:root {
  --bsg-black:        #0f0f0d;
  --bsg-ivory:        #f8f5ef;
  --bsg-ivory-deep:   #ede9e0;
  --bsg-teck:         #c4956a;
/*  --bsg-teck-light:   #f5ede0; */
  --bsg-teck-light:   #f4efe6;
  --bsg-teck-dark:    #8b5e3c;
  --bsg-green:        #2a6b4a;
  --bsg-green-light:  #eaf3ee;
  --bsg-amber:        #a07020;
  --bsg-amber-light:  #faf3e0;
  --bsg-red:          #8b2c2c;
  --bsg-red-light:    #fdf0f0;
  --bsg-border:       #e2ddd4;
  --bsg-radius:       4px;
  --bsg-radius-lg:    12px;
  --bsg-shadow:       0 2px 20px rgba(15,15,13,.07);
  --bsg-font-display: 'League Gothic', Impact, sans-serif;
  --bsg-font-body:    'Figtree', system-ui, sans-serif;
}

.bsg-wrapper {
  max-width: 760px;
  font-family: var(--bsg-font-body);
  color: var(--bsg-black);
}

/* ── Header ───────────────────────────────────────────── */
.bsg-header { margin-bottom: 40px; }

.bsg-header__eyebrow {
  /*font-size: .75rem; */
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--bsg-teck);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.bsg-header__eyebrow::after {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--bsg-teck);
  opacity: .5;
}

.bsg-header__title {
  font-family: var(--bsg-font-display);
  font-size: 50px;
  font-weight: 600;
  line-height: 1.1;
  margin: 0 0 16px;
  letter-spacing: .01em;
}

.bsg-header__sub {
  /* font-size: 1rem; */
  color: #6b6558;
  display:none;
  line-height: 1.7;
  max-width: 520px;
  margin: 0;
  /* font-weight: 300; */
}

/* ── Steps ────────────────────────────────────────────── */
.bsg-steps {
  display: flex;
  margin-bottom: 28px;
  border: 1px solid var(--bsg-border);
  border-radius: var(--bsg-radius-lg);
  overflow: hidden;
  background: #fff;
}
.bsg-step {
  flex: 1;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-right: 1px solid var(--bsg-border);
  /* font-size: .88rem; */
  color: #9e9890;
}
.bsg-step:last-child { border-right: none; }
.bsg-step__num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1.5px solid var(--bsg-border);
  display: flex;
  align-items: center;
  justify-content: center;
  /* font-size: .75rem; */
  font-weight: 600;
  flex-shrink: 0;
}
.bsg-step.active .bsg-step__num {
  background: var(--bsg-black);
  border-color: var(--bsg-black);
  color: #fff;
}
.bsg-step.active { color: var(--bsg-black); font-weight: 500; }

/* ── Panel ────────────────────────────────────────────── */
.bsg-panel {
  background: #fff;
  border: 1px solid var(--bsg-border);
  border-radius: var(--bsg-radius-lg);
  overflow: hidden;
  box-shadow: var(--bsg-shadow);
}
.bsg-panel__inner { padding: 32px 36px 36px; }

/* ── Section label ────────────────────────────────────── */
.bsg-section-label {
  /* font-size: .72rem; */
  letter-spacing: .22em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--bsg-teck);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Form layout ──────────────────────────────────────── */
.bsg-form { display: block; }

/* ── Dims grid ────────────────────────────────────────── */
.bsg-dim-grid {
  display: grid !important;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 20px;
  margin-bottom: 32px;
}
.bsg-field {
  display: flex !important;
  flex-direction: column !important;
  gap: 10px;
  width: auto !important;
  float: none !important;
}
.bsg-field label {
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #6b6558;
  font-family: var(--bsg-font-body) !important;
  display: block !important;
  margin-bottom: 0 !important;
  padding: 0 !important;
}
.bsg-input-wrap {
  position: relative;
  display: block !important;
  width: 100% !important;
}
.bsg-input-wrap input[type="number"] {
  width: 100% !important;
  max-width: 100% !important;
  padding: 12px 36px 12px 14px !important;
  border: 1.5px solid var(--bsg-border) !important;
  border-radius: var(--bsg-radius) !important;
  background: var(--bsg-ivory) !important;
  font-family: var(--bsg-font-body) !important;
  color: var(--bsg-black) !important;
  box-sizing: border-box !important;
  box-shadow: none !important;
  outline: none !important;
  -moz-appearance: textfield !important;
  appearance: textfield !important;
  margin: 0 !important;
  display: block !important;
  height: auto !important;
}
.bsg-input-wrap input[type="number"]::-webkit-outer-spin-button,
.bsg-input-wrap input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none !important; }
.bsg-input-wrap input[type="number"]:focus {
  border-color: var(--bsg-teck) !important;
  background: #fff !important;
  box-shadow: 0 0 0 3px rgba(196,149,106,.12) !important;
}
.bsg-input-unit {
  position: absolute !important;
  right: 12px !important;
  top: 50% !important;
  transform: translateY(-50%) !important;
  color: #b0a898;
  pointer-events: none;
  font-family: var(--bsg-font-body) !important;
  line-height: 1 !important;
}

