/* ========================================
   PORTFOLIO PAGE STYLES
   Gallery showcase with filtering and detail views
   ======================================== */

/* ========================================
   PAGE STRUCTURE & CONTENT LAYOUT
   Portfolio page scaffold and overall layout
   ======================================== */

/* ---- PAGE STRUCTURE ---- */

.portfolio-page {
  display: grid;
  gap: 1rem;
  align-content: start;
  color: var(--portfolio-copy);
  /* ---- day-mode theme tokens ---- */
  --portfolio-book-paper: color-mix(in srgb, #f7e8ca 62%, var(--shell-surface-soft) 38%);
  --portfolio-scry-shadow: rgba(10, 18, 22, 0.28);
  --portfolio-book-shell-bg:
    linear-gradient(180deg, rgba(179, 138, 103, 0.44), transparent 20%),
    linear-gradient(135deg, rgba(118, 85, 64, 0.88), rgba(79, 57, 46, 0.2)),
    color-mix(in srgb, var(--portfolio-surface) 80%, rgb(52, 35, 27) 20%);
  --portfolio-book-page-bg:
    linear-gradient(180deg, rgba(255, 250, 238, 0.84), rgba(231, 211, 180, 0.28)),
    linear-gradient(135deg, rgba(214, 176, 118, 0.24), rgba(186, 162, 223, 0.08) 58%, transparent 72%),
    color-mix(in srgb, var(--portfolio-book-paper) 92%, rgb(255, 245, 231) 8%);
  --portfolio-plank-bg:
    linear-gradient(180deg, rgba(252, 226, 199, 0.14), transparent 22%),
    linear-gradient(180deg, rgba(158, 113, 92, 0.94), rgba(111, 74, 63, 0.96));
  --portfolio-plank-shadow: rgba(26, 13, 12, 0.18);
  --portfolio-plank-copy: color-mix(in srgb, var(--shell-copy) 36%, var(--shell-ink-soft) 64%);
  --portfolio-tag-fill: rgba(42, 25, 22, 0.82);
  --portfolio-tag-fill-active: rgba(82, 49, 41, 0.92);
  --portfolio-tag-fill-exclude: rgba(29, 17, 16, 0.7);
  --portfolio-thumb-title-fill:
    linear-gradient(180deg, rgba(55, 34, 27, 0.92), rgba(33, 20, 17, 0.82));
  --portfolio-thumb-title-border: rgba(255, 233, 209, 0.28);
  --portfolio-thumb-title-copy: #fff4e6;
  --portfolio-thumb-tag-fill:
    linear-gradient(180deg, rgba(39, 25, 20, 0.86), rgba(24, 16, 13, 0.76));
  --portfolio-thumb-tag-border: rgba(255, 229, 202, 0.22);
  --portfolio-thumb-tag-copy: rgba(255, 243, 230, 0.94);
  --portfolio-thumb-chip-shadow: rgba(12, 8, 8, 0.28);
  --portfolio-image-well-bg:
    linear-gradient(180deg, rgba(255, 251, 245, 0.28), rgba(180, 144, 107, 0.12)),
    rgb(255, 248, 236);
  --portfolio-image-well-edge: rgba(122, 94, 59, 0.22);
  --portfolio-image-matte: rgb(255, 250, 242);
  --content-safe-pad-top: 4rem;
  --content-safe-pad-right: 0rem;
  --content-safe-pad-bottom: 12rem;
  --content-safe-pad-left: 0rem;
}

.portfolio-tagbar-section,
.portfolio-book-section {
  display: grid;
  justify-items: center;
}

.portfolio-tagbar-section {
  position: relative;
  width: 100%;
  isolation: isolate;
  overflow: visible;
}

.portfolio-tagbar-box,
.portfolio-book-shell {
  width: min(100%, 72rem);
  border: var(--outline);
  padding: 1rem;
  background:
    linear-gradient(180deg, rgba(255, 242, 226, 0.14), transparent 26%),
    linear-gradient(135deg, rgba(126, 88, 63, 0.16), rgba(58, 38, 29, 0.12)),
    var(--portfolio-surface);
  position: relative;
  overflow: visible;
  box-shadow: 0 0.75rem 1.8rem rgba(16, 12, 18, 0.16);
}

/* ---- shared outer shell frame ---- */
.portfolio-book-shell::before {
  content: "";
  position: absolute;
  inset: 0.15rem;
  border: var(--outline);
  background: color-mix(in srgb, white 8%, transparent);
  pointer-events: none;
  z-index: -1;
  transform: translate(0.18rem, 0.18rem);
  opacity: 0.5;
}

/* ========================================
   TAG BAR & FILTERING
   Tag selection and category filtering
   ======================================== */

/* ---- TAG BAR LAYOUT ---- */

.portfolio-tagbar-box {
  display: grid;
  gap: 0.75rem;
  position: relative;
  z-index: 1;
  background: var(--portfolio-plank-bg);
  box-shadow:
    inset 0 1px 0 rgba(255, 238, 221, 0.16),
    inset 0 -0.2rem 0.5rem rgba(56, 31, 24, 0.14),
    0 0.75rem 1.3rem var(--portfolio-plank-shadow);
}

