@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --primary: #2D64F2;
  --primary-hover: #1e52db;
  --primary-light: rgba(45, 100, 242, 0.1);
  --secondary: #3C17DE;
  --secondary-hover: #3211be;
  --accent: #14BCF5;
  --accent-light: rgba(20, 188, 245, 0.12);
  --bg: #F5F1F8;
  --card-bg: #FFFFFF;
  --text: #1A2826;
  --text-muted: #5A6A67;
  --border: #E2DDF0;
  --border-focus: #2D64F2;
  --danger: #EF4444;
  --success: #10B981;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 6px rgba(26, 40, 38, 0.04);
  --shadow-md: 0 8px 24px rgba(60, 23, 222, 0.08);
  --shadow-lg: 0 16px 40px rgba(60, 23, 222, 0.12);
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* Container Principal */
.app-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

/* Header */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

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

.brand-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 8px 18px rgba(45, 100, 242, 0.35);
}

.brand-title h1 {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge-tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  background: var(--accent-light);
  color: #0b80a7;
  border-radius: 20px;
}

.brand-title p {
  font-size: 13px;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* Layout 2 Colunas */
.main-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 32px;
  align-items: start;
}

/* Coluna de Configuração */
.config-column {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Card Genérico */
.card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.title-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

/* Tabs de Conteúdo */
.content-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  background: var(--bg);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn:hover {
  background: #eae5f1;
  color: var(--text);
}

.tab-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(45, 100, 242, 0.3);
}

.tab-btn svg {
  width: 16px;
  height: 16px;
}

/* Formulários */
.tab-content {
  display: none;
  animation: fadeIn 0.25s ease-in-out;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-label .helper {
  font-size: 11px;
  font-weight: normal;
  color: var(--text-muted);
}

.input-field,
.select-field,
.textarea-field {
  width: 100%;
  padding: 11px 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: #FAFAFD;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: var(--transition);
}

.input-field:focus,
.select-field:focus,
.textarea-field:focus {
  background: #FFFFFF;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.textarea-field {
  resize: vertical;
  min-height: 90px;
}

/* Radio buttons / Pill groups */
.pill-options {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pill-option {
  flex: 1;
  min-width: 90px;
  position: relative;
}

.pill-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.pill-option label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  background: #FAFAFD;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.pill-option input[type="radio"]:checked + label {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
}

/* Accordion de Customização */
.customization-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--card-bg);
}

.accordion-header {
  width: 100%;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  font-family: inherit;
  transition: var(--transition);
}

.accordion-header:hover {
  background: #FAF8FD;
}

.accordion-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.accordion-icon-arrow {
  transition: transform 0.2s ease;
  color: var(--text-muted);
}

.accordion-item.open .accordion-icon-arrow {
  transform: rotate(180deg);
}

.accordion-body {
  padding: 0 20px 20px;
  display: none;
}

.accordion-item.open .accordion-body {
  display: block;
}

/* Cores e Gradientes */
.color-picker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.color-picker-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.color-input-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: #FAFAFD;
}

.color-input-wrapper input[type="color"] {
  -webkit-appearance: none;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  background: none;
}

.color-input-wrapper input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-input-wrapper input[type="color"]::-webkit-color-swatch {
  border: 1px solid rgba(0,0,0,0.15);
  border-radius: 6px;
}

.color-hex {
  font-size: 13px;
  font-family: monospace;
  font-weight: 600;
  color: var(--text);
}

/* Paleta de Cores Rápida */
.preset-palette {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.preset-color-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid #FFFFFF;
  box-shadow: 0 0 0 1px var(--border);
  transition: var(--transition);
}

.preset-color-dot:hover {
  transform: scale(1.15);
  box-shadow: 0 0 0 2px var(--primary);
}

/* Grade de Formas (Dots / Corners) */
.shape-selector-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(105px, 1fr));
  gap: 10px;
}

.shape-card {
  position: relative;
}

.shape-card input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.shape-card label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 12px 8px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  background: #FAFAFD;
  cursor: pointer;
  transition: var(--transition);
}

.shape-card input[type="radio"]:checked + label {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 700;
}

.shape-preview-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.shape-card span {
  font-size: 11px;
  font-weight: 600;
  text-align: center;
}

/* Logos & Presets */
.logo-presets-grid {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.logo-preset-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: #FAFAFD;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
}

.logo-preset-btn:hover {
  border-color: var(--accent);
  background: var(--accent-light);
}

