/* 
    Nexus Scheduler UI - Core Styling
    Premium Design System
*/

:root {
    --primary: #6366f1; /* Indigo 500 */
    --primary-dark: #4338ca;
    --secondary: #ec4899; /* Pink 500 */
    --accent: #f59e0b; /* Amber 500 */
    --success: #10b981; /* Emerald 500 */
    --danger: #ef4444; /* Red 500 */
    --info: #3b82f6; /* Blue 500 */
    
    --bg-main: #0f172a; /* Slate 900 */
    --bg-card: #1e293b; /* Slate 800 */
    --bg-sidebar: #020617;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    
    --border: #334155;
    --glass: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.3);
}

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

body {
    font-family: 'Outfit', 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    overflow-x: hidden;
    line-height: 1.5;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.025em;
    color: #fff;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

/* Glassmorphism Classes */
.glass {
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
}

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

/* Sidebar */
aside.sidebar {
    width: 280px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem;
    position: sticky;
    top: 0;
    height: 100vh;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
    padding-left: 0.5rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.5);
}

.nav-section {
    margin-bottom: 2rem;
}

.nav-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 1rem;
    padding-left: 0.5rem;
    letter-spacing: 0.1em;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    transform: translateX(4px);
}

.nav-link.active {
    background: linear-gradient(90deg, var(--primary-dark), var(--primary));
    color: #fff;
}

/* Main Content */
main.main-content {
    flex: 1;
    padding: 2rem 3rem;
    background: radial-gradient(circle at 50% -20%, #1e1b4b 0%, var(--bg-main) 70%);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border-radius: 50px;
    border: 1px solid var(--border);
}

.avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
}

/* Dashboard Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.stat-title {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
}

.stat-value {
    font-size: 1.875rem;
    font-weight: 700;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.5);
    filter: brightness(1.1);
}

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

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

/* Tables / Lists */
.content-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    text-align: left;
    padding: 1rem 1.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-dim);
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Tokens badge */
.token-badge {
    background: linear-gradient(135deg, #fbbf24, #d97706);
    color: #000;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}