/* Classic Card Navigation Style */
:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-main: #f5f5f5;
    --bg-card: #ffffff;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border: #e5e7eb;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 12px rgba(0,0,0,0.15);
    --radius: 8px;
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
}

[data-theme="dark"] {
    --bg-main: #111827;
    --bg-card: #1f2937;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;
    --border: #374151;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-hover: 0 4px 12px rgba(0,0,0,0.4);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

/* Header */
.header {
    background: var(--bg-card);
    padding: var(--space-lg) var(--space-md);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 800px;
    margin: 0 auto;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--primary);
}

.search-box {
    display: flex;
    background: var(--bg-main);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

.search-select {
    background: transparent;
    border: none;
    padding: 12px 14px;
    color: var(--text-primary);
    font-size: 14px;
    border-right: 1px solid var(--border);
    cursor: pointer;
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 12px 14px;
    font-size: 15px;
    color: var(--text-primary);
    outline: none;
}

.search-btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 12px 20px;
    font-size: 14px;
    cursor: pointer;
}

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

/* Main */
.main {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
}

.nav-section {
    margin-bottom: var(--space-xl);
}

.nav-section h2 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.nav-section h2 span {
    font-size: 20px;
}

.sites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--space-md);
}

/* Card */
.site-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--space-md);
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

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

.site-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    object-fit: cover;
    background: #fff;
    flex-shrink: 0;
}

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

.site-name {
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.site-desc {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Hover Popup */
.site-card .hover-box {
    display: none;
    position: absolute;
    inset: 0;
    background: var(--primary);
    border-radius: var(--radius);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
}

.site-card:hover .hover-box {
    display: flex;
}

.site-card {
    position: relative;
}

.hover-url {
    color: white;
    font-size: 11px;
    text-align: center;
    word-break: break-all;
}

.hover-actions {
    display: flex;
    gap: 6px;
}

.hover-btn {
    padding: 6px 12px;
    background: white;
    color: var(--primary);
    border: none;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
}

.hover-btn.secondary {
    background: rgba(255,255,255,0.2);
    color: white;
}

/* Bottom Left - Site Search */
.search-fixed {
    position: fixed;
    bottom: var(--space-lg);
    left: var(--space-lg);
    z-index: 99;
}

.search-box-fixed {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--space-sm);
    box-shadow: var(--shadow-hover);
    width: 260px;
}

.search-box-fixed input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 14px;
    background: var(--bg-main);
    color: var(--text-primary);
    outline: none;
}

.search-box-fixed input:focus {
    border-color: var(--primary);
}

.search-results {
    margin-top: var(--space-sm);
    max-height: 180px;
    overflow-y: auto;
}

.search-result-item {
    padding: 8px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
}

.search-result-item:hover {
    background: var(--primary);
    color: white;
}

/* Bottom Right - Toolbar */
.toolbar-fixed {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    z-index: 99;
}

.toolbar-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    text-decoration: none;
}

.toolbar-btn:hover {
    box-shadow: var(--shadow-hover);
    transform: scale(1.05);
}

.toolbar-btn.primary {
    background: var(--primary);
    border: none;
}

/* Footer */
.footer {
    text-align: center;
    padding: var(--space-lg);
    color: var(--text-muted);
    font-size: 13px;
    border-top: 1px solid var(--border);
}

/* Mobile */
@media (max-width: 640px) {
    .sites-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .site-card {
        padding: var(--space-sm);
    }

    .site-icon {
        width: 32px;
        height: 32px;
    }

    .search-fixed {
        bottom: var(--space-md);
        left: var(--space-md);
    }

    .search-box-fixed {
        width: 200px;
    }

    .toolbar-fixed {
        bottom: var(--space-md);
        right: var(--space-md);
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.nav-section { animation: fadeIn 0.3s ease backwards; }
.nav-section:nth-child(1) { animation-delay: 0.05s; }
.nav-section:nth-child(2) { animation-delay: 0.1s; }
.nav-section:nth-child(3) { animation-delay: 0.15s; }
.nav-section:nth-child(4) { animation-delay: 0.2s; }