/* ── TyagiHub QR Generator Design & Theme Tokens ── */
:root {
  --qr-accent:        #005B99;
  --qr-accent2:      #e8431a;
  --qr-green:        #10b981;
  --qr-card-bg:      var(--clr-surface, #161922);
  --qr-card-card:    var(--clr-surface-2, #1f2330);
  --qr-input-bg:     var(--clr-input-bg, #242938);
  --qr-input-text:   var(--clr-heading, #ffffff);
  --qr-input-border: var(--clr-border, rgba(255, 255, 255, 0.15));
  --qr-text:         var(--clr-text, #9ca3af);
  --qr-heading:      var(--clr-heading, #f3f4f6);
  --qr-border:       var(--clr-border, rgba(255, 255, 255, 0.12));
  --qr-radius:       20px;
  --qr-font:         var(--font-body, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif);
}

/* Light Mode Overrides */
html[data-theme="light"] :root,
body.light-theme :root,
[data-theme="light"] {
  --qr-card-bg:      #ffffff;
  --qr-card-card:    #f8fafc;
  --qr-input-bg:     #ffffff;
  --qr-input-text:   #0f172a;
  --qr-input-border: #cbd5e1;
  --qr-text:         #475569;
  --qr-heading:      #0f172a;
  --qr-border:       #e2e8f0;
}

/* Universal Reset Box Sizing for QR Components */
.qr-wrap,
.qr-wrap *,
.qr-wrap *:before,
.qr-wrap *:after {
  box-sizing: border-box;
}

/* ── Main Outer Wrapper ── */
.qr-wrap {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 1.5rem 1rem 4rem;
  font-family: var(--qr-font);
  color: var(--qr-text);
  overflow-x: hidden;
}

/* ── Hero Intro ── */
.qr-intro {
  text-align: center;
  margin-bottom: 2rem;
  width: 100%;
}
.qr-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 166, 35, 0.12);
  border: 1px solid rgba(245, 166, 35, 0.3);
  color: var(--qr-accent);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 100px;
  margin-bottom: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.qr-intro h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  color: var(--qr-heading);
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
  line-height: 1.2;
}
.qr-intro h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--qr-accent), var(--qr-accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.qr-intro p {
  color: var(--qr-text);
  font-size: 0.98rem;
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ── Main Card Container ── */
.qr-main-card {
  width: 100%;
  max-width: 100%;
  background: var(--qr-card-bg);
  border: 1px solid var(--qr-border);
  border-radius: var(--qr-radius);
  padding: 1.75rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}

/* ── Top Tabs Navigation Bar ── */
.qr-tabs-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  padding-bottom: 1rem;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--qr-border);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.qr-tabs-nav::-webkit-scrollbar {
  height: 4px;
}
.qr-tabs-nav::-webkit-scrollbar-thumb {
  background: rgba(245, 166, 35, 0.3);
  border-radius: 4px;
}
.qr-tab-btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 70px;
  flex-shrink: 0;
  padding: 10px 12px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 12px;
  color: var(--qr-text);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}
.qr-tab-btn svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.qr-tab-btn:hover {
  color: var(--qr-heading);
  background: rgba(245, 166, 35, 0.1);
}
.qr-tab-btn.active {
  background: var(--qr-accent);
  color: #111827;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(245, 166, 35, 0.3);
}

/* ── Workspace Grid ── */
.qr-workspace-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 2rem;
  align-items: start;
  width: 100%;
  max-width: 100%;
}

/* ── Left Column: Inputs & Style Block ── */
.qr-form-column {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.qr-form-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  width: 100%;
}
.qr-dynamic-heading {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--qr-heading);
  margin: 0;
}
.qr-privacy-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--qr-green);
  background: rgba(16, 185, 129, 0.12);
  padding: 4px 10px;
  border-radius: 100px;
  white-space: nowrap;
}

.qr-forms-container {
  width: 100%;
  max-width: 100%;
  min-height: 100px;
}
.qr-form {
  display: none;
  width: 100%;
  max-width: 100%;
}
.qr-form.active {
  display: block;
}

.qr-field-box {
  width: 100%;
  max-width: 100%;
}
.qr-field-box label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--qr-heading);
  margin-bottom: 8px;
}

/* Input Fields Style */
.qr-pill-input-wrap {
  position: relative;
  width: 100%;
  max-width: 100%;
}
.qr-pill-input {
  width: 100%;
  max-width: 100%;
  padding: 14px 20px;
  border-radius: 14px;
  border: 1px solid var(--qr-input-border);
  background: var(--qr-input-bg);
  color: var(--qr-input-text);
  font-size: 0.98rem;
  font-weight: 500;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}
.qr-pill-input:focus {
  border-color: var(--qr-accent);
  box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.2);
}
.qr-input-hint {
  font-size: 0.82rem;
  color: var(--qr-text);
  margin-top: 8px;
  word-break: break-word;
}

.qr-textarea {
  width: 100%;
  max-width: 100%;
  min-height: 100px;
  padding: 14px 18px;
  border-radius: 14px;
  border: 1px solid var(--qr-input-border);
  background: var(--qr-input-bg);
  color: var(--qr-input-text);
  font-size: 0.95rem;
  outline: none;
  resize: vertical;
  box-sizing: border-box;
}

