/* ============================================================
   Sands Designer Pro — Frontend Designer CSS v1.0.0
   Aesthetic: Industrial / Safety / High-Visibility
   Responsive: mobile-first, works 320px → 4K
   No external dependencies except Google Fonts (loaded by PHP)
============================================================ */

/* ── CSS Custom Properties ───────────────────────────────── */
:root {
  --sdp-yellow:      #F5C400;
  --sdp-yellow-dark: #E0B300;
  --sdp-dark:        #1A1A1A;
  --sdp-charcoal:    #2C2C2C;
  --sdp-mid:         #444444;
  --sdp-muted:       #6B6B6B;
  --sdp-light:       #F7F6F3;
  --sdp-lighter:     #FAFAF7;
  --sdp-white:       #FFFFFF;
  --sdp-border:      #E0DDD8;
  --sdp-border-dark: #C8C5BF;
  --sdp-danger:      #C62828;
  --sdp-success:     #2E7D32;
  --sdp-info:        #0D47A1;
  --sdp-radius:      6px;
  --sdp-radius-md:   10px;
  --sdp-radius-lg:   14px;
  --sdp-shadow-sm:   0 1px 4px rgba(0,0,0,0.08);
  --sdp-shadow:      0 2px 12px rgba(0,0,0,0.10);
  --sdp-shadow-lg:   0 8px 32px rgba(0,0,0,0.16);
  --sdp-shadow-xl:   0 20px 60px rgba(0,0,0,0.24);
  --sdp-font:        'Barlow', system-ui, -apple-system, sans-serif;
  --sdp-font-cond:   'Barlow Condensed', 'Barlow', system-ui, sans-serif;
  --sdp-transition:  all 0.15s ease;
}

/* ── Scoped Reset ─────────────────────────────────────────── */
.sdp-designer-wrap *,
.sdp-designer-wrap *::before,
.sdp-designer-wrap *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.sdp-designer-wrap button { cursor: pointer; }
.sdp-designer-wrap a      { text-decoration: none; }
.sdp-designer-wrap img    { max-width: 100%; display: block; }

/* ── App Wrapper ──────────────────────────────────────────── */
.sdp-designer-wrap {
  font-family: var(--sdp-font);
  color: var(--sdp-dark);
  background: var(--sdp-light);
  min-height: 600px;
  line-height: 1.5;
}

.sdp-app {
  font-family: var(--sdp-font);
  color: var(--sdp-dark);
  background: var(--sdp-light);
  min-height: 600px;
  border-radius: var(--sdp-radius-lg);
  overflow: hidden;
  box-shadow: var(--sdp-shadow-xl);
}

/* ══════════════════════════════════════════════════════════════
   HEADER
══════════════════════════════════════════════════════════════ */
.sdp-header {
  background: var(--sdp-dark);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 4px solid var(--sdp-yellow);
  flex-shrink: 0;
}

.sdp-header-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.sdp-logo {
  width: 42px;
  height: 42px;
  background: var(--sdp-yellow);
  color: var(--sdp-dark);
  border-radius: var(--sdp-radius);
  font-family: var(--sdp-font-cond);
  font-size: 19px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 1px;
  flex-shrink: 0;
}

.sdp-header-brand strong {
  display: block;
  font-family: var(--sdp-font-cond);
  font-size: 17px;
  font-weight: 900;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--sdp-white);
  line-height: 1.1;
}

.sdp-header-brand span {
  display: block;
  font-size: 11px;
  color: rgba(255,255,255,0.50);
  letter-spacing: 0.3px;
}

/* ══════════════════════════════════════════════════════════════
   STEP PROGRESS BAR
══════════════════════════════════════════════════════════════ */
.sdp-step-bar {
  display: flex;
  align-items: center;
  padding: 16px 24px;
  background: var(--sdp-white);
  border-bottom: 1px solid var(--sdp-border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.sdp-step-bar::-webkit-scrollbar { display: none; }

.sdp-step-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  position: relative;
}

.sdp-step-indicator:not(:last-child)::after {
  content: '';
  width: 36px;
  height: 2px;
  background: var(--sdp-border);
  margin: 0 10px;
  border-radius: 2px;
  flex-shrink: 0;
  transition: background 0.25s;
}

.sdp-step-indicator.done::after { background: var(--sdp-yellow); }

.sdp-step-dot {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid var(--sdp-border);
  background: var(--sdp-white);
  color: var(--sdp-muted);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--sdp-transition);
}

.sdp-step-indicator.active .sdp-step-dot {
  background: var(--sdp-yellow);
  border-color: var(--sdp-yellow);
  color: var(--sdp-dark);
  box-shadow: 0 0 0 4px rgba(245,196,0,0.18);
}