.portfolio-tag-row {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  padding: 0;
  scrollbar-width: thin;
  border: none;
  background: transparent;
  box-shadow: none;
}

.portfolio-tag-row::-webkit-scrollbar {
  height: 0.45rem;
}

.portfolio-tag {
  flex: 0 0 auto;
  min-height: 2.75rem;
  padding: 0.5rem 2rem 0.5rem 1rem;
  border: var(--outline);
  background:
    linear-gradient(180deg, rgba(255, 240, 221, 0.08), transparent 28%),
    var(--portfolio-tag-fill);
  color: rgb(234, 213, 199);
  font: inherit;
  cursor: pointer;
  position: relative;
  text-shadow: 0 0.05rem 0.15rem rgba(12, 8, 8, 0.28);
  box-shadow:
    inset 0 1px 0 rgba(255, 230, 204, 0.08),
    0 0.32rem 0.7rem rgba(24, 14, 12, 0.18);
}

.portfolio-tag.is-reset-active,
.portfolio-tag.is-include {
  background:
    linear-gradient(180deg, rgba(255, 245, 233, 0.14), transparent 30%),
    var(--portfolio-tag-fill-active);
  color: rgb(255, 238, 225);
  box-shadow:
    inset 0 1px 0 rgba(255, 245, 229, 0.12),
    0 0 0 1px rgba(255, 240, 219, 0.16),
    0 0.3rem 0.75rem rgba(24, 14, 12, 0.2);
}

.portfolio-tag.is-include::after {
  content: "✓";
  position: absolute;
  top: 50%;
  right: 0.7rem;
  transform: translateY(-50%);
}

.portfolio-tag.is-exclude {
  background:
    linear-gradient(180deg, rgba(255, 227, 215, 0.05), transparent 32%),
    var(--portfolio-tag-fill-exclude);
  opacity: 0.78;
  color: rgba(228, 205, 197, 0.9);
}

.portfolio-tag.is-exclude::after {
  content: "✕";
  position: absolute;
  top: 50%;
  right: 0.7rem;
  transform: translateY(-50%);
}

.portfolio-tag-note {
  margin: 0;
  line-height: 1.4;
  color: color-mix(in srgb, var(--portfolio-plank-copy) 72%, white 28%);
}

/* ========================================
   BOOK SHELL & PAGES
   Two-page book presentation and layout
   ======================================== */

/* ---- BOOK STRUCTURE ---- */

.portfolio-book-shell {
  display: grid;
  background: var(--portfolio-book-shell-bg);
}

.portfolio-book-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.portfolio-book-page {
  min-width: 0;
  background: var(--portfolio-book-page-bg);
  padding: 0.5rem;
  box-shadow:
    inset 0 0 0 1px rgba(122, 94, 59, 0.1),
    0 0.85rem 1.5rem rgba(22, 14, 12, 0.06);
}

.portfolio-book-left-page {
  border: var(--outline);
  border-bottom: none;
}

.portfolio-book-right-page {
  border: var(--outline);
  border-top: none;
  display: grid;
  gap: 1rem;
}

.portfolio-book-main {
  min-height: 36rem;
  display: grid;
}

.portfolio-preview {
  height: 100%;
  display: grid;
  gap: 1rem;
  align-content: start;
}

.portfolio-preview-kicker,
.portfolio-preview-title,
.portfolio-preview-caption {
  margin: 0;
}

.portfolio-preview-kicker,
.portfolio-page-indicator {
  color: var(--portfolio-muted);
  text-shadow: 0 0.08rem 0.18rem rgba(20, 12, 10, 0.08);
}

.portfolio-preview-title,
.portfolio-thumb-title,
.portfolio-lightbox-title {
  color: var(--portfolio-heading);
  text-shadow: 0 0.08rem 0.18rem rgba(20, 12, 10, 0.08);
}

.portfolio-preview-caption,
.portfolio-lightbox-caption,
.portfolio-page-indicator {
  text-shadow: 0 0.08rem 0.18rem rgba(20, 12, 10, 0.08);
}

/* ---- PREVIEW MEDIA & ART ---- */

.portfolio-preview-media {
  position: relative;
  min-height: 26rem;
  display: grid;
  place-items: center;
}

.portfolio-preview-art {
  width: 100%;
  min-height: 26rem;
  border: var(--outline);
  background: var(--portfolio-image-well-bg);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 1rem;
  overflow: hidden;
  box-shadow:
    inset 0 0 0 1px var(--portfolio-image-well-edge),
    inset 0 0.28rem 0.55rem rgba(255, 249, 240, 0.14),
    inset 0 -0.42rem 0.9rem rgba(96, 67, 44, 0.08);
}

.motion-preview .portfolio-preview-media {
  min-height: 26rem;
  padding-bottom: 1.8rem;
}

