/* ================================================================
   GB QR Generator v2.2 — qr.io-inspired clean white design
   Pure white, step wizard, horizontal type tabs, visual shape
   swatches, prominent preview card on the right.
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  --c-bg:        #f5f6f8;
  --c-white:     #ffffff;
  --c-border:    #e8eaed;
  --c-border-2:  #d1d5db;
  --c-text:      #111827;
  --c-text-2:    #6b7280;
  --c-text-3:    #9ca3af;
  --c-accent:    #4f46e5;
  --c-accent-h:  #4338ca;
  --c-accent-bg: #eef2ff;
  --c-success:   #16a34a;
  --c-danger:    #dc2626;
  --c-shadow:    0 1px 3px rgba(0,0,0,.07), 0 4px 16px rgba(0,0,0,.06);
  --c-shadow-lg: 0 4px 6px rgba(0,0,0,.05), 0 20px 60px rgba(0,0,0,.1);
  --radius:      12px;
  --radius-sm:   8px;
  --radius-xs:   6px;
  --ease:        cubic-bezier(.4,0,.2,1);
  --t:           160ms;
}

/* ── Reset & base ────────────────────────────────────────────── */
.gb-qrgen, .gb-qrgen * { box-sizing: border-box; margin: 0; padding: 0; }
.gb-qrgen {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  font-size: 14px; color: var(--c-text);
  background: var(--c-bg);
  border-radius: 18px;
  overflow: hidden;
}

/* ── Outer wrapper ───────────────────────────────────────────── */
.gbq-wrap {
  display: grid;
  grid-template-columns: 1fr;
  min-height: 600px;
}
@media (min-width: 920px) {
  .gbq-wrap { grid-template-columns: 1fr 360px; align-items: start; }
}

/* ════════════════════════════════════════════════════════════════
   LEFT: Builder panel
   ════════════════════════════════════════════════════════════════ */
.gbq-builder {
  background: var(--c-white);
  padding: 0;
  display: flex; flex-direction: column;
  border-right: 1px solid var(--c-border);
}

/* ── Step header ─────────────────────────────────────────────── */
.gbq-steps {
  display: flex; align-items: stretch;
  border-bottom: 1px solid var(--c-border);
  background: var(--c-white);
  position: sticky; top: 0; z-index: 10;
}
.gbq-step {
  display: flex; align-items: center; gap: 10px;
  padding: 16px 20px;
  cursor: pointer; user-select: none;
  border-bottom: 2px solid transparent;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
  flex: 1; justify-content: center;
}
.gbq-step:hover { background: var(--c-bg); }
.gbq-step--active { border-bottom-color: var(--c-accent); }
.gbq-step-num {
  width: 24px; height: 24px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700;
  background: var(--c-border); color: var(--c-text-2);
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
  flex-shrink: 0;
}
.gbq-step--active .gbq-step-num,
.gbq-step--done .gbq-step-num { background: var(--c-accent); color: #fff; }
.gbq-step--done .gbq-step-num::after { content: '✓'; font-size: 11px; }
.gbq-step-label { font-size: 13px; font-weight: 600; color: var(--c-text-2); white-space: nowrap; }
.gbq-step--active .gbq-step-label { color: var(--c-accent); }
.gbq-step--done .gbq-step-label  { color: var(--c-text); }

/* ── Step body ───────────────────────────────────────────────── */
.gbq-step-body { padding: 24px; display: flex; flex-direction: column; gap: 18px; }
.gbq-step-body.gbq-hidden { display: none; }

/* ════════════════════════════════════════════════════════════════
   STEP 1 — Type picker
   ════════════════════════════════════════════════════════════════ */
.gbq-type-scroll {
  display: flex; flex-direction: column; gap: 16px;
  max-height: 440px; overflow-y: auto; padding-right: 4px;
  scrollbar-width: thin; scrollbar-color: var(--c-border) transparent;
}
.gbq-type-scroll::-webkit-scrollbar { width: 4px; }
.gbq-type-scroll::-webkit-scrollbar-thumb { background: var(--c-border); border-radius: 4px; }

.gbq-group-head {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .7px; color: var(--c-text-3); margin-bottom: 4px;
}

