/* ============================================
   HEIC Samples Gallery Styles
   Tokyo Night Palette | Premium Design
   ============================================ */

/* ============================================
   Hero Section
   ============================================ */
.samples-hero {
    text-align: center;
    padding: var(--space-2xl) 0 var(--space-lg);
    margin-bottom: 0;
    animation: heroReveal 0.8s var(--ease-out-expo) 0.2s both;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: var(--accent-green-muted);
    color: var(--accent-green);
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    margin-bottom: var(--space-lg);
}

.samples-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
    color: var(--text-bright);
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, var(--text-bright) 0%, var(--accent-coral) 50%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.samples-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto var(--space-lg);
    line-height: 1.7;
}

.samples-stats {
    display: inline-flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-md) var(--space-xl);
    background: var(--bg-surface);
    border: 1.5px solid var(--border-subtle);
    border-radius: var(--radius-xl);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2xs);
}

.stat-value {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-coral);
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-default);
}

/* ============================================
   Filter Tabs
   ============================================ */
.samples-filters {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
    animation: heroReveal 0.8s var(--ease-out-expo) 0.4s both;
}

.filter-btn {
    padding: var(--space-sm) var(--space-lg);
    background: var(--bg-surface);
    color: var(--text-secondary);
    border: 1.5px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.filter-btn:hover {
    border-color: var(--border-default);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--accent-coral);
    color: var(--bg-void);
    border-color: var(--accent-coral);
}

/* ============================================
   Gallery Grid
   ============================================ */
.samples-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
}

/* ============================================
   Sample Card
   ============================================ */
.sample-card {
    background: var(--bg-surface);
    border-radius: var(--radius-xl);
    border: 1.5px solid var(--border-subtle);
    overflow: hidden;
    transition: all var(--transition-base);
    animation: cardReveal 0.6s var(--ease-out-expo) both;
    display: flex;
    flex-direction: column;
}

.sample-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-coral);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(247, 118, 142, 0.15);
}

/* Stagger animation for cards */
.sample-card:nth-child(1) {
    animation-delay: 0.1s;
}

.sample-card:nth-child(2) {
    animation-delay: 0.15s;
}

.sample-card:nth-child(3) {
    animation-delay: 0.2s;
}

.sample-card:nth-child(4) {
    animation-delay: 0.25s;
}

.sample-card:nth-child(5) {
    animation-delay: 0.3s;
}

.sample-card:nth-child(6) {
    animation-delay: 0.35s;
}

.sample-card:nth-child(7) {
    animation-delay: 0.4s;
}

.sample-card:nth-child(8) {
    animation-delay: 0.45s;
}

@keyframes cardReveal {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Card Preview */
.sample-preview {
    width: 100%;
    height: 200px;
    background: var(--bg-deep);
    position: relative;
    overflow: hidden;
}

.sample-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-out-expo);
}

.sample-card:hover .sample-img {
    transform: scale(1.05);
}

.sample-preview::before {
    display: none;
}

.preview-badge {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    padding: var(--space-2xs) var(--space-sm);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--accent-cyan);
    text-transform: uppercase;
    z-index: 1;
}

/* Card Content */
.sample-content {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.sample-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: var(--space-xs);
    line-height: 1.3;
}

.sample-description {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: var(--space-md);
}

/* Metadata Grid */
.sample-meta {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.meta-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.meta-value {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Fingerprint Section */
.sample-fingerprint {
    background: var(--bg-deep);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    overflow: hidden;
}

.fingerprint-toggle {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.fingerprint-toggle:hover {
    color: var(--text-primary);
    background: var(--bg-elevated);
}

.fingerprint-toggle-icon {
    transition: transform var(--transition-base);
}

.sample-fingerprint.open .fingerprint-toggle-icon {
    transform: rotate(180deg);
}

.fingerprint-content {
    display: none;
    padding: 0 var(--space-md) var(--space-md);
}

.sample-fingerprint.open .fingerprint-content {
    display: block;
}

.fingerprint-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: var(--space-sm);
}

.fingerprint-row:last-child {
    margin-bottom: 0;
}

.fingerprint-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--accent-cyan);
    text-transform: uppercase;
}

.fingerprint-hash {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    word-break: break-all;
    background: var(--bg-surface);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
    user-select: all;
    cursor: text;
}

.fingerprint-hash:hover {
    color: var(--text-primary);
    border-color: var(--accent-cyan);
}

/* Download Button */
.sample-download {
    width: 100%;
    padding: var(--space-sm) var(--space-lg);
    background: linear-gradient(135deg, var(--accent-coral) 0%, #ff6b8a 100%);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    transition: all var(--transition-base);
    text-decoration: none;
    margin-top: auto;
}

.sample-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(247, 118, 142, 0.4);
}

.sample-download:active {
    transform: translateY(0);
}

/* ============================================
   About Section
   ============================================ */
.samples-about {
    max-width: 1000px;
    margin: 0 auto var(--space-3xl);
    padding: var(--space-2xl);
    background: var(--bg-surface);
    border-radius: var(--radius-xl);
    border: 1.5px solid var(--border-subtle);
}

.samples-about h2 {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.samples-about>p {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-2xl);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
}

.about-feature {
    text-align: center;
    padding: var(--space-lg);
    background: var(--bg-deep);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.about-feature:hover {
    transform: translateY(-4px);
    background: var(--bg-elevated);
}

.feature-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-coral-muted);
    border-radius: var(--radius-lg);
    color: var(--accent-coral);
}

.about-feature h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: var(--space-xs);
}

.about-feature p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ============================================
   CTA Section
   ============================================ */
.samples-cta {
    text-align: center;
    padding: var(--space-3xl) var(--space-xl);
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-elevated) 100%);
    border-radius: var(--radius-xl);
    border: 1.5px solid var(--border-subtle);
    margin-bottom: var(--space-3xl);
}

.samples-cta h2 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    font-weight: 800;
    color: var(--text-bright);
    margin-bottom: var(--space-sm);
}

.samples-cta p {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.btn-lg {
    padding: var(--space-md) var(--space-2xl);
    font-size: 1.1rem;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: linear-gradient(135deg, var(--accent-coral) 0%, #ff6b8a 100%);
    color: #fff;
    border: none;
    border-radius: var(--radius-lg);
    font-family: var(--font-display);
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(247, 118, 142, 0.4);
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 768px) {
    .samples-stats {
        flex-direction: column;
        gap: var(--space-md);
        padding: var(--space-lg);
    }

    .stat-divider {
        width: 60px;
        height: 1px;
    }

    .samples-filters {
        padding: 0 var(--space-md);
    }

    .filter-btn {
        padding: var(--space-xs) var(--space-md);
        font-size: 0.85rem;
    }

    .samples-gallery {
        grid-template-columns: 1fr;
        padding: 0;
    }

    .sample-preview {
        height: 160px;
    }

    .about-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .samples-hero {
        padding: var(--space-2xl) var(--space-md);
    }

    .samples-subtitle {
        font-size: 0.95rem;
        padding: 0 var(--space-sm);
    }

    .sample-meta {
        grid-template-columns: 1fr;
    }
}