/* ============================================================
   Build Your System — wizard styles.
   Inherits the dark/lime theme tokens from the landing styles.css
   (loaded first), so :root vars like --accent are available here.
   ============================================================ */

.bld { padding: 56px 0 100px; min-height: 70vh; }

/* Header */
.bld-head { text-align: center; max-width: 720px; margin: 0 auto 40px; }
.bld-head__title {
  font-size: clamp(38px, 6vw, 68px);
  line-height: 1.04; letter-spacing: -.03em; font-weight: 800;
  margin: 22px 0 16px;
}
.bld-head__sub { color: var(--muted); font-size: 18px; margin: 0; }

/* Step indicator */
.bld-steps {
  display: flex; justify-content: center; flex-wrap: wrap;
  gap: 14px; margin: 0 0 36px; padding: 0; list-style: none;
  counter-reset: bstep;
}
.bld-steps li {
  display: flex; align-items: center; gap: 10px;
  font-size: 14px; font-weight: 600; color: var(--muted-2);
  padding: 8px 16px; border: 1px solid var(--border); border-radius: 999px;
  background: var(--surface);
  transition: color .3s var(--ease), border-color .3s var(--ease);
}
.bld-steps li::before {
  counter-increment: bstep; content: counter(bstep);
  width: 22px; height: 22px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--surface-2); color: var(--muted);
  font-size: 12px; font-weight: 700;
  transition: background .3s var(--ease), color .3s var(--ease);
}
.bld-steps li.is-active { color: var(--text); border-color: var(--accent); }
.bld-steps li.is-active::before { background: var(--accent); color: #0b0b0d; }
.bld-steps li.is-done::before { background: var(--accent-2); color: #0b0b0d; content: "✓"; }

/* Layout (single column — pricing/estimate removed) */
.bld-layout { max-width: 820px; margin: 0 auto; }

/* Panels (steps) */
.bld-panel { display: none; border: 0; padding: 0; margin: 0; min-inline-size: auto; }
.bld-panel.is-active { display: block; animation: bld-fade .45s var(--ease) both; }
@keyframes bld-fade { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.bld-panel legend {
  font-size: 22px; font-weight: 800; letter-spacing: -.02em;
  margin-bottom: 22px; padding: 0; width: 100%;
}
.bld-panel legend span {
  display: block; font-size: 14px; font-weight: 500;
  color: var(--muted); margin-top: 6px;
}

/* Option cards */
.bld-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.bld-grid--sm { grid-template-columns: 1fr 1fr; }
.bld-card {
  position: relative;
  display: flex; align-items: center; gap: 14px;
  padding: 18px 18px; cursor: pointer;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: border-color .2s var(--ease), transform .2s var(--ease), background .2s var(--ease);
}
.bld-card:hover { transform: translateY(-3px); border-color: var(--border-2); }
.bld-card input { position: absolute; opacity: 0; pointer-events: none; }
.bld-card__icon { font-size: 26px; line-height: 1; flex: 0 0 auto; }
.bld-card__body { display: flex; flex-direction: column; gap: 3px; flex: 1; min-width: 0; }
.bld-card__name { font-weight: 700; font-size: 16px; }
.bld-card__desc { font-size: 13px; color: var(--muted); }
.bld-card__price {
  font-size: 13px; font-weight: 700; color: var(--accent);
  white-space: nowrap; flex: 0 0 auto;
}
.bld-card__tick {
  position: absolute; top: 12px; right: 12px;
  width: 22px; height: 22px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--accent); color: #0b0b0d;
  font-size: 13px; font-weight: 800;
  opacity: 0; transform: scale(.5);
  transition: opacity .2s var(--ease), transform .2s var(--ease);
}
.bld-card--sm { padding: 14px 16px; }
.bld-card--sm .bld-card__icon { font-size: 22px; }
.bld-card--sm .bld-card__name { font-size: 15px; }

/* Selected state (modern :has) + JS fallback class .is-checked */
.bld-card:has(input:checked),
.bld-card.is-checked {
  border-color: var(--accent);
  background: rgba(200,255,77,.06);
}
.bld-card:has(input:checked) .bld-card__tick,
.bld-card.is-checked .bld-card__tick { opacity: 1; transform: scale(1); }