.gbq-type-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 8px;
}
.gbq-type-card {
  display: flex; flex-direction: column; align-items: center;
  gap: 6px; padding: 12px 8px 10px;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-white);
  cursor: pointer; transition: border-color var(--t) var(--ease),
    box-shadow var(--t) var(--ease), transform var(--t) var(--ease);
  text-align: center;
}
.gbq-type-card:hover {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px var(--c-accent-bg);
  transform: translateY(-1px);
}
.gbq-type-card--active {
  border-color: var(--c-accent);
  background: var(--c-accent-bg);
  box-shadow: 0 0 0 3px var(--c-accent-bg);
}
.gbq-tc-icon { font-size: 22px; line-height: 1; }
.gbq-tc-label { font-size: 11px; font-weight: 600; color: var(--c-text-2); line-height: 1.2; }
.gbq-type-card--active .gbq-tc-label { color: var(--c-accent); }

/* ════════════════════════════════════════════════════════════════
   STEP 2 — Content fields
   ════════════════════════════════════════════════════════════════ */
.gbq-active-type {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; border-radius: var(--radius-sm);
  background: var(--c-accent-bg); border: 1px solid #c7d2fe;
  margin-bottom: 4px;
}
.gbq-active-icon { font-size: 20px; }
.gbq-active-name { font-size: 14px; font-weight: 700; color: var(--c-accent); }
.gbq-active-change {
  margin-left: auto; font-size: 12px; font-weight: 600;
  color: var(--c-accent); cursor: pointer; text-decoration: underline;
  background: none; border: none; font-family: inherit;
}
.gbq-active-change:hover { color: var(--c-accent-h); }

.gbq-fields { display: flex; flex-direction: column; gap: 14px; }
.gbq-field { display: flex; flex-direction: column; gap: 6px; }
.gbq-field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.gbq-label {
  font-size: 12px; font-weight: 600; color: var(--c-text);
  letter-spacing: .1px;
}
.gbq-input, .gbq-textarea, .gbq-select {
  width: 100%; padding: 10px 13px;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-xs);
  background: var(--c-white);
  font-size: 13.5px; color: var(--c-text);
  outline: none; font-family: inherit;
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
  appearance: none; -webkit-appearance: none;
}
.gbq-input:focus, .gbq-textarea:focus, .gbq-select:focus {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px var(--c-accent-bg);
}
.gbq-input::placeholder, .gbq-textarea::placeholder { color: var(--c-text-3); }
.gbq-textarea { min-height: 80px; resize: vertical; }
.gbq-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
  padding-right: 32px; cursor: pointer;
}
.gbq-checkbox-row { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.gbq-checkbox-row input { width: 15px; height: 15px; accent-color: var(--c-accent); cursor: pointer; }
.gbq-checkbox-row span { font-size: 13px; font-weight: 500; color: var(--c-text-2); }
.gbq-hint {
  padding: 9px 12px; border-radius: var(--radius-xs);
  background: #fafafa; border: 1px solid var(--c-border);
  font-size: 12px; color: var(--c-text-2); line-height: 1.55;
}

/* ════════════════════════════════════════════════════════════════
   STEP 3 — Customise
   ════════════════════════════════════════════════════════════════ */
.gbq-customize { display: flex; flex-direction: column; gap: 20px; }

.gbq-section-title {
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .6px; color: var(--c-text-3); margin-bottom: -6px;
}

/* Colour row */
.gbq-color-row { display: flex; gap: 12px; }
.gbq-color-field { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.gbq-colorbox {
  display: flex; align-items: center; gap: 10px;
  border: 1.5px solid var(--c-border); border-radius: var(--radius-xs);
  padding: 8px 12px; cursor: pointer; background: var(--c-white);
  transition: border-color var(--t) var(--ease);
}
.gbq-colorbox:hover { border-color: var(--c-accent); }
.gbq-color { width: 28px; height: 28px; border: none; border-radius: 6px; cursor: pointer; padding: 0; background: none; }
.gbq-colorval { font-size: 12.5px; font-family: 'SF Mono', 'JetBrains Mono', monospace; color: var(--c-text-2); }

/* Themes */
.gbq-themes { display: flex; flex-wrap: wrap; gap: 7px; }
.gbq-theme-swatch {
  width: 30px; height: 30px; border-radius: 50%;
  background: linear-gradient(135deg, var(--sw-fg) 50%, var(--sw-bg) 50%);
  border: 2.5px solid var(--c-border);
  cursor: pointer; transition: transform var(--t) var(--ease), border-color var(--t) var(--ease);
}
.gbq-theme-swatch:hover, .gbq-theme-swatch--active {
  transform: scale(1.18); border-color: var(--c-accent);
}