.portfolio-preview-expand {
  position: absolute;
  right: 0.65rem;
  bottom: 0.65rem;
  min-width: 3.15rem;
  min-height: 3.15rem;
  padding: 0;
  border: var(--outline);
  border-radius: 0.72rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), transparent 42%),
    color-mix(in srgb, var(--shell-surface) 92%, transparent);
  color: var(--portfolio-heading);
  font: inherit;
  font-size: 1.18rem;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
  overflow: hidden;
  isolation: isolate;
  z-index: 2;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.06),
    0 0.52rem 1rem rgba(17, 10, 17, 0.18);
  text-shadow: 0 0.08rem 0.22rem rgba(14, 10, 20, 0.32);
  transition:
    transform 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease,
    color 180ms ease;
}

.portfolio-preview-expand::before,
.portfolio-mobile-strip-arrow::before,
.portfolio-page-arrow::before {
  content: "";
  position: absolute;
  inset: 0.24rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: inherit;
  pointer-events: none;
}

.portfolio-preview-expand::after,
.portfolio-mobile-strip-arrow::after,
.portfolio-page-arrow::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 242, 214, 0.12), transparent 46%),
    linear-gradient(90deg, transparent 0 7%, rgba(255, 236, 214, 0.08) 7% 8%, transparent 8% 92%, rgba(255, 236, 214, 0.08) 92% 93%, transparent 93% 100%);
  opacity: 0.72;
}

.portfolio-preview-expand:hover,
.portfolio-preview-expand:focus-visible {
  transform: translateY(-0.06rem) scale(1.02);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.16), transparent 42%),
    color-mix(in srgb, var(--portfolio-surface-highlight) 72%, var(--shell-surface) 28%);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.1),
    0 0.72rem 1.2rem rgba(17, 10, 17, 0.22);
}

.motion-preview[hidden],
.illustration-preview[hidden],
.portfolio-thumb[hidden] {
  display: none !important;
}

.portfolio-scry-ball {
  width: min(100%, 23.5rem);
  aspect-ratio: 1 / 1;
  display: grid;
  place-self: center;
  margin-inline: auto;
  position: relative;
  isolation: isolate;
  overflow: visible;
}

.portfolio-scry-ball::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -1.7rem;
  width: 37%;
  height: 2.15rem;
  transform: translateX(-50%);
  border: var(--outline);
  background:
    linear-gradient(180deg, rgba(255, 241, 222, 0.34), transparent 26%),
    linear-gradient(180deg, rgba(120, 88, 63, 0.96), rgba(82, 57, 41, 0.94));
  clip-path: polygon(16% 0, 84% 0, 100% 100%, 0 100%);
  box-shadow: 0 0.45rem 0.9rem rgba(30, 18, 16, 0.22);
  z-index: 0;
}

.portfolio-scry-ball-inner {
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 1;
  border: var(--outline);
  border-radius: 50%;
  overflow: hidden;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 0.9rem;
  background:
    radial-gradient(circle at 32% 24%, rgba(255, 255, 255, 0.34), transparent 24%),
    radial-gradient(circle at 50% 62%, rgba(105, 161, 215, 0.14), transparent 58%),
    color-mix(in srgb, var(--shell-surface-soft) 26%, transparent);
  box-shadow:
    inset 0 0 2.2rem rgba(169, 211, 255, 0.14),
    inset 0 0 0 1px rgba(232, 243, 255, 0.12),
    0 1rem 2rem var(--portfolio-scry-shadow);
}

.portfolio-scry-ball-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 24%, rgba(255, 255, 255, 0.16), transparent 22%),
    radial-gradient(circle at 50% 50%, transparent 55%, rgba(225, 243, 255, 0.11) 100%);
  pointer-events: none;
  z-index: 2;
}

.portfolio-preview-art.has-media,
.portfolio-scry-ball-inner.has-media,
.portfolio-lightbox-art.has-media,
.portfolio-lightbox-scry-inner.has-media {
  padding: 0;
}

.portfolio-preview-art[data-media-mode="image"],
.portfolio-lightbox-art[data-media-mode="image"] {
  position: relative;
  isolation: isolate;
}

.portfolio-preview-art[data-media-mode="image"].has-media,
.portfolio-lightbox-art[data-media-mode="image"].has-media {
  padding: clamp(1rem, 2.1vw, 1.55rem);
}

.portfolio-preview-art[data-media-mode="image"].has-media::before,
.portfolio-lightbox-art[data-media-mode="image"].has-media::before {
  content: "";
  position: absolute;
  inset: clamp(0.55rem, 1.2vw, 0.9rem);
  border: 1px solid rgba(122, 94, 59, 0.24);
  box-shadow:
    inset 0 0 0 1px rgba(255, 246, 225, 0.22),
    inset 0 0.18rem 0.5rem rgba(255, 251, 244, 0.1),
    inset 0 -0.4rem 0.9rem rgba(111, 77, 52, 0.08);
  pointer-events: none;
  z-index: 1;
}

.portfolio-media-fallback {
  margin: 0;
  max-width: 24rem;
  padding: 1rem;
  color: var(--portfolio-muted);
  line-height: 1.4;
}

.portfolio-media-image,
.portfolio-media-video {
  display: block;
  width: 100%;
  height: 100%;
}