/* Reveal sub-option groups (platforms / modules) — highlighted section */
.bld-subs {
  display: none;
  margin-top: 14px;
  padding: 20px 20px 8px 22px;
  border: 1px solid var(--border-2);
  border-left: 3px solid var(--accent);
  border-radius: 14px;
  background:
    linear-gradient(180deg, rgba(200,255,77,.05), rgba(200,255,77,.015)),
    var(--surface);
}
.bld-subs.is-open { display: block; animation: bld-fade .35s var(--ease) both; }
.bld-subs__label {
  font-size: 13px; font-weight: 800; letter-spacing: .02em;
  color: var(--accent); margin-bottom: 16px; text-transform: uppercase;
  display: flex; align-items: center; gap: 8px;
}

/* Question groups (revealed per option / sub) */
.bld-qs {
  display: block;
  margin: 4px 0 14px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
}
.bld-qs[id] { display: none; }            /* per-sub blocks hidden until revealed */
.bld-qs[id].is-open { display: block; animation: bld-fade .3s var(--ease) both; }
.bld-qs--type { background: transparent; border: 0; padding: 0; margin: 6px 0 0; }
.bld-qs__title {
  font-size: 13px; font-weight: 700; color: var(--text);
  margin-bottom: 12px; display: flex; align-items: center; gap: 7px;
}

/* Individual question */
.bld-q { display: flex; flex-direction: column; gap: 7px; margin-bottom: 14px; }
.bld-q:last-child { margin-bottom: 4px; }
.bld-q__label { font-size: 14px; font-weight: 600; color: var(--text); }
.bld-q__select, .bld-q__input {
  background: var(--bg);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  padding: 10px 13px;
  color: var(--text);
  font-family: inherit; font-size: 14.5px;
  max-width: 320px;
}
.bld-qs--type .bld-q__select, .bld-qs--type .bld-q__input { background: var(--surface); }
.bld-q__select:focus, .bld-q__input:focus { outline: none; border-color: var(--accent); }
.bld-q__select { appearance: none; cursor: pointer; }
.bld-q__unsure {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; color: var(--muted); cursor: pointer;
}
.bld-q__unsure input { width: 15px; height: 15px; accent-color: var(--accent); }

/* ---- Details accordion (step 2) ---- */
.bld-empty { color: var(--muted-2); font-size: 15px; text-align: center; padding: 30px 0; }
.bld-acc-wrap { display: flex; flex-direction: column; gap: 12px; }
.bld-acc {
  display: none;
  border: 1px solid var(--border-2);
  border-left: 3px solid var(--accent);
  border-radius: 14px;
  overflow: hidden;
  background: var(--surface);
}
.bld-acc.is-active { display: block; animation: bld-fade .35s var(--ease) both; }
.bld-acc__head {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  background: none; border: 0; cursor: pointer;
  color: var(--text); font-family: inherit;
  font-size: 16px; font-weight: 700; letter-spacing: -.01em;
  text-align: left;
}
.bld-acc__title { display: flex; align-items: center; gap: 10px; }
.bld-acc__chev { color: var(--accent); transition: transform .3s var(--ease); font-size: 14px; }
.bld-acc.is-open .bld-acc__chev { transform: rotate(180deg); }
.bld-acc__body {
  display: none;
  padding: 4px 20px 20px;
  border-top: 1px solid var(--border);
}
.bld-acc.is-open .bld-acc__body { display: block; animation: bld-fade .3s var(--ease) both; }
.bld-acc__body .bld-grid--sm { margin-top: 14px; }

/* ---- Reference works picker (step 3) ---- */
.bld-works { margin: 26px 0 4px; }
.bld-works__label {
  font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 14px;
}
.bld-card--work .bld-card__icon { width: 40px; height: 40px; border-radius: 9px; overflow: hidden; display: grid; place-items: center; background: var(--surface-2); }
.bld-work-thumb { width: 100%; height: 100%; object-fit: cover; }
.bld-subs__field { display: flex; flex-direction: column; gap: 7px; margin-top: 14px; }
.bld-subs__field label { font-size: 13px; font-weight: 600; color: var(--muted); }
.bld-subs__field .bld-opt { font-weight: 400; color: var(--muted-2); }
.bld-subs__field input,
.bld-subs__field textarea {
  background: var(--bg);
  border: 1px solid var(--border-2);
  border-radius: 12px;
  padding: 11px 14px;
  color: var(--text);
  font-family: inherit; font-size: 14.5px;
  transition: border-color .2s var(--ease);
}
.bld-subs__field input:focus,
.bld-subs__field textarea:focus { outline: none; border-color: var(--accent); }
.bld-subs__field textarea { resize: vertical; }

