/* =============================================
   BOOT ID BY STRAPZYS — DIY Transfer Product Page
   ============================================= */

/* ── HERO ── */
.bi-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  min-height: 640px;
  border-bottom: 1px solid var(--grey-200);
  overflow: hidden;
  padding-top: 88px;
}

.bi-hero-content {
  padding: 60px 48px 60px 80px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.bi-hero-title {
  font-family: var(--font-display);
  font-size: clamp(72px, 9vw, 140px);
  line-height: 0.86;
  color: var(--white);
  margin: 0;
  overflow-wrap: break-word;
}

.bi-hero-sub {
  font-size: 15px;
  font-weight: 300;
  color: var(--grey-400);
  line-height: 1.8;
  max-width: 440px;
}

.bi-hero-price {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}

.bi-price-main {
  font-family: var(--font-display);
  font-size: 54px;
  color: var(--accent);
  line-height: 1;
}

.bi-price-note {
  font-size: 14px;
  color: var(--grey-500);
  font-weight: 300;
}

.bi-hero-visual {
  padding: 24px 40px 24px 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: stretch;
  justify-content: center;
  position: relative;
}

.bi-hero-mosaic {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  border-radius: 8px;
  overflow: hidden;
}

.bi-mc-img {
  aspect-ratio: 1/1;
  overflow: hidden;
  background: var(--grey-100);
}

.bi-mc-img--wide {
  grid-column: 1 / -1;
  aspect-ratio: 16/9;
}

.bi-mc-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  display: block;
  transition: transform 0.5s ease;
}

.bi-mc-img:hover img {
  transform: scale(1.04);
}

.bi-hero-mock-tag {
  align-self: flex-start;
  background: var(--accent);
  color: var(--black);
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.1em;
  padding: 5px 12px;
  border-radius: 3px;
}

.bi-hero-mock-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--accent);
  color: var(--black);
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.1em;
  padding: 4px 10px;
  border-radius: 3px;
}

/* ── PRODUCT SELECTOR ── */
.bi-product {
  padding: 80px 0;
  border-bottom: 1px solid var(--grey-200);
}

.bi-product-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 64px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.bi-product-visual {
  position: sticky;
  top: 100px;
}

.bi-preview-card {
  background: var(--grey-100);
  border: 1.5px solid var(--grey-200);
  border-radius: 10px;
  padding: 48px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.bi-preview-stage {
  width: 100%;
  aspect-ratio: 4/3;
  background: #2c2c2c;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  transition: background 0.3s ease;
}

/* Stage surface tone shifts with the chosen ink so the no-background
   text stays legible — black ink reads on light boots, white ink on dark. */
.bi-preview-stage--black-ink { background: #dcdad2; }
.bi-preview-stage--white-ink { background: #141414; }

.bi-preview-transfer {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 44px);
  letter-spacing: 0.04em;
  padding: 10px 16px;
  transition: color 0.2s;
  max-width: 88%;
  text-align: center;
  word-break: break-word;
}

.bi-preview-transfer--black { color: #0c0c0c; text-shadow: 0 1px 2px rgba(255,255,255,0.15); }
.bi-preview-transfer--white { color: #f5f5f5; text-shadow: 0 1px 3px rgba(0,0,0,0.5); }

.bi-preview-bg-note {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(0,0,0,0.4);
  white-space: nowrap;
}

.bi-preview-stage--white-ink .bi-preview-bg-note { color: rgba(255,255,255,0.35); }

.bi-preview-note {
  font-size: 12px;
  color: var(--grey-500);
  text-align: center;
  line-height: 1.7;
}

.bi-preview-real {
  margin-top: 16px;
  border-radius: 10px;
  overflow: hidden;
  border: 1.5px solid var(--grey-200);
  background: var(--grey-100);
}

.bi-preview-real img {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  display: block;
}

.bi-preview-real-caption {
  margin: 0;
  padding: 12px 16px;
  font-size: 12px;
  color: var(--grey-500);
  font-weight: 300;
  text-align: center;
}

/* Form panel */
.bi-product-form {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding-top: 8px;
}

.bi-product-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 54px);
  line-height: 0.92;
  color: var(--white);
  margin: 0;
}

.bi-cat-price-hint {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  color: var(--accent);
  font-weight: 500;
}

/* ── IMAGE UPLOAD ── */
.bi-drop-zone {
  border: 1.5px dashed var(--grey-300);
  border-radius: 6px;
  background: var(--grey-100);
  cursor: pointer;
  transition: border-color 0.25s, background 0.25s;
  overflow: hidden;
  display: block;
}