.sdp-step-indicator.done .sdp-step-dot {
  background: var(--sdp-charcoal);
  border-color: var(--sdp-charcoal);
  color: var(--sdp-yellow);
}

.sdp-step-indicator > span {
  font-size: 12px;
  font-weight: 600;
  color: var(--sdp-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  white-space: nowrap;
}

.sdp-step-indicator.active > span { color: var(--sdp-dark); }
.sdp-step-indicator.done > span   { color: var(--sdp-charcoal); }

/* ══════════════════════════════════════════════════════════════
   SHARED STEP STYLES
══════════════════════════════════════════════════════════════ */
.sdp-step {
  padding: 24px 28px;
}

.sdp-step-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--sdp-border);
}

.sdp-step-number {
  font-family: var(--sdp-font-cond);
  font-size: 48px;
  font-weight: 900;
  color: var(--sdp-yellow);
  line-height: 1;
  opacity: 0.30;
  flex-shrink: 0;
  user-select: none;
}

.sdp-step-header-text h2 {
  font-family: var(--sdp-font-cond);
  font-size: 24px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--sdp-dark);
  line-height: 1.1;
}

.sdp-step-header-text p {
  font-size: 13px;
  color: var(--sdp-muted);
  margin-top: 3px;
}

.sdp-step-footer {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--sdp-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

/* ══════════════════════════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════════════════════════ */
.sdp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--sdp-radius);
  border: 2px solid transparent;
  font-family: var(--sdp-font);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--sdp-transition);
  white-space: nowrap;
  letter-spacing: 0.2px;
  text-decoration: none;
  line-height: 1;
}

.sdp-btn:disabled,
.sdp-btn.disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Primary — yellow */
.sdp-btn-primary {
  background: var(--sdp-yellow);
  color: var(--sdp-dark);
  border-color: var(--sdp-yellow);
}
.sdp-btn-primary:hover:not(:disabled):not(.disabled) {
  background: var(--sdp-yellow-dark);
  border-color: var(--sdp-yellow-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(245,196,0,0.38);
}

/* Dark */
.sdp-btn-dark {
  background: var(--sdp-dark);
  color: var(--sdp-yellow);
  border-color: var(--sdp-dark);
}
.sdp-btn-dark:hover:not(:disabled) {
  background: var(--sdp-charcoal);
  border-color: var(--sdp-charcoal);
  transform: translateY(-1px);
  box-shadow: var(--sdp-shadow);
}

/* Outline */
.sdp-btn-outline {
  background: transparent;
  color: var(--sdp-dark);
  border-color: var(--sdp-border-dark);
}
.sdp-btn-outline:hover:not(:disabled) {
  border-color: var(--sdp-dark);
  background: var(--sdp-dark);
  color: var(--sdp-white);
}

/* Ghost */
.sdp-btn-ghost {
  background: transparent;
  color: var(--sdp-muted);
  border-color: transparent;
}
.sdp-btn-ghost:hover:not(:disabled) {
  color: var(--sdp-dark);
  background: var(--sdp-light);
}

/* Danger */
.sdp-btn-danger {
  background: transparent;
  color: var(--sdp-danger);
  border-color: var(--sdp-danger);
}
.sdp-btn-danger:hover:not(:disabled) {
  background: var(--sdp-danger);
  color: var(--sdp-white);
}

/* Sizes */
.sdp-btn-sm  { padding: 6px 13px; font-size: 12px; }
.sdp-btn-lg  { padding: 13px 28px; font-size: 15px; }
.sdp-btn-block { width: 100%; }

/* ══════════════════════════════════════════════════════════════
   FORM ELEMENTS
══════════════════════════════════════════════════════════════ */
.sdp-input,
.sdp-select,
.sdp-textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1.5px solid var(--sdp-border);
  border-radius: var(--sdp-radius);
  font-family: var(--sdp-font);
  font-size: 13px;
  color: var(--sdp-dark);
  background: var(--sdp-white);
  transition: border-color 0.12s, box-shadow 0.12s;
  display: block;
  line-height: 1.4;
}

.sdp-input:focus,
.sdp-select:focus,
.sdp-textarea:focus {
  outline: none;
  border-color: var(--sdp-yellow);
  box-shadow: 0 0 0 3px rgba(245,196,0,0.15);
}

.sdp-textarea { resize: vertical; min-height: 80px; }

.sdp-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--sdp-muted);
  margin-bottom: 4px;
}

.sdp-form-group { display: flex; flex-direction: column; gap: 4px; }
.sdp-form-row   { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.sdp-hint {
  font-size: 11px;
  color: var(--sdp-muted);
  line-height: 1.4;
  font-style: italic;
}

