/* Portfolio (tonsa_case archive/single) — Stage 12 Batch 1. Enqueued only on
   Portfolio routes (see functions.php). Composed from the shared component
   layer where possible (.tonsa-section, .tonsa-route-frame, .tonsa-eyebrow,
   .tonsa-button, .tonsa-cta-banner, .tonsa-card-grid, .tonsa-text-link); the
   classes below are new because Портфолио.dc.html/Проект.dc.html introduce a
   draggable/swipeable card-rail pattern with no existing analog. */

.tonsa-portfolio-hero__title { max-width: none; margin: 1.35rem 0 0; color: var(--color-ink); font-size: clamp(1.9375rem, 5vw, 3.125rem); font-weight: 600; line-height: 1.08; letter-spacing: -.03em; text-wrap: balance; }
.tonsa-portfolio-hero__lede { max-width: 37.5rem; margin: 1rem 0 0; color: var(--color-ink-muted); font-size: clamp(1rem, 1.6vw, 1.125rem); letter-spacing: -.01em; line-height: 1.55; }
@media (min-width: 768px) { .tonsa-portfolio-hero__lede { max-width: none; } }
.tonsa-portfolio-hero { padding-bottom: var(--space-lg); }
.tonsa-portfolio-hero + .tonsa-portfolio-carousel-section { padding-top: var(--space-lg); }

/* Card rail: horizontal scroll-snap container. Native overflow-x scrolling
   gives touch swipe for free; assets/js/portfolio-carousel.js adds arrow/dot
   controls and desktop click-drag, matching the source's pointer-drag intent
   without reimplementing translate-based dragging by hand. */
.tonsa-portfolio-carousel { position: relative; }
.port-scroller { overflow-x: auto; overflow-y: hidden; scroll-snap-type: x proximity; scrollbar-width: none; -ms-overflow-style: none; cursor: grab; touch-action: pan-x pan-y; }
.port-scroller[data-tonsa-carousel-mask="right"], .media-scroller[data-tonsa-carousel-mask="right"], .tonsa-article-content figure[data-tonsa-scroll-mask="right"] { mask-image: linear-gradient(to right, black 0 84%, transparent 100%); -webkit-mask-image: linear-gradient(to right, black 0 84%, transparent 100%); }
.port-scroller[data-tonsa-carousel-mask="both"], .media-scroller[data-tonsa-carousel-mask="both"], .tonsa-article-content figure[data-tonsa-scroll-mask="both"] { mask-image: linear-gradient(to right, transparent 0, black 16%, black 84%, transparent 100%); -webkit-mask-image: linear-gradient(to right, transparent 0, black 16%, black 84%, transparent 100%); }
.port-scroller[data-tonsa-carousel-mask="left"], .media-scroller[data-tonsa-carousel-mask="left"], .tonsa-article-content figure[data-tonsa-scroll-mask="left"] { mask-image: linear-gradient(to right, transparent 0, black 16%, black 100%); -webkit-mask-image: linear-gradient(to right, transparent 0, black 16%, black 100%); }
@media (min-width: 768px) {
  [data-tonsa-carousel-mode="port-card"][data-tonsa-carousel-active="1"] .port-scroller,
  [data-tonsa-carousel-mode="media-slide"][data-tonsa-carousel-active="1"] .media-scroller { scroll-snap-type: none; mask-image: linear-gradient(to right, transparent 0, black 27%, black 73%, transparent 100%); -webkit-mask-image: linear-gradient(to right, transparent 0, black 27%, black 73%, transparent 100%); }
  [data-tonsa-carousel-mode="port-card"][data-tonsa-carousel-programmatic] .port-scroller,
  [data-tonsa-carousel-mode="media-slide"][data-tonsa-carousel-programmatic] .media-scroller { scroll-snap-type: none; }
  [data-tonsa-carousel-mode][data-tonsa-carousel-two-items] [data-tonsa-carousel-track] > :first-child::after { content: ''; flex: 0 0 var(--tonsa-carousel-center-gutter); }
}
.port-scroller::-webkit-scrollbar { display: none; }
.port-scroller[data-tonsa-dragging] { cursor: grabbing; scroll-snap-type: none; user-select: none; }
.tonsa-portfolio-carousel__row { display: flex; gap: 20px; padding-bottom: 2px; }
.tonsa-card-grid--scroller { display: flex; gap: var(--space-md); }
.tonsa-card-grid--scroller .tonsa-card { flex: 0 0 min(560px, 78vw); scroll-snap-align: start; }
.port-card { flex: 0 0 min(560px, 78vw); height: 480px; position: relative; display: block; scroll-snap-align: start; border-radius: var(--radius-glass-panel); border: 1px solid var(--glass-border); overflow: hidden; box-shadow: none; text-decoration: none; transition: border-color var(--duration-standard) var(--ease-standard), background var(--duration-standard) var(--ease-standard); }
.port-card--gallery { background: transparent; box-shadow: none; }
.port-card--preview { box-shadow: var(--shadow-glass); }
.port-card:hover { border-color: var(--glass-border-strong); }
.port-card__media { position: absolute; z-index: 0; inset: 0; width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius-glass-panel); }
.port-card__scrim { position: absolute; z-index: 1; inset: 0; background: linear-gradient(180deg, transparent 32%, rgba(7, 9, 9, .88) 100%); pointer-events: none; }
.port-card--gallery .port-card__panel, .port-card--preview .port-card__panel { position: absolute; z-index: 2; left: 16px; right: 16px; bottom: 16px; padding: 22px; background: var(--glass-surface-2); border: 1px solid var(--glass-border); -webkit-backdrop-filter: blur(var(--glass-blur)); backdrop-filter: blur(var(--glass-blur)); border-radius: var(--radius-glass-card); }
/* The desktop panel must blur the project image, not an opaque dimmer. The
   mobile scrim remains unchanged because its compact composition is already
   approved by the owner. */
@media (min-width: 768px) {
  .port-card--gallery .port-card__scrim { background: linear-gradient(180deg, transparent 32%, rgba(7, 9, 9, .48) 100%); }
}
.port-card__cat { display: block; font-size: 12px; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: var(--color-primary); }
.port-card__title { margin: 10px 0 0; color: #fff; font-family: var(--font-display); font-size: 22px; font-weight: 600; line-height: 1.3; letter-spacing: -.015em; text-wrap: pretty; }
.port-card__desc { margin: 8px 0 0; color: rgb(255 255 255 / 75%); font-size: 14.5px; line-height: 1.55; }
.port-card__cta { display: flex; align-items: center; justify-content: flex-end; gap: 10px; margin-top: 18px; }
.port-cta-label { font-size: 13px; font-weight: 500; color: #fff; transition: color var(--duration-standard) var(--ease-standard); }
a.port-card:hover .port-cta-label { color: var(--color-primary); }
.post-arrow { width: 34px; height: 34px; flex: none; border-radius: 50%; background: var(--glass-surface-2); border: 1px solid var(--glass-border); display: inline-flex; align-items: center; justify-content: center; color: var(--color-ink); transition: background var(--duration-standard) var(--ease-standard), transform var(--duration-standard) var(--ease-standard); }
.port-card:hover .post-arrow { background: var(--color-primary); color: var(--color-on-primary); transform: translateX(2px); }

