:root {
  --bg: #f6f4ef;
  --fg: #1d1d1b;
  --muted: #6d6a62;
  --line: #d8d3c5;
  --accent: #b04a2f;
  --accent-fg: #fff;
  --warn-bg: #fff3e6;
  --warn-fg: #8a4500;
  --card: #fff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.45;
}

.wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.fineprint { font-size: 0.8rem; color: var(--muted); margin: 8px 0 0; }

.topbar {
  background: var(--fg);
  color: #f6f4ef;
  padding: 16px 0;
  margin-bottom: 28px;
}
.topbar .brand { font-weight: 700; letter-spacing: .02em; }
.topbar .brand-sub { font-size: .85rem; color: #b9b3a4; }

.layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 28px;
  align-items: start;
}
@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; }
  .summary { position: static; }
}

.step-pane {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 24px;
  min-height: 360px;
}

.stepper {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
  font-size: .8rem;
}
.stepper .pip {
  border: 1px solid var(--line);
  padding: 4px 10px;
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
}
.stepper .pip.done { background: var(--fg); color: #fff; border-color: var(--fg); }
.stepper .pip.current { border-color: var(--accent); color: var(--accent); font-weight: 600; }

h1 { font-size: 1.4rem; margin: 0 0 4px; }
h2 { font-size: 1rem; margin: 0 0 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }

.opt {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 14px;
  margin-bottom: 8px;
  background: #fff;
  cursor: pointer;
}
.opt:hover { border-color: var(--accent); }
.opt.selected { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.opt.disabled { opacity: .5; cursor: not-allowed; }
.opt input { margin-top: 4px; }
.opt .info { flex: 1; }
.opt .name { font-weight: 600; }
.opt .desc { font-size: .85rem; color: var(--muted); margin-top: 2px; }
.opt .price { font-variant-numeric: tabular-nums; font-weight: 600; white-space: nowrap; }
.opt .conflict { font-size: .8rem; color: var(--warn-fg); margin-top: 4px; }

.nav { display: flex; justify-content: space-between; margin-top: 22px; gap: 12px; }
button.btn {
  font: inherit;
  padding: 10px 18px;
  border: 1px solid var(--fg);
  background: #fff;
  color: var(--fg);
  border-radius: 4px;
  cursor: pointer;
}
button.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
button.btn[disabled] { opacity: .4; cursor: not-allowed; }

.summary {
  position: sticky;
  top: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 18px;
}
.summary h2 { margin-top: 0; }
.sum-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--line);
  font-size: .9rem;
}
.sum-row:last-of-type { border-bottom: 0; }
.sum-row .cat { color: var(--muted); font-size: .75rem; text-transform: uppercase; }
.sum-row .name { font-weight: 500; }
.sum-row .price { font-variant-numeric: tabular-nums; }
.total-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 2px solid var(--fg);
  font-size: 1.1rem;
}

.alerts {
  background: var(--warn-bg);
  color: var(--warn-fg);
  border: 1px solid #f0c89a;
  border-radius: 4px;
  padding: 10px 14px;
  margin-bottom: 14px;
  font-size: .9rem;
}
.alerts ul { margin: 4px 0 0 16px; padding: 0; }

form.contact label { display: block; font-size: .85rem; color: var(--muted); margin-top: 12px; }
form.contact input, form.contact textarea {
  font: inherit;
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
}
form.contact textarea { min-height: 80px; }

.review-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
}
.review-table th, .review-table td {
  text-align: left;
  padding: 6px 8px;
  border-bottom: 1px solid var(--line);
  font-size: .9rem;
}
.review-table th { color: var(--muted); font-weight: 500; text-transform: uppercase; font-size: .75rem; }
.review-table td.price { text-align: right; font-variant-numeric: tabular-nums; }