.sdp-color-input {
  width: 44px;
  height: 36px;
  padding: 2px;
  border: 1.5px solid var(--sdp-border);
  border-radius: var(--sdp-radius);
  cursor: pointer;
  background: var(--sdp-white);
}

.sdp-range {
  width: 100%;
  height: 4px;
  accent-color: var(--sdp-yellow);
  cursor: pointer;
  display: block;
  margin: 4px 0;
}

/* ══════════════════════════════════════════════════════════════
   STEP 1 — PRODUCT SELECTION
══════════════════════════════════════════════════════════════ */
.sdp-product-layout {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 18px;
  min-height: 420px;
}

/* Sidebar */
.sdp-product-sidebar {
  background: var(--sdp-white);
  border: 1px solid var(--sdp-border);
  border-radius: var(--sdp-radius);
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.sdp-sidebar-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--sdp-muted);
  padding: 0 8px 10px;
  border-bottom: 1px solid var(--sdp-border);
  margin-bottom: 6px;
}

.sdp-cat-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: var(--sdp-radius);
  font-family: var(--sdp-font);
  font-size: 13px;
  font-weight: 600;
  color: var(--sdp-mid);
  text-align: left;
  transition: var(--sdp-transition);
}

.sdp-cat-btn:hover { background: var(--sdp-light); color: var(--sdp-dark); }

.sdp-cat-btn.active {
  background: var(--sdp-dark);
  color: var(--sdp-yellow);
}

.sdp-cat-icon { font-size: 17px; flex-shrink: 0; line-height: 1; }

/* Main area */
.sdp-product-main {
  background: var(--sdp-white);
  border: 1px solid var(--sdp-border);
  border-radius: var(--sdp-radius);
  padding: 20px;
  min-height: 380px;
}

.sdp-section-title {
  font-family: var(--sdp-font-cond);
  font-size: 17px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--sdp-dark);
  margin-bottom: 16px;
}

/* Subcategory grid */
.sdp-subcategory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 12px;
}

.sdp-subcat-card {
  background: var(--sdp-light);
  border: 2px solid var(--sdp-border);
  border-radius: var(--sdp-radius);
  padding: 18px 14px;
  cursor: pointer;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 5px;
  transition: var(--sdp-transition);
  font-family: var(--sdp-font);
  width: 100%;
}

.sdp-subcat-card:hover {
  border-color: var(--sdp-yellow);
  background: #FFFDE7;
  transform: translateY(-2px);
  box-shadow: var(--sdp-shadow);
}

.sdp-subcat-count { font-size: 11px; color: var(--sdp-muted); font-weight: 600; text-transform: uppercase; }
.sdp-subcat-card strong { font-size: 14px; font-weight: 700; color: var(--sdp-dark); }
.sdp-subcat-arrow { font-size: 16px; color: var(--sdp-yellow); margin-top: auto; align-self: flex-end; }

/* Breadcrumb */
.sdp-breadcrumb {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  margin-bottom: 16px;
  color: var(--sdp-muted);
}

.sdp-breadcrumb-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--sdp-dark);
  font-family: var(--sdp-font);
  font-weight: 700;
  font-size: 13px;
  padding: 3px 6px;
  border-radius: 4px;
  transition: var(--sdp-transition);
}

.sdp-breadcrumb-btn:hover { background: var(--sdp-light); }

/* Product grid */
.sdp-product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(185px, 1fr));
  gap: 14px;
}

.sdp-product-card {
  border: 2px solid var(--sdp-border);
  border-radius: var(--sdp-radius);
  overflow: hidden;
  cursor: pointer;
  background: var(--sdp-white);
  transition: var(--sdp-transition);
  display: flex;
  flex-direction: column;
}

.sdp-product-card:hover {
  border-color: var(--sdp-yellow);
  transform: translateY(-2px);
  box-shadow: var(--sdp-shadow);
}

.sdp-product-card.selected {
  border-color: var(--sdp-dark);
  box-shadow: 0 0 0 3px rgba(245,196,0,0.40);
}

.sdp-product-mock-thumb {
  background: #F0EEE9;
  padding: 12px 14px 6px;
  position: relative;
  line-height: 0;
}

.sdp-product-mock-thumb svg {
  width: 100%;
  height: auto;
  display: block;
}

/* Stripe bar — color identifier at top of card */
.sdp-strip-bar {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 5px;
  border-radius: 0;
  z-index: 2;
}

.sdp-product-info {
  padding: 10px 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  flex: 1;
}

.sdp-product-info strong {
  font-size: 13px;
  font-weight: 700;
  color: var(--sdp-dark);
  line-height: 1.3;
}

