/* ============================================================
   SPEC BUILDER — page layout & components
   Uses tokens from assets/tokens.css
   ============================================================ */

/* ── Page chrome ─────────────────────────────────────────── */
html, body { background: var(--bg-primary); }
body {
  font-family: var(--font-body);
  color: var(--fg-primary);
  -webkit-font-smoothing: antialiased;
  line-height: var(--leading-normal);
}
input, select, textarea, button { font-family: inherit; }
a { color: inherit; text-decoration: none; }

.page { max-width: 1440px; margin: 0 auto; position: relative; background: var(--bg-primary); }

/* Masthead (matches index.html) */
.masthead {
  padding: 22px 60px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex; justify-content: space-between; align-items: center;
}
.masthead-title {
  font-family: var(--font-display); font-size: 28px; letter-spacing: .14em;
}
.masthead-star { color: var(--accent-gold); }
.masthead-dot  { color: var(--accent-primary); }
.masthead-issue {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--color-gray-200); letter-spacing: .2em;
}
.masthead a.back {
  font-family: var(--font-condensed); font-size: 11px;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--color-gray-200);
}
.masthead a.back:hover { color: var(--accent-gold); }

/* ── Hero band — page intro ─────────────────────────────── */
.spec-hero {
  padding: 60px 60px 40px;
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
  background:
    radial-gradient(ellipse at top right, rgba(204,17,17,.10) 0%, transparent 55%),
    radial-gradient(ellipse at bottom left, rgba(232,184,75,.06) 0%, transparent 55%);
}
.spec-hero .kicker {
  font-family: var(--font-condensed); font-size: 13px;
  font-weight: 700; letter-spacing: .3em; color: var(--accent-gold);
  text-transform: uppercase;
}
.spec-hero h1 {
  font-family: var(--font-display);
  font-size: 96px; line-height: .92; letter-spacing: .02em;
  color: #fff; text-transform: uppercase; margin: 14px 0 18px;
}
.spec-hero h1 .em { color: var(--accent-primary); }
.spec-hero p {
  font-size: 18px; line-height: 1.55; color: var(--color-gray-100);
  max-width: 700px; margin: 0;
}
.spec-hero .ribbon {
  position: absolute; top: 0; right: 0; bottom: 0; width: 6px;
  background: linear-gradient(180deg, var(--accent-primary) 0%, var(--accent-gold) 100%);
}

/* ── Apparatus type chooser (above dashboard) ────────────── */
.type-picker {
  padding: 36px 60px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--color-dark-950);
}
.type-picker .label {
  display: block; margin-bottom: 16px;
  font-family: var(--font-condensed); font-size: 12px;
  font-weight: 700; letter-spacing: .3em; color: var(--color-gray-200);
  text-transform: uppercase;
}
.type-options { display: flex; gap: 14px; flex-wrap: wrap; }
.type-option {
  flex: 1; min-width: 220px;
  background: var(--bg-secondary); padding: 22px 24px;
  border: 1px solid var(--border-subtle); cursor: pointer;
  transition: var(--transition-base);
  display: flex; flex-direction: column; gap: 4px;
  border-radius: 0;
}
.type-option:hover { border-color: var(--color-dark-500); background: var(--color-dark-600); }
.type-option.is-selected {
  border-color: var(--accent-primary);
  background: linear-gradient(135deg, rgba(204,17,17,.18) 0%, rgba(204,17,17,.04) 100%);
  box-shadow: var(--shadow-inset-accent);
}
.type-option .name {
  font-family: var(--font-display); font-size: 32px; letter-spacing: .03em;
  color: #fff; line-height: 1;
}
.type-option .blurb {
  font-family: var(--font-condensed); font-size: 12px;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--color-gray-200);
}
.type-option.is-selected .blurb { color: var(--accent-gold); }
.type-option input { position: absolute; opacity: 0; pointer-events: none; }

/* ── Dashboard grid ──────────────────────────────────────── */
.dashboard {
  display: grid;
  grid-template-columns: 260px 1fr 340px;
  gap: 40px;
  padding: 50px 60px 80px;
  align-items: start;
}

/* ── Section nav (left rail) ─────────────────────────────── */
.nav {
  position: sticky; top: 20px;
  border-left: 1px solid var(--accent-gold);
  padding-left: 24px;
}
.nav-eyebrow {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--accent-gold); letter-spacing: .22em; margin-bottom: 22px;
}
.nav ol { list-style: none; padding: 0; margin: 0; }
.nav li { margin: 0 0 14px; }
.nav a {
  display: flex; align-items: baseline; gap: 12px;
  padding: 6px 0;
  font-family: var(--font-condensed); font-size: 13px;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--color-gray-200);
  transition: var(--transition-base);
}
.nav a:hover { color: #fff; }
.nav a.is-active { color: #fff; }
.nav a .num {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--color-gray-300); letter-spacing: .12em;
  min-width: 22px;
}
.nav a.is-active .num { color: var(--accent-primary); }
.nav a .dot {
  display: inline-block; width: 8px; height: 8px;
  background: var(--color-dark-500); flex-shrink: 0;
  transform: translateY(-1px);
}
.nav a.is-done .dot { background: var(--accent-gold); }
.nav a.is-active .dot { background: var(--accent-primary); box-shadow: 0 0 8px rgba(204,17,17,.7); }