.bi-drop-zone:hover,
.bi-drop-zone.dragover {
  border-color: var(--accent);
  background: rgba(212, 255, 26, 0.05);
}

.bi-drop-zone input[type="file"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.bi-drop-zone .dz-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  gap: 8px;
  text-align: center;
}

.bi-drop-zone .dz-icon {
  font-size: 28px;
  color: var(--grey-400);
  line-height: 1;
  transition: color 0.2s;
}

.bi-drop-zone:hover .dz-icon { color: var(--accent); }

.bi-drop-zone .dz-primary {
  font-size: 15px;
  font-weight: 500;
  color: var(--white);
  margin: 0;
}

.bi-drop-zone .dz-secondary {
  font-size: 13px;
  color: var(--grey-500);
  margin: 0;
}

.bi-drop-zone .dz-browse {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.bi-drop-zone .dz-types {
  font-size: 11px;
  color: var(--grey-400);
  margin: 4px 0 0;
  letter-spacing: 0.06em;
}

.bi-drop-zone .dz-file-list:not(:empty) {
  border-top: 1px solid var(--grey-200);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--white);
}

.bi-drop-zone .dz-file-icon {
  color: var(--accent);
  font-size: 16px;
  flex-shrink: 0;
}

.bi-drop-zone .dz-file-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--white);
}

.bi-drop-zone .dz-file-size {
  color: var(--grey-500);
  font-size: 12px;
  flex-shrink: 0;
}

.bi-drop-zone .dz-file-remove {
  background: none;
  border: none;
  color: #666;
  font-size: 18px;
  cursor: pointer;
  line-height: 1;
  padding: 2px 4px;
  flex-shrink: 0;
  transition: color 0.2s;
}

.bi-drop-zone .dz-file-remove:hover { color: var(--accent); }

.bi-ownership-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 18px;
  font-size: 13px;
  color: var(--grey-400);
  font-weight: 300;
  line-height: 1.6;
  cursor: pointer;
}

.bi-ownership-check input {
  margin-top: 2px;
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.bi-preview-image {
  object-fit: cover;
  border-radius: 6px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.45);
  transition: width 0.2s ease, height 0.2s ease;
}

/* ── HEIGHT STEPPER (replaces native number-input arrows, which render
   near-invisible dark-on-dark in some browsers) ── */
.bi-height-stepper {
  display: flex;
  align-items: stretch;
  width: fit-content;
  border: 1.5px solid var(--grey-200);
  border-radius: 6px;
  overflow: hidden;
}

.bi-height-btn {
  width: 40px;
  background: var(--grey-100);
  border: none;
  color: var(--white);
  font-size: 18px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.bi-height-btn:hover {
  background: rgba(212,255,26,0.12);
  color: var(--accent);
}

.bi-height-value {
  width: 64px;
  text-align: center;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--white);
  background: var(--black);
  border: none;
  border-left: 1px solid var(--grey-200);
  border-right: 1px solid var(--grey-200);
}

.bi-height-value::-webkit-outer-spin-button,
.bi-height-value::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.bi-height-value { -moz-appearance: textfield; appearance: textfield; }

/* ── CROP EDITOR ──────────────────────────────
   Standard pattern: a fixed viewport holds the image, which you drag to
   pan and scroll/slider to zoom; an independent frame overlay (resizable
   via 8 handles) marks the region that gets exported. The frame starts
   sized to the image's full extent, so by default the whole image is
   selected — zooming/resizing only narrows it if you choose to. ── */
.bi-crop-editor {
  position: relative;
  width: 100%;
  max-width: 320px;
  user-select: none;
}

.bi-crop-viewport {
  position: relative;
  width: 100%;
  height: 320px;
  max-width: 320px;
  border-radius: 8px;
  overflow: hidden;
  background: #000;
  cursor: grab;
  touch-action: none;
}

.bi-crop-viewport:active { cursor: grabbing; }

.bi-crop-source-img {
  position: absolute;
  top: 0;
  left: 0;
  max-width: none;
  max-height: none;
  pointer-events: none;
}

.bi-crop-frame {
  position: absolute;
  top: 0;
  left: 0;
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 1000px rgba(0,0,0,0.6);
  pointer-events: none; /* body no longer drags the frame — handles do */
}

.bi-crop-handle {
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #000;
  pointer-events: auto;
  touch-action: none;
}

