/* ============================================================================
   PORTFOLIO — the garage screen. Twelve real cars, filterable, each one a
   bevelled HUD panel wrapped around the photograph rather than over it.
   Every card owns ONE accent channel (--build-accent), inherited from the
   service it was booked as: the grid reads colourful because the cars differ,
   never because a single card is loud.

   backdrop-filter budget: this section adds ZERO. The only blur in play is the
   shared .modal (scrim + panel--glass), and that only exists while it is open.
   ========================================================================= */

/* ---------------------------------------------------------------- head */
.portfolio__intro {
  display: grid;
  gap: var(--sp-4);
  justify-items: start;
  max-width: 640px;
}

/* the live readout — "12 / 12 BUILDS". JS only ever rewrites the first number */
.portfolio__hud {
  display: grid;
  justify-items: end;
  gap: 2px;
  padding-left: var(--sp-5);
  border-left: 1px solid var(--line);
}
.portfolio__count {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--f-display);
  font-size: clamp(2rem, 3.4vw, 3.2rem);
  font-weight: 800;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.portfolio__count-n {
  color: var(--text);
  min-width: 2ch; /* 12 -> 9 -> 1 must not shove the slash around */
  text-align: right;
}
.portfolio__count-sep,
.portfolio__count-total {
  color: var(--text-ghost);
}

/* ---------------------------------------------------------------- filters */
.portfolio__filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-6);
  padding-bottom: var(--sp-5);
  border-bottom: 1px solid var(--line);
}
.portfolio__filters .chip {
  padding: 9px 15px;
  cursor: pointer;
}

/* ---------------------------------------------------------------- grid
   The maths is written out in full in src/partials/portfolio.html.
   Short version: 9 standard cells + 3 featured cells of 2 = 15, and 15 only
   divides by 3 — so the wide layout is three columns, never four.           */
.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 1.5vw, 24px);
}

/* ---------------------------------------------------------------- card
   --cut is left alone: .panel sets its own 14px and the media re-cuts the
   matching corner below, so the hairline stays even on the diagonal.        */
.build {
  --build-accent: var(--cy);
  position: relative;
  display: flex;
  flex-direction: column;
}
.build--mg {
  --build-accent: var(--mg);
}
.build--li {
  --build-accent: var(--li);
}
.build--go {
  --build-accent: var(--go);
}
.build--vi {
  --build-accent: var(--vi);
}

/* every bar on the card runs in the card's own channel — colour is data here,
   not decoration: you can read the service off the bars from across the room */
.build .bar {
  --bar-col: var(--build-accent);
}

/* hover/focus is a STATE: the panel hairline picks up the card's channel */
.build:hover,
.build:focus-within {
  --panel-line: linear-gradient(
    150deg,
    color-mix(in oklab, var(--build-accent) 62%, transparent),
    color-mix(in oklab, var(--build-accent) 16%, transparent) 58%,
    color-mix(in oklab, var(--build-accent) 48%, transparent)
  );
}
/* a featured build keeps the brand signature even while hot */
.build--featured:hover,
.build--featured:focus-within {
  --panel-line: var(--holo);
}

/* ---------------------------------------------------------------- media */
.build__media {
  position: relative;
  flex: none;
  min-height: 0;
  aspect-ratio: 4 / 3;
  /* re-cut the top-left corner so the photo never eats the panel's hairline */
  clip-path: polygon(var(--cut) 0, 100% 0, 100% 100%, 0 100%, 0 var(--cut));
}
/* the zoom follows the whole card, not just the photo under the cursor */
.build:hover .build__media img,
.build:focus-within .build__media img {
  transform: scale(1.06);
}

/* top scrim. .media::after already darkens the bottom; this is what makes the
   make/model legible over a bright sky at the top of the frame. */
.build__scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    color-mix(in oklab, var(--ink-950) 72%, transparent) 0%,
    transparent 34%
  );
}

/* --------------------------------------------------------- top overlay */
.build__top {
  position: absolute;
  top: var(--sp-4);
  left: var(--sp-4);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--sp-2);
  /* leave the top-right corner clear for the open tag */
  padding-right: 52px;
  max-width: 100%;
}
.build__marque {
  display: grid;
  gap: 1px;
  min-width: 0;
}
.build__make {
  font-family: var(--f-display);
  font-size: var(--fs-h3);
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--text);
  text-shadow: 0 6px 20px color-mix(in oklab, var(--ink-950) 72%, transparent);
}
.build__model {
  font-family: var(--f-hud);
  font-size: var(--fs-hud);
  font-weight: 600;
  letter-spacing: var(--track-hud);
  text-transform: uppercase;
  color: var(--text-soft);
  text-shadow: 0 4px 14px color-mix(in oklab, var(--ink-950) 78%, transparent);
}