/* ── Form sections (center column) ───────────────────────── */
.sections { display: flex; flex-direction: column; gap: 56px; min-width: 0; }

.section {
  background: transparent;
  scroll-margin-top: 20px;
}
.section-header {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px; padding-bottom: 14px; margin-bottom: 28px;
  border-bottom: 1px solid var(--border-subtle);
}
.section-header h2 {
  font-family: var(--font-display);
  font-size: 48px; line-height: .95; letter-spacing: .02em;
  color: #fff; text-transform: uppercase; margin: 0;
}
.section-header .meta {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--color-gray-300); letter-spacing: .22em;
  white-space: nowrap;
}

.section-help {
  font-family: var(--font-body); font-size: 14px; line-height: 1.55;
  color: var(--color-gray-100); margin: -14px 0 28px;
  max-width: 640px;
}

.fields {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 22px;
}
.field { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.field.full { grid-column: 1 / -1; }
.field-label {
  font-family: var(--font-condensed); font-size: 11px;
  font-weight: 700; letter-spacing: .22em; color: var(--color-gray-200);
  text-transform: uppercase;
}
.field-help {
  font-family: var(--font-body); font-size: 12px; color: var(--color-gray-300);
  margin-top: -2px;
}
.field-hint {
  font-family: var(--font-mono); font-size: 10px; color: var(--color-gray-300);
  letter-spacing: .14em; text-transform: uppercase;
}
.field input, .field select, .field textarea {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: #fff; padding: 13px 14px; font-size: 15px;
  font-family: var(--font-body); outline: none; width: 100%;
  border-radius: 0;
  transition: var(--transition-base);
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-inset-accent);
}
.field textarea { resize: vertical; min-height: 80px; }
.field select {
  appearance: none; -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--accent-gold) 50%),
                    linear-gradient(135deg, var(--accent-gold) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
  padding-right: 36px;
}

/* Pill / chip choice group (single or multi select) */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 14px; cursor: pointer;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: var(--color-gray-100);
  font-family: var(--font-condensed); font-size: 12px;
  font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
  transition: var(--transition-base);
  user-select: none;
}
.chip:hover { color: #fff; border-color: var(--color-dark-500); }
.chip.is-selected {
  background: var(--accent-primary); color: #fff;
  border-color: var(--accent-primary);
}
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip-row .field-label { display: block; margin-bottom: 10px; }

/* Toggle (yes/no) */
.toggle {
  display: inline-flex; background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
}
.toggle label {
  padding: 10px 18px; cursor: pointer;
  font-family: var(--font-condensed); font-size: 12px;
  font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: var(--color-gray-100);
  transition: var(--transition-base);
}
.toggle label.is-selected {
  background: var(--accent-primary); color: #fff;
}
.toggle input { position: absolute; opacity: 0; pointer-events: none; }

/* Reveal subfields when toggled "yes" */
.reveal { display: none; padding-top: 12px; }
.reveal.is-open { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 22px; }
.reveal.is-open.full { grid-template-columns: 1fr; }

/* ── Selections summary (right rail) ─────────────────────── */
.buildsheet {
  position: sticky; top: 20px;
  background: var(--bg-secondary);
  border-top: 4px solid var(--accent-gold);
  border-left: 1px solid var(--border-subtle);
  border-right: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  max-height: calc(100vh - 40px);
  display: flex; flex-direction: column;
}
.buildsheet-head {
  padding: 22px 24px 14px;
  border-bottom: 1px solid var(--border-subtle);
}
.buildsheet-eyebrow {
  font-family: var(--font-condensed); font-size: 11px;
  font-weight: 700; letter-spacing: .3em; color: var(--accent-gold);
  text-transform: uppercase;
}
.buildsheet-title {
  font-family: var(--font-display); font-size: 32px; letter-spacing: .02em;
  color: #fff; line-height: 1; margin-top: 8px;
}
.buildsheet-meta {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--color-gray-300); letter-spacing: .14em; margin-top: 8px;
}
.buildsheet-body {
  flex: 1; overflow-y: auto;
  padding: 14px 24px 14px;
}
.buildsheet-empty {
  font-family: var(--font-condensed); font-size: 12px;
  letter-spacing: .14em; color: var(--color-gray-300);
  padding: 24px 0; text-align: center;
}
.bs-section {
  border-bottom: 1px dashed rgba(255,255,255,.12);
  padding: 12px 0;
}
.bs-section:last-child { border-bottom: none; }
.bs-section-name {
  font-family: var(--font-condensed); font-size: 10px;
  font-weight: 700; letter-spacing: .22em; color: var(--accent-gold);
  text-transform: uppercase; margin-bottom: 6px;
}
.bs-row {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 3px 0;
  font-size: 13px; line-height: 1.4;
}
.bs-row .k {
  color: var(--color-gray-200);
  font-family: var(--font-condensed); font-size: 11px;
  letter-spacing: .1em; text-transform: uppercase;
  flex-shrink: 0; max-width: 45%;
}
.bs-row .v {
  color: #fff; text-align: right;
  font-family: var(--font-body); font-size: 13px;
  word-break: break-word;
}
.buildsheet-foot {
  padding: 20px 24px 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex; flex-direction: column; gap: 10px;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 18px;
  font-family: var(--font-condensed); font-size: 13px;
  font-weight: 700; letter-spacing: .22em; text-transform: uppercase;
  cursor: pointer; border: none; text-decoration: none;
  transition: var(--transition-base);
  border-radius: 0;
}
.btn-primary {
  background: var(--accent-primary); color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled {
  background: var(--color-dark-600); color: var(--color-gray-300);
  cursor: not-allowed;
}
.btn-secondary {
  background: transparent; color: var(--color-gray-100);
  border: 1px solid var(--border-subtle);
}
.btn-secondary:hover { color: #fff; border-color: var(--accent-gold); }

