/* ============================================
   Demo Video Page
   ============================================ */

/* === HERO === */
.demo-hero {
    padding: calc(var(--space-32) + 2rem) 0 var(--space-16);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.demo-hero .section-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-mesh);
    opacity: 0.6;
    pointer-events: none;
}

.demo-hero h1 {
    font-size: var(--text-5xl);
    font-weight: var(--weight-bold);
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    margin-bottom: var(--space-4);
}

.demo-hero .lead {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto var(--space-10);
    line-height: var(--leading-relaxed);
}

/* === VIDEO PLAYER === */
.video-section {
    padding: 0 0 var(--space-16);
    position: relative;
}

.video-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4),
                var(--glow-subtle);
}

.video-wrapper::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), transparent 40%, transparent 60%, rgba(124, 92, 252, 0.15));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    z-index: 2;
}

.video-inner {
    position: relative;
}

/* Logo overlay */
.video-logo-overlay {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    z-index: 3;
    pointer-events: none;
    opacity: 0.5;
    transition: opacity var(--duration-normal) var(--ease-in-out);
}

.video-logo-overlay img {
    height: 24px;
    width: auto;
    filter: brightness(0) invert(1);
}

.video-wrapper:hover .video-logo-overlay {
    opacity: 0.3;
}

/* === FEATURE HIGHLIGHTS === */
.demo-features {
    padding: var(--space-16) 0 var(--space-24);
}

.demo-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    max-width: 1000px;
    margin: 0 auto;
}

.demo-feature-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-8);
    text-align: center;
    transition: border-color var(--duration-normal) var(--ease-in-out),
                transform var(--duration-normal) var(--ease-out);
}

.demo-feature-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
}

.demo-feature-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-4);
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(124, 92, 252, 0.1));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.demo-feature-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--accent-primary);
    fill: none;
    stroke-width: 1.5;
}

.demo-feature-card h3 {
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}

.demo-feature-card p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

/* === CTA SECTION === */
.demo-cta {
    padding: var(--space-16) 0 var(--space-24);
    text-align: center;
    position: relative;
}

.demo-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 50%, rgba(0, 212, 255, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.demo-cta h2 {
    font-size: var(--text-3xl);
    font-weight: var(--weight-bold);
    margin-bottom: var(--space-4);
}

.demo-cta p {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .demo-hero {
        padding-top: calc(var(--space-24) + 2rem);
    }

    .demo-hero h1 {
        font-size: var(--text-3xl);
    }

    .demo-hero .lead {
        font-size: var(--text-base);
    }

    .video-wrapper {
        border-radius: var(--radius-md);
        margin: 0 calc(-1 * var(--space-4));
    }

    .demo-features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }

    .demo-feature-card {
        padding: var(--space-6);
    }

    .demo-cta h2 {
        font-size: var(--text-2xl);
    }

    .video-logo-overlay {
        top: var(--space-2);
        right: var(--space-2);
    }

    .video-logo-overlay img {
        height: 18px;
    }
}

@media (max-width: 640px) {
    .video-wrapper {
        border-radius: 0;
        border-left: none;
        border-right: none;
    }

    .video-wrapper::before {
        display: none;
    }
}