/* ============================================================
   Portfolio (index + case study detail) styles
   Ports of src/pages/{en,ar}/portfolio/*.astro
   ============================================================ */

/* ---------- shared shell ---------- */
.portfolio-page,
.case-study-page {
  --page-max: 1320px;
  --card-border: color-mix(in oklab, var(--color-text) 12%, transparent);
  padding-block: 1.4rem 4rem;
}
.portfolio-shell,
.case-shell {
  width: min(100% - 2rem, var(--page-max));
  margin-inline: auto;
}

/* ---------- index: hero ---------- */
.portfolio-hero { padding: 1.8rem 0 1.2rem; max-width: 980px; }
.portfolio-eyebrow {
  display: inline-flex; margin-bottom: 0.9rem; color: var(--color-primary);
  font-size: 0.86rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
}
.portfolio-hero h1 {
  margin: 0; color: var(--color-text);
  font-size: clamp(2.6rem, 7vw, 6rem); line-height: 0.92; letter-spacing: -0.07em; max-width: 11ch;
}
.portfolio-hero p { margin: 1rem 0 0; max-width: 68ch; color: var(--color-text-muted); font-size: 1.04rem; line-height: 1.85; }
.portfolio-page[dir='rtl'] .portfolio-eyebrow { letter-spacing: 0.08em; }
.portfolio-page[dir='rtl'] .portfolio-hero h1 { line-height: 1.05; letter-spacing: -0.04em; }
.portfolio-page[dir='rtl'] .portfolio-hero p { line-height: 1.95; }

/* ---------- index: filters ---------- */
.portfolio-filters { display: flex; flex-wrap: wrap; gap: 0.65rem; margin-top: 1.4rem; }
.portfolio-filter {
  display: inline-flex; align-items: center; justify-content: center; min-height: 40px;
  padding: 0.45rem 1rem; border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--color-text) 18%, transparent);
  background: color-mix(in oklab, var(--color-surface-2) 88%, var(--color-text) 12%);
  color: var(--color-text); font-size: 0.92rem; font-weight: 600; cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
  box-shadow: inset 0 1px 0 color-mix(in oklab, white 18%, transparent);
}
.portfolio-filter:hover {
  background: color-mix(in oklab, var(--color-surface-2) 74%, var(--color-primary) 26%);
  border-color: color-mix(in oklab, var(--color-primary) 46%, var(--card-border));
  color: var(--color-text); transform: translateY(-1px);
}
.portfolio-filter.is-active {
  background: var(--color-primary); color: var(--color-text-inverse); border-color: var(--color-primary);
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--color-primary) 65%, transparent),
    0 10px 24px color-mix(in oklab, var(--color-primary) 22%, transparent);
}
.portfolio-filter.is-active::before {
  content: '✓'; margin-inline-end: 0.35rem; font-size: 0.82rem;
}
.portfolio-filter:focus-visible { outline: 3px solid #ffd54a; outline-offset: 3px; }
.portfolio-filter:active { transform: translateY(0); }

/* ---------- index: grid ---------- */
.cases-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; margin-top: 2rem; }
.case-card {
  display: grid; gap: 0; text-decoration: none; border-radius: 1.65rem; overflow: hidden;
  border: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent);
  background: color-mix(in oklab, var(--color-surface) 97%, var(--color-text) 3%);
  box-shadow: var(--shadow-lg);
  transition: transform 220ms ease, border-color 220ms ease, opacity 220ms ease;
}
.case-card[dir] { opacity: 1; }
.case-card.is-hide-init { opacity: 0; transform: translateY(24px); }
.case-card.is-ready { animation: cardIn 560ms cubic-bezier(0.16, 1, 0.3, 1) forwards; animation-delay: calc(var(--stagger, 0) * 90ms); }
.case-card:hover { transform: translateY(-4px); border-color: color-mix(in oklab, var(--color-primary) 28%, var(--card-border)); }
.case-card.is-hidden { display: none; }
.case-card__visual { position: relative; min-height: 360px; overflow: hidden; }
.case-card__visual img { width: 100%; height: 100%; object-fit: cover; display: block; }
.case-card__body {
  padding: 1.25rem 1.25rem 1.35rem;
  background: linear-gradient(180deg, color-mix(in oklab, var(--color-surface) 96%, var(--color-primary) 4%), var(--color-surface));
}
.case-card__title { margin: 0; color: var(--color-text); font-size: clamp(1.45rem, 2vw, 2rem); line-height: 1.08; letter-spacing: -0.05em; }
.case-card__excerpt { margin: 0.7rem 0 0; color: var(--color-text-muted); font-size: 0.98rem; line-height: 1.8; }
.case-card__tags { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 1rem; }
.case-card__tags span {
  display: inline-flex; align-items: center; min-height: 28px; padding: 0.2rem 0.65rem; border-radius: 999px;
  background: color-mix(in oklab, var(--color-text) 8%, transparent); color: var(--color-text-muted); font-size: 0.8rem;
}
.portfolio-page[dir='rtl'] .case-card__title { line-height: 1.25; letter-spacing: -0.03em; }
.portfolio-page[dir='rtl'] .case-card__excerpt { line-height: 1.95; }

