:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --primary: #3b82f6;
    --accent: #60a5fa;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --danger: #ef4444;
    --success: #22c55e;
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
}

.app-container {
    display: flex;
    height: 100%;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: rgba(15, 23, 42, 0.95);
    border-right: 1px solid var(--glass-border);
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.nav-links li {
    margin-bottom: 10px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.nav-links li.active a,
.nav-links a:hover {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 40px;
    overflow-y: auto;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.1), transparent 40%);
}

header {
    margin-bottom: 40px;
}

header h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

header p {
    color: var(--text-muted);
}

/* Cards & Glassmorphism */
.glass {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.clone-tool {
    margin-bottom: 40px;
}

.clone-tool h2 {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.clone-tool p {
    color: var(--text-muted);
    margin-bottom: 25px;
    line-height: 1.6;
}

/* Form Elements */
.input-group {
    display: flex;
    gap: 15px;
}

input[type="url"] {
    flex: 1;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.5);
    color: var(--text-main);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

input[type="url"]:focus {
    border-color: var(--primary);
}

button {
    padding: 15px 30px;
    background: var(--primary);
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    font-size: 1rem;
    transition: transform 0.2s, background 0.3s;
    display: flex;
    align-items: center;
    gap: 10px;
}

button:hover {
    background: var(--accent);
    transform: translateY(-2px);
}

/* Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.clone-card {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 20px;
    transition: transform 0.3s;
}

.clone-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.clone-card h3 {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.clone-card .timestamp {
    font-size: 0.8rem;
    color: var(--text-muted);
    opacity: 0.7;
}

.clone-actions {
    margin-top: 15px;
    display: flex;
    gap: 10px;
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.85rem;
    text-decoration: none;
    border-radius: 6px;
    background: rgba(59, 130, 246, 0.2);
    color: var(--primary);
    display: inline-block;
}

.btn-small:hover {
    background: var(--primary);
    color: white;
}

/* Loaders & Status */
.loader {
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top: 3px solid white;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hidden {
    display: none;
}

#statusMessage {
    margin-top: 15px;
    font-weight: 500;
}

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