.bi-crop-handle--nw { top: -8px;  left: -8px;  cursor: nwse-resize; }
.bi-crop-handle--ne { top: -8px;  right: -8px; cursor: nesw-resize; }
.bi-crop-handle--sw { bottom: -8px; left: -8px;  cursor: nesw-resize; }
.bi-crop-handle--se { bottom: -8px; right: -8px; cursor: nwse-resize; }
.bi-crop-handle--n  { top: -8px;  left: 50%; margin-left: -8px; cursor: ns-resize; }
.bi-crop-handle--s  { bottom: -8px; left: 50%; margin-left: -8px; cursor: ns-resize; }
.bi-crop-handle--e  { top: 50%; right: -8px; margin-top: -8px; cursor: ew-resize; }
.bi-crop-handle--w  { top: 50%; left: -8px;  margin-top: -8px; cursor: ew-resize; }

.bi-crop-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 14px;
}

.bi-crop-reset {
  background: none;
  border: none;
  color: var(--grey-500);
  font-size: 12px;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  padding: 0;
  transition: color 0.2s;
}

.bi-crop-reset:hover { color: var(--white); }

.bi-crop-apply {
  background: var(--accent);
  color: var(--black);
  border: none;
  border-radius: 6px;
  padding: 10px 20px;
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.bi-crop-apply:hover { background: #e8ffb0; }
.bi-crop-apply:active { transform: scale(0.97); }

.bi-crop-apply--done {
  background: #2a6e2a;
  color: var(--white);
}

/* ── CROP STEP — attention + confirmed states ── */
.bi-crop-step-label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.bi-crop-step-num {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--black);
  background: var(--accent);
  padding: 3px 9px;
  border-radius: 3px;
}

@keyframes biCropAttention {
  0%, 100% { box-shadow: 0 0 0 0 rgba(212,255,26,0); }
  25%      { box-shadow: 0 0 0 6px rgba(212,255,26,0.18); }
  50%      { box-shadow: 0 0 0 0 rgba(212,255,26,0); }
  75%      { box-shadow: 0 0 0 6px rgba(212,255,26,0.18); }
}

.bi-crop-step--attention {
  border-radius: 10px;
  animation: biCropAttention 1.6s ease-in-out 2;
}

.bi-crop-confirmed-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
  background: var(--grey-100);
  border: 1.5px solid var(--grey-200);
  border-radius: 8px;
}

.bi-crop-confirmed-thumb {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 6px;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

.bi-crop-confirmed-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.bi-crop-confirmed-text strong {
  font-size: 14px;
  color: var(--accent);
}

.bi-crop-confirmed-text span {
  font-size: 12px;
  color: var(--grey-500);
}

.bi-crop-edit-btn {
  background: none;
  border: 1.5px solid var(--grey-200);
  color: var(--white);
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 13px;
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color 0.2s;
}

.bi-crop-edit-btn:hover { border-color: var(--accent); }

/* ── ZOOM SLIDER ── */
.bi-zoom-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
}

.bi-zoom-icon {
  font-size: 16px;
  color: var(--grey-500);
  flex-shrink: 0;
  width: 14px;
  text-align: center;
}

.bi-zoom-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--grey-200);
  outline: none;
}

.bi-zoom-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
}

.bi-zoom-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
}

/* Category tabs */
.bi-category-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.bi-cat-tab {
  padding: 12px 20px;
  background: var(--grey-100);
  border: 1.5px solid var(--grey-200);
  border-radius: 6px;
  color: var(--grey-400);
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.bi-cat-tab--active {
  border-color: var(--accent);
  color: var(--white);
  background: rgba(212,255,26,0.06);
}

.bi-cat-tab:hover:not(.bi-cat-tab--active) {
  border-color: rgba(212,255,26,0.35);
}

.bi-cat-price {
  font-size: 11px;
  color: var(--grey-500);
  letter-spacing: 0.04em;
}

/* Option blocks (shared with option-label look) */
.bi-option-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.bi-option-label {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-500);
}

.bi-text-input {
  width: 100%;
  background: var(--grey-100);
  border: 1.5px solid var(--grey-200);
  border-radius: 6px;
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--white);
  box-sizing: border-box;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.bi-text-input::placeholder { color: var(--grey-500); }

.bi-text-input:focus {
  outline: none;
  border-color: rgba(212,255,26,0.5);
  box-shadow: 0 0 0 3px rgba(212,255,26,0.08);
}

.bi-input-hint {
  font-size: 11px;
  color: var(--grey-500);
  font-weight: 300;
}

/* Colour swatches */
.bi-colour-swatches {
  display: flex;
  gap: 12px;
}

.bi-swatch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

.bi-swatch-dot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  outline: 2px solid transparent;
  outline-offset: 3px;
  transition: outline-color 0.2s, transform 0.2s;
}