.confirm {
  text-align: center;
  padding: 24px 8px;
}
.confirm .ref { font-size: 1.6rem; font-weight: 700; color: var(--accent); margin: 12px 0; font-variant-numeric: tabular-nums; }

footer.wrap { margin: 40px auto; }

/* ========== Next-level additions ========== */

.hidden { display: none !important; }

/* topbar */
.topbar-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0; gap: 24px;
}
.brand-link { color: #f6f4ef; text-decoration: none; }
.brand-link:hover { color: #fff; }
.topnav {
  display: flex; align-items: center; gap: 18px;
  font-size: .9rem;
}
.topnav a {
  color: #f6f4ef; text-decoration: none; padding: 4px 8px; border-radius: 4px;
}
.topnav a:hover { background: rgba(255,255,255,0.08); }
.btn-link {
  background: none; border: 0; color: #d8d3c5; cursor: pointer;
  font: inherit; padding: 4px 8px; text-decoration: underline;
}
.btn-link:hover { color: #fff; }

/* hero */
.hero {
  padding: 60px 0 40px;
  background: linear-gradient(180deg, #f6f4ef 0%, #ede8da 100%);
}
.hero h1 {
  font-size: 2.6rem; line-height: 1.1; margin: 0 0 16px;
  max-width: 22ch; letter-spacing: -0.01em;
}
.hero h1 em { color: var(--accent); font-style: normal; }
.hero .lede { font-size: 1.15rem; max-width: 56ch; color: #45433d; margin: 0 0 28px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-fineprint { margin-top: 16px; font-size: .9rem; color: var(--muted); }
.hero-fineprint a { color: var(--accent); }

.btn.big { padding: 14px 24px; font-size: 1.05rem; }
.btn.ghost {
  background: transparent; border: 1px solid var(--fg); color: var(--fg);
}
.btn.ghost:hover { background: rgba(0,0,0,0.04); }

/* value props row */
.props {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  padding: 60px 24px;
}
.props .prop {
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  padding: 22px; min-height: 160px;
}
.props .prop.wide { grid-column: 1 / -1; }
.props h3 { margin: 0 0 8px; font-size: 1.05rem; }
.props p { margin: 0; color: #45433d; font-size: .95rem; }
@media (max-width: 800px) {
  .hero h1 { font-size: 1.9rem; }
  .props { grid-template-columns: 1fr; padding: 32px 24px; }
}

/* band section */
.band { background: var(--fg); color: #f6f4ef; padding: 60px 0; }
.band-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 36px; align-items: center; }
.band h2 { font-size: 1.8rem; margin: 0 0 16px; }
.band p { margin: 0 0 14px; color: #d8d3c5; font-size: 1rem; max-width: 56ch; }
.band-text .btn { margin-top: 12px; }
.band-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  padding: 24px;
}
.band-card .steps { padding-left: 22px; margin: 0; }
.band-card .steps li { margin-bottom: 12px; color: #ede8da; }
.band-card .steps strong { color: #fff; }
@media (max-width: 800px) { .band-grid { grid-template-columns: 1fr; } }

/* login */
.login-wrap { padding: 60px 0; display: flex; justify-content: center; }
.login-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  padding: 32px; max-width: 480px;
}
.login-card h1 { margin: 0 0 12px; font-size: 1.5rem; }
.sign-in-btn { display: inline-block; margin-top: 16px; }

/* page-head used on /builds and /builds/:id */
.page-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 28px 0 16px;
}
.page-head h1 { margin: 0; font-size: 1.6rem; }
.head-actions { display: flex; gap: 8px; align-items: center; }

/* build cards */
.build-card {
  display: block;
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  padding: 18px 20px; margin-bottom: 12px;
  text-decoration: none; color: inherit;
  transition: border-color .12s;
}
.build-card:hover { border-color: var(--accent); }
.build-card-head { display: flex; justify-content: space-between; align-items: center; }
.build-card-head h3 { margin: 0; font-size: 1.1rem; }
.build-card-body { display: flex; justify-content: space-between; align-items: baseline; margin-top: 8px; }
.build-card-body strong { font-size: 1.1rem; font-variant-numeric: tabular-nums; }