/* the service chip here is a LABEL, not a control — no aria-pressed, no glow at
   rest. It lifts with the card so it still reads as part of the same object. */
.build__svc {
  background: color-mix(in oklab, var(--ink-950) 74%, transparent);
  border-color: var(--line-strong);
  transition: color var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
}
.build:hover .build__svc,
.build:focus-within .build__svc {
  color: var(--build-accent);
  border-color: color-mix(in oklab, var(--build-accent) 55%, transparent);
  box-shadow: 0 0 18px -6px var(--build-accent);
}

/* ------------------------------------------------------ bottom overlay */
.build__hud {
  position: absolute;
  right: var(--sp-4);
  bottom: var(--sp-4);
  left: var(--sp-4);
  z-index: 2;
  display: grid;
  gap: var(--sp-3);
}
.build__title {
  font-size: var(--fs-h3);
  line-height: 1;
  color: var(--text);
  text-shadow: 0 8px 24px color-mix(in oklab, var(--ink-950) 80%, transparent);
}
.build__spec {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-2) var(--sp-4);
  padding-top: var(--sp-3);
  border-top: 1px solid var(--line-strong);
}
.build__spec > div {
  display: grid;
  gap: 1px;
  min-width: 0;
}
.build__spec dt {
  font-family: var(--f-hud);
  font-size: var(--fs-micro);
  font-weight: 600;
  letter-spacing: var(--track-hud);
  text-transform: uppercase;
  color: var(--text-faint);
}
.build__spec dd {
  font-family: var(--f-hud);
  font-size: var(--fs-hud);
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.35;
  color: var(--text-soft);
  overflow-wrap: anywhere;
}

/* ---------------------------------------------------------------- body */
.build__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--sp-3);
  padding: var(--sp-5);
}

/* ---------------------------------------------------------- open control
   The whole card is the hit area; the tag is the affordance. Muted at rest,
   lit on hover/focus — the glow is state, not ornament.                     */
.build__open {
  position: absolute;
  inset: 0;
  z-index: 5;
  cursor: pointer;
}
/* the card is clipped, so a default outline would be clipped clean off it
   (ui-motifs #17). Draw the focus ring INSIDE the silhouette instead. */
.build__open:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--cy), inset 0 0 40px -12px var(--cy);
}
.build__open-tag {
  --cut: 8px;
  position: absolute;
  top: var(--sp-3);
  right: var(--sp-3);
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  clip-path: var(--clip-bevel);
  background: color-mix(in oklab, var(--ink-950) 78%, transparent);
  box-shadow: inset 0 0 0 1px var(--line-strong);
  color: var(--text-dim);
  transition: color var(--t) var(--ease-out), box-shadow var(--t) var(--ease-out),
    transform var(--t) var(--ease-snap);
}
.build__open-tag svg {
  width: 16px;
  height: 16px;
}
.build:hover .build__open-tag,
.build__open:focus-visible .build__open-tag {
  color: var(--build-accent);
  box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--build-accent) 60%, transparent),
    0 0 20px -6px var(--build-accent);
  transform: rotate(90deg);
}

/* ------------------------------------------------------------- featured
   Twice the cell, twice the photograph. It also carries the holo hairline and
   the corner brackets — the three markers only ever land on a featured build. */
.build--featured {
  grid-column: span 2;
}
/* The media MUST keep a definite box. With `flex: 1 1 auto; aspect-ratio: auto`
   the flex base size is the image's own content height, so a portrait photo
   (5 of the 12 are portrait) drove the whole grid row to ~1500px and left its
   row-mate as a near-empty panel. A fixed ratio makes the row height ours, not
   the photograph's. Do not swap this for `flex: 1 1 0` — a featured card alone
   in a row would then collapse its media to zero height. */
.build--featured .build__media {
  flex: none;
  aspect-ratio: 21 / 9;
}
.build--featured .build__title {
  font-size: calc(var(--fs-h3) * 1.25);
}
.build--featured .build__make {
  font-size: calc(var(--fs-h3) * 1.15);
}
.build--featured .build__spec {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.build--featured .build__top,
.build--featured .build__hud {
  inset-inline: var(--sp-5);
}
.build--featured .build__top {
  top: var(--sp-5);
  right: auto;
  padding-right: 60px;
}
.build--featured .build__hud {
  bottom: var(--sp-5);
}