.bi-swatch[data-colour="White"] .bi-swatch-dot { background: #f0f0f0; border: 1px solid #ccc; }
.bi-swatch[data-colour="Black"] .bi-swatch-dot { background: #1a1a1a; border: 1px solid #444; }

.bi-swatch--active .bi-swatch-dot {
  outline-color: var(--accent);
  transform: scale(1.1);
}

.bi-swatch-label {
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--grey-500);
}

.bi-swatch--active .bi-swatch-label { color: var(--white); }

/* Quantity tier grid */
.bi-tier-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.bi-tier-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 18px;
  background: var(--grey-100);
  border: 1.5px solid var(--grey-200);
  border-radius: 6px;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.2s, background 0.2s;
}

.bi-tier-card--active {
  border-color: var(--accent);
  background: rgba(212,255,26,0.05);
}

.bi-tier-card:hover:not(.bi-tier-card--active) {
  border-color: rgba(212,255,26,0.4);
}

.bi-tier-tag {
  position: absolute;
  top: -10px;
  right: 12px;
  background: var(--accent);
  color: var(--black);
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border-radius: 3px;
}

.bi-tier-name {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey-500);
}

.bi-tier-units {
  font-size: 11px;
  color: var(--grey-500);
}

.bi-tier-price {
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--white);
  line-height: 1.1;
  margin-top: 4px;
}

.bi-tier-card--active .bi-tier-price { color: var(--accent); }

.bi-tier-save {
  font-size: 11px;
  color: var(--accent);
  font-weight: 500;
}

/* Summary + CTA */
.bi-order-summary {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-top: 8px;
  border-top: 1px solid var(--grey-200);
}

.bi-summary-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 14px;
  color: var(--grey-400);
}

.bi-summary-price {
  font-family: var(--font-display);
  font-size: 32px;
  color: var(--accent);
}

.bi-order-btn {
  text-align: center;
  display: block;
  width: 100%;
  border: none;
  cursor: pointer;
}

.bi-order-note {
  font-size: 12px;
  font-weight: 300;
  color: var(--grey-500);
  line-height: 1.7;
  margin: 0;
}

/* ── FEATURES ── */
.bi-features {
  border-bottom: 1px solid var(--grey-200);
}

.bi-features-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.bi-feature {
  padding: 56px 40px;
  border-right: 1px solid var(--grey-200);
  border-top: 1px solid var(--grey-200);
  transition: background 0.3s;
}

.bi-feature:last-child { border-right: none; }
.bi-feature:hover { background: var(--grey-100); }

.bi-feature-icon {
  display: block;
  font-size: 24px;
  color: var(--accent);
  margin-bottom: 20px;
}

.bi-feature h3 {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--white);
  margin: 0 0 12px;
  letter-spacing: 0.02em;
}

.bi-feature p {
  font-size: 14px;
  font-weight: 300;
  color: var(--grey-400);
  line-height: 1.8;
  margin: 0;
}

/* ── REAL ORDERS / SOCIAL PROOF ── */
.bi-social {
  padding: 100px 0;
  border-bottom: 1px solid var(--grey-200);
  background: var(--grey-100);
}

.bi-social-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 64px;
}

.bi-social-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px);
  line-height: 0.95;
  color: var(--white);
  margin: 16px 0 16px;
}

.bi-social-sub {
  font-size: 15px;
  color: var(--grey-400);
  font-weight: 300;
  line-height: 1.8;
  max-width: 560px;
  margin: 0 0 40px;
}

.bi-social-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.bi-social-item {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--grey-200);
}

.bi-social-item img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  display: block;
}

/* ── EXAMPLE GALLERY ── */
.bi-gallery {
  padding: 100px 0;
  border-bottom: 1px solid var(--grey-200);
}

.bi-gallery-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 64px;
}

.bi-gallery-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px);
  line-height: 0.95;
  color: var(--white);
  margin: 16px 0 40px;
}

.bi-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.bi-gallery-item {
  margin: 0;
  border-radius: 8px;
  overflow: hidden;
  background: var(--grey-100);
  border: 1px solid var(--grey-200);
}

.bi-gallery-item img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  display: block;
}

/* This source photo is landscape (wide boot shot) — cropping it into the
   standard 3/4 portrait tile cuts off the name/flag detail entirely, so
   show it uncropped (letterboxed) instead. */
.bi-gallery-item--contain img {
  object-fit: contain;
  background: #0c0c0c;
}