/* Fields */
.bld-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.bld-field { display: flex; flex-direction: column; gap: 7px; }
.bld-field--full { grid-column: 1 / -1; }
.bld-field label { font-size: 13px; font-weight: 600; color: var(--muted); }
.bld-field input,
.bld-field select,
.bld-field textarea {
  background: var(--bg);
  border: 1px solid var(--border-2);
  border-radius: 12px;
  padding: 13px 16px;
  color: var(--text);
  font-family: inherit; font-size: 15px;
  transition: border-color .2s var(--ease);
}
.bld-field input:focus,
.bld-field select:focus,
.bld-field textarea:focus { outline: none; border-color: var(--accent); }
.bld-field textarea { resize: vertical; }
.bld-field select { appearance: none; cursor: pointer; }

/* Step nav buttons */
.bld-nav { display: flex; justify-content: space-between; gap: 14px; margin-top: 30px; }

/* Summary / live estimate */
.bld-summary { position: sticky; top: 96px; }
.bld-summary__card {
  background:
    radial-gradient(circle at 100% 0%, rgba(200,255,77,.10), transparent 55%),
    var(--surface);
  border: 1px solid var(--border-2);
  border-radius: 20px;
  padding: 26px;
}
.bld-summary__label { font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.bld-summary__total { font-size: 16px; color: var(--muted); margin: 10px 0 4px; }
.bld-summary__total strong { display: block; font-size: 40px; font-weight: 800; letter-spacing: -.02em; color: var(--text); }
.bld-summary__count { font-size: 13px; color: var(--muted-2); margin-bottom: 16px; }
.bld-summary__list { list-style: none; margin: 0 0 16px; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.bld-summary__list li {
  display: flex; justify-content: space-between; gap: 10px;
  font-size: 13.5px; color: var(--text);
  padding-bottom: 8px; border-bottom: 1px solid var(--border);
}
.bld-summary__list li span:last-child { color: var(--accent); font-weight: 700; }
.bld-summary__note { font-size: 12px; color: var(--muted-2); margin: 0; }

/* Success state */
.bld-done { max-width: 560px; margin: 40px auto; text-align: center; }
.bld-done__check {
  width: 64px; height: 64px; border-radius: 50%;
  display: grid; place-items: center; margin: 0 auto 18px;
  background: var(--accent); color: #0b0b0d; font-size: 32px; font-weight: 800;
}
.bld-done__ref {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .08em;
  color: var(--accent); border: 1px solid var(--border-2);
  border-radius: 999px; padding: 5px 14px; margin-bottom: 16px;
}
.bld-done h1 { font-size: 34px; font-weight: 800; letter-spacing: -.02em; margin: 0 0 10px; }
.bld-done p { color: var(--muted); font-size: 16px; }
.bld-done__total {
  display: inline-flex; flex-direction: column; gap: 2px;
  margin: 20px auto; padding: 20px 36px;
  border: 1px solid var(--border-2); border-radius: 18px; background: var(--surface);
}
.bld-done__total span { font-size: 13px; color: var(--muted); }
.bld-done__total strong { font-size: 38px; font-weight: 800; letter-spacing: -.02em; }
.bld-done__note { font-size: 14.5px; }
.bld-done__cta { display: flex; gap: 12px; justify-content: center; margin-top: 26px; flex-wrap: wrap; }

/* Responsive */
@media (max-width: 900px) {
  .bld-layout { grid-template-columns: 1fr; }
  .bld-summary { position: static; order: -1; }
  .bld-summary__card { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
  .bld-summary__list, .bld-summary__note { display: none; }
  .bld-summary__total { margin: 0; }
  .bld-summary__total strong { display: inline; font-size: 28px; }
}
@media (max-width: 620px) {
  .bld { padding: 40px 0 72px; }
  /* keep option cards 2-up on mobile */
  .bld-grid, .bld-grid--sm { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .bld-fields { grid-template-columns: 1fr; }
  .bld-card { flex-direction: column; align-items: flex-start; gap: 8px; padding: 14px 12px; text-align: left; }
  .bld-card--sm { padding: 12px 12px; }
  .bld-card__name { font-size: 14px; }
  .bld-card__desc { font-size: 12px; }
  .bld-card__tick { top: 10px; right: 10px; }
  .bld-steps li { padding: 7px 12px; font-size: 12.5px; }
  .bld-q__select, .bld-q__input { max-width: none; }
}