/* ---------- index: CTA / availability / footer ---------- */
.portfolio-cta {
  margin-top: 2rem; border-radius: 1.8rem; padding: 1.6rem 1.5rem;
  background: linear-gradient(180deg, color-mix(in oklab, #101010 86%, var(--color-primary) 14%), #101010);
  border: 1px solid color-mix(in oklab, white 12%, transparent);
  box-shadow: var(--shadow-lg); color: #f5f5f2;
}
.portfolio-cta p { margin: 0; max-width: 72ch; color: rgba(255,255,255,0.88); line-height: 1.8; }
.portfolio-cta a {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px;
  margin-top: 1rem; padding: 0.8rem 1.2rem; border-radius: 999px;
  background: #ffffff; color: #0f1115; text-decoration: none; font-weight: 800; letter-spacing: -0.02em;
  border: 1px solid rgba(255,255,255,0.92);
  box-shadow: 0 10px 24px rgba(0,0,0,0.22), inset 0 1px 0 rgba(255,255,255,0.8);
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease, color 180ms ease;
}
.portfolio-cta a:hover {
  transform: translateY(-1px); background: color-mix(in oklab, white 88%, var(--color-primary) 12%); color: #081116;
  box-shadow: 0 14px 30px rgba(0,0,0,0.28), 0 0 0 1px color-mix(in oklab, var(--color-primary) 24%, transparent);
}
.portfolio-cta a:focus-visible { outline: 3px solid #ffd54a; outline-offset: 4px; }
.portfolio-cta a:active { transform: translateY(0); }

.availability { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 2rem; padding: 1.5rem 0 0.5rem; }
.availability__badge {
  display: inline-flex; align-items: center; min-height: 30px; padding: 0.2rem 0.7rem; border-radius: 999px;
  background: color-mix(in oklab, var(--color-primary) 14%, var(--color-surface)); color: var(--color-primary);
  font-size: 0.82rem; font-weight: 700;
}
.availability h2 { margin: 0.7rem 0 0; font-size: clamp(1.8rem, 3vw, 3rem); line-height: 1; letter-spacing: -0.05em; }
.availability p { margin: 0.7rem 0 0; color: var(--color-text-muted); }
.availability__button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0.8rem 1.25rem;
  border-radius: 999px; background: var(--color-primary); color: var(--color-text-inverse); text-decoration: none;
  white-space: nowrap; font-weight: 800; letter-spacing: -0.02em;
  border: 1px solid color-mix(in oklab, var(--color-primary) 78%, black 22%);
  box-shadow: 0 10px 24px color-mix(in oklab, var(--color-primary) 26%, transparent),
    inset 0 1px 0 color-mix(in oklab, white 24%, transparent);
  transition: transform 180ms ease, background-color 180ms ease, color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}
.availability__button:hover {
  transform: translateY(-1px); background: color-mix(in oklab, var(--color-primary) 88%, white 12%);
  border-color: color-mix(in oklab, var(--color-primary) 65%, black 35%);
  box-shadow: 0 14px 30px color-mix(in oklab, var(--color-primary) 30%, transparent),
    0 0 0 1px color-mix(in oklab, var(--color-primary) 30%, transparent);
}
.availability__button:active { transform: translateY(0); box-shadow: 0 8px 18px color-mix(in oklab, var(--color-primary) 22%, transparent), inset 0 2px 4px color-mix(in oklab, black 16%, transparent); }
.availability__button:focus-visible { outline: 3px solid #ffffff; outline-offset: 2px; box-shadow: 0 0 0 6px #111111, 0 10px 24px color-mix(in oklab, var(--color-primary) 26%, transparent); }

.portfolio-footer { position: relative; margin-top: 2rem; padding-top: 2rem; border-top: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent); }
.portfolio-footer__watermark { font-size: clamp(3rem, 11vw, 10rem); line-height: 0.9; letter-spacing: -0.08em; color: color-mix(in oklab, var(--color-text) 8%, transparent); user-select: none; }

/* ---------- detail: header ---------- */
.back-link { display: inline-flex; margin-bottom: 1.25rem; color: var(--color-text-muted); text-decoration: none; }
.back-link:hover { color: var(--color-text); }
.back-link:focus-visible,
.screens__button:focus-visible,
.screen-card__button:focus-visible,
.project-nav__card:focus-visible,
.lightbox__button:focus-visible { outline: 3px solid #ffd54a; outline-offset: 3px; }