.qr-input-row {
  display: flex;
  gap: 10px;
  width: 100%;
  max-width: 100%;
}
.qr-input-row .qr-pill-input,
.qr-input-row .qr-select {
  flex: 1;
  min-width: 0;
}
.qr-select {
  padding: 12px 18px;
  border-radius: 14px;
  border: 1px solid var(--qr-input-border);
  background: var(--qr-input-bg);
  color: var(--qr-input-text);
  font-size: 0.9rem;
  outline: none;
  cursor: pointer;
  max-width: 100%;
}

/* ── MULTI-COLOR STYLE BLOCK (Under Inputs) ── */
.qr-style-block {
  width: 100%;
  max-width: 100%;
  background: var(--qr-card-card);
  border: 1px solid var(--qr-border);
  border-radius: 16px;
  padding: 1.25rem;
}
.qr-style-block-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--qr-heading);
  margin-bottom: 1rem;
}
.qr-toggle-advanced {
  background: transparent;
  border: none;
  color: var(--qr-accent);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}
.qr-toggle-advanced:hover {
  text-decoration: underline;
}

.qr-color-presets-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  width: 100%;
  max-width: 100%;
}
.qr-preset-card {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--qr-card-bg);
  border: 1px solid var(--qr-border);
  border-radius: 100px;
  color: var(--qr-heading);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  max-width: 100%;
}
.qr-preset-card .preset-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.qr-preset-card:hover {
  border-color: var(--qr-accent);
}
.qr-preset-card.active {
  border-color: var(--qr-accent);
  background: rgba(245, 166, 35, 0.12);
  color: var(--qr-accent);
}

/* ── Right Column: Preview Stage ── */
.qr-preview-column {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.qr-stage-card {
  width: 100%;
  max-width: 100%;
  background: var(--qr-card-card);
  border: 1px solid var(--qr-border);
  border-radius: 18px;
  padding: 1.25rem;
  text-align: center;
  overflow: hidden;
}
.qr-stage-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--qr-heading);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Central Canvas Frame - Strict Responsive Bounds */
.qr-preview-card {
  position: relative;
  background: #ffffff;
  border-radius: 14px;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  width: 100%;
  max-width: 100%;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  overflow: hidden;
  margin: 0 auto;
  box-sizing: border-box;
}

/* CRITICAL FIX: Ensure Generated Canvas/Image Never Causes Mobile Overflow */
#qr-inner,
#qr-inner canvas,
#qr-inner img,
.qr-preview-card canvas,
.qr-preview-card img {
  max-width: 100% !important;
  height: auto !important;
  display: block;
  margin: 0 auto;
  box-sizing: border-box !important;
}

.qr-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: #94a3b8;
  text-align: center;
  font-size: 0.82rem;
  max-width: 100%;
}
.qr-placeholder svg {
  width: 48px;
  height: 48px;
  stroke: #cbd5e1;
  fill: none;
  stroke-width: 1.5;
}
.qr-logo-overlay {
  position: absolute;
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  padding: 3px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  display: none;
}

/* Actions Toolbar */
.qr-action-toolbar {
  display: flex;
  gap: 10px;
  width: 100%;
  max-width: 100%;
}
.qr-main-save-btn {
  flex: 1;
  min-width: 0;
  padding: 12px 18px;
  background: var(--qr-accent);
  color: #111827;
  font-size: 0.92rem;
  font-weight: 700;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.1s, opacity 0.2s;
  white-space: nowrap;
}
.qr-main-save-btn:not(:disabled):hover {
  opacity: 0.9;
}
.qr-main-save-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.qr-icon-action-btn {
  padding: 12px 16px;
  background: var(--qr-card-card);
  border: 1px solid var(--qr-border);
  color: var(--qr-heading);
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: 12px;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
}
.qr-icon-action-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Export Format Row */
.qr-export-format-row {
  display: flex;
  gap: 8px;
  width: 100%;
  max-width: 100%;
}
.qr-fmt-chip {
  flex: 1;
  min-width: 0;
  padding: 8px 4px;
  background: var(--qr-card-card);
  border: 1px solid var(--qr-border);
  color: var(--qr-heading);
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
}
.qr-fmt-chip:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Custom Color & Options Drawer ── */
.qr-custom-drawer {
  display: none;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--qr-border);
  width: 100%;
  max-width: 100%;
}
.qr-custom-drawer.open {
  display: block;
  animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.qr-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  width: 100%;
}
.qr-drawer-header h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--qr-heading);
  margin: 0;
}
.qr-drawer-close {
  background: transparent;
  border: none;
  color: var(--qr-text);
  font-size: 1.2rem;
  cursor: pointer;
}

.qr-drawer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  width: 100%;
  max-width: 100%;
}
.qr-drawer-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--qr-text);
  margin-bottom: 0.5rem;
}