.portfolio-progressive-media {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  overflow: hidden;
  isolation: isolate;
}

.portfolio-progressive-media > .portfolio-media-image {
  position: absolute;
  inset: 0;
}

.portfolio-media-image--preview {
  transform: scale(1.03);
  filter: blur(0.42rem) saturate(108%);
  opacity: 0.96;
  z-index: 0;
}

.portfolio-media-image--full {
  opacity: 0;
  z-index: 1;
  transition: opacity 220ms ease;
}

.portfolio-progressive-media.is-full-ready .portfolio-media-image--full {
  opacity: 1;
}

.portfolio-progressive-media.is-full-ready .portfolio-media-image--preview {
  opacity: 0;
  transition: opacity 220ms ease;
}

.portfolio-progressive-media.is-full-failed .portfolio-media-image--full {
  opacity: 0;
}

.portfolio-progressive-media.is-full-failed .portfolio-media-image--preview {
  opacity: 1;
  filter: none;
}

.portfolio-media-video {
  background: color-mix(in srgb, var(--shell-surface-soft) 50%, black 50%);
}

.portfolio-preview-art .portfolio-media-image,
.portfolio-preview-art .portfolio-media-video,
.portfolio-lightbox-art .portfolio-media-image,
.portfolio-lightbox-art .portfolio-media-video {
  object-fit: contain;
}

.portfolio-preview-art[data-media-mode="image"] > .portfolio-media-image,
.portfolio-preview-art[data-media-mode="image"] > .portfolio-media-video,
.portfolio-lightbox-art[data-media-mode="image"] > .portfolio-media-image,
.portfolio-lightbox-art[data-media-mode="image"] > .portfolio-media-video,
.portfolio-preview-art[data-media-mode="image"] > .portfolio-progressive-media,
.portfolio-lightbox-art[data-media-mode="image"] > .portfolio-progressive-media {
  background: var(--portfolio-image-matte);
  box-shadow:
    0 0.65rem 1.25rem rgba(34, 20, 16, 0.1),
    0 0 0 1px rgba(255, 248, 236, 0.22);
  position: relative;
  z-index: 0;
}

.portfolio-preview-art[data-media-mode="image"] .portfolio-progressive-media > .portfolio-media-image,
.portfolio-lightbox-art[data-media-mode="image"] .portfolio-progressive-media > .portfolio-media-image {
  position: absolute;
  inset: 0;
  background: none;
  box-shadow: none;
}

.portfolio-scry-ball-inner .portfolio-media-image,
.portfolio-scry-ball-inner .portfolio-media-video,
.portfolio-lightbox-scry-inner .portfolio-media-image,
.portfolio-lightbox-scry-inner .portfolio-media-video {
  object-fit: cover;
}

.portfolio-scry-ball-inner > .portfolio-media-image,
.portfolio-scry-ball-inner > .portfolio-media-video,
.portfolio-scry-ball-inner > .portfolio-progressive-media,
.portfolio-lightbox-scry-inner > .portfolio-media-image,
.portfolio-lightbox-scry-inner > .portfolio-media-video,
.portfolio-lightbox-scry-inner > .portfolio-progressive-media {
  position: relative;
  z-index: 1;
}

/* ========================================
   THUMBNAIL ARCHIVE & NAVIGATION
   Thumbnail grid, mobile strip, pagination
   ======================================== */

/* ---- THUMBNAIL ARCHIVE ---- */

.portfolio-mobile-archive {
  display: block;
}

.portfolio-book-side {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.portfolio-thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  border: var(--outline);
  background:
    linear-gradient(180deg, rgba(255, 251, 244, 0.16), transparent 28%),
    var(--portfolio-image-well-bg);
  color: inherit;
  font: inherit;
  cursor: pointer;
  text-align: left;
  padding: 0.75rem;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto auto;
  gap: 0.5rem;
  align-content: end;
  overflow: hidden;
  box-sizing: border-box;
  position: relative;
}

.portfolio-thumb.is-active {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), transparent 24%),
    var(--portfolio-book-page-bg);
}

.portfolio-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease;
}

.portfolio-thumb.has-thumb-media::after {
  opacity: 1;
  background:
    linear-gradient(
      180deg,
      rgba(8, 13, 11, 0.08) 0%,
      rgba(8, 13, 11, 0.02) 34%,
      rgba(8, 13, 11, 0.22) 58%,
      rgba(8, 13, 11, 0.82) 100%
    );
}

.portfolio-thumb-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.portfolio-thumb-media-asset {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portfolio-thumb-title {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  align-self: start;
  width: fit-content;
  max-width: calc(100% - 0.15rem);
  padding: 0.22rem 0.56rem 0.18rem;
  border: 1px solid var(--portfolio-thumb-title-border);
  border-radius: 0.55rem;
  background: var(--portfolio-thumb-title-fill);
  box-shadow:
    0 0.28rem 0.72rem color-mix(in srgb, var(--portfolio-thumb-chip-shadow) 70%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  font-weight: bold;
  line-height: 1.08;
  color: var(--portfolio-thumb-title-copy);
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.3);
  position: relative;
  z-index: 1;
}