.port-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; border-radius: 50%; background: var(--glass-surface-2); border: 1px solid var(--glass-border); display: inline-flex; align-items: center; justify-content: center; color: var(--color-ink); cursor: pointer; z-index: 5; -webkit-backdrop-filter: blur(var(--glass-blur)); backdrop-filter: blur(var(--glass-blur)); transition: background var(--duration-standard) var(--ease-standard), color var(--duration-standard) var(--ease-standard); }
.port-arrow:hover, .port-arrow:focus-visible { background: var(--color-primary); color: var(--color-on-primary); border-color: var(--color-primary); }
.port-arrow--prev { left: -8px; }
.port-arrow--next { right: -8px; }
.tonsa-portfolio-carousel__dots { display: flex; justify-content: center; gap: 0; margin-top: 0; }
/* The visible mark stays at the source's 8px size; the button itself is a
   44px target so pointer and keyboard users get the same control contract. */
.port-dot { position: relative; width: 44px; height: 44px; flex: 0 0 44px; border: none; background: transparent; cursor: pointer; padding: 0; }
.port-dot::before { content: ''; position: absolute; top: 50%; left: 50%; width: 8px; height: 8px; border-radius: 50%; transform: translate(-50%, -50%); background: var(--glass-border-strong); transition: background var(--duration-standard) var(--ease-standard), width var(--duration-standard) var(--ease-standard), border-radius var(--duration-standard) var(--ease-standard); }
.port-dot-active::before { width: 22px; border-radius: 4px; background: var(--color-primary); }
.port-dot:focus-visible { outline: 2px solid var(--color-primary); outline-offset: -4px; border-radius: 50%; }
.tonsa-portfolio-empty { color: var(--color-ink-muted); }

/* Case detail */
.tonsa-portfolio-case__header-frame { max-width: 51.25rem; }
.tonsa-portfolio-case__back { display: flex; width: fit-content; align-items: center; gap: 8px; margin-bottom: 2.5rem; font-size: .875rem; }
.tonsa-portfolio-case__title { max-width: none; margin: 1.25rem 0 0; color: var(--color-ink); font-size: clamp(1.75rem, 4.4vw, 2.75rem); font-weight: 600; line-height: 1.15; letter-spacing: -.03em; text-wrap: balance; }
.tonsa-portfolio-case__intro { max-width: 40rem; margin: 1rem 0 0; color: var(--color-ink-muted); font-size: 1.0625rem; line-height: 1.6; }
.tonsa-portfolio-case__placeholder { color: var(--color-ink-muted); font-style: italic; }
.tonsa-portfolio-case__header { padding-bottom: var(--space-xl); }
.tonsa-portfolio-case__ambient-scene { padding: clamp(28px, 4vw, 40px) clamp(20px, 5vw, 40px) 0; }
.tonsa-portfolio-case__gallery-section { padding-top: var(--space-lg); }