.case-tags, .case-metrics { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.case-tags span, .case-metrics span {
  display: inline-flex; align-items: center; min-height: 32px; padding: 0.2rem 0.75rem; border-radius: 999px;
  border: 1px solid var(--card-border);
  background: color-mix(in oklab, var(--color-surface) 96%, var(--color-primary) 4%);
  color: var(--color-text-muted); font-size: 0.86rem;
}
.case-title { margin: 1rem 0 0; font-size: clamp(2.4rem, 6vw, 5.3rem); line-height: 0.94; letter-spacing: -0.07em; max-width: 13ch; }
.case-summary { margin: 1rem 0 0; max-width: 68ch; color: var(--color-text-muted); font-size: 1.02rem; line-height: 1.9; }
.case-metrics { margin-top: 1.1rem; }
.case-study-page[dir='rtl'] .case-title { line-height: 1.05; letter-spacing: -0.04em; max-width: 16ch; }
.case-study-page[dir='rtl'] .case-summary { line-height: 1.95; }

.case-meta { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent); }
.case-meta__item small { display: block; margin-bottom: 0.35rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.08em; }
.case-meta__item strong { color: var(--color-text); font-weight: 600; line-height: 1.7; }
.case-study-page[dir='rtl'] .case-meta__item small { letter-spacing: 0; text-transform: none; }

/* ---------- detail: visuals ---------- */
.hero-visual { margin-top: 2rem; border-radius: 1.8rem; overflow: hidden; box-shadow: var(--shadow-lg); }
.hero-visual img { display: block; width: 100%; height: auto; }

.story { display: grid; gap: 1.1rem; margin-top: 2rem; }
.story-block {
  border: 1px solid var(--card-border); border-radius: 1.4rem; padding: 1.3rem 1.35rem;
  background: color-mix(in oklab, var(--color-surface) 97%, var(--color-primary) 3%);
}
.story-block__eyebrow { display: inline-flex; color: var(--color-text-muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; }
.story-block p, .story-block li { color: var(--color-text-muted); line-height: 1.9; }
.story-block ul { margin: 0.75rem 0 0; padding-inline-start: 1.2rem; }
.case-study-page[dir='rtl'] .story-block__eyebrow { letter-spacing: 0; text-transform: none; }

.heuristics { margin-top: 2rem; }
.heuristics__eyebrow { display: inline-flex; color: var(--color-text-muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; }
.heuristics h2 { margin: 0.75rem 0 0; font-size: clamp(1.6rem, 3vw, 2.6rem); line-height: 1.08; letter-spacing: -0.05em; max-width: 18ch; }
.heuristics__intro { margin: 0.9rem 0 0; color: var(--color-text-muted); max-width: 70ch; line-height: 1.9; }
.heuristics__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-top: 1.35rem; }
.heuristic-card {
  border: 1px solid var(--card-border); border-radius: 1.4rem; padding: 1.2rem;
  background: linear-gradient(180deg, color-mix(in oklab, var(--color-surface) 96%, var(--color-primary) 4%), var(--color-surface));
}
.heuristic-card h3 { margin: 0; font-size: 1.08rem; line-height: 1.3; }
.heuristic-card strong { display: inline-block; margin-top: 0.9rem; }
.heuristic-card p { margin: 0.35rem 0 0; color: var(--color-text-muted); line-height: 1.85; }
.case-study-page[dir='rtl'] .heuristics h2 { line-height: 1.15; letter-spacing: -0.02em; max-width: 22ch; }

/* ---------- detail: screens slider ---------- */
.screens { margin-top: 2rem; }
.screens__top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.screens__label { display: inline-flex; color: var(--color-text-muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; }
.screens__controls { display: inline-flex; align-items: center; gap: 0.6rem; }
.screens__button, .lightbox__button {
  width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid color-mix(in oklab, var(--color-text) 14%, transparent); border-radius: 999px;
  background: color-mix(in oklab, var(--color-surface-2) 88%, var(--color-text) 12%);
  color: var(--color-text); cursor: pointer;
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
  box-shadow: inset 0 1px 0 color-mix(in oklab, white 18%, transparent);
}
.screens__button:hover, .lightbox__button:hover {
  transform: translateY(-1px);
  background: color-mix(in oklab, var(--color-surface-2) 74%, var(--color-primary) 26%);
  border-color: color-mix(in oklab, var(--color-primary) 46%, var(--card-border));
}
.screens__button:disabled { opacity: 0.38; cursor: not-allowed; transform: none; box-shadow: none; }
.screens__viewport { overflow: hidden; margin-top: 1rem; }
.screens__track { display: flex; gap: 0.9rem; transition: transform 360ms cubic-bezier(0.16, 1, 0.3, 1); will-change: transform; }
.screen-card { flex: 0 0 calc((100% - 1.8rem) / 3); border: 1px solid var(--card-border); border-radius: 1.2rem; overflow: hidden; background: color-mix(in oklab, var(--color-surface) 96%, var(--color-primary) 4%); }
.screen-card__button { display: block; width: 100%; padding: 0; border: 0; background: transparent; cursor: pointer; }
.screen-card__media { aspect-ratio: 4 / 5; overflow: hidden; }
.screen-card__media img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.case-study-page[dir='rtl'] .screens__label { letter-spacing: 0; text-transform: none; }