.portfolio-thumb-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  position: relative;
  z-index: 1;
}

.portfolio-thumb.has-thumb-media .portfolio-thumb-title {
  backdrop-filter: blur(0.18rem) saturate(120%);
}

.portfolio-thumb-tag {
  min-height: 1.5rem;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--portfolio-thumb-tag-border);
  border-radius: 0.4rem;
  background: var(--portfolio-thumb-tag-fill);
  font-size: 0.75rem;
  color: var(--portfolio-thumb-tag-copy);
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.26);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  box-shadow:
    0 0.22rem 0.52rem color-mix(in srgb, var(--portfolio-thumb-chip-shadow) 62%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.portfolio-thumb-tag-label--short {
  display: none;
}

.portfolio-thumb.has-thumb-media .portfolio-thumb-tag {
  backdrop-filter: blur(0.16rem) saturate(118%);
}

/* ---- MOBILE STRIP CONTROLS ---- */

/* mobile strip arrows */

.portfolio-mobile-strip-arrow {
  display: none;
  min-width: 2.85rem;
  min-height: 2.35rem;
  padding: 0;
  border: var(--outline);
  border-radius: 0.55rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 44%),
    linear-gradient(90deg, rgba(58, 41, 79, 0.4), rgba(34, 25, 51, 0.12) 18%, rgba(34, 25, 51, 0.12) 82%, rgba(58, 41, 79, 0.4)),
    var(--portfolio-surface-strong);
  color: var(--portfolio-copy);
  font: inherit;
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.06),
    0 0.36rem 0.8rem rgba(17, 10, 17, 0.14);
  text-shadow: 0 0.08rem 0.22rem rgba(14, 10, 20, 0.28);
  transition:
    transform 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease,
    opacity 180ms ease,
    color 180ms ease;
}

.portfolio-mobile-strip-arrow.is-hidden {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.portfolio-mobile-strip-arrow:hover:not(:disabled),
.portfolio-mobile-strip-arrow:focus-visible:not(:disabled) {
  transform: translateY(-0.05rem);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), transparent 44%),
    linear-gradient(90deg, rgba(79, 56, 110, 0.44), rgba(38, 29, 61, 0.14) 18%, rgba(38, 29, 61, 0.14) 82%, rgba(79, 56, 110, 0.44)),
    var(--portfolio-surface-highlight);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.09),
    0 0.5rem 0.95rem rgba(17, 10, 17, 0.18);
}

.portfolio-mobile-strip-arrow:disabled {
  opacity: 0.42;
  color: color-mix(in srgb, var(--portfolio-copy) 58%, transparent);
  cursor: default;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.03),
    0 0.16rem 0.38rem rgba(17, 10, 17, 0.08);
}

/* ---- DESKTOP PAGINATION ---- */

/* desktop pager */

.portfolio-book-footer {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.75rem;
  align-items: center;
}

.portfolio-page-arrow {
  min-width: 3rem;
  min-height: 3rem;
  border: var(--outline);
  border-radius: 0.6rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 44%),
    linear-gradient(90deg, rgba(58, 41, 79, 0.4), rgba(34, 25, 51, 0.12) 18%, rgba(34, 25, 51, 0.12) 82%, rgba(58, 41, 79, 0.4)),
    var(--portfolio-surface-strong);
  color: var(--portfolio-copy);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.06),
    0 0.4rem 0.85rem rgba(17, 10, 17, 0.14);
  text-shadow: 0 0.08rem 0.22rem rgba(14, 10, 20, 0.28);
  transition:
    transform 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease;
}

.portfolio-page-arrow:hover,
.portfolio-page-arrow:focus-visible {
  transform: translateY(-0.05rem);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), transparent 44%),
    linear-gradient(90deg, rgba(79, 56, 110, 0.44), rgba(38, 29, 61, 0.14) 18%, rgba(38, 29, 61, 0.14) 82%, rgba(79, 56, 110, 0.44)),
    var(--portfolio-surface-highlight);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.09),
    0 0.52rem 1rem rgba(17, 10, 17, 0.18);
}

.portfolio-page-indicator {
  border: var(--outline);
  min-height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  text-align: center;
  padding: 0.5rem 1rem;
  white-space: nowrap;
}

/* ========================================
   LIGHTBOX & MODAL
   Full-screen detail viewer and modal dialog
   ======================================== */

/* ---- LIGHTBOX CONTAINER ---- */

/* lightbox */

.portfolio-lightbox[hidden] {
  display: none !important;
}

.portfolio-lightbox {
  position: fixed;
  inset: 0;
  z-index: 95;
  display: grid;
  place-items: center;
}

.portfolio-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: var(--portfolio-overlay);
}

.portfolio-lightbox-dialog {
  position: relative;
  z-index: 1;
  width: min(92vw, 70rem);
  max-height: 92vh;
  overflow: auto;
  border: var(--outline);
  background: var(--portfolio-dialog-bg);
  color: var(--portfolio-copy);
  padding: 1rem;
  display: grid;
  gap: 1rem;
}