.sdp-product-price {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
}

.sdp-price     { font-size: 13px; font-weight: 700; color: var(--sdp-dark); }
.sdp-min-qty   { font-size: 11px; color: var(--sdp-muted); background: var(--sdp-light); padding: 2px 7px; border-radius: 3px; }
.sdp-card-cta  { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--sdp-yellow-dark); margin-top: 2px; }

/* Front/Back badge on card */
.sdp-fb-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--sdp-dark);
  color: var(--sdp-yellow);
  font-size: 9px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 3px;
  margin-top: 3px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  width: fit-content;
}

/* Strip color filter bar */
.sdp-strip-filter {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 14px;
  padding: 10px 14px;
  background: var(--sdp-light);
  border: 1px solid var(--sdp-border);
  border-radius: var(--sdp-radius);
}

.sdp-strip-filter-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--sdp-muted);
  white-space: nowrap;
}

.sdp-strip-chip {
  padding: 4px 11px;
  border-radius: 20px;
  border: 2px solid var(--sdp-border);
  background: var(--sdp-white);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--sdp-font);
  transition: var(--sdp-transition);
  color: var(--sdp-dark);
  min-width: 30px;
  text-align: center;
}

.sdp-strip-chip:hover { border-color: var(--sdp-dark); transform: scale(1.05); }
.sdp-strip-chip.active { border-color: var(--sdp-dark); box-shadow: 0 0 0 2px var(--sdp-dark); }
.sdp-strip-chip-all.active { background: var(--sdp-dark); color: var(--sdp-yellow); }

/* Empty state */
.sdp-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  gap: 10px;
  text-align: center;
  padding: 32px;
}

.sdp-empty-icon { font-size: 44px; opacity: 0.35; }
.sdp-empty-state h3 { font-family: var(--sdp-font-cond); font-size: 20px; font-weight: 700; color: var(--sdp-dark); text-transform: uppercase; }
.sdp-empty-state p  { font-size: 13px; color: var(--sdp-muted); max-width: 280px; }

/* ── Color swatches & pills ─────────────────────────────── */
.sdp-color-swatches { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.sdp-swatch {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.12s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.22);
  flex-shrink: 0;
  border: 2px solid transparent;
}

.sdp-swatch:hover { transform: scale(1.18); }
.sdp-swatch.active { outline: 3px solid var(--sdp-dark); outline-offset: 3px; }

.sdp-selected-label { font-size: 12px; color: var(--sdp-muted); margin-top: 2px; }

.sdp-pills { display: flex; flex-wrap: wrap; gap: 6px; }

.sdp-pill {
  padding: 5px 11px;
  border-radius: 4px;
  border: 1.5px solid var(--sdp-border);
  background: var(--sdp-white);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--sdp-font);
  transition: var(--sdp-transition);
  color: var(--sdp-dark);
}

.sdp-pill:hover  { border-color: var(--sdp-dark); }
.sdp-pill.active { background: var(--sdp-dark); color: var(--sdp-yellow); border-color: var(--sdp-dark); }

/* ── Option group ───────────────────────────────────────── */
.sdp-option-group { display: flex; flex-direction: column; gap: 7px; }
.sdp-option-group label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--sdp-muted); }

/* ── Size chart button ──────────────────────────────────── */
.sdp-size-label-row {
  display: flex !important;
  align-items: center;
  gap: 6px;
}

.sdp-size-chart-btn {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--sdp-dark);
  color: var(--sdp-yellow);
  font-size: 9px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--sdp-transition);
}

.sdp-size-chart-btn:hover { background: var(--sdp-charcoal); transform: scale(1.12); }

/* ══════════════════════════════════════════════════════════════
   PRODUCT CONFIG MODAL
══════════════════════════════════════════════════════════════ */
.sdp-config-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.60);
  z-index: 99998;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: sdp-fade-in 0.18s ease;
}

.sdp-config-modal {
  background: var(--sdp-white);
  border-radius: var(--sdp-radius-lg);
  box-shadow: var(--sdp-shadow-xl);
  display: grid;
  grid-template-columns: 260px 1fr;
  width: 100%;
  max-width: 700px;
  max-height: 90vh;
  overflow: hidden;
  animation: sdp-slide-up 0.22s ease;
}

.sdp-config-preview {
  background: #F0EEE9;
  padding: 24px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-right: 1px solid var(--sdp-border);
  overflow-y: auto;
}

.sdp-config-mock {
  background: var(--sdp-white);
  border-radius: var(--sdp-radius-md);
  padding: 10px;
  box-shadow: var(--sdp-shadow);
  line-height: 0;
}

