/* /root/xpd-dns/web/index.css */
/* Minimalist, high-performance theme with Dark, Light, and Auto modes */

:root, [data-theme="dark"] {
    --bg-main: #0e0f12;
    --bg-card: #16171b;
    --bg-card-hover: #1c1e24;
    --bg-code: #20222a;
    --bg-code-hover: #282c37;
    --border: #252832;
    --border-hover: #373c4b;
    --accent: #00d2ff;
    --accent-dim: rgba(0, 210, 255, 0.12);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --text-heading: #ffffff;
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.25);
    --tooltip-bg: #000000;
    --tooltip-text: #ffffff;
    --badge-bg: rgba(0, 210, 255, 0.12);
    --badge-color: #00d2ff;
    --badge-border: rgba(0, 210, 255, 0.25);
    --badge-sec-bg: rgba(156, 163, 175, 0.12);
    --badge-sec-color: #cbd5e1;
    --badge-sec-border: rgba(156, 163, 175, 0.2);
    --guide-tab-bg: transparent;
    --guide-tab-text: #9ca3af;
    --guide-tab-hover-bg: #20222a;
    --guide-tab-hover-text: #ffffff;
    --guide-tab-active-bg: #00d2ff;
    --guide-tab-active-text: #0c0d0e;
    --theme-toggle-bg: #16171b;
    --theme-toggle-border: #252832;
    --theme-toggle-btn-active-bg: #252832;
    --theme-toggle-btn-active-color: #00d2ff;
    color-scheme: dark;
}

[data-theme="light"] {
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --bg-code: #f1f5f9;
    --bg-code-hover: #e2e8f0;
    --border: #e2e8f0;
    --border-hover: #cbd5e1;
    --accent: #0284c7;
    --accent-dim: rgba(2, 132, 199, 0.1);
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-heading: #0f172a;
    --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.02);
    --tooltip-bg: #0f172a;
    --tooltip-text: #ffffff;
    --badge-bg: rgba(2, 132, 199, 0.1);
    --badge-color: #0284c7;
    --badge-border: rgba(2, 132, 199, 0.25);
    --badge-sec-bg: rgba(100, 116, 139, 0.1);
    --badge-sec-color: #475569;
    --badge-sec-border: rgba(100, 116, 139, 0.2);
    --guide-tab-bg: transparent;
    --guide-tab-text: #64748b;
    --guide-tab-hover-bg: #f1f5f9;
    --guide-tab-hover-text: #0f172a;
    --guide-tab-active-bg: #0284c7;
    --guide-tab-active-text: #ffffff;
    --theme-toggle-bg: #f1f5f9;
    --theme-toggle-border: #e2e8f0;
    --theme-toggle-btn-active-bg: #ffffff;
    --theme-toggle-btn-active-color: #0284c7;
    color-scheme: light;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, 'Inter', Helvetica, Arial, sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
    transition: background-color 0.25s ease, color 0.25s ease;
}

.container {
    max-width: 760px;
    margin: 44px auto;
    padding: 0 20px;
}

header {
    margin-bottom: 24px;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

header h1 {
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-heading);
}

/* Theme Switcher */
.theme-switcher {
    display: inline-flex;
    align-items: center;
    background-color: var(--theme-toggle-bg);
    border: 1px solid var(--theme-toggle-border);
    border-radius: 20px;
    padding: 3px;
    gap: 2px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    flex-shrink: 0;
    transition: background-color 0.25s ease, border-color 0.25s ease;
}

.theme-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: none;
    border: none;
    padding: 5px 10px;
    border-radius: 16px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
    user-select: none;
}

.theme-btn .theme-icon {
    flex-shrink: 0;
}

.theme-btn:hover {
    color: var(--text-heading);
}

.theme-btn.active {
    background-color: var(--theme-toggle-btn-active-bg);
    color: var(--theme-toggle-btn-active-color);
    font-weight: 600;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

main {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 22px 24px;
    box-shadow: var(--shadow-card);
    transition: border-color 0.2s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}

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

.card h2 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-heading);
    display: flex;
    align-items: center;
    gap: 8px;
}

.badge {
    background-color: var(--badge-bg);
    color: var(--badge-color);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: 5px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border: 1px solid var(--badge-border);
}

.badge-secondary {
    background-color: var(--badge-sec-bg);
    color: var(--badge-sec-color);
    border: 1px solid var(--badge-sec-border);
}

