:root {
    --bg-color: #0b0c10;
    --surface-color: #1a1c23;
    --surface-light: #242730;
    --primary-color: #4facfe;
    --primary-hover: #3b8cd9;
    --text-primary: #ffffff;
    --text-secondary: #9da2b4;
    --border-color: rgba(255, 255, 255, 0.08);
    --success: #38b2ac;
    --danger: #e53e3e;
    --warning: #ed8936;
    --radius: 12px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

:root.light-theme {
    --bg-color: #f4f7f6;
    --surface-color: #ffffff;
    --surface-light: #e2e8f0;
    --primary-color: #3182ce;
    --primary-hover: #2b6cb0;
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --border-color: rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: rgba(26, 28, 35, 0.8);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-color);
    padding: 2rem 0;
    display: flex;
    flex-direction: column;
}

.logo {
    padding: 0 2rem;
    margin-bottom: 3rem;
}

.logo h2 {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--primary-color);
}

.server-badge {
    margin-top: 0.5rem;
    font-size: 0.75rem;
    background: rgba(79, 172, 254, 0.1);
    color: var(--primary-color);
    padding: 4px 8px;
    border-radius: 4px;
    display: inline-block;
    border: 1px solid rgba(79, 172, 254, 0.2);
}

.nav-links {
    list-style: none;
    flex: 1;
}

.nav-links li {
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    border-right: 3px solid transparent;
}

.nav-links li:hover, .nav-links li.active {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.03);
}

.nav-links li.active {
    border-right-color: var(--primary-color);
}

/* Main Content */
.content {
    flex: 1;
    padding: 3rem 4rem;
    height: 100vh;
    overflow-y: auto;
}

header {
    margin-bottom: 3rem;
    animation: fadeInDown 0.5s ease;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

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

.view-section {
    display: none;
    animation: fadeIn 0.4s ease;
}

.view-section.active {
    display: block;
}

/* Grid & Cards */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.col-span-2 {
    grid-column: span 2;
}

.card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.12);
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    background-color: var(--surface-light);
    color: var(--text-primary);
}

.btn:hover {
    background-color: rgba(255,255,255,0.1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e5dd8 100%);
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(79, 172, 254, 0.5);
    transform: translateY(-2px);
    background: linear-gradient(135deg, var(--primary-hover) 0%, #174ab8 100%);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    border-color: var(--text-secondary);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

input[type="text"], select {
    width: 100%;
    padding: 0.8rem 1rem;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

input[type="text"]:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.2);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    background: var(--bg-color);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.checkbox-group label {
    margin: 0;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
}

/* Specific Components */
.storage-info {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.storage-chart {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: conic-gradient(var(--primary-color) 0%, var(--surface-light) 0%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.storage-chart::before {
    content: '';
    position: absolute;
    width: 80px;
    height: 80px;
    background-color: var(--surface-color);
    border-radius: 50%;
}

#storage-percent {
    position: relative;
    font-weight: 700;
    font-size: 1.2rem;
}

.device-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.device-list li {
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.online { background-color: var(--success); box-shadow: 0 0 8px var(--success); }
.status-dot.offline { background-color: var(--danger); box-shadow: 0 0 8px var(--danger); }
.status-dot.loading { background-color: var(--warning); animation: pulse 1s infinite alternate; }

.wol-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

/* Pre / Code Logs */
pre {
    background-color: var(--bg-color);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    border: 1px solid var(--border-color);
    color: #a9b7c6;
    font-family: monospace;
    font-size: 0.9rem;
}

.preview-card {
    margin-top: 2rem;
}

.log-container {
    margin-top: 1.5rem;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--success);
    color: #fff;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 1000;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.error {
    background-color: var(--danger);
}

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

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

@keyframes pulse {
    from { opacity: 0.5; }
    to { opacity: 1; }
}

/* Responsive Design (Mobile Support) */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        padding: 1rem 0;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        height: auto;
        position: sticky;
        top: 0;
        z-index: 100;
    }
    
    .logo {
        margin-bottom: 1rem;
        text-align: center;
    }
    
    .nav-links {
        display: flex;
        overflow-x: auto;
        padding-bottom: 0.5rem;
        -webkit-overflow-scrolling: touch;
    }
    
    .nav-links li {
        padding: 0.8rem 1.2rem;
        white-space: nowrap;
        border-right: none;
        border-bottom: 3px solid transparent;
    }
    
    .nav-links li.active {
        border-right-color: transparent;
        border-bottom-color: var(--primary-color);
    }
    
    .content {
        padding: 1.5rem 1rem;
        height: auto;
        overflow-y: visible;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .grid-container {
        grid-template-columns: 1fr;
    }
    
    .col-span-2 {
        grid-column: span 1;
    }
    
    .storage-info {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .wol-grid {
        grid-template-columns: 1fr;
    }
}