/* QR Generator Premium Styles */

.qr-container {
  padding: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.qr-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 350px;
  gap: 30px;
}

@media (max-width: 1400px) and (min-width: 1201px) {
  .qr-layout {
    zoom: 0.9;
  }
}

@media (max-width: 1200px) {
  .qr-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* Tabs */
.qr-tabs-wrapper {
  overflow-x: auto;
  margin-bottom: 24px;
  scrollbar-width: none;
}
.qr-tabs-wrapper::-webkit-scrollbar {
  display: none;
}
.qr-tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 4px;
  border-radius: 12px;
  min-width: max-content;
  box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}

.qr-tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 8px 12px;
  font-size: 12.5px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  white-space: nowrap;
}

.qr-tab:hover {
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.qr-tab.active {
  background: linear-gradient(135deg, #6366f1, #ec4899);
  color: white;
  box-shadow: 0 4px 15px rgba(236, 72, 153, 0.4);
}

/* Sections */
.control-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-top: 3px solid #6366f1;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 24px;
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.05);
}
.control-section:nth-child(even) {
  border-top-color: #ec4899;
}
.section-title {
  font-size: 15px;
  color: var(--text-primary);
  margin-bottom: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-title i {
  color: #6366f1;
  font-size: 18px;
  background: linear-gradient(135deg, #6366f1, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Inputs */
.qr-input-group label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
}

.styled-input, .styled-textarea, .styled-select {
  width: 100%;
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 12px 14px;
  font-size: 15px;
  border-radius: 10px;
  outline: none;
  transition: all 0.2s;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
}

.styled-textarea {
  min-height: 120px;
  resize: vertical;
}

.styled-select {
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a1a1aa' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 14px;
}

.styled-input:focus, .styled-textarea:focus, .styled-select:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
  background: var(--bg-card-hover);
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

/* Design Grid */
.design-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.design-group label {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.color-input-wrapper {
  display: flex;
  align-items: center;
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 6px 10px;
  gap: 10px;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
}
.color-input-wrapper input[type="color"] {
  appearance: none;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  background: transparent;
  padding: 0;
}
.color-input-wrapper input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.color-input-wrapper input[type="color"]::-webkit-color-swatch { border: none; border-radius: 4px; }
.color-input-wrapper span { font-size: 13px; color: var(--text-primary); font-family: monospace; }

/* Buttons */
.btn-secondary {
  background: var(--bg-main);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.btn-secondary:hover { background: var(--bg-card-hover); border-color: var(--accent-primary); color: var(--accent-primary); }
.btn-secondary:disabled { opacity: 0.5; cursor: not-allowed; border-color: var(--border-color); color: var(--text-secondary); }

/* Preview Side */
.qr-preview-side {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(236, 72, 153, 0.08));
  border: 1px solid rgba(236, 72, 153, 0.15);
  border-radius: 16px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  box-shadow: inset 0 0 40px rgba(255,255,255,0.5);
}

.preview-card {
  width: 100%;
  max-width: 350px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.qr-canvas-container {
  background: white;
  padding: 20px;
  border-radius: 16px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  aspect-ratio: 1/1;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}

/* El qr-code-styling inyecta un SVG o Canvas */
.qr-canvas-container svg, .qr-canvas-container canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.placeholder-qr {
  text-align: center;
  color: #9CA3AF;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.placeholder-qr i { font-size: 64px; opacity: 0.5; }
.placeholder-qr p { font-size: 14px; max-width: 80%; }

.download-section { width: 100%; }
.download-section label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  text-align: center;
}
.size-options {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}
.size-btn {
  flex: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-secondary);
  padding: 8px 0;
  font-size: 13px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
}
.size-btn:hover { background: rgba(255,255,255,0.1); color: var(--text-primary); }
.size-btn.active {
  background: rgba(16, 185, 129, 0.2);
  border-color: #10B981;
  color: #10B981;
}