.card-content {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.desc {
    color: var(--text-secondary);
    font-size: 0.88rem;
    margin-bottom: 14px;
    line-height: 1.45;
}

.endpoint-box {
    display: flex;
    align-items: center;
    gap: 10px;
}

.label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.88rem;
}

.desktop-only {
    display: inline-block;
}

.copyable-wrapper {
    position: relative;
    display: inline-block;
    cursor: pointer;
    flex-grow: 1;
}

.code-val {
    background-color: var(--bg-code);
    color: var(--text-primary);
    font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.85rem;
    padding: 7px 12px;
    border-radius: 6px;
    border: 1px solid var(--border);
    word-break: break-all;
    display: block;
    width: 100%;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.copyable-wrapper:hover .code-val,
.copyable-wrapper:active .code-val {
    background-color: var(--bg-code-hover);
    border-color: var(--accent);
    color: var(--text-heading);
}

.tooltip {
    visibility: hidden;
    position: absolute;
    bottom: 135%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--tooltip-bg);
    color: var(--tooltip-text);
    text-align: center;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    z-index: 20;
    pointer-events: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border);
}

.tooltip::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: var(--tooltip-bg) transparent transparent transparent;
}

.copyable-wrapper:hover .tooltip {
    visibility: visible;
    opacity: 1;
}

/* IP Grid */
.ip-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

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

.ip-item .label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Profiles */
.profile-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.profile-btn {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 7px;
    text-decoration: none;
    transition: background-color 0.2s ease, border-color 0.2s ease;
    cursor: pointer;
}

.profile-btn:hover,
.profile-btn:active {
    background-color: var(--bg-card-hover);
    border-color: var(--border-hover);
}

.profile-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.profile-label {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.profile-sub {
    color: var(--text-muted);
    font-size: 0.78rem;
}

.profile-link {
    color: var(--accent);
    font-size: 0.82rem;
    font-weight: 600;
}

/* Tabs & Guide */
.guide-tabs {
    display: flex;
    gap: 8px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
    margin-bottom: 14px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

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

.guide-tab {
    background: var(--guide-tab-bg);
    border: 1px solid var(--border);
    color: var(--guide-tab-text);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.guide-tab:hover {
    background-color: var(--guide-tab-hover-bg);
    color: var(--guide-tab-hover-text);
    border-color: var(--border-hover);
}

.guide-tab.active {
    background-color: var(--guide-tab-active-bg);
    color: var(--guide-tab-active-text);
    border-color: var(--guide-tab-active-bg);
    font-weight: 600;
}

.guide-panel {
    display: none;
    font-size: 0.88rem;
    line-height: 1.5;
}

.guide-panel.active {
    display: block;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(3px); }
    to { opacity: 1; transform: translateY(0); }
}

.steps-list {
    margin: 0;
    padding-left: 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.code-inline {
    background-color: var(--bg-code);
    color: var(--accent);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.82rem;
    word-break: break-all;
    border: 1px solid var(--border);
}

.code-block {
    background-color: var(--bg-code);
    border: 1px solid var(--border);
    padding: 10px 14px;
    border-radius: 6px;
    overflow-x: auto;
    font-family: monospace;
    font-size: 0.82rem;
    color: var(--text-primary);
    margin: 8px 0;
}

.text-link {
    color: var(--accent);
    text-decoration: underline;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    text-align: center;
    padding: 6px 0;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-num {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.02em;
}

.stat-lbl {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .container {
        margin: 20px auto 32px;
        padding: 0 14px;
    }
    
    header {
        margin-bottom: 18px;
    }

    header h1 {
        font-size: 1.75rem;
    }

    .theme-btn {
        padding: 5px 8px;
    }

    .theme-btn .theme-text {
        display: none;
    }
    
    .card {
        padding: 16px 14px;
        border-radius: 8px;
    }

    .card h2 {
        font-size: 1.05rem;
    }
    
    .desktop-only {
        display: none;
    }
    
    .endpoint-box {
        flex-direction: column;
        align-items: stretch;
    }
    
    .copyable-wrapper {
        width: 100%;
    }
    
    .code-val {
        padding: 9px 12px;
        font-size: 0.8rem;
    }
    
    .ip-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .profile-btn {
        padding: 11px 14px;
    }

    .guide-tabs {
        padding-bottom: 6px;
        gap: 6px;
    }

    .guide-tab {
        padding: 6px 10px;
        font-size: 0.78rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .stat-num {
        font-size: 1.65rem;
    }
}