/* Shape swatches (visual grid instead of dropdowns) */
.gbq-shape-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; }
.gbq-shape-opt {
  display: flex; flex-direction: column; align-items: center; gap: 5px;
  padding: 10px 6px 8px; border: 1.5px solid var(--c-border);
  border-radius: var(--radius-xs); cursor: pointer;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
  background: var(--c-white);
}
.gbq-shape-opt:hover { border-color: var(--c-accent); background: var(--c-accent-bg); }
.gbq-shape-opt--active { border-color: var(--c-accent); background: var(--c-accent-bg); }
.gbq-shape-preview {
  width: 36px; height: 36px; background: var(--c-text);
  transition: background var(--t) var(--ease);
}
.gbq-shape-opt--active .gbq-shape-preview { background: var(--c-accent); }
.gbq-shape-preview--dots    { border-radius: 50%; }
.gbq-shape-preview--rounded { border-radius: 35%; }
.gbq-shape-preview--classy  { border-radius: 0 35% 0 35%; }
.gbq-shape-preview--square  { border-radius: 0; }
.gbq-shape-preview--extra   { border-radius: 50%; width: 28px; height: 28px; margin: 4px; }
.gbq-shape-opt span { font-size: 10.5px; font-weight: 600; color: var(--c-text-2); }
.gbq-shape-opt--active span { color: var(--c-accent); }

/* Sliders */
.gbq-slider-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.gbq-slider-field { display: flex; flex-direction: column; gap: 6px; }
.gbq-slider-head { display: flex; justify-content: space-between; align-items: baseline; }
.gbq-slider-val { font-size: 12px; font-weight: 700; color: var(--c-accent); }
.gbq-range {
  width: 100%; height: 4px; border-radius: 4px;
  appearance: none; -webkit-appearance: none; outline: none; cursor: pointer;
  background: linear-gradient(to right, var(--c-accent) 0%, var(--c-border) 0%);
}
.gbq-range::-webkit-slider-thumb {
  -webkit-appearance: none; width: 17px; height: 17px; border-radius: 50%;
  background: var(--c-white); border: 2px solid var(--c-accent);
  box-shadow: 0 1px 4px rgba(79,70,229,.3);
  transition: transform var(--t) var(--ease);
}
.gbq-range::-webkit-slider-thumb:hover { transform: scale(1.2); }
.gbq-range::-moz-range-thumb {
  width: 17px; height: 17px; border-radius: 50%;
  background: var(--c-white); border: 2px solid var(--c-accent);
  box-shadow: 0 1px 4px rgba(79,70,229,.3);
}

/* Logo upload */
.gbq-upload-btn {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 14px; border: 1.5px dashed var(--c-border-2);
  border-radius: var(--radius-xs); cursor: pointer;
  font-size: 13px; font-weight: 500; color: var(--c-text-2);
  background: var(--c-white); transition: border-color var(--t), color var(--t);
}
.gbq-upload-btn:hover { border-color: var(--c-accent); color: var(--c-accent); }
.gbq-upload-btn input { display: none; }
.gbq-upload-icon { font-size: 18px; }

/* ════════════════════════════════════════════════════════════════
   RIGHT: Preview panel
   ════════════════════════════════════════════════════════════════ */
.gbq-preview-col {
  background: var(--c-bg);
  padding: 28px 24px 24px;
  display: flex; flex-direction: column;
  align-items: center; gap: 20px;
  position: sticky; top: 0;
}

.gbq-preview-card {
  background: var(--c-white);
  border-radius: 18px;
  padding: 28px;
  box-shadow: var(--c-shadow-lg);
  display: flex; flex-direction: column;
  align-items: center; gap: 16px;
  width: 100%; max-width: 300px;
}

.gbq-canvas-mount { line-height: 0; }
.gbq-canvas-mount canvas,
.gbq-canvas-mount svg { display: block; max-width: 100%; height: auto !important; border-radius: 8px; }

.gbq-preview-label {
  font-size: 12px; font-weight: 600; color: var(--c-text-3);
  text-align: center; line-height: 1.4; max-width: 220px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* Download buttons */
.gbq-dl-group { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; width: 100%; }
.gbq-dl-btn {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 12px; border-radius: var(--radius-xs);
  font-size: 13px; font-weight: 600; font-family: inherit;
  cursor: pointer; border: 1.5px solid var(--c-border);
  background: var(--c-white); color: var(--c-text);
  transition: border-color var(--t), background var(--t), color var(--t), transform var(--t);
}
.gbq-dl-btn:hover { border-color: var(--c-accent); color: var(--c-accent); background: var(--c-accent-bg); transform: translateY(-1px); }
.gbq-dl-btn:active { transform: scale(.97); }
.gbq-dl-btn--primary {
  background: var(--c-accent); color: #fff; border-color: var(--c-accent);
  grid-column: span 2;
}
.gbq-dl-btn--primary:hover { background: var(--c-accent-h); border-color: var(--c-accent-h); color: #fff; }