.sdp-config-mock svg { width: 100%; height: auto; display: block; }

.sdp-config-product-meta { display: flex; flex-direction: column; gap: 4px; }

.sdp-config-product-meta strong {
  font-size: 14px;
  font-weight: 700;
  color: var(--sdp-dark);
  line-height: 1.3;
}

.sdp-config-product-meta span {
  font-size: 12px;
  color: var(--sdp-muted);
  line-height: 1.4;
}

.sdp-config-price {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.sdp-config-options {
  padding: 24px 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  overflow-y: auto;
}

.sdp-config-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--sdp-border);
}

.sdp-config-header h3 {
  font-family: var(--sdp-font-cond);
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--sdp-dark);
}

.sdp-config-close {
  background: var(--sdp-light);
  border: none;
  font-size: 16px;
  cursor: pointer;
  color: var(--sdp-muted);
  padding: 4px 9px;
  border-radius: 6px;
  transition: var(--sdp-transition);
  flex-shrink: 0;
}

.sdp-config-close:hover { background: #E0E0E0; color: var(--sdp-dark); }

.sdp-config-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--sdp-border);
  flex-wrap: wrap;
}

/* ══════════════════════════════════════════════════════════════
   SIZE CHART MODAL
══════════════════════════════════════════════════════════════ */
.sdp-sizechart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: sdp-fade-in 0.18s ease;
}

.sdp-sizechart-modal {
  background: var(--sdp-white);
  border-radius: var(--sdp-radius-md);
  box-shadow: var(--sdp-shadow-xl);
  padding: 26px 30px;
  min-width: 320px;
  max-width: 90vw;
  animation: sdp-slide-up 0.22s ease;
}

.sdp-sizechart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.sdp-sizechart-title {
  font-family: var(--sdp-font-cond);
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--sdp-dark);
}

.sdp-sizechart-close {
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: var(--sdp-muted);
  padding: 2px 6px;
  border-radius: 4px;
  transition: var(--sdp-transition);
}

.sdp-sizechart-close:hover { background: var(--sdp-light); color: var(--sdp-dark); }

.sdp-sizechart-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--sdp-font);
  font-size: 13px;
}

.sdp-sizechart-table th,
.sdp-sizechart-table td {
  border: 1px solid var(--sdp-border);
  padding: 8px 16px;
  text-align: center;
}

.sdp-sizechart-table thead tr:first-child th {
  background: var(--sdp-dark);
  color: var(--sdp-yellow);
  font-family: var(--sdp-font-cond);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-color: var(--sdp-dark);
}

.sdp-sizechart-table thead tr:last-child th {
  background: var(--sdp-light);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--sdp-muted);
}

.sdp-sizechart-table tbody tr:hover td { background: var(--sdp-light); }
.sdp-sizechart-table tbody td:first-child { font-weight: 700; color: var(--sdp-dark); }

/* ══════════════════════════════════════════════════════════════
   STEP 2 — DESIGN CANVAS
══════════════════════════════════════════════════════════════ */
.sdp-design-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 18px;
  min-height: 520px;
}

/* Tools panel */
.sdp-tools-panel {
  background: var(--sdp-white);
  border: 1px solid var(--sdp-border);
  border-radius: var(--sdp-radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow-y: auto;
  max-height: 640px;
}

.sdp-tool-tabs {
  display: flex;
  gap: 3px;
  background: var(--sdp-light);
  padding: 3px;
  border-radius: var(--sdp-radius);
}

.sdp-tool-tab {
  flex: 1;
  padding: 7px 4px;
  border: none;
  background: none;
  border-radius: 4px;
  font-family: var(--sdp-font);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  color: var(--sdp-muted);
  transition: var(--sdp-transition);
  text-align: center;
}

.sdp-tool-tab.active {
  background: var(--sdp-white);
  color: var(--sdp-dark);
  box-shadow: 0 1px 4px rgba(0,0,0,0.10);
}

.sdp-tool-section { display: flex; flex-direction: column; gap: 10px; }

.sdp-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: start;
}

.sdp-file-btn {
  text-align: center;
  cursor: pointer;
  display: block;
  border-style: dashed;
}

/* Layers list */
.sdp-layers-list { display: flex; flex-direction: column; gap: 4px; }

.sdp-layers-list h4 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--sdp-muted);
  margin-bottom: 6px;
}

.sdp-layer-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--sdp-radius);
  border: 1.5px solid var(--sdp-border);
  cursor: pointer;
  background: var(--sdp-white);
  transition: var(--sdp-transition);
}

.sdp-layer-item:hover  { border-color: var(--sdp-charcoal); }
.sdp-layer-item.active { border-color: var(--sdp-yellow); background: #FFFDE7; }