/* p04 is the one bright daylight forecourt frame in the set. It is not
   featured, and it gets a deeper scrim + a touch of grade so it sits in the
   same dark studio as the other eleven instead of shouting out of the grid. */
.build--daylight .build__media img {
  filter: saturate(0.88) brightness(0.84) contrast(1.06);
}
.build--daylight .build__scrim {
  background: linear-gradient(
    180deg,
    color-mix(in oklab, var(--ink-950) 78%, transparent) 0%,
    color-mix(in oklab, var(--ink-950) 34%, transparent) 42%,
    color-mix(in oklab, var(--ink-950) 62%, transparent) 100%
  );
}
.build--daylight:hover .build__media img,
.build--daylight:focus-within .build__media img {
  filter: saturate(0.95) brightness(0.92) contrast(1.04);
}

/* ------------------------------------------------------------- filtering
   Cards leave on opacity + transform, then — and only once the transition has
   finished — take display:none (.is-gone) so the grid can re-tile. Never
   display:none WITH a transition: that skips straight to the end frame.      */
.build.is-out {
  opacity: 0;
  transform: translateY(10px) scale(0.97);
  pointer-events: none;
  transition: opacity var(--t) var(--ease-out), transform var(--t) var(--ease-out);
}
.build.is-gone {
  display: none;
}

/* a filtered set is an arbitrary length, so the double-wide cell is retired:
   at span 1 no subset can ever strand an empty cell in the middle of a row.  */
.portfolio__grid.is-filtered .build--featured {
  grid-column: span 1;
}
.portfolio__grid.is-filtered .build--featured .build__media {
  flex: none;
  aspect-ratio: 4 / 3;
}
.portfolio__grid.is-filtered .build--featured .build__spec {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.portfolio__grid.is-filtered .build--featured .build__top,
.portfolio__grid.is-filtered .build--featured .build__hud {
  inset-inline: var(--sp-4);
}
.portfolio__grid.is-filtered .build--featured .build__top {
  top: var(--sp-4);
  right: auto;
  padding-right: 52px;
}
.portfolio__grid.is-filtered .build--featured .build__hud {
  bottom: var(--sp-4);
}

/* ---------------------------------------------------------- empty state */
.portfolio__empty {
  --cut: 16px;
  margin-top: var(--sp-5);
}
.portfolio__empty-body {
  display: grid;
  justify-items: center;
  gap: var(--sp-3);
  padding: var(--sp-8) var(--sp-5);
  text-align: center;
}
.portfolio__empty-icon {
  width: 30px;
  height: 30px;
  color: var(--text-ghost);
}
.portfolio__empty-title {
  font-family: var(--f-hud);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: var(--track-hud);
  text-transform: uppercase;
  color: var(--text);
}
.portfolio__empty .btn {
  margin-top: var(--sp-2);
}

/* ============================================================== lightbox
   Same object, opened up: the photo keeps the frame, the HUD gets the room it
   never had in a 450px cell.                                                 */
.build-modal {
  --build-accent: var(--cy);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: var(--sp-6);
  align-items: start;
}
.build-modal--mg {
  --build-accent: var(--mg);
}
.build-modal--li {
  --build-accent: var(--li);
}
.build-modal--go {
  --build-accent: var(--go);
}
.build-modal--vi {
  --build-accent: var(--vi);
}
.build-modal .bar {
  --bar-col: var(--build-accent);
}

.build-modal__media {
  --cut: 10px;
  position: relative;
  aspect-ratio: 4 / 3;
  clip-path: var(--clip-bevel);
}
.build-modal__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.build-modal__svc {
  position: absolute;
  top: var(--sp-3);
  left: var(--sp-3);
  z-index: 2;
}

.build-modal__body {
  display: grid;
  gap: var(--sp-4);
  align-content: start;
  min-width: 0;
}
.build-modal__marque {
  font-family: var(--f-hud);
  font-size: var(--fs-hud);
  font-weight: 600;
  letter-spacing: var(--track-wide);
  text-transform: uppercase;
  color: var(--build-accent);
}
.build-modal__title {
  font-size: var(--fs-h2);
  line-height: 0.95;
}