.status-pill {
  font-size: .75rem; text-transform: uppercase; letter-spacing: .04em;
  padding: 3px 10px; border-radius: 999px;
  background: #ede8da; color: var(--fg);
}
.status-pill.status-draft    { background: #ede8da; color: #45433d; }
.status-pill.status-inquiry  { background: #fff3e6; color: var(--warn-fg); }
.status-pill.status-quoted   { background: #e1ecdc; color: #3d5934; }
.status-pill.status-won      { background: #d5ead0; color: #2d4827; }
.status-pill.status-lost     { background: #f1d4d4; color: #7a2929; }

.empty-state {
  text-align: center; padding: 60px 20px;
  background: var(--card); border: 1px dashed var(--line); border-radius: 8px;
}

/* build detail layout */
.build-detail-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 24px; align-items: start; }
@media (max-width: 900px) { .build-detail-grid { grid-template-columns: 1fr; } }
#build-summary, #build-thread {
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  padding: 22px;
}
#build-summary h2, #build-thread h2 { margin-top: 0; }

/* conversation thread */
#messages-list {
  max-height: 380px; overflow-y: auto;
  padding: 6px; border: 1px solid var(--line); border-radius: 4px; background: #fafaf6;
  margin-bottom: 14px;
}
.chat-msg { padding: 10px 12px; border-radius: 6px; margin-bottom: 8px; background: var(--card); border: 1px solid var(--line); }
.chat-msg.chat-customer { background: #fff3e6; }
.chat-msg.chat-shop     { background: #e1ecdc; }
.chat-msg.chat-system   { background: #ede8da; color: var(--muted); font-style: italic; }
.chat-meta { font-size: .8rem; color: var(--muted); margin-bottom: 4px; }
.chat-body { font-size: .95rem; white-space: pre-wrap; }
.message-form textarea {
  width: 100%; min-height: 80px; padding: 10px;
  border: 1px solid var(--line); border-radius: 4px;
  font: inherit;
}
.message-form button { margin-top: 8px; }

/* vehicle right-rail panel (Phase B) */
.vehicle-panel {
  padding: 10px 12px; margin-bottom: 12px;
  border-radius: 6px; border: 1px solid var(--line);
  background: #fafaf6; font-size: .85rem;
}
.vehicle-panel.vehicle-ok    { border-color: #b8d3ad; background: #f0f7ec; }
.vehicle-panel.vehicle-warn  { border-color: #f0c89a; background: var(--warn-bg); color: var(--warn-fg); }
.vehicle-panel .vehicle-line { margin: 4px 0; }
.vehicle-panel .vehicle-head { font-weight: 600; }
.vehicle-pill {
  display: inline-block; margin-right: 6px;
  padding: 2px 8px; border-radius: 999px;
  font-size: .75rem; background: #ede8da; color: var(--fg);
}
.vehicle-pill.ok   { background: #d5ead0; color: #2d4827; }
.vehicle-pill.warn { background: #f1d4d4; color: #7a2929; }

/* save-build row in wizard summary */
#save-build-row { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
#save-build-row .btn { width: 100%; }

/* misc */
.alerts {
  background: var(--warn-bg); border: 1px solid #f0c89a; color: var(--warn-fg);
  padding: 12px 14px; border-radius: 6px; margin: 12px 0;
}

/* vehicle step */
.vehicle-pick .vehicle-opt { display: block; padding: 14px; margin-bottom: 10px; }
.vehicle-pick select { display: block; margin-top: 8px; width: 100%; padding: 6px; border: 1px solid var(--line); border-radius: 4px; background: #fff; font: inherit; }
.custom-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
.custom-fields label { display: block; font-size: .85rem; color: var(--muted); }
.custom-fields input, .custom-fields select { width: 100%; padding: 6px 8px; border: 1px solid var(--line); border-radius: 4px; background: #fff; font: inherit; }
@media (max-width: 700px) { .custom-fields { grid-template-columns: 1fr; } }