.sdp-layer-icon { font-size: 14px; flex-shrink: 0; }

.sdp-layer-name {
  flex: 1;
  font-size: 12px;
  font-weight: 500;
  color: var(--sdp-dark);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 140px;
}

.sdp-layer-delete {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--sdp-muted);
  font-size: 15px;
  padding: 0 2px;
  line-height: 1;
  transition: color 0.12s;
  flex-shrink: 0;
}

.sdp-layer-delete:hover { color: var(--sdp-danger); }

/* View badge on layer */
.sdp-vbadge {
  display: inline-block;
  font-size: 9px;
  font-weight: 800;
  padding: 1px 5px;
  border-radius: 3px;
  letter-spacing: 0.8px;
  vertical-align: middle;
  margin-left: 4px;
}

.sdp-vbadge--front { background: var(--sdp-yellow); color: var(--sdp-dark); }
.sdp-vbadge--back  { background: var(--sdp-dark); color: var(--sdp-yellow); }

/* Layer controls (selected layer sidebar) */
.sdp-layer-controls {
  background: var(--sdp-light);
  border: 1px solid var(--sdp-border);
  border-radius: var(--sdp-radius);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sdp-layer-controls h4 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--sdp-muted);
}

/* Canvas area */
.sdp-canvas-area {
  background: #EDEBE6;
  border: 1px solid var(--sdp-border);
  border-radius: var(--sdp-radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 18px;
  overflow: auto;
  min-height: 440px;
  position: relative;
}

.sdp-canvas-wrap {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  overflow: visible;
  padding: 6px 12px 14px;
  transition: height 0.15s;
}

.sdp-canvas-wrap svg { overflow: visible; }

.sdp-canvas-hint {
  font-size: 11px;
  color: var(--sdp-muted);
  margin-top: 10px;
  text-align: center;
  font-style: italic;
}

/* ── Front / Back Toggle ────────────────────────────────── */
.sdp-fb-toggle {
  margin-bottom: 12px;
  border-radius: var(--sdp-radius);
  overflow: hidden;
  border: 1.5px solid var(--sdp-border);
  background: var(--sdp-white);
  width: 100%;
}

.sdp-fb-toggle-bar {
  display: flex;
  align-items: stretch;
}

.sdp-fb-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 12px;
  background: var(--sdp-light);
  border: none;
  cursor: pointer;
  font-family: var(--sdp-font);
  font-size: 13px;
  font-weight: 700;
  color: var(--sdp-muted);
  transition: var(--sdp-transition);
  position: relative;
}

.sdp-fb-btn:hover:not(.active) { background: #E8E6E0; color: var(--sdp-dark); }

.sdp-fb-btn.active {
  background: var(--sdp-dark);
  color: var(--sdp-yellow);
}

.sdp-fb-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--sdp-yellow);
}

.sdp-fb-divider { width: 1px; background: var(--sdp-border); flex-shrink: 0; }

.sdp-fb-count {
  background: var(--sdp-yellow);
  color: var(--sdp-dark);
  font-size: 10px;
  font-weight: 900;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  line-height: 1;
}

.sdp-fb-btn:not(.active) .sdp-fb-count { background: var(--sdp-dark); color: var(--sdp-yellow); }

.sdp-fb-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: #FAFAF7;
  border-top: 1px solid var(--sdp-border);
  flex-wrap: wrap;
}

.sdp-fb-pill {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 12px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.sdp-fb-pill--front { background: #FFFDE7; color: #E65100; border: 1px solid #FFE082; }
.sdp-fb-pill--back  { background: #F3E5F5; color: #6A1B9A; border: 1px solid #CE93D8; }
.sdp-fb-hint        { font-size: 11px; color: var(--sdp-muted); line-height: 1.3; }

/* ── Zoom bar ───────────────────────────────────────────── */
.sdp-zoom-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--sdp-white);
  border: 1px solid var(--sdp-border);
  border-radius: 8px;
  padding: 5px 12px;
  margin-bottom: 10px;
  box-shadow: var(--sdp-shadow-sm);
  width: fit-content;
  align-self: center;
  flex-wrap: wrap;
}

.sdp-zoom-btn {
  width: 28px;
  height: 28px;
  border: 1.5px solid var(--sdp-border);
  border-radius: 5px;
  background: var(--sdp-white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sdp-dark);
  transition: var(--sdp-transition);
  flex-shrink: 0;
}

.sdp-zoom-btn:hover { background: var(--sdp-dark); border-color: var(--sdp-dark); color: var(--sdp-white); }
.sdp-zoom-btn:disabled { opacity: 0.30; cursor: not-allowed; }

