:root {
    --bg-color: #0c0d12;
    --acc-color: #3f72af;
    --acc-color-glow: rgba(63, 114, 175, 0.5);
    --text-color: #f9f7f7;
    --text-muted: #dbe2ef;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --gradient-1: linear-gradient(135deg, #112d4e 0%, #1e3a5f 100%);
    --gradient-acc: linear-gradient(135deg, #3f72af 0%, #112d4e 100%);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

h1, h2, h3, .logo {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
}

/* BACKGROUND BLOBS */
.background-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
}

.blob-1 {
    top: -10%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: #3f72af;
}

.blob-2 {
    bottom: -10%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: #112d4e;
}

.blob-3 {
    top: 40%;
    left: 40%;
    width: 400px;
    height: 400px;
    background: #3f72af;
    opacity: 0.1;
}

/* GLASSMORPHISM */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 20px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-nav {
    background: rgba(12, 13, 18, 0.8);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.logo {
    font-size: 1.8rem;
    letter-spacing: -1px;
}

.logo span {
    color: var(--acc-color);
    text-shadow: 0 0 10px var(--acc-color-glow);
}

.tagline {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* LAYOUT */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

main {
    padding-top: 120px;
    padding-bottom: 60px;
}

.hero {
    margin-bottom: 80px;
    text-align: center;
}

.hero-content {
    margin-bottom: 40px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.hero-content span {
    background: var(--gradient-acc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.featured-card {
    max-width: 900px;
    margin: 0 auto;
    padding: 15px;
    overflow: hidden;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    border-radius: 12px;
    overflow: hidden;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.separator {
    border: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--glass-border), transparent);
    margin: 60px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.section-header span {
    color: var(--acc-color);
}

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

/* GRID */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.video-card {
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.video-card:hover {
    transform: translateY(-10px);
    border-color: var(--acc-color);
    box-shadow: 0 10px 40px -10px var(--acc-color-glow);
}

.video-card h3 {
    font-size: 1.1rem;
    margin-top: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 2.8rem;
    line-height: 1.4;
    color: var(--text-color);
}

/* SKELETON LOADERS */
.skeleton-card {
    height: 280px;
    background: linear-gradient(90deg, var(--glass-bg) 25%, rgba(255, 255, 255, 0.1) 50%, var(--glass-bg) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

footer {
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--glass-border);
    margin-top: 60px;
}

footer p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* RESPONSIVENESS */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    .video-grid {
        grid-template-columns: 1fr;
    }
    .glass-nav {
        flex-direction: column;
        gap: 10px;
        padding: 1rem;
    }
}