:root {
  --bg: #0b0b14;
  --panel: #13131f;
  --panel-2: #1a1a2a;
  --panel-3: #23233a;
  --border: #2a2a3d;
  --border-hover: #3a3a52;
  --text: #e8e8f0;
  --muted: #8a8aa0;
  --muted-2: #6a6a85;
  --accent: #7c5cff;
  --accent-2: #4f8bff;
  --gradient: linear-gradient(135deg, #7c5cff 0%, #4f8bff 100%);
  --danger: #ff5c7c;
  --success: #4fcf7a;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 8px 24px rgba(124, 92, 255, 0.25);
  --bg-glow-1: rgba(124, 92, 255, 0.18);
  --bg-glow-2: rgba(79, 139, 255, 0.12);
}

[data-theme="light"] {
  --bg: #f4f5fa;
  --panel: #ffffff;
  --panel-2: #f5f5fa;
  --panel-3: #ebebf3;
  --border: #e1e1ec;
  --border-hover: #c9c9d8;
  --text: #15162b;
  --muted: #6b6b85;
  --muted-2: #9797ae;
  --shadow-lg: 0 20px 50px rgba(20, 20, 40, 0.12);
  --shadow-md: 0 8px 20px rgba(124, 92, 255, 0.2);
  --bg-glow-1: rgba(124, 92, 255, 0.12);
  --bg-glow-2: rgba(79, 139, 255, 0.08);
}

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

html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(ellipse 80% 50% at 20% 0%, var(--bg-glow-1), transparent 60%),
    radial-gradient(ellipse 60% 40% at 90% 100%, var(--bg-glow-2), transparent 60%);
  background-attachment: fixed;
  transition: background-color 0.3s, color 0.3s;
}

.app {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
  transition: background 0.2s;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0 28px;
  flex-wrap: wrap;
  gap: 16px;
}

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

.logo {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--gradient);
  display: grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: -0.5px;
  font-size: 14px;
  color: white;
  box-shadow: 0 8px 24px rgba(124, 92, 255, 0.3);
}

.brand h1 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

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

.topbar-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

/* Color palette */
.color-palette {
  display: flex;
  gap: 6px;
  padding: 6px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.color-swatch {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
  background: linear-gradient(135deg, var(--swatch-c1) 0%, var(--swatch-c2) 100%);
  transition: transform 0.15s, border-color 0.15s;
}
.color-swatch:hover { transform: scale(1.1); }
.color-swatch.active {
  border-color: var(--text);
  transform: scale(1.08);
}

.theme-btn {
  position: relative;
  width: 40px;
  height: 40px;
}
.theme-btn .icon-sun,
.theme-btn .icon-moon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: opacity 0.25s, transform 0.25s;
}
[data-theme="light"] .theme-btn .icon-sun { opacity: 1; transform: translate(-50%, -50%) rotate(0); }
[data-theme="light"] .theme-btn .icon-moon { opacity: 0; transform: translate(-50%, -50%) rotate(-90deg); }
:root:not([data-theme="light"]) .theme-btn .icon-sun { opacity: 0; transform: translate(-50%, -50%) rotate(90deg); }
:root:not([data-theme="light"]) .theme-btn .icon-moon { opacity: 1; transform: translate(-50%, -50%) rotate(0); }

/* Buttons */
.btn {
  padding: 10px 16px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  transition: transform 0.08s, opacity 0.2s, box-shadow 0.2s, background 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.btn:active:not(:disabled) { transform: scale(0.97); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-primary {
  background: var(--gradient);
  color: white;
  box-shadow: 0 8px 24px rgba(124, 92, 255, 0.25);
}
.btn-primary:hover:not(:disabled) {
  box-shadow: 0 12px 32px rgba(124, 92, 255, 0.4);
}

.btn-ghost {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover:not(:disabled) {
  border-color: var(--border-hover);
  background: var(--panel-3);
}

.btn-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  transition: all 0.2s;
}
.btn-icon:hover:not(:disabled) { background: var(--panel-3); border-color: var(--accent); }
.btn-icon:disabled { opacity: 0.3; cursor: not-allowed; }

.btn-link {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
  padding: 0;
}
.btn-link:hover { color: var(--accent); }

/* Layout */
.layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 20px;
}

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(10px);
}

.panel h2 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: -0.2px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Fields */
.field { margin-bottom: 16px; }

.field > label,
.zpl-editor label {
  display: block;
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-weight: 700;
  margin-bottom: 7px;
}

.field input[type="text"],
.field input[type="password"],
.field input[type="number"],
.field select,
.field textarea,
.zpl-editor textarea {
  width: 100%;
  padding: 11px 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
}

.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238a8aa0' stroke-width='2.5' 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 12px center;
  padding-right: 36px;
}

