/* ==========================================================
   考拉藝術工作室 — 作品集頁 works.html 專用樣式
   延續品牌 Japandi 色彩系統（styles.css 之後載入）
   ========================================================== */

.works-hero {
  padding: clamp(148px, 16vw, 216px) 0 clamp(40px, 5vw, 64px);
  background:
    radial-gradient(circle at 84% 18%, rgba(243, 237, 228, 0.85), rgba(251, 249, 246, 0) 44%),
    linear-gradient(180deg, rgba(238, 229, 218, 0.55), rgba(251, 249, 246, 1) 72%);
}

.works-hero-inner {
  width: min(860px, calc(100% - 48px));
  margin: 0 auto;
  text-align: center;
}

.works-hero h1 {
  max-width: none;
  margin-bottom: 18px;
  font-size: clamp(2.6rem, 5vw, 4.6rem);
  font-weight: 500;
  letter-spacing: 0.14em;
}

.works-hero .eyebrow {
  letter-spacing: 0.22em;
}

.works-hero-lead {
  max-width: 34em;
  margin: 0 auto;
  color: var(--muted);
  font-size: clamp(0.98rem, 1.3vw, 1.08rem);
  line-height: 1.9;
}

.works-count {
  display: inline-flex;
  gap: 8px;
  margin-top: 22px;
  color: var(--accent);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

/* 分類篩選列 */
.works-filter {
  position: sticky;
  top: 76px;
  z-index: 20;
  padding: 14px 0;
  background: rgba(251, 249, 246, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.works-filter-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  width: min(1100px, calc(100% - 36px));
  margin: 0 auto;
}

.works-filter button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 18px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color 260ms ease, background 260ms ease, border-color 260ms ease, transform 260ms ease;
}

.works-filter button small {
  font-family: var(--font-serif);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  opacity: 0.7;
}

.works-filter button:hover {
  color: var(--text);
  border-color: rgba(44, 42, 41, 0.3);
  transform: translateY(-1px);
}

.works-filter button.is-active {
  border-color: var(--moss);
  background: var(--moss);
  color: #fff;
}

.works-filter button.is-active small {
  opacity: 0.85;
}

/* 藝廊格線 — 直欄瀑布流保留原始比例 */
.works-gallery {
  width: min(1360px, calc(100% - 48px));
  margin: 0 auto;
  padding: clamp(40px, 5vw, 72px) 0 clamp(72px, 8vw, 120px);
  columns: 3 320px;
  column-gap: clamp(22px, 2.4vw, 36px);
}

.work-card {
  position: relative;
  display: block;
  width: 100%;
  margin: 0 0 clamp(22px, 2.4vw, 36px);
  break-inside: avoid;
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
  text-align: left;
  font: inherit;
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 700ms cubic-bezier(0.16, 1, 0.3, 1), transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
}

.work-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.work-card.is-filtered-out {
  display: none;
}

.work-card-frame {
  overflow: hidden;
  border: 1px solid rgba(44, 42, 41, 0.09);
  border-radius: 4px;
  background: var(--surface);
  box-shadow: 0 16px 42px rgba(44, 42, 41, 0.05);
  transition: box-shadow 500ms cubic-bezier(0.16, 1, 0.3, 1), transform 500ms cubic-bezier(0.16, 1, 0.3, 1);
}

.work-card:hover .work-card-frame,
.work-card:focus-visible .work-card-frame {
  transform: translateY(-4px);
  box-shadow: 0 26px 60px rgba(44, 42, 41, 0.12);
}

.work-card img {
  display: block;
  width: 100%;
  height: auto;
  filter: saturate(0.94) brightness(1.02);
  transition: transform 900ms cubic-bezier(0.16, 1, 0.3, 1), filter 900ms cubic-bezier(0.16, 1, 0.3, 1);
}

.work-card:hover img {
  transform: scale(1.025);
  filter: saturate(1) brightness(1.03);
}

.work-card figcaption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 4px 0;
}

.work-card figcaption strong {
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.work-card figcaption span {
  flex: 0 0 auto;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* 底部 CTA */
.works-cta {
  padding: clamp(64px, 8vw, 104px) 0;
  border-top: 1px solid var(--line);
  background: var(--sand);
  text-align: center;
}

.works-cta-inner {
  width: min(640px, calc(100% - 48px));
  margin: 0 auto;
}

.works-cta h2 {
  margin-bottom: 14px;
  font-weight: 500;
  letter-spacing: 0.1em;
}

.works-cta p {
  margin-bottom: 26px;
  color: var(--muted);
}

/* 燈箱 */
.works-lightbox {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  place-items: center;
  padding: clamp(14px, 3vw, 40px);
  background: rgba(29, 27, 24, 0.82);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 260ms ease, visibility 260ms ease;
}

.works-lightbox.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.works-lightbox-card {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(250px, 0.55fr);
  width: min(1080px, 100%);
  max-height: min(88vh, 820px);
  overflow: hidden;
  border-radius: 6px;
  background: var(--surface);
  box-shadow: 0 32px 110px rgba(0, 0, 0, 0.4);
  transform: translateY(10px) scale(0.985);
  transition: transform 320ms cubic-bezier(0.16, 1, 0.3, 1);
}

.works-lightbox.is-open .works-lightbox-card {
  transform: translateY(0) scale(1);
}

.works-lightbox-card img {
  width: 100%;
  height: 100%;
  min-height: 380px;
  object-fit: contain;
  background: #201c18;
}

.works-lightbox-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
  padding: clamp(24px, 2.6vw, 36px);
}

.works-lightbox-copy .eyebrow {
  margin-bottom: 0;
}

.works-lightbox-copy h3 {
  margin: 0;
  font-size: clamp(1.5rem, 2.2vw, 2rem);
  font-weight: 600;
  letter-spacing: 0.08em;
}

.works-lightbox-cat {
  width: fit-content;
  border-radius: 4px;
  padding: 7px 10px;
  background: rgba(122, 130, 113, 0.13);
  color: var(--moss-dark);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.works-lightbox-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.85;
}

.works-lightbox-copy .button {
  margin-top: 8px;
  width: 100%;
}

.works-lightbox-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  cursor: pointer;
  font-size: 28px;
  line-height: 1;
}

.works-lightbox-nav {
  position: absolute;
  top: 50%;
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  cursor: pointer;
  font-size: 20px;
  transform: translateY(-50%);
  transition: background 200ms ease;
}

.works-lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.24);
}

.works-lightbox-prev { left: clamp(8px, 2vw, 28px); }
.works-lightbox-next { right: clamp(8px, 2vw, 28px); }

@media (max-width: 900px) {
  .works-filter { top: 70px; }

  .works-gallery { columns: 2 240px; }

  .works-lightbox-card {
    grid-template-columns: 1fr;
    max-height: 90svh;
    overflow-y: auto;
  }

  .works-lightbox-card img {
    min-height: 0;
    max-height: 56svh;
  }

  .works-lightbox-nav { display: none; }
}

@media (max-width: 560px) {
  .works-gallery {
    columns: 1;
    width: calc(100% - 36px);
  }

  .works-hero { padding-top: 128px; }
}

@media (prefers-reduced-motion: reduce) {
  .work-card,
  .work-card img,
  .work-card-frame,
  .works-lightbox-card {
    transition: none;
  }

  .work-card {
    opacity: 1;
    transform: none;
  }
}