:root {
    --primary: #3FA2EA;
    --primary-dark: #2a8bc9;
    --accent: #ff007a;
    --bg: #f8fafc;
    --surface: #ffffff;
    --text: #0f172a;
    --text-muted: #64748b;
    --border: rgba(0, 0, 0, 0.1);
    --radius: 1rem;
    --glass: rgba(255, 255, 255, 0.8);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    --input-bg: #f1f5f9;
}

body.dark-mode {
    --bg: #0f172a;
    --surface: #1e293b;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --border: rgba(255, 255, 255, 0.1);
    --glass: rgba(30, 41, 59, 0.7);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    --input-bg: rgba(255, 255, 255, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--bg);
    background-image: radial-gradient(circle at top right, var(--surface), var(--bg));
    background-attachment: fixed;
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Glassmorphism / Premium look */
.glass {
    background: var(--glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--card-shadow);
}

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

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

.animate-fade {
    animation: fadeIn 0.6s ease-out forwards;
}

/* Responsive Grid */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
}

/* Admin Dashboard Specials */
.sidebar {
    width: 280px;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    padding: 2rem;
    border-right: 1px solid var(--border);
}

.main-content {
    margin-left: 280px;
    padding: 2rem;
}

@media (max-width: 768px) {
    .sidebar { width: 100%; height: auto; position: relative; border-right: none; border-bottom: 1px solid var(--border); }
    .main-content { margin-left: 0; }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    border-radius: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: scale(1.02);
}

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

.btn-outline:hover {
    background: var(--border);
}