/* Progress bar inside summary rail */
.progress {
  height: 4px; background: var(--color-dark-600); margin-top: 12px;
  position: relative; overflow: hidden;
}
.progress > i {
  position: absolute; top: 0; left: 0; bottom: 0;
  background: linear-gradient(90deg, var(--accent-primary) 0%, var(--accent-gold) 100%);
  width: 0;
  transition: width .3s ease;
}

/* ── Sent / confirmation state ───────────────────────────── */
.sent-screen { display: none; padding: 90px 60px; }
body.sent .dashboard { display: none; }
body.sent .type-picker { display: none; }
body.sent .sent-screen { display: block; }
.sent-screen .panel {
  max-width: 920px; margin: 0 auto;
  background: linear-gradient(135deg, var(--color-red-900) 0%, var(--accent-press) 100%);
  padding: 60px;
  border-top: 4px solid var(--accent-gold);
}
.sent-screen .copy {
  font-family: var(--font-condensed); font-size: 12px;
  font-weight: 700; letter-spacing: .3em; color: var(--accent-gold);
  text-transform: uppercase; margin-bottom: 14px;
}
.sent-screen h2 {
  font-family: var(--font-display); font-size: 88px; line-height: 1;
  color: #fff; letter-spacing: .02em; margin: 0; text-transform: uppercase;
}
.sent-screen p {
  font-size: 17px; line-height: 1.65; color: rgba(255,255,255,.9);
  margin: 22px 0 28px; max-width: 560px;
}
.sent-screen .actions { display: flex; gap: 12px; flex-wrap: wrap; }
.sent-screen .btn-secondary {
  color: #fff; border-color: rgba(255,255,255,.4);
}
.sent-screen .btn-secondary:hover { border-color: var(--accent-gold); }

/* ── Footer (match index.html) ───────────────────────────── */
.footer {
  padding: 50px 60px;
  border-top: 2px solid var(--accent-primary);
  background: var(--color-dark-950);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 24px;
}
.footer-title {
  font-family: var(--font-display); font-size: 28px;
  letter-spacing: .08em; color: #fff;
}
.footer-sub {
  font-family: var(--font-condensed); font-size: 12px;
  font-weight: 600; letter-spacing: .18em; color: var(--color-gray-300);
  text-transform: uppercase; margin-top: 4px;
}
.footer-contact {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--color-gray-200); letter-spacing: .12em;
  text-align: right;
}
.footer-contact a { color: var(--accent-gold); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1280px) {
  .dashboard { grid-template-columns: 220px 1fr 300px; gap: 28px; padding: 36px 36px 60px; }
  .spec-hero { padding: 50px 36px 32px; }
  .spec-hero h1 { font-size: 72px; }
  .masthead, .type-picker, .footer, .sent-screen { padding-left: 36px; padding-right: 36px; }
}

@media (max-width: 1024px) {
  .dashboard { grid-template-columns: 1fr; }
  .nav { position: static; border-left: none; border-top: 1px solid var(--accent-gold);
         padding-left: 0; padding-top: 16px; }
  .nav ol { display: flex; flex-wrap: wrap; gap: 4px 16px; }
  .nav li { margin: 0; }
  .buildsheet { position: static; max-height: none; }
  .buildsheet-body { max-height: 360px; }
}

@media (max-width: 700px) {
  .spec-hero h1 { font-size: 48px; }
  .section-header h2 { font-size: 32px; }
  .sent-screen h2 { font-size: 48px; }
  .fields, .reveal.is-open { grid-template-columns: 1fr; }
  .dashboard { padding: 24px 20px 48px; }
  .masthead, .type-picker, .spec-hero, .footer, .sent-screen { padding-left: 20px; padding-right: 20px; }
  .type-options { flex-direction: column; }
  .type-option { min-width: 0; }
}

/* Subtle scrollbar in summary rail */
.buildsheet-body::-webkit-scrollbar { width: 8px; }
.buildsheet-body::-webkit-scrollbar-track { background: transparent; }
.buildsheet-body::-webkit-scrollbar-thumb { background: var(--color-dark-500); }