/* spec table — a real table, because that is what it is */
.build-modal__spec {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--f-hud);
  text-align: left;
}
.build-modal__spec th,
.build-modal__spec td {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  vertical-align: baseline;
}
.build-modal__spec th {
  width: 40%;
  font-size: var(--fs-hud);
  font-weight: 600;
  letter-spacing: var(--track-hud);
  text-transform: uppercase;
  color: var(--text-faint);
}
.build-modal__spec td {
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text);
  overflow-wrap: anywhere;
}
.build-modal__spec tr:last-child th,
.build-modal__spec tr:last-child td {
  border-bottom: 0;
}

.build-modal__stats {
  display: grid;
  gap: var(--sp-3);
}

/* prev / next — they walk the CURRENTLY FILTERED list, so the readout is
   "03 / 07" when a filter is on, not "03 / 12" */
.build-modal__nav {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--line);
}
.build-modal__step {
  --cut: 8px;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: none;
  clip-path: var(--clip-bevel);
  background: var(--glass-hi);
  box-shadow: inset 0 0 0 1px var(--line-strong);
  color: var(--text-soft);
  transition: color var(--t-fast), background var(--t-fast), transform var(--t-fast) var(--ease-out);
}
.build-modal__step svg {
  width: 16px;
  height: 16px;
}
.build-modal__step--prev svg {
  rotate: 180deg;
}
.build-modal__step:hover,
.build-modal__step:focus-visible {
  color: var(--ink-950);
  background: var(--build-accent);
  transform: translateY(-2px);
}
/* bevelled -> the outline would be clipped away; ring it from the inside */
.build-modal__step:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--ink-950);
}
.build-modal__pos {
  font-family: var(--f-hud);
  font-size: var(--fs-xs);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: var(--track-hud);
  color: var(--text-dim);
}
.build-modal__pos b {
  color: var(--text);
}
.build-modal__cta {
  margin-left: auto;
}

/* ============================================================== responsive */

/* ---- 2 columns: the double-wide cell retires (see the maths comment) ---- */
@media (max-width: 1024px) {
  .portfolio__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .build--featured {
    grid-column: span 1;
  }
  .build--featured .build__media {
    flex: none;
    aspect-ratio: 4 / 3;
  }
  .build--featured .build__spec {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .build--featured .build__top,
  .build--featured .build__hud {
    inset-inline: var(--sp-4);
  }
  .build--featured .build__top {
    top: var(--sp-4);
    right: auto;
    padding-right: 52px;
  }
  .build--featured .build__hud {
    bottom: var(--sp-4);
  }

  .build-modal {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--sp-5);
  }
  .build-modal__media {
    aspect-ratio: 16 / 10;
  }
}

@media (max-width: 900px) {
  .portfolio__hud {
    padding-left: 0;
    border-left: 0;
    justify-items: start;
  }
}

/* ---- 1 column ---- */
@media (max-width: 640px) {
  .portfolio__grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .build__media,
  .build--featured .build__media {
    aspect-ratio: 16 / 11;
  }
  .build-modal__cta {
    margin-left: 0;
  }
  .build-modal__nav {
    flex-wrap: wrap;
  }
  .build-modal__cta {
    flex: 1 0 100%;
  }
}

@media (max-width: 420px) {
  .build__body {
    padding: var(--sp-4);
  }
  .build__top,
  .build__hud,
  .build--featured .build__top,
  .build--featured .build__hud {
    inset-inline: var(--sp-3);
  }
  .build__top,
  .build--featured .build__top {
    top: var(--sp-3);
    right: auto;
    padding-right: 48px;
  }
  .build__hud,
  .build--featured .build__hud {
    bottom: var(--sp-3);
  }
  .build__spec {
    gap: var(--sp-2) var(--sp-3);
  }
  .portfolio__filters .chip {
    padding: 8px 12px;
  }
}

/* ============================================================== motion off
   Everything lands on its END state: cards visible, bars full, nothing blank. */
@media (prefers-reduced-motion: reduce) {
  .build.is-out {
    transition: none;
  }
  .build__open-tag,
  .build:hover .build__media img,
  .build:focus-within .build__media img {
    transform: none;
  }
  .build:hover .build__open-tag,
  .build__open:focus-visible .build__open-tag {
    transform: none;
  }
}