.sdp-zoom-track { min-width: 80px; max-width: 100px; flex: 1; }

.sdp-zoom-range {
  width: 100%;
  height: 4px;
  appearance: none;
  background: var(--sdp-border);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
  accent-color: var(--sdp-yellow);
}

.sdp-zoom-range::-webkit-slider-thumb {
  appearance: none;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--sdp-dark);
  border: 2px solid var(--sdp-yellow);
  cursor: pointer;
  box-shadow: var(--sdp-shadow-sm);
}

.sdp-zoom-pct {
  font-size: 12px;
  font-weight: 800;
  color: var(--sdp-dark);
  min-width: 36px;
  text-align: center;
  letter-spacing: 0.2px;
}

.sdp-zoom-reset {
  background: none;
  border: 1.5px solid var(--sdp-border);
  border-radius: 4px;
  padding: 2px 7px;
  font-size: 11px;
  font-weight: 700;
  font-family: var(--sdp-font);
  color: var(--sdp-muted);
  cursor: pointer;
  transition: var(--sdp-transition);
}

.sdp-zoom-reset:hover { border-color: var(--sdp-dark); color: var(--sdp-dark); }

.sdp-undo-redo {
  display: flex;
  gap: 2px;
  border-left: 1px solid var(--sdp-border);
  padding-left: 8px;
  margin-left: 2px;
}

/* ══════════════════════════════════════════════════════════════
   STEP 3 — PREVIEW & EXPORT
══════════════════════════════════════════════════════════════ */
.sdp-preview-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 22px;
  align-items: start;
}

.sdp-preview-canvas {
  background: #EDEBE6;
  border: 1px solid var(--sdp-border);
  border-radius: var(--sdp-radius);
  padding: 20px 28px 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

/* Info / summary cards */
.sdp-info-card,
.sdp-summary-card,
.sdp-detail-card {
  background: var(--sdp-white);
  border: 1px solid var(--sdp-border);
  border-radius: var(--sdp-radius);
  padding: 18px 20px;
  margin-bottom: 14px;
}

.sdp-info-card:last-child,
.sdp-summary-card:last-child,
.sdp-detail-card:last-child { margin-bottom: 0; }

.sdp-info-card h3,
.sdp-summary-card h3 {
  font-family: var(--sdp-font-cond);
  font-size: 17px;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 14px;
  padding-bottom: 9px;
  border-bottom: 2px solid var(--sdp-yellow);
  color: var(--sdp-dark);
}

.sdp-info-dl,
.sdp-summary-dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 14px;
  font-size: 13px;
}

.sdp-info-dl dt, .sdp-summary-dl dt { color: var(--sdp-muted); font-weight: 600; white-space: nowrap; }
.sdp-info-dl dd, .sdp-summary-dl dd { color: var(--sdp-dark); font-weight: 500; display: flex; align-items: center; gap: 6px; }

.sdp-color-dot {
  display: inline-block;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 1.5px solid rgba(0,0,0,0.15);
  flex-shrink: 0;
}

.sdp-export-actions { display: flex; flex-direction: column; gap: 10px; }
.sdp-preview-info   { display: flex; flex-direction: column; gap: 0; }

/* ══════════════════════════════════════════════════════════════
   STEP 4 — ORDER FORM
══════════════════════════════════════════════════════════════ */
.sdp-order-layout {
  display: grid;
  grid-template-columns: 1fr 290px;
  gap: 22px;
  align-items: start;
}

.sdp-order-form { display: flex; flex-direction: column; gap: 18px; }

.sdp-form-section {
  background: var(--sdp-white);
  border: 1px solid var(--sdp-border);
  border-radius: var(--sdp-radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.sdp-form-section h3 {
  font-family: var(--sdp-font-cond);
  font-size: 16px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--sdp-dark);
  padding-bottom: 10px;
  border-bottom: 2px solid var(--sdp-yellow);
}

.sdp-form-group--sm { flex: 0 0 auto; min-width: 75px; }

.sdp-error-msg {
  background: #FFEBEE;
  border: 1.5px solid #EF9A9A;
  color: var(--sdp-danger);
  border-radius: var(--sdp-radius);
  padding: 11px 16px;
  font-size: 13px;
  font-weight: 600;
}

/* Order summary sidebar */
.sdp-order-summary {}

.sdp-order-summary h3 {
  font-family: var(--sdp-font-cond);
  font-size: 16px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--sdp-dark);
  margin-bottom: 12px;
}

.sdp-summary-product {
  font-family: var(--sdp-font-cond);
  font-size: 19px;
  font-weight: 900;
  color: var(--sdp-dark);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--sdp-yellow);
}

