/* =============================================================================
   QR GENERATOR — tool.css
   Desktop-first. Single @media block for mobile (≤850px). Zero !important abuse.
   ============================================================================= */

/* ── GLOBAL BOX-SIZING ──────────────────────────────────────────────────── */
*,*::before,*::after { box-sizing: border-box !important; }

/* Inputs fill parent; buttons size to content (never inherit width:100%) */
input, textarea, select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box !important;
}

/* ── TOOL CARD — desktop 2-column grid ──────────────────────────────────── */
.qr-tool {
  display: grid;
  grid-template-columns: minmax(420px, 1.5fr) minmax(280px, 1fr);
  align-items: start;
  gap: 1.5rem;
  width: 100%;
  max-width: 880px;
  height: auto;
  max-height: none;
  overflow: visible;
  padding: var(--space-3);
  padding-bottom: 3rem;
  margin-bottom: 7rem;
  text-align: left;
}

/* ── LEFT COLUMN: input area ────────────────────────────────────────────── */
.qr-input-area {
  display: block;
  width: 100%;
  min-width: 0;
  height: auto;
  max-height: none;
  /* overflow:hidden clips any stray horizontal bleed from the tab scroll
     strip without affecting vertical growth of the form below it */
  overflow: visible;
}

/* ── TAB ROW ────────────────────────────────────────────────────────────── */
/* Horizontal-scroll strip: tabs never wrap, never shrink, page is never
   blocked from vertical scrolling. overflow-y:hidden stops the strip itself
   from creating a vertical gap while still allowing horizontal swipe. */
.qr-tabs {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.5rem;
  margin-bottom: 1rem;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow-x: clip;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0.25rem;
  box-sizing: border-box;
}
.qr-tabs::-webkit-scrollbar {
  display: none !important;
  width: 0 !important;
  height: 0 !important;
}

.qr-tab {
  /* !important on every anti-shrink rule — Safari ignores these without it
     inside overflow:auto flex containers */
  flex: 0 0 auto !important;
  flex-shrink: 0 !important;
  min-width: max-content !important;
  max-width: none !important;
  white-space: nowrap !important;
  overflow: visible !important;
  text-overflow: unset !important;

  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text-secondary);
  background: var(--glass-bg-pill);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  transition: color .15s, background .15s, border-color .15s;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  width: auto;
}
/* Enforce on any child elements — Safari clips text inside <button> children */
.qr-tab * {
  white-space: nowrap !important;
  flex-shrink: 0 !important;
  text-overflow: unset !important;
}
/* Last tab gets extra right margin so it clears the card edge on scroll */
.qr-tab:last-child {
  margin-right: 1.25rem;
}
.qr-tab:hover { color: var(--text-primary); background: var(--glass-bg); }
.qr-tab[aria-selected="true"] {
  color: #0a0a10;
  background: var(--text-primary);
  border-color: var(--text-primary);
  box-shadow: 0 1px 8px rgba(255,255,255,.12);
}

/* ── FORM FIELDS ─────────────────────────────────────────────────────────── */
.qr-field {
  display: block;
  width: 100%;
  margin-bottom: var(--space-2);
}
.qr-field label {
  display: block;
  font-size: 0.93rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}
.qr-field input,
.qr-field textarea,
.qr-field select {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-primary);
  background: rgba(255,255,255,.06);
  border: 0.5px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 0.65em 0.85em;
  box-sizing: border-box !important;
  -webkit-appearance: none;
  appearance: none;
}
.qr-field input::placeholder,
.qr-field textarea::placeholder { color: var(--text-muted); }
.qr-field textarea {
  resize: vertical;
  min-height: 80px;
}

.qr-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}
.qr-hint { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.3rem; }

/* ── CUSTOMISE ───────────────────────────────────────────────────────────── */
.qr-customize {
  margin-top: var(--space-2);
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-2);
}
.qr-customize summary {
  list-style: none;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.4em;
}
.qr-customize summary::-webkit-details-marker { display: none; }
.qr-customize summary::before { content: "⚙"; font-size: 0.85rem; }
.qr-customize-body {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.qr-color-field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.qr-color-field input[type="color"] {
  width: 36px !important;
  max-width: 36px !important;
  height: 28px;
  border: 0.5px solid var(--glass-border);
  border-radius: 6px;
  background: none;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
}

/* ── RIGHT COLUMN: QR preview + download ────────────────────────────────── */
.qr-preview-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-2);
  text-align: center;
  height: auto;
  max-height: none;
  overflow: visible;
  align-self: start;
}

.qr-canvas-shell {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 12px;
  width: min(100%, 220px);
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
#qr-canvas-target {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
#qr-canvas-target img,
#qr-canvas-target canvas {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  image-rendering: pixelated;
}
.qr-empty-state {
  width: 100%;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: #999;
  text-align: center;
  padding: 1rem;
}

.qr-actions {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.qr-status {
  font-size: 0.88rem;
  color: var(--text-secondary);
  min-height: 1.2em;
}

/* =============================================================================
   MOBILE — all overrides inside a single @media block (≤850px)
   ============================================================================= */
@media (max-width: 850px) {

