/* Stage 4 — interior selections (doors + floors). */

.sel-hero { padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 3vw, 2.25rem); }
.sel-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: start;
}
.sel-hero h1 { margin: .5rem 0 0; max-width: 22ch; }
.sel-lede p { color: var(--ink-70, #4a5052); margin: 0 0 .85rem; }
.sel-lede p:last-child { margin-bottom: 0; }

/* ---------------------------------------------------------- stage layout */

.sel-stage-sec { padding-block: 0 clamp(2rem, 5vw, 3.5rem); }
.sel-stage {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.15fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}
.sel-side { position: sticky; top: 5.5rem; display: grid; gap: 1rem; }

.sel-view { margin: 0; border: var(--hair, 1px) solid var(--rule, #c9c4b6); background: var(--paper-2, #f1eee5); }
.sel-view img { display: block; width: 100%; height: auto; }
.sel-view-cap {
  display: flex; justify-content: space-between; gap: 1rem; align-items: baseline;
  padding: .6rem .8rem;
  border-top: var(--hair, 1px) solid var(--rule, #c9c4b6);
  font-size: var(--t-xs, .6875rem); text-transform: uppercase; letter-spacing: .08em;
}
.sel-view-note { color: var(--ink-50, #767b7c); }

.sel-picked { border: var(--hair, 1px) solid var(--rule, #c9c4b6); padding: .95rem 1rem 1rem; background: var(--paper-2, #f1eee5); }
.sel-picked-h {
  display: block; color: var(--ink-50, #767b7c); text-transform: uppercase;
  letter-spacing: .09em; font-size: var(--t-xs, .6875rem); margin-bottom: .7rem;
}
.sel-picked-row {
  display: grid; grid-template-columns: 4.6rem 1fr; gap: .8rem; align-items: baseline;
  padding: .45rem 0; border-top: var(--hair, 1px) solid var(--rule, #c9c4b6);
}
.sel-picked-row .mono {
  color: var(--ink-50, #767b7c); text-transform: uppercase;
  letter-spacing: .07em; font-size: var(--t-xs, .6875rem);
}
.sel-picked-row > span:last-child { font-size: var(--t-sm, .8125rem); line-height: 1.4; }
.sel-picked-note { margin: .8rem 0 0; color: var(--ink-50, #767b7c); font-size: var(--t-xs, .6875rem); line-height: 1.5; letter-spacing: .04em; }

/* ---------------------------------------------------------- control blocks */

.sel-controls { display: grid; gap: clamp(1.5rem, 3vw, 2.25rem); }
.sel-block { border-top: var(--hair, 1px) solid var(--rule, #c9c4b6); padding-top: 1.1rem; }
.sel-block:first-child { border-top: 0; padding-top: 0; }
.sel-block-h { display: grid; grid-template-columns: 2.5rem minmax(0, 1fr); gap: .5rem; align-items: start; }
.sel-num { color: var(--tan, #b08d57); font-size: var(--t-xs, .6875rem); padding-top: .35rem; }
.sel-block-h h2 { margin: 0 0 .35rem; font-size: clamp(1.15rem, 2.2vw, 1.45rem); }
.sel-block-h .desc { margin: 0; color: var(--ink-70, #4a5052); font-size: var(--t-sm, .8125rem); line-height: 1.6; max-width: 52ch; }

.sel-hint { color: var(--ink-50, #767b7c); font-size: var(--t-xs, .6875rem); line-height: 1.55; margin: .7rem 0 0; }

/* colourway swatches */
.swatch-row { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.swatch {
  display: grid; justify-items: center; gap: .3rem;
  padding: .55rem .5rem .45rem; min-width: 5.25rem;
  background: transparent; cursor: pointer;
  border: var(--hair, 1px) solid var(--rule, #c9c4b6);
  transition: border-color .15s ease, background .15s ease;
}
.swatch:hover { border-color: var(--ink, #14181a); }
.swatch.is-on { border-color: var(--ink, #14181a); background: var(--paper-2, #f1eee5); box-shadow: inset 0 0 0 1px var(--ink, #14181a); }
.swatch-dot { width: 2rem; height: 2rem; border-radius: 50%; border: var(--hair, 1px) solid rgba(0,0,0,.18); }
.swatch-name { font-size: var(--t-xs, .6875rem); line-height: 1.2; text-align: center; }
.swatch-code { color: var(--ink-50, #767b7c); font-size: .625rem; letter-spacing: .08em; }

/* option cards (doors, floors) */
.opt-row { display: grid; gap: .5rem; margin-top: 1rem; }
.opt {
  display: grid; gap: .25rem; text-align: left; cursor: pointer;
  padding: .8rem .9rem; background: transparent;
  border: var(--hair, 1px) solid var(--rule, #c9c4b6);
  transition: border-color .15s ease, background .15s ease;
}
.opt:hover { border-color: var(--ink, #14181a); }
.opt.is-on { border-color: var(--ink, #14181a); background: var(--paper-2, #f1eee5); box-shadow: inset 0 0 0 1px var(--ink, #14181a); }
.opt-name { font-weight: 500; font-size: .9375rem; }
.opt-meta { color: var(--ink-70, #4a5052); font-size: var(--t-xs, .6875rem); line-height: 1.55; }

.opt.is-floor { grid-template-columns: 2.25rem minmax(0, 1fr); grid-template-rows: auto auto auto; column-gap: .75rem; align-items: center; }
.opt-swatch { grid-row: 1 / 4; width: 2.25rem; height: 2.25rem; border: var(--hair, 1px) solid rgba(0,0,0,.18); align-self: center; }

/* ---------------------------------------------------------- responsive */

@media (max-width: 900px) {
  .sel-hero-grid { grid-template-columns: 1fr; gap: 1.25rem; }
  .sel-stage { grid-template-columns: 1fr; }
  .sel-side { position: static; }
}

@media (max-width: 560px) {
  .sel-block-h { grid-template-columns: 1fr; gap: .15rem; }
  .sel-num { padding-top: 0; }
  .swatch { flex: 1 1 5rem; min-width: 4.5rem; }
  .opt.is-floor { grid-template-columns: 1.75rem minmax(0, 1fr); column-gap: .6rem; }
  .opt-swatch { width: 1.75rem; height: 1.75rem; }
}