.qr-color-pickers-wrap {
  display: flex;
  gap: 12px;
  width: 100%;
}
.qr-picker-box {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.78rem;
  color: var(--qr-text);
}
.qr-picker-box input[type="color"] {
  width: 44px;
  height: 32px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  background: transparent;
}

/* Error Correction Buttons */
.qr-ec-row {
  display: flex;
  gap: 6px;
  width: 100%;
}
.qr-ec-btn {
  flex: 1;
  padding: 6px 8px;
  background: var(--qr-card-card);
  border: 1px solid var(--qr-border);
  color: var(--qr-heading);
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: 8px;
  cursor: pointer;
  text-align: center;
}
.qr-ec-btn.active {
  background: var(--qr-accent);
  color: #111827;
  border-color: var(--qr-accent);
}

.qr-logo-upload-box {
  position: relative;
  padding: 10px;
  border: 1px dashed var(--qr-border);
  border-radius: 8px;
  text-align: center;
  color: var(--qr-text);
  font-size: 0.8rem;
  cursor: pointer;
  width: 100%;
}
.qr-logo-upload-box input {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* ── Content Sections & 12 Cards ── */
.qr-section {
  margin-top: 3.5rem;
  width: 100%;
  max-width: 100%;
}
.qr-section-header {
  text-align: center;
  margin-bottom: 2rem;
  width: 100%;
}
.qr-section-header h2 {
  font-size: clamp(1.4rem, 3.5vw, 1.75rem);
  font-weight: 800;
  color: var(--qr-heading);
  margin-bottom: 0.5rem;
}
.qr-section-header p {
  color: var(--qr-text);
  font-size: 0.95rem;
}

.qr-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  width: 100%;
  max-width: 100%;
}
.qr-info-card {
  background: var(--qr-card-bg);
  border: 1px solid var(--qr-border);
  border-radius: 16px;
  padding: 1.25rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
  width: 100%;
  max-width: 100%;
}
.qr-info-card:hover {
  transform: translateY(-2px);
  border-color: var(--qr-accent);
}
.qr-info-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 0.5rem;
}
.qr-info-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
}
.qr-info-card h3 {
  margin: 0;
  font-size: 1rem;
  color: var(--qr-heading);
}
.qr-info-card p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--qr-text);
  line-height: 1.5;
}

.qr-steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  width: 100%;
  max-width: 100%;
}
.qr-step-card {
  background: var(--qr-card-bg);
  border: 1px solid var(--qr-border);
  border-radius: 16px;
  padding: 1.5rem;
  width: 100%;
  max-width: 100%;
}
.qr-step-num {
  width: 36px;
  height: 36px;
  background: rgba(245, 166, 35, 0.15);
  color: var(--qr-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin-bottom: 1rem;
}
.qr-step-card h3 {
  font-size: 1.1rem;
  color: var(--qr-heading);
  margin-bottom: 0.5rem;
}
.qr-step-card p {
  font-size: 0.88rem;
  color: var(--qr-text);
  line-height: 1.5;
  margin: 0;
}

/* ── FAQ Accordion ── */
.qr-faq-container {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.qr-faq-item {
  background: var(--qr-card-bg);
  border: 1px solid var(--qr-border);
  border-radius: 14px;
  overflow: hidden;
  width: 100%;
}
.qr-faq-header {
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  gap: 10px;
}
.qr-faq-header h3 {
  margin: 0;
  font-size: 0.95rem;
  color: var(--qr-heading);
}
.qr-faq-icon {
  font-size: 0.75rem;
  color: var(--qr-text);
  transition: transform 0.3s;
  flex-shrink: 0;
}
.qr-faq-item.active .qr-faq-icon {
  transform: rotate(180deg);
}
.qr-faq-body {
  display: none;
  padding: 0 1.25rem 1rem;
  color: var(--qr-text);
  font-size: 0.88rem;
  line-height: 1.6;
}
.qr-faq-item.active .qr-faq-body {
  display: block;
}

/* ── Toast Notification ── */
.qr-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #111827;
  border: 1px solid rgba(255,255,255,0.2);
  color: #ffffff;
  padding: 12px 20px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 9999;
  max-width: 90vw;
  text-align: center;
  word-break: break-word;
}
.qr-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ── STRICT MOBILE RESPONSIVE OVERRIDES ── */
@media (max-width: 900px) {
  .qr-workspace-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .qr-preview-column {
    order: -1;
  }
}

@media (max-width: 600px) {
  .qr-wrap {
    padding: 0.75rem 0.5rem 2.5rem;
  }
  .qr-main-card {
    padding: 0.85rem;
    border-radius: 14px;
  }
  .qr-intro h1 {
    font-size: 1.65rem;
  }
  .qr-intro p {
    font-size: 0.88rem;
  }
  .qr-input-row {
    flex-direction: column;
    gap: 8px;
  }
  .qr-stage-card {
    padding: 0.75rem;
  }
  .qr-preview-card {
    padding: 12px;
    min-height: 190px;
  }
  .qr-cards-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .qr-steps-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .qr-action-toolbar {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .qr-fmt-chip {
    font-size: 0.72rem;
    padding: 6px 2px;
  }
}