.app-hero {
  text-align: center;
  padding: 28px 0 16px;
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(59, 130, 246, 0.15);
  color: var(--blue-400);
  padding: 6px 16px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 12px;
}

.header-sub {
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.55;
}

.cert-main {
  padding-bottom: 48px;
}

.cert-layout {
  display: grid;
  grid-template-columns: minmax(280px, 380px) 1fr;
  gap: var(--gap-xl);
  align-items: start;
}

@media (max-width: 980px) {
  .cert-layout {
    grid-template-columns: 1fr;
  }
}

.cert-panel .panel-title,
.cert-preview-card .panel-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 var(--gap-md);
  color: var(--text-primary);
}

.form-stack {
  display: flex;
  flex-direction: column;
  gap: var(--gap-md);
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-group input[type="text"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--navy-600);
  background: var(--navy-800);
  color: var(--text-primary);
  font-family: var(--font-sans), "Noto Sans Thai", system-ui, sans-serif;
  font-size: 15px;
}

.form-group textarea {
  resize: vertical;
  min-height: 96px;
}

.form-group input[type="color"] {
  width: 100%;
  height: 44px;
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--navy-600);
  background: var(--navy-800);
  cursor: pointer;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-md);
}

@media (max-width: 420px) {
  .form-row-2 {
    grid-template-columns: 1fr;
  }
}

.check-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.check-row input {
  width: auto;
}

.check-row label {
  margin: 0;
  cursor: pointer;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-sm);
  margin-top: var(--gap-sm);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
  color: #fff;
}

.btn-primary:hover {
  filter: brightness(1.06);
}

.btn-secondary {
  background: var(--navy-700);
  color: var(--text-primary);
  border: 1px solid var(--navy-600);
}

.btn-secondary:hover {
  border-color: var(--blue-400);
}

.hint {
  font-size: 12px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.45;
}

.canvas-wrap {
  width: 100%;
  overflow: auto;
  background: rgba(15, 23, 42, 0.5);
  border-radius: var(--radius-md);
  border: 1px solid var(--navy-600);
  padding: 12px;
  text-align: center;
}

.cert-stage-ratio {
  position: relative;
  width: 100%;
  max-width: 920px;
  margin: 0 auto;
  aspect-ratio: 1600 / 1131;
}

#certCanvas {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 4px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  vertical-align: top;
}

.cert-drag-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: 4px;
  overflow: hidden;
}

.cert-drag-marker {
  position: absolute;
  pointer-events: auto;
  touch-action: none;
  transform: translate(-50%, -50%);
  width: 28px;
  height: 28px;
  padding: 0;
  margin: 0;
  border: 2px solid var(--blue-400);
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.92);
  color: var(--blue-300);
  font-weight: 800;
  font-size: 10px;
  line-height: 1;
  cursor: grab;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
  z-index: 2;
}

.cert-drag-marker:hover {
  filter: brightness(1.08);
}

.cert-drag-marker:active {
  cursor: grabbing;
}

.cert-drag-marker.is-dragging {
  border-color: #fff;
  z-index: 4;
}

.cert-align-guide {
  position: absolute;
  background: #38bdf8;
  pointer-events: none;
  display: none;
  z-index: 3;
  box-shadow: 0 0 0 0.5px rgba(56, 189, 248, 0.6);
}

.cert-align-guide.is-active {
  display: block;
}

.cert-align-guide-v {
  top: 0;
  bottom: 0;
  width: 1px;
  transform: translateX(-0.5px);
}

.cert-align-guide-h {
  left: 0;
  right: 0;
  height: 1px;
  transform: translateY(-0.5px);
}

.label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.label-row label {
  margin-bottom: 0;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* theme.css sets input[type="number"] { width:100% } at specificity 0,1,1
   so we need at least 0,2,1 to override it */
input[type="number"].font-size-input {
  width: 58px;
  min-width: 0;
  padding: 5px 6px;
  font-size: 12px;
  border-radius: var(--radius-sm, 4px);
  border: 1px solid var(--navy-600);
  background: var(--navy-800);
  color: var(--text-primary);
  text-align: right;
  font-family: inherit;
  flex-shrink: 0;
}

input[type="number"].font-size-input::-webkit-outer-spin-button,
input[type="number"].font-size-input::-webkit-inner-spin-button {
  opacity: 1;
}

.custom-lines-fieldset .custom-lines-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 8px;
}

.custom-line-row {
  display: grid;
  grid-template-columns: 1fr 70px auto auto;
  gap: 6px;
  align-items: center;
}

