@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&display=swap');

/* B.E ACADEMY - Master CSS Variables */
:root {
    /* The Palette */
    --bg-deep: #070B11; /* Midnight Abyss */
    --bg-panel: rgba(20, 27, 40, 0.6);
    --accent-orange: #ff9f2e;
    --botswana-blue: #47A8E5;
    --text-primary: #ffffff;
    --text-secondary: #8B949E;
    
    /* Glassmorphism */
    --glass-border: 1px solid rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --glass-blur: backdrop-filter: blur(16px);
    
    /* Animation Math */
    --spring-easing: cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-deep);
    color: var(--text-primary);
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(71, 168, 229, 0.08), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(255, 159, 46, 0.08), transparent 25%);
}

/* --- Layout Shell --- */
#lms-app-root {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}

/* --- Sidebar Navigation --- */
.lms-sidebar {
    background: var(--bg-panel);
    border-right: var(--glass-border);
    backdrop-filter: blur(20px);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    z-index: 10;
}

.lms-brand {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    background: linear-gradient(135deg, var(--text-primary), var(--botswana-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lms-nav-menu {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.lms-nav-item {
    padding: 0.8rem 1rem;
    border-radius: 8px;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lms-nav-item:hover, .lms-nav-item.active {
    background: rgba(255, 159, 46, 0.1);
    color: var(--accent-orange);
}

/* --- Main Content Area --- */
.lms-main {
    padding: 2.5rem 3rem;
    overflow-y: auto;
}

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

.lms-header h1 {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

/* --- The Hero Banner (Botswana Blue x Orange) --- */
.lms-hero-banner {
    background: linear-gradient(135deg, rgba(71, 168, 229, 0.2) 0%, rgba(255, 159, 46, 0.2) 100%);
    border: var(--glass-border);
    border-radius: 16px;
    padding: 3rem;
    margin-bottom: 3rem;
    position: relative;
    overflow: hidden;
}

.lms-hero-banner::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, var(--botswana-blue) 0%, var(--accent-orange) 100%);
    opacity: 0.1;
    z-index: 0;
}

.lms-hero-content {
    position: relative;
    z-index: 1;
}

.lms-hero-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

/* --- Bento Grid: Course Catalog --- */
.lms-bento-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.lms-course-card {
    background: var(--bg-panel);
    border: var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.4s var(--spring-easing), box-shadow 0.4s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.lms-course-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 159, 46, 0.15);
    border-color: rgba(255, 159, 46, 0.3);
}

.lms-card-image {
    height: 180px;
    background-color: #1a2230;
    background-size: cover;
    background-position: center;
    position: relative;
}

.lms-card-price-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent-orange);
    color: #000;
    font-weight: 800;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    box-shadow: 0 4px 15px rgba(255, 159, 46, 0.4);
}

.lms-card-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.lms-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.lms-card-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.lms-btn-primary {
    background: linear-gradient(135deg, var(--accent-orange), #ff7a00);
    color: #000;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    width: 100%;
}

.lms-btn-primary:hover {
    box-shadow: 0 0 20px rgba(255, 159, 46, 0.4);
    transform: scale(1.02);
}

/* Loading Skeleton */
.skeleton {
    animation: pulse 2s infinite ease-in-out;
}
@keyframes pulse {
    0% { background-color: rgba(255, 255, 255, 0.05); }
    50% { background-color: rgba(255, 255, 255, 0.1); }
    100% { background-color: rgba(255, 255, 255, 0.05); }
}