/* ============================================================
   CheesCoach Landing Page — Page-Specific Styles
   Uses shared design system: variables.css, components.css, utilities.css
   ============================================================ */


/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    padding-bottom: var(--space-16);
    position: relative;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-16);
    align-items: center;
    position: relative;
    z-index: 1;
    width: 100%;
}

/* App icon with glow */
.hero-icon-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-icon-glow {
    position: relative;
    display: inline-block;
}

.hero-icon-glow::before {
    content: '';
    position: absolute;
    inset: -20px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow-strong) 0%, transparent 70%);
    animation: iconGlow 4s ease-in-out infinite;
    z-index: -1;
}

.hero-icon-img {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-xl);
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.4),
        0 0 60px var(--accent-glow);
    transition: transform var(--transition-bounce);
}

.hero-icon-img:hover {
    transform: scale(1.08) rotate(-3deg);
}

@keyframes iconGlow {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.15);
    }
}

/* Hero content */
.hero-content {
    max-width: 620px;
}

.hero-title {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-5xl));
    font-weight: 800;
    line-height: var(--leading-tight);
    margin-bottom: var(--space-5);
}

.hero-subtitle {
    font-size: clamp(var(--text-base), 1.6vw, var(--text-lg));
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-8);
    max-width: 540px;
}

.hero-badges {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
    margin-bottom: var(--space-8);
}

.hero-ctas {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}


/* ============================================================
   DEMO SECTION
   ============================================================ */
.demo-wrapper {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-12);
    align-items: center;
    max-width: 920px;
    margin: 0 auto;
}

.demo-board-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-5);
}

.demo-board-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.4),
        0 0 40px var(--accent-glow);
    border: 2px solid var(--border);
}

.demo-board-container chess-board {
    --light-color: var(--board-light);
    --dark-color: var(--board-dark);
    --highlight-color: var(--board-highlight);
    display: block;
    width: min(400px, 85vw);
}

.demo-controls {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.demo-status {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--accent-bright);
    min-height: 24px;
}

.demo-info h3 {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.demo-info p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-3);
}

.demo-checklist {
    list-style: none;
    margin-top: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.demo-checklist li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.demo-checklist li svg {
    color: var(--success);
    flex-shrink: 0;
}


/* ============================================================
   SCREENSHOTS CAROUSEL
   ============================================================ */
.screenshots-carousel {
    position: relative;
}

.screenshots-track {
    display: flex;
    gap: var(--space-6);
    overflow-x: auto;
    padding: var(--space-4) 0 var(--space-8);
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.screenshots-track::-webkit-scrollbar {
    height: 6px;
}

.screenshots-track::-webkit-scrollbar-track {
    background: transparent;
}

.screenshots-track::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--radius-full);
}

.screenshot-card {
    flex: 0 0 280px;
    scroll-snap-align: center;
    text-align: center;
    transition: transform var(--transition);
}

.screenshot-card:hover {
    transform: translateY(-4px);
}

.screenshot-img {
    width: 100%;
    height: 480px;
    object-fit: cover;
    object-position: top center;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.screenshot-card:hover .screenshot-img {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow-blue);
}

.screenshot-placeholder {
    height: 480px;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    border: 1px solid var(--border);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.screenshot-placeholder:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow-blue);
}

.screenshot-gradient-1 {
    background: linear-gradient(160deg, var(--bg-secondary) 0%, rgba(79, 143, 247, 0.15) 50%, var(--bg-secondary) 100%);
}

.screenshot-gradient-2 {
    background: linear-gradient(160deg, var(--bg-secondary) 0%, rgba(52, 211, 153, 0.12) 50%, var(--bg-secondary) 100%);
}

.screenshot-gradient-3 {
    background: linear-gradient(160deg, var(--bg-secondary) 0%, rgba(212, 168, 67, 0.12) 50%, var(--bg-secondary) 100%);
}

.screenshot-gradient-4 {
    background: linear-gradient(160deg, var(--bg-secondary) 0%, rgba(129, 140, 248, 0.12) 50%, var(--bg-secondary) 100%);
}

.screenshot-icon-circle {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.screenshot-label {
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--text-primary);
}