.bi-gallery-item figcaption {
  padding: 14px 16px;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--grey-500);
}

.bi-gallery-note {
  margin: 28px 0 0;
  font-size: 12px;
  font-weight: 300;
  color: var(--grey-500);
  line-height: 1.7;
}

/* ── HOW IT WORKS ── */
.bi-how {
  padding: 100px 0;
  border-bottom: 1px solid var(--grey-200);
}

.bi-how-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 64px;
}

.bi-how-header {
  margin-bottom: 56px;
  max-width: 640px;
}

.bi-how-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px);
  line-height: 0.95;
  color: var(--white);
  margin: 16px 0;
}

.bi-how-sub {
  font-size: 15px;
  color: var(--grey-400);
  font-weight: 300;
  line-height: 1.8;
}

.bi-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 28px;
  padding: 32px 0;
  border-top: 1px solid var(--grey-200);
}

.bi-step-num {
  font-family: var(--font-display);
  font-size: 48px;
  color: rgba(255,255,255,0.08);
  line-height: 1;
}

.bi-step-title {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--white);
  margin: 0 0 8px;
  letter-spacing: 0.02em;
}

.bi-step-desc {
  font-size: 14px;
  color: var(--grey-400);
  font-weight: 300;
  line-height: 1.8;
  margin: 0;
  max-width: 640px;
}

.bi-care-box {
  margin-top: 40px;
  padding: 24px 28px;
  background: var(--grey-100);
  border: 1px solid var(--grey-200);
  border-radius: 8px;
}

.bi-care-box h4 {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--accent);
  margin: 0 0 10px;
  letter-spacing: 0.04em;
}

.bi-care-box p {
  font-size: 13px;
  color: var(--grey-400);
  font-weight: 300;
  line-height: 1.8;
  margin: 0 0 8px;
}

.bi-care-box p:last-child { margin-bottom: 0; }

/* ── FAQ ── */
.bi-faq {
  padding: 100px 0;
  border-bottom: 1px solid var(--grey-200);
}

.bi-faq-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 64px;
}

.bi-faq-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px);
  line-height: 0.95;
  color: var(--white);
  margin: 16px 0 48px;
}

.bi-faq-item {
  border-top: 1px solid var(--grey-200);
}

.bi-faq-item:last-child { border-bottom: 1px solid var(--grey-200); }

.bi-faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 22px 4px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--white);
}

.bi-faq-icon {
  font-size: 18px;
  color: var(--grey-500);
  transition: transform 0.25s;
  flex-shrink: 0;
}

.bi-faq-item--open .bi-faq-icon { transform: rotate(45deg); color: var(--accent); }

.bi-faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.bi-faq-item--open .bi-faq-a { max-height: 200px; }

.bi-faq-a p {
  font-size: 14px;
  color: var(--grey-400);
  font-weight: 300;
  line-height: 1.8;
  margin: 0 4px 22px;
  max-width: 640px;
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .bi-hero {
    grid-template-columns: 1fr;
    height: auto;
    padding: 88px 0 0;
  }
  .bi-hero-content { padding: 48px 40px 40px; }
  .bi-hero-title { font-size: clamp(56px, 10vw, 120px); }
  .bi-hero-visual { padding: 0 0 24px; width: 100%; }
  .bi-product-inner { grid-template-columns: 1fr; padding: 0 40px; }
  .bi-product-visual { position: static; }
  .bi-features-inner { grid-template-columns: repeat(2, 1fr); }
  .bi-feature:nth-child(2) { border-right: none; }
  .bi-how-inner, .bi-faq-inner { padding: 0 40px; }
  .bi-step { grid-template-columns: 56px 1fr; }
  .bi-gallery-inner { padding: 0 40px; }
  .bi-gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .bi-social-inner { padding: 0 40px; }
  .bi-hero-mosaic { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .bi-hero-content { padding: 40px 24px 32px; }
  .bi-hero-title { font-size: clamp(40px, 13vw, 80px); }
  .bi-hero-visual { padding: 0 0 20px; }
  .bi-product-inner { padding: 0 24px; }
  .bi-features-inner { grid-template-columns: 1fr; }
  .bi-feature { border-right: none; }
  .bi-how-inner, .bi-faq-inner { padding: 0 24px; }
  .bi-tier-grid { grid-template-columns: 1fr; }
  .bi-step { grid-template-columns: 1fr; gap: 10px; }
  .bi-gallery-inner { padding: 0 24px; }
  .bi-gallery-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .bi-social-inner { padding: 0 24px; }
  .bi-social-grid { grid-template-columns: 1fr; }
}