.tonsa-portfolio-case__gallery { position: relative; }
.media-scroller { overflow-x: auto; overflow-y: hidden; scroll-snap-type: x proximity; scrollbar-width: none; -ms-overflow-style: none; cursor: grab; touch-action: pan-x pan-y; }
.media-scroller::-webkit-scrollbar { display: none; }
.media-scroller[data-tonsa-dragging] { cursor: grabbing; scroll-snap-type: none; user-select: none; }
.tonsa-portfolio-case__gallery-row { display: flex; align-items: stretch; gap: 16px; }
.media-slide { flex: 0 0 min(900px, 80vw); aspect-ratio: 4 / 3; scroll-snap-align: start; }
.media-info-card { min-height: 100%; box-sizing: border-box; display: flex; flex-direction: column; justify-content: center; overflow: visible; padding: clamp(24px, 3vw, 36px); border-radius: var(--radius-glass-panel); background: var(--glass-surface-1); border: 1px solid var(--glass-border); -webkit-backdrop-filter: blur(var(--glass-blur)); backdrop-filter: blur(var(--glass-blur)); box-shadow: var(--shadow-glass); }
.media-info-card h3 { margin: 0; color: var(--color-ink); font-family: var(--font-display); font-size: 20px; font-weight: 600; line-height: 1.3; letter-spacing: -.015em; }
.media-info-card h3 ~ h3 { margin-top: 24px; }
.media-info-card p { margin: 12px 0 0; color: var(--color-ink-muted); font-size: 15px; line-height: 1.6; }
.tonsa-portfolio-case__gallery-image { display: block; width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius-glass-panel); border: 1px solid var(--glass-border); }
.tonsa-portfolio-case__metrics { margin-top: auto; padding-top: 28px; }
.tonsa-portfolio-case__metrics-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px 24px; margin-top: 16px; }
.tonsa-portfolio-case__metric-value { font-family: var(--font-display); font-size: 26px; font-weight: 700; line-height: 1; letter-spacing: -.02em; color: var(--color-primary); }
.tonsa-portfolio-case__metric-label { margin-top: 5px; color: var(--color-ink-muted); font-size: 12.5px; line-height: 1.4; }
.tonsa-portfolio-case__gallery-nav { display: flex; align-items: center; justify-content: center; gap: 20px; margin-top: 20px; }
.media-arrow { width: 44px; height: 44px; border-radius: 50%; background: var(--glass-surface-2); border: 1px solid var(--glass-border); display: inline-flex; align-items: center; justify-content: center; color: var(--color-ink); cursor: pointer; -webkit-backdrop-filter: blur(var(--glass-blur)); backdrop-filter: blur(var(--glass-blur)); transition: background var(--duration-standard) var(--ease-standard), color var(--duration-standard) var(--ease-standard); }
.media-arrow:hover, .media-arrow:focus-visible { background: var(--color-primary); color: var(--color-on-primary); border-color: var(--color-primary); }
.tonsa-portfolio-case__gallery-dots { display: flex; gap: 0; }

.tonsa-portfolio-case__cta-frame, .tonsa-portfolio-case__related-frame { max-width: 62.5rem; }
.tonsa-portfolio-case__related-frame { max-width: 62.5rem; }
.tonsa-portfolio-case__related-heading { margin: 0 0 18px; color: var(--color-ink); font-family: var(--font-display); font-size: 20px; font-weight: 600; line-height: 1.3; letter-spacing: -.015em; }
.tonsa-portfolio-case__related-carousel .tonsa-card-grid { display: flex; gap: var(--space-md); }
.port-card--related { height: 360px; }
.port-card__title--related { margin: 10px 0 0; color: var(--color-ink); font-size: 18px; }
.tonsa-portfolio-case__cta { padding-bottom: var(--space-xxl); }
.tonsa-portfolio-case__cta + .tonsa-portfolio-case__related { padding-top: var(--space-lg); }
/* Portfolio-detail CTA uses the existing headline alias: 26px at desktop,
   preserving the source card's single-line hierarchy without widening it. */
.tonsa-portfolio-case__cta .tonsa-cta-banner h2 { font-size: var(--text-headline-size); }

@media (max-width: 767px) {
  .port-card { flex-basis: 88vw; height: 420px; }
  .media-slide { flex-basis: 88vw; }
  /* An 88vw card leaves too little route-frame gutter for a 44px arrow
     button beside it without overlapping the card — rely on native touch
     swipe (already fully functional via overflow-x:auto + scroll-snap) and
     the dot pagination instead, matching the source's own mobile note
     ("Листайте карточки... свайпом на телефоне"). */
  .port-arrow, .media-arrow { display: none; }
  .port-scroller, .media-scroller { mask-image: none; -webkit-mask-image: none; }
  .tonsa-card-grid--scroller .tonsa-card { flex-basis: 88vw; }
  .tonsa-portfolio-case__related-carousel .tonsa-card-grid { display: flex; gap: var(--space-md); }
  .tonsa-portfolio-case__related-carousel .port-card--related { flex: 0 0 88vw; height: 360px; }
}