.portfolio-lightbox-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  min-width: 2.5rem;
  min-height: 2.5rem;
  border: var(--outline);
  background: var(--portfolio-surface-strong);
  color: inherit;
  font: inherit;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.portfolio-lightbox-media {
  display: grid;
  place-items: center;
  min-height: clamp(20rem, 52vh, 44rem);
}

.portfolio-lightbox-art {
  width: 100%;
  min-height: clamp(22rem, 68vh, 48rem);
  max-height: 75vh;
  border: var(--outline);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 1rem;
  overflow: hidden;
  background: var(--portfolio-image-well-bg);
  box-shadow:
    inset 0 0 0 1px var(--portfolio-image-well-edge),
    inset 0 0.28rem 0.55rem rgba(255, 249, 240, 0.14),
    inset 0 -0.42rem 0.9rem rgba(96, 67, 44, 0.08);
}

.portfolio-lightbox-scry[hidden] {
  display: none !important;
}

.portfolio-lightbox-scry {
  width: min(70vw, 30rem);
  aspect-ratio: 1 / 1;
  border: var(--outline);
  border-radius: 50%;
  display: grid;
  place-self: center;
  overflow: hidden;
  background: var(--portfolio-surface-strong);
  max-width: 100%;
  margin-inline: auto;
}

.portfolio-lightbox-scry-inner {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 1rem;
}

.portfolio-lightbox-title,
.portfolio-lightbox-caption {
  margin: 0;
}

/* ========================================
   RESPONSIVE ADJUSTMENTS
   Mobile, tablet, and desktop layout variations
   ======================================== */

/* ---- MOBILE & TABLET LAYOUT (max-width: 899px) ---- */

/* mobile + tablet */

@media (max-width: 899px) {
  .portfolio-book-shell::before {
    display: none;
  }

  .portfolio-book-main {
    min-height: 28rem;
  }

  .portfolio-preview-media {
    min-height: 17rem;
  }

  .portfolio-preview-art {
    min-height: 20rem;
  }

  .portfolio-scry-ball {
    width: min(100%, 20rem);
  }

  .portfolio-scry-ball::before {
    bottom: -1.45rem;
    height: 1.85rem;
  }

  .portfolio-book-right-page {
    gap: 0.75rem;
  }

  .portfolio-mobile-archive {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.5rem;
    align-items: center;
  }

  .portfolio-mobile-strip-arrow {
    display: grid;
    place-items: center;
  }

  .portfolio-book-side {
    grid-auto-flow: column;
    grid-auto-columns: 9.5rem;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
    padding-bottom: 0.25rem;
    touch-action: pan-x;
    cursor: auto;
    user-select: auto;
    -webkit-overflow-scrolling: touch;
  }

  .portfolio-book-side::-webkit-scrollbar {
    display: none;
  }

  .portfolio-book-side.is-dragging {
    cursor: auto;
  }

  .portfolio-thumb {
    scroll-snap-align: start;
  }

  .portfolio-book-footer {
    display: none;
  }
}

/* ---- PHONE SHELL TUNING (max-width: 700px) ---- */
@media (max-width: 700px) {
  .portfolio-page {
    justify-items: center;
  }

  .portfolio-thumb {
    display: block;
  }

  .portfolio-thumb-title {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    max-width: calc(100% - 1.5rem);
    padding: 0.16rem 0.42rem 0.14rem;
    font-size: 0.92rem;
    line-height: 1.02;
  }

  .portfolio-thumb-tags {
    position: absolute;
    left: 0.75rem;
    right: 0.75rem;
    bottom: 0.75rem;
    display: flex;
    flex-wrap: wrap;
    align-content: flex-end;
  }

  .portfolio-thumb-tag {
    min-height: 1.35rem;
    padding: 0.16rem 0.38rem;
  }

  .portfolio-thumb-tag-label--full {
    display: none;
  }

  .portfolio-thumb-tag-label--short {
    display: inline;
  }

  .portfolio-tagbar-section,
  .portfolio-book-section {
    width: 100%;
    justify-items: center;
  }

  .portfolio-tagbar-box,
  .portfolio-book-shell {
    width: min(100%, calc(100vw - 1rem));
    margin-inline: auto;
  }

  body.page-portfolio {
    --left-rail-width: 3rem;
    --right-rail-width: 0rem;
    --top-bar-height: 3.15rem;
    --footer-height: 3rem;
    --icon-large: 4rem;
    --icon-small: 2rem;
    --nav-gap: 0.25rem;
    --shell-pad: 0.2rem;
  }

  body.page-portfolio.is-shell-mini {
    --top-bar-height: 2.65rem;
    --icon-large: 3rem;
  }
}