.screenshot-sublabel {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.screenshots-nav {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-2);
}


/* ============================================================
   COURSE BANNER
   ============================================================ */
.course-banner-card {
    background:
        linear-gradient(135deg, rgba(212, 168, 67, 0.08), rgba(79, 143, 247, 0.06));
    border: 1px solid var(--gold-glow-strong);
    border-radius: var(--radius-xl);
    padding: var(--space-16) var(--space-12);
    text-align: center;
    position: relative;
    overflow: hidden;
    max-width: 900px;
    margin: 0 auto;
}

/* Subtle chess grid overlay on banner */
.course-banner-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(45deg, rgba(212, 168, 67, 0.03) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(212, 168, 67, 0.03) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(212, 168, 67, 0.03) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(212, 168, 67, 0.03) 75%);
    background-size: 40px 40px;
    background-position: 0 0, 0 20px, 20px -20px, -20px 0px;
    pointer-events: none;
}

.course-banner-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--gold-glow-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-6);
    color: var(--gold-bright);
    position: relative;
}

.course-banner-card h2 {
    font-size: clamp(var(--text-xl), 3vw, var(--text-4xl));
    font-weight: 800;
    margin-bottom: var(--space-4);
    position: relative;
}

.course-banner-card p {
    font-size: clamp(var(--text-sm), 1.4vw, var(--text-base));
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto var(--space-8);
    line-height: var(--leading-relaxed);
    position: relative;
}


/* ============================================================
   AI PROVIDER CARDS — Link Variant
   ============================================================ */
.provider-card-link {
    text-align: center;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.provider-card-link .card-icon {
    margin-bottom: var(--space-3);
}

.provider-card-link .card-title {
    margin-bottom: var(--space-1);
}

.provider-card-link .card-text {
    margin-bottom: var(--space-4);
}

.provider-configure {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.provider-card-link:hover .provider-configure {
    color: var(--provider-color, var(--accent-bright));
    gap: var(--space-3);
}

.provider-configure svg {
    transition: transform var(--transition-fast);
}

.provider-card-link:hover .provider-configure svg {
    transform: translateX(2px);
}


/* ============================================================
   DOWNLOAD SECTION
   ============================================================ */
.download-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}


/* ============================================================
   RESPONSIVE — 1024px
   ============================================================ */
@media (max-width: 1024px) {
    .hero-grid {
        gap: var(--space-10);
    }

    .hero-icon-img {
        width: 100px;
        height: 100px;
    }

    .demo-wrapper {
        gap: var(--space-8);
    }
}


/* ============================================================
   RESPONSIVE — 768px
   ============================================================ */
@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: 120px 0 var(--space-16);
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        text-align: center;
    }

    .hero-icon-wrapper {
        order: -1;
    }

    .hero-icon-img {
        width: 100px;
        height: 100px;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-subtitle {
        max-width: 100%;
    }

    .hero-ctas {
        justify-content: center;
    }

    .hero-badges {
        justify-content: center;
    }

    .demo-wrapper {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .demo-checklist {
        align-items: center;
    }

    .course-banner-card {
        padding: var(--space-10) var(--space-6);
    }

    .screenshot-card {
        flex: 0 0 240px;
    }

    .screenshot-img,
    .screenshot-placeholder {
        height: 420px;
    }
}


/* ============================================================
   RESPONSIVE — 480px
   ============================================================ */
@media (max-width: 480px) {
    .hero {
        padding: 100px 0 var(--space-12);
    }

    .hero-icon-img {
        width: 80px;
        height: 80px;
    }

    .hero-ctas {
        flex-direction: column;
        align-items: center;
    }

    .hero-ctas .btn {
        width: 100%;
    }

    .download-actions {
        flex-direction: column;
        align-items: center;
    }

    .download-actions .btn {
        width: 100%;
        max-width: 280px;
    }

    .course-banner-card {
        padding: var(--space-8) var(--space-4);
    }

    .screenshot-card {
        flex: 0 0 220px;
    }

    .screenshot-img,
    .screenshot-placeholder {
        height: 380px;
    }
}


/* ============================================================
   ACCESSIBILITY
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    .hero-icon-glow::before {
        animation: none;
    }
}