/* ============================================
   PROJECT DETAIL — page-specific styles
   ============================================ */

.project-detail {
    position: relative;
    padding: calc(var(--nav-height) + 56px) 0 110px;
    min-height: 100vh;
}

.project-detail [hidden] {
    display: none !important;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 40px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-muted);
}

.back-link:hover {
    color: var(--color-text);
}

.back-link .icon {
    transition: transform var(--transition);
}

.back-link:hover .icon {
    transform: translateX(-3px);
}

/* — Hero — */
.project-hero {
    --tint: var(--color-accent);
    --tint-dim: var(--color-accent-dim);

    display: grid;
    gap: 28px;
    align-items: center;
    padding-bottom: 48px;
    margin-bottom: 48px;
    border-bottom: 1px solid var(--color-border);
}

.project-hero.cat-visual-studio {
    --tint: var(--color-accent-2);
    --tint-dim: color-mix(in srgb, var(--color-accent-2) 14%, transparent);
}

.project-hero.cat-open-source {
    --tint: var(--color-text);
    --tint-dim: color-mix(in srgb, var(--color-text) 7%, transparent);
}

@media (min-width: 800px) {
    .project-hero {
        grid-template-columns: auto 1fr;
        gap: 48px;
    }
}

.project-hero-media {
    position: relative;
    display: grid;
    place-items: center;
    width: 132px;
    height: 132px;
    border-radius: 34px;
    background: var(--color-surface);
    border: 1px solid var(--color-border-strong);
    box-shadow: 0 30px 70px -25px var(--tint-dim), var(--shadow-card);
}

@media (min-width: 800px) {
    .project-hero-media {
        width: 180px;
        height: 180px;
        border-radius: 44px;
    }
}

.project-hero-media::before {
    content: '';
    position: absolute;
    inset: -40%;
    z-index: -1;
    border-radius: 50%;
    background: radial-gradient(circle, var(--tint-dim), transparent 65%);
}

.project-hero-media img {
    width: 64%;
    height: 64%;
    object-fit: contain;
}

.project-hero-media .work-card-monogram {
    font-size: 4.5rem;
    color: var(--tint);
}

.project-hero .work-card-kicker .icon {
    color: var(--tint);
}

.project-detail-title {
    font-size: clamp(2.4rem, 6vw, 4.5rem);
    letter-spacing: -0.05em;
    margin-bottom: 12px;
}

.project-tagline {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(1.3rem, 2.4vw, 1.75rem);
    line-height: 1.3;
    color: var(--color-text-secondary);
    margin-bottom: 28px;
}

.project-detail-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

/* — Body — */
.project-body {
    display: grid;
    gap: 40px;
    margin-bottom: 64px;
}

@media (min-width: 900px) {
    .project-body {
        grid-template-columns: 1fr 320px;
        gap: 64px;
    }

    .project-body-single {
        grid-template-columns: 1fr;
    }
}

.project-h2 {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--color-muted);
    margin-bottom: 18px;
}

.project-description {
    font-size: 1.2rem;
    line-height: 1.65;
    color: var(--color-text);
    margin-bottom: 32px;
}

.features {
    display: grid;
    gap: 12px;
}

@media (min-width: 640px) {
    .features {
        grid-template-columns: repeat(2, 1fr);
    }
}

.feature {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 20px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-weight: 500;
    color: var(--color-text);
}

.feature-num {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.6rem;
    line-height: 1;
    color: var(--color-accent);
}

.project-aside {
    align-self: start;
    padding: 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}

.facts .fact {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
}

.facts .fact:first-child {
    padding-top: 0;
}

.facts dt {
    color: var(--color-muted);
}

.facts dd {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
    color: var(--color-text);
    text-align: right;
}

.aside-title {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--color-muted);
    margin: 24px 0 12px;
}

.project-topics {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* — README — */
.readme-section {
    margin-bottom: 72px;
}

.readme-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    color: var(--color-muted);
}

.readme-header h2 {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--color-muted);
}

.readme-content {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    line-height: 1.8;
    overflow-wrap: anywhere;
}

@media (min-width: 800px) {
    .readme-content {
        padding: 40px;
    }
}

.readme-content h1,
.readme-content h2,
.readme-content h3,
.readme-content h4 {
    margin-top: 32px;
    margin-bottom: 14px;
}