/* ---- DESKTOP LAYOUT (min-width: 900px) ---- */

/* desktop: equal book pages, 2 x 2 thumbs */

@media (min-width: 900px) {
  .portfolio-book-shell {
    padding: 1.15rem;
  }

  .portfolio-book-shell::after {
    content: "";
    position: absolute;
    top: 1.15rem;
    bottom: 1.15rem;
    left: 50%;
    width: 1.9rem;
    transform: translateX(-50%);
    background:
      linear-gradient(
        90deg,
        rgba(74, 46, 28, 0.32) 0%,
        rgba(217, 180, 126, 0.14) 18%,
        rgba(255, 242, 220, 0.1) 50%,
        rgba(131, 88, 51, 0.18) 82%,
        rgba(52, 32, 22, 0.28) 100%
      );
    border-radius: 999px;
    box-shadow:
      inset 0 0 1.2rem rgba(56, 36, 25, 0.22),
      0 0 1rem rgba(29, 18, 14, 0.08);
    pointer-events: none;
    z-index: 0;
  }

  .portfolio-book-inner {
    position: relative;
    z-index: 1;
    grid-template-columns: 1fr 1fr;
    gap: 0.85rem;
  }

  .portfolio-book-page {
    border: var(--outline);
    min-height: 40rem;
    padding: 1.2rem;
  }

  .portfolio-book-left-page,
  .portfolio-book-right-page {
    border: var(--outline);
  }

  .portfolio-book-left-page {
    border-right: none;
    border-radius: 1.25rem 0.55rem 0.6rem 1.25rem;
    box-shadow:
      inset -1.25rem 0 1.85rem -1.45rem rgba(84, 56, 35, 0.28),
      inset 0 1px 0 rgba(255, 252, 240, 0.3);
  }

  .portfolio-book-right-page {
    border-left: none;
    grid-template-rows: 1fr auto;
    border-radius: 0.55rem 1.25rem 1.25rem 0.6rem;
    box-shadow:
      inset 1.25rem 0 1.85rem -1.45rem rgba(84, 56, 35, 0.26),
      inset 0 1px 0 rgba(255, 252, 240, 0.28);
  }

  .portfolio-book-main {
    min-height: 100%;
  }

  .portfolio-book-side {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-rows: 1fr;
    overflow: visible;
  }

  .portfolio-scry-ball {
    width: min(100%, 24.6rem);
  }

  .portfolio-tagbar-box {
    border: none;
    padding: 1rem 0;
    background: transparent;
    box-shadow: none;
  }

  .portfolio-tagbar-box::before {
    display: none;
  }

  .portfolio-tagbar-section::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 50%;
    width: 100vw;
    transform: translateX(-50%);
    background: var(--portfolio-plank-bg);
    border-top: var(--outline);
    border-bottom: var(--outline);
    box-shadow:
      inset 0 1px 0 rgba(255, 238, 221, 0.08),
      0 0.45rem 1rem var(--portfolio-plank-shadow);
    pointer-events: none;
    z-index: 0;
  }
}

/* ---- SMALL MOBILE REFINEMENTS (max-width: 520px) ---- */

@media (max-width: 520px) {
  .portfolio-tagbar-box,
  .portfolio-book-shell {
    padding: 0.75rem;
  }

  .portfolio-book-page {
    padding: 0.75rem;
  }

  .portfolio-book-main {
    min-height: 24rem;
  }

.motion-preview .portfolio-preview-media {
    min-height: 16rem;
  }

  .portfolio-preview-art {
    min-height: 16rem;
  }

  .portfolio-book-side {
    grid-auto-columns: 8.75rem;
  }

  .portfolio-lightbox-dialog {
    width: min(94vw, 56rem);
    padding: 0.75rem;
  }
}

/* ========================================
   LIGHTBOX INTERACTION GUARD
   Keep shell chrome from stealing clicks while the lightbox is open
   ======================================== */
body.has-portfolio-lightbox-open #shell-left-slot,
body.has-portfolio-lightbox-open #shell-top-slot,
body.has-portfolio-lightbox-open #shell-right-slot,
body.has-portfolio-lightbox-open #shell-footer-slot {
  pointer-events: none;
}

body.has-portfolio-lightbox-open #shell-left-slot *,
body.has-portfolio-lightbox-open #shell-top-slot *,
body.has-portfolio-lightbox-open #shell-right-slot *,
body.has-portfolio-lightbox-open #shell-footer-slot * {
  pointer-events: none !important;
}

body.has-portfolio-lightbox-open .portfolio-lightbox {
  pointer-events: auto;
}

/* ========================================
   NIGHT THEME OVERRIDES
   Cooler paper, plank, and tag treatment for night mode
   ======================================== */