  /* Single-column block flow; page scrolls naturally */
  .qr-tool {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
    padding: var(--space-2) !important;
    padding-bottom: 3rem !important;
    margin-bottom: 5rem !important;
    grid-template-columns: none !important;
    gap: 0 !important;
  }

  /* Full-width inputs */
  .qr-field input,
  .qr-field textarea,
  .qr-field select {
    width: 100% !important;
    max-width: 100% !important;
  }

  /* Tab strip: full mobile enforcement — !important ensures Safari/Opera obey */
  .qr-tabs {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    overflow-x: clip !important;
    overflow-y: hidden !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-right: 0 !important;
    gap: 0.5rem;
    scrollbar-width: none;
  }

  /* Field rows: single column */
  .qr-field-row { grid-template-columns: 1fr; }

  /* Customize: single column */
  .qr-customize-body { grid-template-columns: 1fr; }

  /* Preview: block below inputs with divider */
  .qr-preview-panel {
    display: block !important;
    width: 100% !important;
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
    margin-top: var(--space-3) !important;
    padding-top: var(--space-2) !important;
    padding-bottom: var(--space-2) !important;
    border-top: 1px solid var(--border-subtle);
    text-align: center;
    align-self: auto;
  }

  .qr-canvas-shell {
    width: min(100%, 180px);
    margin: 0 auto;
  }

  .qr-actions {
    display: block;
    width: 100%;
  }
  .qr-actions .u-btn {
    display: block;
    width: 100%;
    margin-bottom: 0.5rem;
  }
}

@media (max-width: 520px) {
  /* Opera narrow viewport: tabs wrap, Contact stays visible */
  .qr-tabs {
    flex-wrap: wrap !important;
    justify-content: center !important;
    overflow-x: visible !important;
    gap: 8px !important;
    padding-right: 0 !important;
  }
  .qr-tab {
    flex: 0 0 auto !important;
    font-size: 0.84rem;
    padding: 0.42rem 0.75rem;
  }
}
@media (max-width: 480px) {
  /* Ultra-narrow: allow tabs to wrap to a second row rather than scroll */
  .qr-tabs {
    flex-wrap: wrap !important;
    justify-content: center !important;
    overflow-x: visible !important;
    gap: 8px !important;
    padding-right: 0 !important;
  }
  .qr-tab {
    flex: 0 0 auto !important;
    font-size: 0.82rem;
    padding: 0.4rem 0.7rem;
  }
}
@media (max-width: 380px) {
  .qr-tab { font-size: 0.8rem; padding: 0.45rem 0.7rem; }
}

/* ==========================================
   FORCE OVERRIDE: TABS, MOBILE SCROLL & BOTTOM PADDING
   ========================================== */
/* 1. Force container to be a horizontal scroll-row.
   flex-wrap is NOT set here — media queries below control wrap at narrow widths.
   At ≤520px the 520px rule sets flex-wrap:wrap so Contact moves to second row.
   At wider widths the base .qr-tabs rule controls wrap (nowrap + overflow-x:auto). */
.qr-tabs {
  display: flex !important;
  flex-direction: row !important;
  /* flex-wrap intentionally omitted — controlled by breakpoint rules */
  align-items: center !important;
  justify-content: flex-start !important;
  width: 100% !important;
  max-width: 100% !important;
  overflow-x: clip !important;
  overflow-y: hidden !important;
  box-sizing: border-box !important;
  gap: 0.5rem !important;
  scrollbar-width: none !important;
}
.qr-tabs::-webkit-scrollbar {
  display: none !important;
  width: 0 !important;
  height: 0 !important;
}
/* 2. Kill all text truncation on ALL browsers */
.qr-tabs .qr-tab,
.qr-tabs .qr-tab * {
  white-space: nowrap !important;
  text-overflow: clip !important;
  flex: 0 0 auto !important;
  flex-shrink: 0 !important;
  width: auto !important;
  min-width: max-content !important;
  max-width: none !important;
}
/* 3. Right margin on last tab to prevent Mobile Opera/Safari cutoff */
.qr-tabs .qr-tab:last-child {
  margin-right: 2.5rem !important;
}
/* 4. Desktop Grid Layout Expansion */
@media (min-width: 851px) {
  .qr-tool {
    grid-template-columns: minmax(460px, 1.5fr) minmax(280px, 1fr) !important;
    gap: 2rem !important;
  }
}
/* 5. Page clearance for expanded Customize & Cookie Banner */
body {
  padding-bottom: 12rem !important;
}
.qr-tool,
.u-glass-card {
  height: auto !important;
  max-height: none !important;
  overflow: visible !important;
}

/* ── SVG download button + logo upload row ── */
.qr-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
#qr-download-svg-btn {
  font-size: 0.85rem;
}
.qr-logo-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--glass-border);
  flex-wrap: wrap;
}
.qr-logo-label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  background: var(--glass-bg-pill);
  transition: background 0.15s;
  white-space: nowrap;
}
.qr-logo-label:hover {
  background: var(--glass-bg);
  color: var(--text-secondary);
}