.readme-content h1 { font-size: 1.9rem; }
.readme-content h2 { font-size: 1.45rem; padding-bottom: 8px; border-bottom: 1px solid var(--color-border); }
.readme-content h3 { font-size: 1.15rem; }

.readme-content h1:first-child,
.readme-content h2:first-child {
    margin-top: 0;
}

.readme-content p {
    margin-bottom: 16px;
    max-width: none;
}

.readme-content pre {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 20px;
    overflow-x: auto;
    margin: 16px 0;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.6;
}

.readme-content code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--code-bg);
    padding: 2px 6px;
    border-radius: 4px;
}

.readme-content pre code {
    background: none;
    padding: 0;
}

.readme-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.readme-content ul,
.readme-content ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.readme-content li {
    margin-bottom: 6px;
    color: var(--color-text-secondary);
}

.readme-content ul li { list-style: disc; }
.readme-content ol li { list-style: decimal; }

.readme-content img {
    max-width: 100%;
    border-radius: var(--radius-sm);
    margin: 16px 0;
}

.readme-content blockquote {
    border-left: 3px solid var(--color-accent);
    padding: 12px 20px;
    margin: 16px 0;
    background: var(--color-accent-dim);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--color-text-secondary);
}

/* — Related — */
.related {
    padding-top: 48px;
    border-top: 1px solid var(--color-border);
}

/* — Loading — */
.project-loading {
    text-align: center;
    padding: 80px 20px;
}

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 2px solid var(--color-border-strong);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

.project-loading p {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-muted);
    max-width: none;
}

/* — Screenshot gallery —
   A native scroll-snap track: swipe on touch, arrow buttons on desktop
   (js/project.js), and focusable so arrow keys scroll it too. */
.gallery {
    margin-bottom: 64px;
}

.gallery-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.gallery-head .project-h2 {
    margin-bottom: 0;
}

.gallery-controls {
    display: flex;
    gap: 8px;
}

.gallery-btn {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border-strong);
    border-radius: 50%;
    cursor: pointer;
    transition: border-color var(--transition), color var(--transition);
}

.gallery-btn:hover {
    color: var(--color-accent);
    border-color: var(--color-border-hover);
}

.gallery-track {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 88%;
    gap: 16px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: 0;
    padding-bottom: 12px;
    scrollbar-width: thin;
}

@media (min-width: 900px) {
    .gallery-track {
        grid-auto-columns: 72%;
    }
}

.gallery-track.is-single {
    grid-auto-columns: 100%;
    max-width: 960px;
}

.shot {
    scroll-snap-align: start;
    margin: 0;
}

.shot a {
    display: block;
    overflow: hidden;
    border-radius: var(--radius);
    border: 1px solid var(--color-border-strong);
    background: var(--color-surface-2);
    box-shadow: var(--shadow-card);
}

.shot img {
    width: 100%;
    height: auto;
    transition: transform 0.8s var(--ease);
}

.shot a:hover img {
    transform: scale(1.02);
}

.shot figcaption {
    display: flex;
    gap: 10px;
    margin-top: 12px;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.shot figcaption span {
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--color-accent);
}

/* — How it works — */
.how {
    margin-bottom: 64px;
}

.steps {
    display: grid;
    gap: 12px;
    counter-reset: none;
}

@media (min-width: 640px) {
    .steps {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .steps {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
}

.step {
    padding: 22px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}

.step-num {
    display: block;
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 2rem;
    line-height: 1;
    color: var(--color-accent);
    margin-bottom: 18px;
}

.step h3 {
    font-size: 1.05rem;
    margin-bottom: 6px;
}

.step p {
    font-size: 0.92rem;
}

/* — Support & privacy strip — */
.help-strip {
    display: grid;
    gap: 12px;
    margin-bottom: 64px;
}

@media (min-width: 800px) {
    .help-strip {
        grid-template-columns: 1fr 1fr;
    }
}

.help-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 22px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    overflow: hidden;
    transition: border-color var(--transition), transform 0.5s var(--ease);
}

.help-card:hover {
    color: var(--color-text);
    border-color: var(--color-border-hover);
    transform: translateY(-3px);
}

.help-card > .icon:first-child {
    color: var(--color-accent);
}

.help-card > .icon:last-child {
    margin-left: auto;
    flex-shrink: 0;
    color: var(--color-muted);
}

.help-card > span {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.help-card strong {
    font-weight: 600;
}

.help-card span span {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
}