break-word;
        overflow: visible;
        text-overflow: unset;
        gap: 4px;
        padding-left: 10px;
    }

    .latency-task-name::before {
        width: 4px;
        height: 4px;
        left: 2px;
        position: absolute;
    }

    .latency-task-info {
        justify-content: space-between;
        gap: 4px;
        padding-left: 10px;
    }

    .latency-task-ping {
        font-size: 0.72rem;
        padding: 1px 4px;
    }

    .latency-task-loss {
        font-size: 0.62rem;
        padding: 1px 3px;
    }

    .latency-chart-container {
        padding: 12px;
    }

    .latency-chart-header h3 {
        font-size: 0.82rem;
    }

    .latency-legend {
        gap: 4px;
    }

    .latency-legend-item {
        font-size: 0.65rem;
        padding: 3px 6px;
    }

    .latency-chart-container canvas {
        height: 180px !important;
    }

    .chart-section canvas {
        height: 120px !important;
    }

    .filter-btn {
        padding: 5px 10px;
        font-size: 0.75rem;
    }

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

@media (min-width: 769px) and (max-width: 1024px) {
    .nodes-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }

    .search-box {
        max-width: 200px;
        min-width: 100px;
    }
}

@media (orientation: landscape) and (max-height: 500px) {
    .welcome-section {
        margin-top: 0;
        padding: 12px 16px;
    }

    .greeting-icon {
        width: 65px;
        height: 65px;
        top: -32px;
        left: -15px;
        transform: none;
        filter: drop-shadow(0 2px 4px rgba(0,0,0,0.08));
    }

    .welcome-content {
        flex-direction: row;
    }

    .welcome-greeting {
        flex-direction: row;
        padding-left: 40px;
    }

    .modal {
        max-height: 98vh;
    }

    .modal-overlay {
        padding: 8px;
    }
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

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

::selection {
    background: var(--accent);
    color: var(--text-inverse);
}

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

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

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

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

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

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes bounceCenter {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.animate-fade-in {
    animation: fadeIn var(--transition-slow) ease forwards;
}

.animate-fade-in-up {
    animation: fadeInUp var(--transition-slow) ease forwards;
}

.animate-fade-in-down {
    animation: fadeInDown var(--transition-slow) ease forwards;
}

.animate-fade-in-scale {
    animation: fadeInScale var(--transition-slow) ease forwards;
}

.animate-slide-in-left {
    animation: slideInLeft var(--transition-slow) ease forwards;
}

.animate-slide-in-right {
    animation: slideInRight var(--transition-slow) ease forwards;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

.animate-shimmer {
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-card) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

.animate-spin {
    animation: spin 1s linear infinite;
}

.animate-bounce {
    animation: bounce 1s ease-in-out infinite;
}

.skeleton {
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-card) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

.skeleton-text {
    height: 1em;
    margin: 0.5em 0;
    border-radius: 4px;
}

.skeleton-title {
    height: 1.5em;
    width: 60%;
    margin-bottom: 0.5em;
    border-radius: 4px;
}

.skeleton-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.skeleton-card {
    height: 200px;
    border-radius: var(--radius-md);
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loading-dots {
    display: inline-flex;
    gap: 4px;
}

.loading-dots span {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: bounce 1.4s ease-in-out infinite;
}

.loading-dots span:nth-child(1) { animation-delay: 0s; }
.loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.loading-dots span:nth-child(3) { animation-delay: 0.4s; }

.node-card {
    transition: transform var(--transition), box-shadow var(--transition);
}

.node-card.animate-in {
    animation: fadeInUp 0.4s ease forwards;
    opacity: 0;
}

.node-card:nth-child(1).animate-in { animation-delay: 0.05s; }
.node-card:nth-child(2).animate-in { animation-delay: 0.1s; }
.node-card:nth-child(3).animate-in { animation-delay: 0.15s; }
.node-card:nth-child(4).animate-in { animation-delay: 0.2s; }
.node-card:nth-child(5).animate-in { animation-delay: 0.25s; }
.node-card:nth-child(6).animate-in { animation-delay: 0.3s; }
.node-card:nth-child(7).animate-in { animation-delay: 0.35s; }
.node-card:nth-child(8).animate-in { animation-delay: 0.4s; }
.node-card:nth-child(9).animate-in { animation-delay: 0.45s; }
.node-card:nth-child(10).animate-in { animation-delay: 0.5s; }

.stat-item {
    transition: transform var(--transition), box-shadow var(--transition);
}

.stat-item.animate-in {
    animation: fadeInScale 0.3s ease forwards;
    opacity: 0;
}

.stat-item:nth-child(1).animate-in { animation-delay: 0.1s; }
.stat-item:nth-child(2).animate-in { animation-delay: 0.15s; }
.stat-item:nth-child(3).animate-in { animation-delay: 0.2s; }
.stats-bar .group-filter.animate-in { 
    animation: fadeInScale 0.3s ease forwards;
    opacity: 0;
    animation-delay: 0.25s; 
}