/* ── Divider ──────────────────────────────────────────── */
.bsg-divider {
  height: 1px;
  background: var(--bsg-border);
  margin: 0 0 28px;
}

/* ── Mount ────────────────────────────────────────────── */
.bsg-mount-grid {
  display: grid !important;
  grid-template-columns: 1fr 1fr !important;
  gap: 14px;
  margin-bottom: 32px;
}
.bsg-mount-option {
  position: relative;
  display: block !important;
  float: none !important;
  width: auto !important;
}
.bsg-mount-option input[type="radio"] {
  position: absolute !important;
  opacity: 0 !important;
  width: 0 !important;
  height: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
}
.bsg-mount-option label {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  /* justify-content: center !important; */
  gap: 10px !important;
  padding: 22px 18px !important;
  border: 1.5px solid var(--bsg-border) !important;
  border-radius: var(--bsg-radius) !important;
  cursor: pointer !important;
  background: var(--bsg-ivory) !important;
  text-align: left !important;
  font-family: var(--bsg-font-body) !important;
  margin: 0 !important;
  transition: border-color .2s, background .2s;
  width: 100% !important;
  box-sizing: border-box !important;
}
.bsg-mount-option input[type="radio"]:checked + label {
  border-color: var(--bsg-black) !important;
  background: #fff !important;
}
.bsg-mount-option label:hover {
  border-color: var(--bsg-teck) !important;
  background: #fff !important;
}
.bsg-mount-icon {
  width: 40px !important;
  height: 40px !important;
  min-width: 40px;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  background: var(--bsg-ivory-deep) !important;
  border-radius: 10px !important;
  transition: background .2s;
}
.bsg-mount-option input[type="radio"]:checked + label .bsg-mount-icon {
  background: var(--bsg-teck-light) !important;
}
.bsg-mount-text strong {
  display: block !important;
  font-weight: 600 !important;
  letter-spacing: .06em !important;
  text-transform: uppercase !important;
  font-family: var(--bsg-font-body) !important;
  margin: 0 !important;
  padding: 0 !important;
}
.bsg-mount-text span {
  color: #8a8278 !important;
  font-weight: 300 !important;
  font-family: var(--bsg-font-body) !important;
  display: block !important;
  margin-top: 3px !important;
}

/* ── Hint ─────────────────────────────────────────────── */
.bsg-hint[hidden] { display: none !important; }
.bsg-hint {
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--bsg-teck-light);
  border-radius: var(--bsg-radius);
  padding: 16px 18px;
  margin-bottom: 28px;
  color: var(--bsg-teck-dark);
  line-height: 1.6;
}
.bsg-hint__text {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.bsg-hint__diagrams { margin-top: 14px; }
.bsg-hint__row {
  display: flex !important;
  gap: 0;
  justify-content: center;
  margin: 0 auto;
  max-width: 80%;
}
.bsg-hint__row svg {
  width: 50% !important;
  height: auto !important;
  display: block !important;
}

/* ── Submit ───────────────────────────────────────────── */
.bsg-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 20px 32px;
  background: var(--bsg-black);
  color: #fff;
  border: none;
  border-radius: var(--bsg-radius);
  font-family: var(--bsg-font-body);
  /* font-size: .85rem; */
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background .2s, transform .2s, box-shadow .2s;
  box-shadow: 0 4px 16px rgba(15,15,13,.18);
}
.bsg-submit:hover {
  background: #2a2a26;
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(15,15,13,.22);
}

/* ── Result ───────────────────────────────────────────── */
.bsg-result { margin-top: 28px; }

/* ── Cards ────────────────────────────────────────────── */
.bsg-card {
  background: #fff;
  border: 1px solid var(--bsg-border);
  border-radius: var(--bsg-radius-lg);
  overflow: hidden;
  box-shadow: var(--bsg-shadow);
  animation: bsg-in .35s ease forwards;
}
@keyframes bsg-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.bsg-card::before { content: ''; display: block; height: 3px; }
.bsg-success::before { background: var(--bsg-green); }
.bsg-warning::before { background: linear-gradient(90deg, var(--bsg-amber), #d4a840); }
.bsg-fail::before    { background: var(--bsg-red); }

.bsg-card__body {
  padding: 28px 32px 32px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.bsg-card__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.bsg-success .bsg-card__icon { background: var(--bsg-green-light); }
.bsg-warning .bsg-card__icon { background: var(--bsg-amber-light); }
.bsg-fail    .bsg-card__icon { background: var(--bsg-red-light); }