/* ---------- detail: CTA / nav / footer ---------- */
.case-cta, .project-nav__card { border-radius: 1.8rem; }
.case-cta {
  margin-top: 2rem; padding: 1.5rem;
  background: linear-gradient(180deg, color-mix(in oklab, #101010 86%, var(--color-primary) 14%), #101010);
  border: 1px solid color-mix(in oklab, white 12%, transparent); box-shadow: var(--shadow-lg);
}
.case-cta p { margin: 0; max-width: 70ch; line-height: 1.8; color: rgba(255,255,255,0.9); }
.case-cta a {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px; margin-top: 1rem;
  padding: 0.8rem 1.2rem; border-radius: 999px; background: #ffffff; color: #0f1115; text-decoration: none;
  font-weight: 800; letter-spacing: -0.02em; border: 1px solid rgba(255,255,255,0.92);
  box-shadow: 0 10px 24px rgba(0,0,0,0.22), inset 0 1px 0 rgba(255,255,255,0.8);
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease, color 180ms ease;
}
.case-cta a:hover {
  transform: translateY(-1px); background: color-mix(in oklab, white 88%, var(--color-primary) 12%); color: #081116;
  box-shadow: 0 14px 30px rgba(0,0,0,0.28), 0 0 0 1px color-mix(in oklab, var(--color-primary) 24%, transparent);
}
.case-cta a:focus-visible { outline: 3px solid #ffd54a; outline-offset: 4px; }

.project-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-top: 2rem; }
.project-nav__card {
  display: block; padding: 1.25rem; text-decoration: none; border: 1px solid var(--card-border);
  background: color-mix(in oklab, var(--color-surface) 96%, var(--color-primary) 4%);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}
.project-nav__card:hover { transform: translateY(-2px); border-color: color-mix(in oklab, var(--color-primary) 28%, var(--card-border)); box-shadow: var(--shadow-md); }
.project-nav__card small { display: block; margin-bottom: 0.7rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.08em; }
.project-nav__card strong { color: var(--color-text); line-height: 1.6; }
.case-study-page[dir='rtl'] .project-nav__card small { letter-spacing: 0; text-transform: none; }

.case-footer { margin-top: 2rem; padding-top: 2rem; border-top: 1px solid color-mix(in oklab, var(--color-text) 10%, transparent); }
.case-footer__watermark { font-size: clamp(3rem, 11vw, 10rem); line-height: 0.9; letter-spacing: -0.08em; color: color-mix(in oklab, var(--color-text) 8%, transparent); }

/* ---------- detail: lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 60; display: none; align-items: center; justify-content: center;
  padding: 1.25rem; background: rgba(9, 9, 11, 0.82); backdrop-filter: blur(10px);
}
.lightbox.is-open { display: flex; }
.lightbox__dialog {
  width: min(100%, 920px); max-height: calc(100dvh - 2.5rem);
  border: 1px solid color-mix(in oklab, white 14%, transparent); border-radius: 1.4rem;
  background: color-mix(in oklab, var(--color-surface) 92%, black 8%); box-shadow: var(--shadow-lg); overflow: hidden;
}
.lightbox__bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.9rem 1rem; border-bottom: 1px solid var(--card-border); }
.lightbox__title { color: var(--color-text); font-size: 0.95rem; font-weight: 600; }
.lightbox__actions { display: inline-flex; gap: 0.5rem; }
.lightbox__body { display: grid; place-items: center; padding: 1rem; background: color-mix(in oklab, var(--color-bg) 82%, black 18%); }
.lightbox__image { max-width: 100%; max-height: calc(100dvh - 10rem); width: auto; height: auto; border-radius: 1rem; display: block; }

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

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .case-card { opacity: 1 !important; transform: none; animation: none !important; }
  .cases-grid, .portfolio-footer__grid, .availability,
  .case-meta, .heuristics__grid, .project-nav, .case-footer__grid {
    grid-template-columns: 1fr;
    display: grid;
  }
  .screen-card { flex-basis: calc((100% - 0.9rem) / 2); }
}
@media (max-width: 720px) {
  .case-card__visual { min-height: 280px; }
}
@media (max-width: 640px) {
  .screen-card { flex-basis: 100%; }
}