.filter-btn {
    transition: all var(--transition);
}

.filter-btn:hover {
    transform: translateY(-2px);
}

.filter-btn:active {
    transform: translateY(0) scale(0.98);
}

.filter-btn.active {
    animation: fadeInScale 0.3s ease forwards;
}

@media (hover: hover) and (pointer: fine) {
    .modal-info-item:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    }

    .latency-stat:hover {
        transform: translateY(-3px);
        box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
    }

    .latency-task-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(var(--accent-rgb), 0.1);
    }
}

@media (hover: none) {
    .node-card:hover {
        transform: none;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04), 
                    0 1px 2px rgba(0, 0, 0, 0.06);
        border-color: var(--border-color);
    }

    .node-card:hover::before {
        opacity: 0;
    }

    .node-card:active {
        transform: scale(0.98);
        border-color: var(--accent);
    }

    .node-card:active::before {
        opacity: 1;
    }

    .node-card:hover .node-card-flag,
    .node-card:hover .node-api-tag,
    .node-card:hover .node-expiry,
    .node-card:hover .node-ping {
        transform: none;
    }

    .node-card:active .node-card-flag {
        transform: scale(1.02);
    }

    .modal-info-item,
    .latency-stat,
    .latency-task-card,
    .modal-close:hover {
        transition: none;
        transform: none;
    }

    .modal-info-item:active,
    .latency-stat:active,
    .latency-task-card:active {
        background: var(--bg-secondary);
        transform: scale(0.98);
    }

    .latency-task-card:active::before {
        opacity: 1;
    }

    .modal-close:active {
        background: var(--danger-light);
        color: var(--danger);
        transform: scale(0.95);
    }

    .modal-tab:active {
        background: var(--bg-secondary);
        transform: scale(0.98);
    }

    .modal-tab:active::before {
        opacity: 1;
    }

    .chart-tooltip {
        max-width: 200px;
        font-size: 0.75rem;
        padding: 8px 10px;
    }
}

@media (max-width: 768px) and (orientation: landscape) {
    .modal {
        max-height: 95vh;
        border-radius: var(--radius-md);
        margin: auto;
    }

    .modal-overlay {
        padding: 10px;
        align-items: center;
    }

    .modal-body {
        max-height: calc(95vh - 120px);
        overflow-y: auto;
    }

    .chart-section canvas {
        height: 100px !important;
    }

    .latency-chart-container canvas {
        height: 150px !important;
    }
}

@supports (padding: max(0px)) {
    .modal-body {
        padding-bottom: max(16px, env(safe-area-inset-bottom));
    }

    .modal-header {
        padding-top: max(14px, env(safe-area-inset-top));
    }

    @media (max-width: 480px) {
        .modal-body {
            padding-bottom: max(14px, env(safe-area-inset-bottom));
        }
    }
}

.status-dot,
.node-status-dot {
    transition: all var(--transition);
}

.status-dot.online,
.node-status-dot:not(.offline) {
    animation: pulse 2s ease-in-out infinite;
}

.node-card:hover .status-dot,
.node-card:hover .node-status-dot {
    transform: scale(1.2);
}

.metric-bar {
    transition: width var(--transition-slow) ease;
}

.metric-value {
    transition: all var(--transition);
}

.node-card:hover .metric-value {
    transform: translateX(4px);
}

.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn-ripple:active::after {
    width: 200px;
    height: 200px;
}

* {
    -webkit-tap-highlight-color: transparent;
}

input,
button,
select,
textarea {
    font-size: 16px;
}

.node-card,
.filter-btn,
.modal-tab,
.view-btn,
.theme-toggle,
.lang-toggle,
.login-btn {
    -webkit-user-select: none;
    user-select: none;
    touch-action: manipulation;
}

.node-card:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
}

.filter-btn:active {
    transform: scale(0.95);
}

.modal-body {
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

.modal.dragging .modal-body {
    pointer-events: none;
}

.modal-drag-handle {
    display: none;
    width: 40px;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    margin: 8px auto 0;
    cursor: grab;
}

@media (max-width: 768px) {
    .modal-drag-handle {
        display: block;
    }
}

@media (hover: none) {
    .node-card:hover {
        transform: none;
        box-shadow: var(--shadow-card);
    }

    .node-card::before {
        display: none;
    }

    .filter-btn:hover {
        transform: none;
    }

    .view-btn:hover,
    .theme-toggle:hover,
    .lang-toggle:hover,
    .login-btn:hover {
        transform: none;
        background: transparent;
        color: var(--text-tertiary);
    }

    .logo:hover .logo-icon {
        transform: none;
    }

    .logo:hover .site-name {
        color: var(--text-primary);
    }

    .metric-value {
        transform: none !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}