.bsg-card__eyebrow {
  /* font-size: .72rem; */
  letter-spacing: .22em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 8px;
}
.bsg-success .bsg-card__eyebrow { color: var(--bsg-green); }
.bsg-warning .bsg-card__eyebrow { color: var(--bsg-amber); }
.bsg-fail    .bsg-card__eyebrow { color: var(--bsg-red); }

.bsg-card__title {
  /* font-size: 1.9rem; */
  font-weight: 600;
  margin: 0 0 12px;
  line-height: 1.2;
}
.bsg-card__text {
  /* font-size: .95rem; */
  color: #5a5650;
  line-height: 1.7;
  margin: 0 0 18px;
  font-weight: 300;
}
.bsg-card__text strong { font-weight: 600; color: var(--bsg-black); }

.bsg-dims {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bsg-ivory-deep);
  border-radius: 4px;
  padding: 9px 16px;
  /* font-size: .88rem; */
  font-weight: 500;
  margin-bottom: 22px;
  margin-right: 10px;
  letter-spacing: .03em;
}

.bsg-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--bsg-radius);
  font-family: var(--bsg-font-body);
  /* font-size: .82rem; */
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  text-decoration: none;
  transition: all .2s;
  cursor: pointer;
  border: none;
}
.bsg-cta--primary {
  background: var(--bsg-black);
  color: #fff;
  box-shadow: 0 3px 12px rgba(15,15,13,.16);
}
.bsg-cta--primary:hover { background: #2a2a26; transform: translateY(-1px); }
.bsg-cta--ghost {
  background: transparent;
  color: var(--bsg-black);
  border: 1.5px solid var(--bsg-black);
}
.bsg-cta--ghost:hover { background: var(--bsg-black); color: #fff; }
.bsg-cta--contact {
  background: transparent;
  color: var(--bsg-red);
  border: 1.5px solid var(--bsg-red);
}
.bsg-cta--contact:hover { background: var(--bsg-red); color: #fff; }

/* ── Reference table ──────────────────────────────────── */
.bsg-ref {
  margin-top: 52px;
  padding-top: 44px;
  border-top: 1px solid var(--bsg-border);
}
.bsg-ref__title {
  /* font-size: .72rem; */
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--bsg-teck);
  font-weight: 600;
  margin-bottom: 22px;
}
.bsg-ref-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.bsg-ref-card {
  border: 1px solid var(--bsg-border);
  border-radius: var(--bsg-radius);
  padding: 22px;
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.bsg-ref-card:hover {
  border-color: var(--bsg-teck);
  box-shadow: 0 4px 16px rgba(196,149,106,.12);
}
.bsg-ref-card__key {
  font-family: var(--bsg-font-display);
  font-size: 2.8rem;
  /* font-weight: 700; */
  line-height: 1;
  margin-bottom: 12px;
}
.bsg-ref-card__dims {
  /* font-size: .85rem; */
  color: #7a7470;
  line-height: 1.7;
  font-weight: 300;
}
.bsg-ref-card__dims strong { font-weight: 500; color: var(--bsg-black); }
.bsg-ref-card__link {
  display: inline-block;
  margin-top: 14px;
  /* font-size: .78rem; */
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--bsg-teck-dark);
  text-decoration: none;
}
.bsg-ref-card__link:hover { color: var(--bsg-black); }

/* ── Contact note ─────────────────────────────────────── */
.bsg-contact-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 16px;
  padding: 14px 18px;
  background: var(--bsg-ivory);
  border: 1px solid var(--bsg-border);
  border-radius: var(--bsg-radius);
  color: #6b6558;
  line-height: 1.6;
}
.bsg-contact-note__link {
  color: var(--bsg-teck-dark);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.bsg-contact-note__link:hover { color: var(--bsg-black); }




/* ── Label responsive ────────────────────────────────── */
.bsg-label-short { display: none; }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 640px) {
  .bsg-hint__row { flex-direction: column !important; max-width: 240px; }
  .bsg-label-full { display: none; }
  .bsg-label-short { display: inline; }
  .bsg-hint__row svg { width: 100% !important; }
  .bsg-panel__inner { padding: 22px 18px 28px; }
  .bsg-dim-grid { grid-template-columns: 1fr 1fr; }
  .bsg-mount-grid { grid-template-columns: 1fr !important; }
  .bsg-card__body { flex-direction: column; gap: 14px; padding: 20px 18px 24px; }
  .bsg-ref-grid { grid-template-columns: 1fr; }
  .bsg-header__title { font-size: 2.2rem; }
  .bsg-wrapper { padding-top: 20px; }
  .bsg-ref { padding-bottom: 20px; }
  .bsg-steps { display: none; }
}