html[data-shell-theme="night"] body.page-portfolio .portfolio-page,
body.page-portfolio[data-shell-theme="night"] .portfolio-page {
  --portfolio-copy: #f2f3ff;
  --portfolio-heading: #fff4df;
  --portfolio-muted: rgba(225, 232, 255, 0.82);
  --portfolio-surface: rgb(33, 32, 56);
  --portfolio-surface-strong: rgb(25, 24, 42);
  --portfolio-surface-dim: rgb(16, 17, 30);
  --portfolio-dialog-bg: rgb(30, 30, 46);
  --portfolio-book-paper: color-mix(in srgb, #3a405d 72%, rgb(19, 25, 48) 28%);
  --portfolio-book-shell-bg:
    linear-gradient(180deg, rgba(134, 164, 225, 0.505), transparent 18%),
    linear-gradient(135deg, rgb(55, 67, 110), rgba(18, 23, 42, 0.56)),
    rgb(27, 30, 49);
  --portfolio-book-page-bg:
    linear-gradient(180deg, rgba(127, 154, 214, 0.08), rgba(43, 54, 92, 0.16)),
    linear-gradient(135deg, rgba(77, 98, 155, 0.16), transparent 40%),
    rgb(49, 57, 84);
  --portfolio-plank-bg:
    linear-gradient(180deg, rgba(176, 203, 255, 0.08), transparent 18%),
    linear-gradient(180deg, rgba(83, 67, 93, 0.98), rgba(56, 43, 67, 0.98));
  --portfolio-plank-shadow: rgba(5, 7, 16, 0.34);
  --portfolio-plank-copy: #f2e7eb;
  --portfolio-tag-fill: rgba(10, 14, 29, 0.86);
  --portfolio-tag-fill-active: rgba(35, 54, 99, 0.92);
  --portfolio-tag-fill-exclude: rgba(12, 9, 24, 0.76);
  --portfolio-thumb-title-fill:
    linear-gradient(180deg, rgba(24, 32, 56, 0.94), rgba(12, 17, 33, 0.86));
  --portfolio-thumb-title-border: rgba(185, 214, 255, 0.2);
  --portfolio-thumb-title-copy: #f4f7ff;
  --portfolio-thumb-tag-fill:
    linear-gradient(180deg, rgba(20, 28, 49, 0.9), rgba(10, 15, 28, 0.82));
  --portfolio-thumb-tag-border: rgba(179, 206, 255, 0.18);
  --portfolio-thumb-tag-copy: rgba(236, 242, 255, 0.94);
  --portfolio-thumb-chip-shadow: rgba(4, 8, 18, 0.38);
  --portfolio-image-well-bg:
    linear-gradient(180deg, rgba(167, 202, 255, 0.08), rgba(29, 39, 72, 0.08)),
    rgb(19, 24, 42);
  --portfolio-image-well-edge: rgba(138, 170, 226, 0.18);
  --portfolio-image-matte: rgb(36, 42, 68);
}

html[data-shell-theme="night"] body.page-portfolio .portfolio-book-shell,
html[data-shell-theme="night"] body.page-portfolio .portfolio-book-page,
body.page-portfolio[data-shell-theme="night"] .portfolio-book-shell,
body.page-portfolio[data-shell-theme="night"] .portfolio-book-page {
  box-shadow:
    inset 0 0 0 1px rgba(138, 170, 226, 0.08),
    0 0.9rem 1.6rem rgba(4, 8, 18, 0.22);
}

html[data-shell-theme="night"] body.page-portfolio .portfolio-tag,
body.page-portfolio[data-shell-theme="night"] .portfolio-tag {
  color: #e7ebff;
  text-shadow: 0 0.06rem 0.18rem rgba(4, 8, 18, 0.45);
}

html[data-shell-theme="night"] body.page-portfolio .portfolio-tag.is-reset-active,
html[data-shell-theme="night"] body.page-portfolio .portfolio-tag.is-include,
body.page-portfolio[data-shell-theme="night"] .portfolio-tag.is-reset-active,
body.page-portfolio[data-shell-theme="night"] .portfolio-tag.is-include {
  color: #fff7ea;
}

html[data-shell-theme="night"] body.page-portfolio .portfolio-tag.is-exclude,
body.page-portfolio[data-shell-theme="night"] .portfolio-tag.is-exclude {
  color: rgba(219, 226, 255, 0.82);
}

html[data-shell-theme="night"] body.page-portfolio .portfolio-preview-kicker,
html[data-shell-theme="night"] body.page-portfolio .portfolio-preview-title,
html[data-shell-theme="night"] body.page-portfolio .portfolio-preview-caption,
html[data-shell-theme="night"] body.page-portfolio .portfolio-lightbox-title,
html[data-shell-theme="night"] body.page-portfolio .portfolio-lightbox-caption,
html[data-shell-theme="night"] body.page-portfolio .portfolio-thumb-title,
html[data-shell-theme="night"] body.page-portfolio .portfolio-thumb-tag,
html[data-shell-theme="night"] body.page-portfolio .portfolio-page-indicator,
body.page-portfolio[data-shell-theme="night"] .portfolio-preview-kicker,
body.page-portfolio[data-shell-theme="night"] .portfolio-preview-title,
body.page-portfolio[data-shell-theme="night"] .portfolio-preview-caption,
body.page-portfolio[data-shell-theme="night"] .portfolio-lightbox-title,
body.page-portfolio[data-shell-theme="night"] .portfolio-lightbox-caption,
body.page-portfolio[data-shell-theme="night"] .portfolio-thumb-title,
body.page-portfolio[data-shell-theme="night"] .portfolio-thumb-tag,
body.page-portfolio[data-shell-theme="night"] .portfolio-page-indicator {
  text-shadow:
    0 0.08rem 0.22rem rgba(5, 8, 16, 0.42),
    0 0 0.7rem rgba(86, 113, 183, 0.08);
}