.field input:focus,
.field select:focus,
.field textarea:focus,
.zpl-editor textarea:focus {
  border-color: var(--accent);
  background: var(--panel-3);
}

.row { display: flex; align-items: center; gap: 10px; }
.row input { flex: 1; }
.row span { color: var(--muted); font-weight: 600; }

.hint {
  display: block;
  color: var(--muted-2);
  font-size: 11px;
  margin-top: 6px;
  line-height: 1.4;
}

/* Switch */
.switch {
  display: flex !important;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  text-transform: none !important;
  font-size: 14px !important;
  letter-spacing: 0 !important;
  color: var(--text) !important;
  font-weight: 500 !important;
  margin-bottom: 0 !important;
  user-select: none;
}

.switch input { display: none; }
.slider {
  width: 40px;
  height: 22px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  position: relative;
  transition: background 0.25s, border-color 0.25s;
  flex-shrink: 0;
}
.slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--muted);
  top: 2px;
  left: 2px;
  transition: transform 0.25s, background 0.25s;
}
.switch input:checked + .slider { background: var(--gradient); border-color: transparent; }
.switch input:checked + .slider::before { transform: translateX(18px); background: white; }

.col-spacing {
  padding: 12px;
  background: rgba(124, 92, 255, 0.06);
  border: 1px solid rgba(124, 92, 255, 0.2);
  border-radius: var(--radius-sm);
  margin-top: -6px;
  margin-bottom: 20px;
}

/* Details / API Settings */
.api-settings {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin: 20px 0;
}
.api-settings > summary {
  cursor: pointer;
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-weight: 700;
  padding: 4px 0 10px;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
}
.api-settings > summary::before {
  content: '▸';
  font-size: 10px;
  transition: transform 0.2s;
}
.api-settings[open] > summary::before { transform: rotate(90deg); }
.api-settings > summary::-webkit-details-marker { display: none; }

/* ZPL editor */
.zpl-editor {
  margin-top: 18px;
  border-top: 1px solid var(--border);
  padding-top: 18px;
}
.zpl-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 7px;
}
.zpl-editor label { margin-bottom: 0; }
.zpl-editor textarea {
  min-height: 200px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11.5px;
  line-height: 1.55;
  resize: vertical;
  white-space: pre;
  word-wrap: normal;
  overflow-x: auto;
}

/* Preview */
.preview { display: flex; flex-direction: column; }

.preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.preview-head h2 { margin-bottom: 0; }

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
}
.nav .btn-icon {
  border: none;
  background: transparent;
  width: 28px;
  height: 28px;
}
.nav span {
  padding: 0 14px;
  font-size: 13px;
  color: var(--muted);
  min-width: 60px;
  text-align: center;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.preview-stage {
  background: var(--panel-2);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 32px;
  flex: 1;
  min-height: 360px;
  display: grid;
  place-items: center;
  position: relative;
  transition: border-color 0.2s, background 0.2s;
  overflow: auto;
}
.preview-stage img,
.preview-stage .label-canvas {
  max-width: 100%;
  max-height: 65vh;
  background: white;
  border-radius: 4px;
  box-shadow: var(--shadow-lg);
  display: block;
  image-rendering: auto;
}

.empty {
  text-align: center;
  color: var(--muted);
}
.empty svg { margin-bottom: 12px; }
.empty p { font-size: 14px; font-weight: 500; margin-bottom: 4px; color: var(--text); }
.empty small { font-size: 12px; color: var(--muted-2); }

.error {
  text-align: center;
  padding: 20px;
  color: var(--danger);
  font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
  max-width: 100%;
  word-break: break-word;
}

.spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.preview-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}
.preview-actions > .btn,
.preview-actions > .print-wrap {
  flex: 1;
}
.preview-actions .btn {
  justify-content: center;
  padding: 12px 18px;
  width: 100%;
}

/* Print dropdown */
.print-wrap {
  position: relative;
}
.print-menu {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 6px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  z-index: 50;
  animation: slideUp 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}
.print-menu[hidden] { display: none !important; }
.print-menu-field {
  padding: 10px 12px 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.print-menu-field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.print-menu-field input {
  width: 100%;
  padding: 8px 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s;
}
.print-menu-field input:focus {
  border-color: var(--accent);
}
.print-menu-field small {
  display: block;
  font-size: 11px;
  color: var(--muted);
  margin-top: 6px;
}
.print-menu-field small code {
  font-family: 'JetBrains Mono', monospace;
  background: var(--panel-2);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 10px;
}
.print-menu button {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s;
}
.print-menu button:hover {
  background: var(--panel-2);
}
.print-menu button + button { margin-top: 2px; }
.print-menu button svg {
  flex-shrink: 0;
  color: var(--accent);
}
.print-menu button div > div { font-weight: 600; }
.print-menu button small {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 400;
  margin-top: 2px;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 14px 22px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  max-width: 90%;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast.error { border-color: var(--danger); background: rgba(255, 92, 124, 0.1); }
.toast.success { border-color: var(--success); background: rgba(79, 207, 122, 0.1); }

