:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --secondary: #10b981;
    --background: #f8fafc;
    --surface: #ffffff;
    --text: #1e293b;
    --text-secondary: #64748b;
    --border: #e2e8f0;
    --card-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --card-shadow-hover: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

.dark-theme {
    --background: #0f172a;
    --surface: #1e293b;
    --text: #f8fafc;
    --text-secondary: #94a3b8;
    --border: #334155;
    --card-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.2), 0 2px 4px -2px rgb(0 0 0 / 0.2);
    --card-shadow-hover: 0 20px 25px -5px rgb(0 0 0 / 0.2), 0 8px 10px -6px rgb(0 0 0 / 0.2);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--background);
    color: var(--text);
    transition: background-color 0.3s, color 0.3s;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
}

/* Navbar */
.navbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text);
    text-decoration: none;
    font-size: 1.25rem;
}

.navbar-brand i {
    font-size: 1.5rem;
    color: var(--primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: bold;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.2rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s;
}

.theme-toggle:hover {
    background-color: var(--border);
}

/* Dashboard */
.dashboard-container {
    flex: 1;
    padding: 2rem 0;
}

/* Welcome Card */
.welcome-card {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 3rem;
    border-radius: 1.5rem;
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--card-shadow-hover);
}

.welcome-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    transform: rotate(-45deg);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0% {
        transform: rotate(-45deg) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: rotate(-45deg) scale(1.2);
        opacity: 0.8;
    }
    100% {
        transform: rotate(-45deg) scale(1);
        opacity: 0.5;
    }
}

.welcome-card h1 {
    font-size: 2.5rem;
    margin: 0 0 0.5rem;
    position: relative;
    font-weight: 800;
}

.welcome-card p {
    font-size: 1.25rem;
    opacity: 0.9;
    margin: 0;
    position: relative;
}

/* Services Grid */
.services-grid {
    display: grid;
    gap: 2rem;
}

.service-section {
    background: var(--surface);
    border-radius: 1.75rem;
    padding: 2.5rem;
    border: 1px solid var(--border);
    transition: all 0.4s ease;
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
}

.service-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.service-section:hover::before {
    opacity: 1;
}

.service-section:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
}

.section-title {
    font-size: 1.85rem;
    color: var(--text);
    margin-bottom: 2.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 800;
    position: relative;
    padding-bottom: 0.75rem;
    letter-spacing: -0.02em;
}

.section-title i {
    font-size: 2.2rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* Service Card */
.service-card {
    display: flex;
    align-items: center;
    padding: 1.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1.25rem;
    text-decoration: none;
    color: var(--text);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--primary);
    background: linear-gradient(145deg, var(--surface), var(--background));
}

.service-card:hover .card-arrow i {
    transform: translateX(6px);
    opacity: 1;
    color: var(--primary);
}

.card-icon {
    width: 56px;
    height: 56px;
    margin-right: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: var(--background);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.service-card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 16px -4px rgba(0, 0, 0, 0.1);
}

.service-card:hover .svg-icon {
    transform: scale(1.15);
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.svg-icon {
    width: 38px;
    height: 38px;
    transition: all 0.4s ease;
}

.card-content {
    flex: 1;
    transition: transform 0.3s ease;
}

.service-card:hover .card-content {
    transform: translateX(4px);
}

.card-content h3 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.01em;
    transition: color 0.3s ease;
}

.service-card:hover .card-content h3 {
    color: var(--primary);
}

.card-content p {
    margin: 0.35rem 0 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.service-card:hover .card-content p {
    color: var(--primary-dark);
}

.card-arrow {
    margin-left: 1.25rem;
    opacity: 0.5;
    transition: all 0.4s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
}

.service-card:hover .card-arrow {
    background: rgba(59, 130, 246, 0.1);
}

.card-arrow i {
    font-size: 1.25rem;
    transition: all 0.4s ease;
}

/* Custom Service Colors */
.proxmox .svg-icon { filter: hue-rotate(15deg) saturate(1.2); }
.proxmox-backup .svg-icon { filter: hue-rotate(30deg) saturate(1.2); }
.synology .svg-icon { filter: hue-rotate(45deg) saturate(1.2); }
.nginx-proxy-manager .svg-icon { filter: hue-rotate(60deg) saturate(1.2); }
.openwrt .svg-icon { filter: hue-rotate(75deg) saturate(1.2); }
.cloudflare .svg-icon { filter: hue-rotate(90deg) saturate(1.2); }
.wireguard .svg-icon { filter: hue-rotate(105deg) saturate(1.2); }
.adguard .svg-icon { filter: hue-rotate(120deg) saturate(1.2); }
.pihole .svg-icon { filter: hue-rotate(135deg) saturate(1.2); }
.portainer .svg-icon { filter: hue-rotate(150deg) saturate(1.2); }
.n8n .svg-icon { filter: hue-rotate(165deg) saturate(1.2); }
.aapanel .svg-icon { filter: hue-rotate(180deg) saturate(1.2); }
.kavita .svg-icon { filter: hue-rotate(195deg) saturate(1.2); }

/* Footer */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .welcome-card {
        text-align: center;
        padding: 2rem;
    }

    .welcome-card h1 {
        font-size: 2rem;
    }

    .service-section {
        margin-bottom: 1rem;
        padding: 1.5rem;
    }

    .section-title {
        font-size: 1.25rem;
    }
}

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

.service-section {
    animation: fadeIn 0.5s ease-out;
}