:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --secondary: #ec4899;
    --background: #0f172a;
    --surface: #1e293b;
    --surface-hover: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border: #334155;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(236, 72, 153, 0.08) 0%, transparent 25%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

.header {
    text-align: center;
    margin-bottom: 4rem;
    animation: fadeInDown 0.8s ease-out;
}

.logo-container {
    margin-bottom: 1.5rem;
}

.logo {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
    transition: var(--transition);
}

.logo:hover {
    transform: scale(1.05) rotate(3deg);
}

.title {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    margin-bottom: 0.5rem;
}

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

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.apps-grid {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.category {
    animation: fadeInUp 0.8s ease-out backwards;
}

.category:nth-child(2) { animation-delay: 0.1s; }
.category:nth-child(3) { animation-delay: 0.2s; }

.category-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.category-icon {
    color: var(--primary);
    font-size: 1.25rem;
}

.category-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    background: var(--surface-hover);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}

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

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: var(--transition);
}

.card:hover .card-icon {
    background: var(--primary);
    color: white;
    transform: scale(1.1);
}

/* Specific colors for specific apps (optional overrides) */
.card-icon.mailcow { color: #6366f1; background: rgba(99, 102, 241, 0.1); }
.card:hover .card-icon.mailcow { background: #6366f1; color: white; }

.card-icon.bitwarden { color: #175ddc; background: rgba(23, 93, 220, 0.1); }
.card:hover .card-icon.bitwarden { background: #175ddc; color: white; }

.card-icon.jellyfin { color: #a371f7; background: rgba(163, 113, 247, 0.1); }
.card:hover .card-icon.jellyfin { background: #a371f7; color: white; }

.card-icon.immich { color: #8e7bf9; background: rgba(142, 123, 249, 0.1); }
.card:hover .card-icon.immich { background: #8e7bf9; color: white; }

.card-icon.grafana { color: #f97316; background: rgba(249, 115, 22, 0.1); }
.card:hover .card-icon.grafana { background: #f97316; color: white; }

.card-icon.uptime { color: #22c55e; background: rgba(34, 197, 94, 0.1); }
.card:hover .card-icon.uptime { background: #22c55e; color: white; }

.card-icon.filebrowser { color: #3b82f6; background: rgba(59, 130, 246, 0.1); }
.card:hover .card-icon.filebrowser { background: #3b82f6; color: white; }

.card-icon.speedtest { color: #06b6d4; background: rgba(6, 182, 212, 0.1); }
.card:hover .card-icon.speedtest { background: #06b6d4; color: white; }

.card-icon.excalidraw { color: #a855f7; background: rgba(168, 85, 247, 0.1); }
.card:hover .card-icon.excalidraw { background: #a855f7; color: white; }

.card-icon.calibre, .card-icon.calibre-app { color: #f1c40f; background: rgba(241, 196, 15, 0.1); }
.card:hover .card-icon.calibre, .card:hover .card-icon.calibre-app { background: #f1c40f; color: white; }

.card-icon.vikunja { color: #3b82f6; background: rgba(59, 130, 246, 0.1); }
.card:hover .card-icon.vikunja { background: #3b82f6; color: white; }

.card-icon.memos { color: #14b8a6; background: rgba(20, 184, 166, 0.1); }
.card:hover .card-icon.memos { background: #14b8a6; color: white; }

.card-icon.trilium { color: #6366f1; background: rgba(99, 102, 241, 0.1); }
.card:hover .card-icon.trilium { background: #6366f1; color: white; }

.card-icon.notesnook { color: #10b981; background: rgba(16, 185, 129, 0.1); }
.card:hover .card-icon.notesnook { background: #10b981; color: white; }

.card-icon.ghost { color: #f8fafc; background: rgba(248, 250, 252, 0.1); }
.card:hover .card-icon.ghost { background: #f8fafc; color: #0f172a; }

.card-icon.jupyter { color: #f97316; background: rgba(249, 115, 22, 0.1); }
.card:hover .card-icon.jupyter { background: #f97316; color: white; }

.card-icon.teable { color: #8b5cf6; background: rgba(139, 92, 246, 0.1); }
.card:hover .card-icon.teable { background: #8b5cf6; color: white; }

.card-icon.pdf { color: #ef4444; background: rgba(239, 68, 68, 0.1); }
.card:hover .card-icon.pdf { background: #ef4444; color: white; }

.card-icon.monitor { color: #3b82f6; background: rgba(59, 130, 246, 0.1); }
.card:hover .card-icon.monitor { background: #3b82f6; color: white; }

.card-icon.stocks { color: #10b981; background: rgba(16, 185, 129, 0.1); }
.card:hover .card-icon.stocks { background: #10b981; color: white; }

.card-icon.n8n { color: #ea580c; background: rgba(234, 88, 12, 0.1); }
.card:hover .card-icon.n8n { background: #ea580c; color: white; }

.card-icon.traefik { color: #0ea5e9; background: rgba(14, 165, 233, 0.1); }
.card:hover .card-icon.traefik { background: #0ea5e9; color: white; }

.card-icon.portainer { color: #3b82f6; background: rgba(59, 130, 246, 0.1); }
.card:hover .card-icon.portainer { background: #3b82f6; color: white; }

.card-icon.minio { color: #dc2626; background: rgba(220, 38, 38, 0.1); }
.card:hover .card-icon.minio { background: #dc2626; color: white; }

.card-icon.dozle { color: #facc15; background: rgba(250, 204, 21, 0.1); }
.card:hover .card-icon.dozle { background: #facc15; color: #0f172a; }

.card-icon.it-tools { color: #ec4899; background: rgba(236, 72, 153, 0.1); }
.card:hover .card-icon.it-tools { background: #ec4899; color: white; }

.card-content {
    flex: 1;
    min-width: 0; /* Prevent text overflow */
}

.card-content h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.footer {
    text-align: center;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

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

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

/* Mobile Responsiveness */
@media (max-width: 640px) {
    .container {
        padding: 2rem 1rem;
    }
    
    .title {
        font-size: 2rem;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
}