/* Utility row (copy, undo, redo, reset) */
.gbq-util-row { display: flex; gap: 7px; width: 100%; }
.gbq-util-btn {
  flex: 1; padding: 7px 8px; border-radius: var(--radius-xs);
  font-size: 12px; font-weight: 600; font-family: inherit;
  cursor: pointer; border: 1.5px solid var(--c-border);
  background: var(--c-white); color: var(--c-text-2);
  transition: border-color var(--t), color var(--t), transform var(--t);
  text-align: center;
}
.gbq-util-btn:hover { border-color: var(--c-accent); color: var(--c-accent); transform: translateY(-1px); }
.gbq-util-btn:active { transform: scale(.97); }
.gbq-util-btn--danger:hover { border-color: var(--c-danger); color: var(--c-danger); }

/* Privacy badge */
.gbq-privacy-badge {
  display: flex; align-items: center; gap: 6px;
  font-size: 11px; color: var(--c-text-3); font-weight: 500;
}

/* Presets section inside preview col */
.gbq-presets-wrap { width: 100%; }
.gbq-presets-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.gbq-presets-title { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .6px; color: var(--c-text-3); }
.gbq-preset-save { display: flex; gap: 7px; margin-bottom: 10px; }
.gbq-preset-input { flex: 1; padding: 8px 11px; border: 1.5px solid var(--c-border); border-radius: var(--radius-xs); font-size: 12.5px; font-family: inherit; outline: none; color: var(--c-text); }
.gbq-preset-input:focus { border-color: var(--c-accent); }
.gbq-preset-save-btn { padding: 8px 14px; background: var(--c-accent); color: #fff; border: none; border-radius: var(--radius-xs); font-size: 12.5px; font-weight: 600; cursor: pointer; font-family: inherit; }
.gbq-preset-save-btn:hover { background: var(--c-accent-h); }
.gbq-presets-list { display: flex; flex-direction: column; gap: 6px; max-height: 180px; overflow-y: auto; }
.gbq-preset-item { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border: 1.5px solid var(--c-border); border-radius: var(--radius-xs); background: var(--c-white); }
.gbq-preset-item:hover { border-color: var(--c-accent); }
.gbq-preset-item-name { flex: 1; font-size: 12.5px; font-weight: 600; color: var(--c-text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gbq-preset-item-btns { display: flex; gap: 5px; flex-shrink: 0; }
.gbq-preset-mini-btn { padding: 3px 9px; border-radius: 5px; font-size: 11px; font-weight: 600; cursor: pointer; border: 1.5px solid var(--c-border); background: var(--c-white); color: var(--c-text-2); font-family: inherit; }
.gbq-preset-mini-btn:hover { border-color: var(--c-accent); color: var(--c-accent); }
.gbq-preset-mini-btn--del:hover { border-color: var(--c-danger); color: var(--c-danger); }
.gbq-empty { font-size: 12.5px; color: var(--c-text-3); text-align: center; padding: 14px 0; }

/* ── Toast ───────────────────────────────────────────────────── */
.gbq-toast {
  position: fixed; bottom: 24px; right: 24px; z-index: 9999;
  padding: 11px 18px; border-radius: 10px;
  font-size: 13px; font-weight: 600; font-family: inherit;
  background: #1f2937; color: #fff;
  box-shadow: 0 4px 20px rgba(0,0,0,.22);
  opacity: 0; transform: translateY(10px);
  transition: opacity .22s ease, transform .22s ease;
  pointer-events: none;
}
.gbq-toast--show { opacity: 1; transform: translateY(0); }
.gbq-toast--err { background: var(--c-danger); }
.gbq-toast--ok  { background: var(--c-success); }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 919px) {
  .gbq-wrap { grid-template-columns: 1fr; }
  .gbq-preview-col { position: static; border-top: 1px solid var(--c-border); }
  .gbq-preview-card { max-width: 260px; }
  .gbq-step-label { display: none; }
  .gbq-type-grid { grid-template-columns: repeat(auto-fill, minmax(80px,1fr)); }
  .gbq-field-row { grid-template-columns: 1fr; }
  .gbq-slider-row { grid-template-columns: 1fr; }
}