.custom-line-row input[type="text"] {
  width: 100%;
  padding: 8px 10px;
  border-radius: var(--radius-md);
  border: 1px solid var(--navy-600);
  background: var(--navy-800);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
}

.custom-line-row input[type="number"].font-size-input {
  width: 100%;
}

.custom-line-accent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--navy-600);
  background: var(--navy-800);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  user-select: none;
}

.custom-line-accent.is-on {
  border-color: var(--blue-400);
  color: var(--blue-300);
  background: rgba(59, 130, 246, 0.16);
}

.custom-line-remove {
  width: 32px;
  height: 32px;
  padding: 0;
  font-size: 18px;
  line-height: 1;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--navy-600);
  background: var(--navy-700);
  color: var(--text-secondary);
  cursor: pointer;
}

.custom-line-remove:hover {
  border-color: #ef4444;
  color: #fecaca;
}

.custom-lines-empty {
  font-size: 12px;
  color: var(--text-muted);
  padding: 4px 2px;
}

.preset-slots {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 6px;
}

.preset-slot {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border: 1px solid var(--navy-600);
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.4);
}

.preset-slot.is-filled {
  border-color: rgba(59, 130, 246, 0.45);
  background: rgba(59, 130, 246, 0.07);
}

.preset-slot-num {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-align: center;
}

.preset-slot.is-filled .preset-slot-num {
  color: var(--blue-300);
}

.preset-slot-name {
  font-size: 13px;
  color: var(--text-primary);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preset-slot.is-empty .preset-slot-name {
  color: var(--text-muted);
  font-style: italic;
}

.preset-slot-actions {
  display: inline-flex;
  gap: 4px;
}

.preset-slot-actions button {
  padding: 5px 10px;
  font-size: 12px;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--navy-600);
  background: var(--navy-700);
  color: var(--text-primary);
  cursor: pointer;
  font-family: inherit;
}

.preset-slot-actions button:hover {
  border-color: var(--blue-400);
}

.preset-slot-actions button[disabled] {
  opacity: 0.4;
  cursor: not-allowed;
}

.preset-slot-actions .preset-btn-delete:hover {
  border-color: #ef4444;
  color: #fecaca;
}

.preset-slot-actions .preset-btn-load:hover {
  color: var(--blue-300);
}

.asset-fieldset {
  border: 1px solid var(--navy-600);
  border-radius: var(--radius-md);
  padding: var(--gap-md);
  margin: 0;
}

.batch-fieldset textarea {
  min-height: 120px;
  font-family: var(--font-sans), "Noto Sans Thai", system-ui, sans-serif;
}

.zip-status {
  min-height: 18px;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
  line-height: 1.45;
}

.batch-preview-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 8px;
  align-items: center;
  margin-top: 6px;
  margin-bottom: 10px;
}

.batch-preview-meta {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.batch-names {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.batch-chip {
  pointer-events: auto;
  cursor: pointer;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--navy-600);
  background: rgba(30, 41, 59, 0.6);
  color: var(--text-secondary);
  transition: border-color 0.15s, background 0.15s;
  user-select: none;
}

.batch-chip:hover {
  border-color: var(--blue-400);
  background: rgba(59, 130, 246, 0.12);
}

.batch-chip.active {
  border-color: var(--blue-300);
  background: rgba(59, 130, 246, 0.22);
  color: var(--text-primary);
}

.zip-status strong {
  color: var(--text-secondary);
}

.asset-fieldset legend {
  padding: 0 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.muted-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 6px;
}

.file-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.btn-sm {
  padding: 8px 12px;
  font-size: 13px;
}

.drop-zone {
  font-size: 12px;
  color: var(--text-muted);
  border: 1px dashed var(--navy-500);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
  margin-bottom: var(--gap-sm);
}

.drop-zone.cert-drop-active {
  border-color: var(--blue-400);
  background: rgba(59, 130, 246, 0.12);
}

.logo-scale-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

#fieldLogoScale {
  width: 100%;
  accent-color: var(--blue-500);
}

#fieldSignatureScale {
  width: 100%;
  accent-color: var(--blue-500);
}

.stack-actions {
  padding-top: 0;
}

.form-actions + .hint {
  margin-top: var(--gap-sm);
}

.cert-footer {
  padding-bottom: 32px;
}

.cert-footer p {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  margin: 0;
}

.cert-ad-wrap {
  text-align: center;
  padding: 8px 0;
}