.logo-preset-btn.active {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
}

.logo-preset-btn svg {
  width: 18px;
  height: 18px;
}

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
  text-align: center;
  background: #FAFAFD;
  cursor: pointer;
  transition: var(--transition);
}

.upload-zone:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.upload-zone input {
  display: none;
}

/* Sliders */
.slider-group {
  margin-top: 14px;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.slider-input {
  width: 100%;
  accent-color: var(--primary);
  cursor: pointer;
}

/* Molduras */
.frames-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

.frame-card {
  position: relative;
}

.frame-card input[type="radio"] {
  position: absolute;
  opacity: 0;
}

.frame-card label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 12px 8px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: #FAFAFD;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition);
  text-align: center;
  min-height: 60px;
}

.frame-card input[type="radio"]:checked + label {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
}

/* Coluna de Preview (Sticky) */
.preview-column {
  position: sticky;
  top: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.preview-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.preview-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.preview-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.type-pill {
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  background: var(--primary-light);
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Moldura Container Canvas */
.qr-frame-wrapper {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 30px rgba(0,0,0,0.06);
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  max-width: 100%;
}

.frame-top-banner,
.frame-bottom-banner {
  display: none;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 8px 16px;
  width: 100%;
  text-align: center;
  border-radius: var(--radius-sm);
}

.frame-top-banner {
  margin-bottom: 12px;
}

.frame-bottom-banner {
  margin-top: 12px;
}

.qr-canvas-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 260px;
  min-width: 260px;
}

.qr-canvas-container svg,
.qr-canvas-container canvas {
  max-width: 100%;
  height: auto !important;
  display: block;
}

/* Info do Preview */
.preview-info {
  margin-top: 16px;
  font-size: 12px;
  color: var(--text-muted);
  max-width: 320px;
  word-break: break-all;
}

/* Botões de Ação de Download */
.preview-actions {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-md);
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(45, 100, 242, 0.35);
  transition: var(--transition);
  font-family: inherit;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(45, 100, 242, 0.45);
}

.btn-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #FFFFFF;
  color: var(--primary);
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-secondary:hover {
  background: var(--primary-light);
}

.btn-accent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent-light);
  color: #088bb7;
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-accent:hover {
  background: var(--accent);
  color: #FFFFFF;
}

/* Botão especial Pix Copia e Cola */
.pix-copy-box {
  display: none;
  width: 100%;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
}

.btn-pix {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #0ea888;
  color: white;
  border: none;
  border-radius: var(--radius-md);
  padding: 11px 16px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.btn-pix:hover {
  background: #098b6f;
  box-shadow: 0 4px 12px rgba(14, 168, 136, 0.35);
}

/* Opções de Resolução de Download */
.resolution-select-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-top: 8px;
  padding: 8px 12px;
  background: #FAFAFD;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 12px;
  font-weight: 600;
}

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

.res-btn {
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: white;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  color: var(--text-muted);
}

.res-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* Histórico de QRs */
.history-section {
  margin-top: 24px;
}

.history-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.history-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.history-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.history-thumb {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  background: #F0EDF6;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.history-details {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.history-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-date {
  font-size: 10px;
  color: var(--text-muted);
}

/* Toast de Notificação */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  padding: 12px 20px;
  background: #1A2826;
  color: #FFFFFF;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.25);
  animation: slideInRight 0.3s ease;
  transition: opacity 0.3s ease;
}

.toast.success {
  border-left: 4px solid var(--accent);
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Modal Leitor / Scanner */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(26, 40, 38, 0.6);
  backdrop-filter: blur(4px);
  z-index: 999;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.active {
  display: flex;
}

.modal-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  max-width: 480px;
  width: 100%;
  padding: 24px;
  box-shadow: var(--shadow-lg);
  animation: modalScale 0.25s ease;
}

@keyframes modalScale {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.modal-header h3 {
  font-size: 17px;
  font-weight: 700;
}

.modal-close-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 20px;
}

/* Responsividade */
@media (max-width: 1024px) {
  .main-layout {
    grid-template-columns: 1fr;
  }

  .preview-column {
    position: static;
  }

  .preview-card {
    max-width: 480px;
    margin: 0 auto;
    width: 100%;
  }
}

@media (max-width: 640px) {
  .app-container {
    padding: 16px 12px 32px;
  }

  .app-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

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

  .form-group.full-width {
    grid-column: span 1;
  }

  .color-picker-grid {
    grid-template-columns: 1fr;
  }

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