.sdp-summary-qty-row {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid var(--sdp-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.sdp-summary-qty-row strong { font-size: 15px; font-weight: 900; }

.sdp-summary-note {
  font-size: 11px;
  color: var(--sdp-muted);
  margin-top: 8px;
  line-height: 1.4;
  font-style: italic;
}

/* ══════════════════════════════════════════════════════════════
   CONFIRMATION SCREEN
══════════════════════════════════════════════════════════════ */
.sdp-confirmation {
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  background: var(--sdp-light);
}

.sdp-confirmation-inner {
  text-align: center;
  max-width: 440px;
  background: var(--sdp-white);
  border-radius: var(--sdp-radius-lg);
  padding: 44px 36px;
  box-shadow: var(--sdp-shadow-xl);
  border-top: 4px solid var(--sdp-yellow);
}

.sdp-confirm-icon {
  width: 68px;
  height: 68px;
  background: var(--sdp-yellow);
  color: var(--sdp-dark);
  border-radius: 50%;
  font-size: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  font-weight: 900;
}

.sdp-confirmation-inner h2 {
  font-family: var(--sdp-font-cond);
  font-size: 30px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.sdp-confirmation-inner p {
  font-size: 14px;
  color: var(--sdp-muted);
  line-height: 1.6;
  margin-bottom: 22px;
}

.sdp-confirm-id {
  background: var(--sdp-dark);
  color: var(--sdp-white);
  padding: 14px 22px;
  border-radius: var(--sdp-radius);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  margin-bottom: 18px;
}

.sdp-confirm-id span   { font-size: 10px; opacity: 0.50; text-transform: uppercase; letter-spacing: 1px; }
.sdp-confirm-id strong { font-family: var(--sdp-font-cond); font-size: 26px; letter-spacing: 2px; color: var(--sdp-yellow); }
.sdp-confirm-hint      { font-size: 12px; color: var(--sdp-muted); margin-bottom: 22px; }

/* ══════════════════════════════════════════════════════════════
   ANIMATIONS
══════════════════════════════════════════════════════════════ */
@keyframes sdp-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes sdp-slide-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════════ */

/* Tablet — 960px */
@media (max-width: 960px) {
  .sdp-preview-layout { grid-template-columns: 1fr; }
  .sdp-order-layout   { grid-template-columns: 1fr; }

  .sdp-preview-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .sdp-order-summary { order: -1; }
}

/* Tablet portrait — 768px */
@media (max-width: 768px) {
  .sdp-step { padding: 16px; }

  .sdp-step-bar {
    padding: 12px 16px;
    gap: 0;
  }

  .sdp-step-indicator > span { display: none; }
  .sdp-step-indicator:not(:last-child)::after { width: 24px; margin: 0 6px; }

  .sdp-product-layout  { grid-template-columns: 1fr; }
  .sdp-design-layout   { grid-template-columns: 1fr; }

  .sdp-product-sidebar {
    flex-direction: row;
    flex-wrap: wrap;
    padding: 8px;
    gap: 4px;
  }

  .sdp-sidebar-label { display: none; }

  .sdp-cat-btn { width: auto; flex: 1; min-width: 90px; justify-content: center; }

  .sdp-tools-panel { max-height: none; }

  .sdp-design-layout {
    display: flex;
    flex-direction: column-reverse;
    gap: 14px;
  }

  .sdp-form-row { grid-template-columns: 1fr; }

  .sdp-preview-info { grid-template-columns: 1fr; }

  .sdp-config-modal {
    grid-template-columns: 1fr;
    max-height: 92vh;
  }

  .sdp-config-preview {
    border-right: none;
    border-bottom: 1px solid var(--sdp-border);
    padding: 16px;
    flex-direction: row;
    align-items: center;
    gap: 14px;
  }

  .sdp-config-mock { width: 90px; flex-shrink: 0; }
  .sdp-config-options { padding: 16px; }

  .sdp-step-header { gap: 10px; }
  .sdp-step-number { font-size: 36px; }
}

/* Mobile — 480px */
@media (max-width: 480px) {
  .sdp-step { padding: 12px; }

  .sdp-header { padding: 10px 14px; }
  .sdp-logo   { width: 36px; height: 36px; font-size: 16px; }

  .sdp-product-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
  .sdp-subcategory-grid { grid-template-columns: 1fr 1fr; }

  .sdp-zoom-bar { flex-wrap: wrap; gap: 6px; padding: 6px 10px; }
  .sdp-zoom-track { min-width: 60px; }

  .sdp-fb-btn { font-size: 12px; padding: 8px 6px; }

  .sdp-confirmation-inner { padding: 28px 20px; }
  .sdp-confirm-id strong  { font-size: 22px; }
}