/* Drag highlight */
.app.dragging .preview-stage {
  border-color: var(--accent);
  background: rgba(124, 92, 255, 0.05);
}
.app.dragging::after {
  content: 'Solte o arquivo aqui';
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(11, 11, 20, 0.85);
  backdrop-filter: blur(6px);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  z-index: 500;
  pointer-events: none;
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 12, 0.75);
  backdrop-filter: blur(8px);
  display: grid;
  place-items: center;
  z-index: 2000;
  padding: 20px;
  animation: fadeIn 0.2s ease-out;
}
.modal-backdrop[hidden] { display: none !important; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.modal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 100%;
  max-width: 480px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
  animation: slideUp 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 22px 22px 16px;
  border-bottom: 1px solid var(--border);
}
.modal-head h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 3px;
}
.modal-head p {
  font-size: 12px;
  color: var(--muted);
}
.modal-close {
  font-size: 22px;
  line-height: 1;
  width: 30px;
  height: 30px;
}

.modal-search-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}
.modal-search-wrap input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
}

.printer-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  min-height: 100px;
}

.printer-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  border: 1px solid transparent;
}
.printer-item:hover {
  background: var(--panel-2);
  border-color: var(--border);
}
.printer-item.favorite {
  background: rgba(124, 92, 255, 0.08);
  border-color: rgba(124, 92, 255, 0.25);
}
.printer-item.selected {
  background: rgba(124, 92, 255, 0.15);
  border-color: var(--accent);
}
.printer-item .p-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--panel-2);
  display: grid;
  place-items: center;
  color: var(--muted);
  flex-shrink: 0;
}
.printer-item.favorite .p-icon {
  background: var(--gradient);
  color: white;
}
.printer-item .p-info {
  flex: 1;
  min-width: 0;
}
.printer-item .p-name {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.printer-item .p-tag {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
}
.printer-item .p-check {
  color: var(--accent);
  opacity: 0;
  transition: opacity 0.15s;
}
.printer-item.selected .p-check { opacity: 1; }

.printer-empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--muted);
  font-size: 13px;
}

.modal-foot {
  padding: 14px 18px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

/* ===== SEO content section ===== */
.seo-content {
  margin: 56px auto 0;
  max-width: 1180px;
  padding: 0 20px 72px;
  color: var(--text);
}
.seo-content h2,
.seo-content h3 { color: var(--text); }
.seo-hero {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 40px;
}
.seo-hero h2 {
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.seo-hero p {
  font-size: 16px;
  line-height: 1.65;
  color: var(--muted);
  margin: 0;
}
.seo-hero strong { color: var(--text); font-weight: 600; }

.seo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-bottom: 48px;
}
.seo-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 22px;
  transition: border-color 0.2s, transform 0.2s;
}
.seo-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.seo-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.seo-card p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--muted);
  margin: 0;
}

.seo-howto {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 26px 28px;
  margin-bottom: 40px;
}
.seo-howto h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}
.seo-howto ol {
  margin: 0;
  padding-left: 22px;
  color: var(--muted);
  line-height: 1.7;
  font-size: 15px;
}
.seo-howto ol li { margin-bottom: 6px; }
.seo-howto ol li strong { color: var(--text); font-weight: 600; }
.seo-howto code,
.seo-faq code {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  background: var(--panel-2);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 5px;
  font-size: 0.88em;
  color: var(--text);
}

.seo-faq { margin-bottom: 40px; }
.seo-faq > h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}
.seo-faq details {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 10px;
  transition: border-color 0.2s;
}
.seo-faq details[open] { border-color: var(--border-hover); }
.seo-faq summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--text);
}
.seo-faq summary::-webkit-details-marker { display: none; }
.seo-faq summary::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: var(--muted);
  transition: transform 0.2s;
  line-height: 1;
}
.seo-faq details[open] summary::after { content: "−"; }
.seo-faq details p {
  margin: 12px 0 2px;
  color: var(--muted);
  line-height: 1.65;
  font-size: 14.5px;
}
.seo-faq details p strong { color: var(--text); font-weight: 600; }

.seo-footer {
  text-align: center;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  color: var(--muted-2);
  font-size: 13px;
  line-height: 1.6;
}

@media (max-width: 640px) {
  .seo-content { margin-top: 40px; padding: 0 16px 48px; }
  .seo-howto { padding: 20px; }
}