:root {
  color-scheme: light;
  --bg: #f7f7f9;
  --card: #ffffff;
  --text: #222222;
  --muted: #5a5f6a;
  --border: #e1e4ea;
  --accent: #1b6ffb;
  --accent-dark: #1558c8;
  --shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --warn: #92400e;
  --warn-bg: #fffbeb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a {
  color: var(--accent);
}

a:hover {
  color: var(--accent-dark);
}

.nw-header {
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  padding: 32px 20px 24px;
}

.nw-header-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.nw-title {
  margin: 0 0 8px;
  font-size: 28px;
}

.nw-subtitle {
  margin: 0 0 16px;
  color: var(--muted);
}

.nw-lang-switch {
  margin-top: 8px;
  font-size: 14px;
}

.nw-lang-switch button {
  background: none;
  border: none;
  color: var(--accent);
  font-weight: 600;
  cursor: pointer;
  padding: 4px 6px;
}

.nw-lang-switch button.active {
  color: var(--text);
}

.nw-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.nw-note {
  margin: 12px 0 24px;
  color: var(--muted);
  font-size: 14px;
}

.ad-slot {
  border: 1px dashed var(--border);
  background: #ffffff;
  text-align: center;
  padding: 16px;
  margin-bottom: 24px;
  color: var(--muted);
}

.card,
.intro-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.intro-card {
  box-shadow: none;
}

.intro-lead {
  margin: 0 0 10px;
  font-size: 15px;
}

.usage-link {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.notice-card {
  border-color: #f59e0b;
  background: linear-gradient(180deg, #ffffff 0%, #fffdf5 100%);
}

.compat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.compat-grid h3 {
  margin: 0 0 8px;
  font-size: 15px;
}

.compat-grid ul {
  margin: 0 0 0 18px;
  padding: 0;
}

.compat-grid li {
  margin-bottom: 4px;
}

.notice-strong,
.result-caution {
  border: 1px solid #f59e0b;
  background: var(--warn-bg);
  color: var(--warn);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 600;
}

.notice-strong {
  margin: 16px 0 0;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps-grid li {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  background: #fafafa;
}

.steps-grid strong,
.steps-grid span {
  display: block;
}

.steps-grid span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.card-title {
  margin: 0 0 16px;
  font-size: 20px;
}

.form-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.form-row > * {
  flex: 1 1 220px;
}

.form-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.form-actions.align-center {
  align-items: center;
  margin-top: 20px;
}

button.primary {
  background: var(--accent);
  color: #ffffff;
  border: none;
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
}

button.primary:disabled {
  background: #cbd5f5;
  cursor: not-allowed;
}

button.secondary {
  background: #ffffff;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
}

.ghost {
  background: #ffffff;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #ffffff;
  padding: 12px;
}

.upload-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
}

.form-hint {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.form-hint.inline {
  margin: 0;
}

.form-label.small {
  font-size: 13px;
  margin-bottom: 6px;
  color: var(--muted);
}

.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 14px;
  padding: 24px 16px;
  text-align: center;
  background: #fafafa;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.drop-zone.dragover {
  border-color: var(--accent);
  background: #eef4ff;
}

.drop-zone-title {
  margin: 0 0 6px;
  font-weight: 600;
}

.drop-zone-sub {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.text-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
}

.text-input:focus {
  outline: 2px solid rgba(27, 111, 251, 0.2);
  border-color: var(--accent);
}

.segmented {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  background: #fafafa;
  gap: 4px;
}

.segmented-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 14px;
  color: var(--muted);
  user-select: none;
}

.segmented-item input {
  margin: 0;
}

.segmented-item input:checked + span {
  color: var(--text);
  font-weight: 600;
}

.manual-controls {
  margin-top: 12px;
  padding: 12px;
  border-radius: 12px;
  border: 1px dashed var(--border);
  background: #fafafa;
}

.manual-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 8px 0;
}

.manual-coords {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.form-hint.warning {
  color: var(--danger);
  font-weight: 600;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 14px;
  color: var(--text);
}

.warning-box {
  border: 1px solid #f59e0b;
  background: var(--warn-bg);
  color: var(--warn);
  border-radius: 12px;
  padding: 10px 14px;
  margin-top: 16px;
  font-size: 13px;
}

.result-summary {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.progress-wrap {
  margin-top: 16px;
}

.progress-track {
  position: relative;
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  background: #e5e7eb;
}

.progress-value {
  position: absolute;
  height: 100%;
  width: 40%;
  background: linear-gradient(90deg, #60a5fa, #1b6ffb, #60a5fa);
  animation: progress-slide 1.2s ease-in-out infinite;
}

.progress-text {
  margin: 6px 0 0;
  font-size: 12px;
  color: var(--muted);
}

@keyframes progress-slide {
  0% { transform: translateX(-60%); }
  100% { transform: translateX(220%); }
}

.status-list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.status-list div {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dashed var(--border);
  padding-bottom: 6px;
}

.status-list dt {
  font-weight: 600;
}

.status-list dd {
  margin: 0;
  color: var(--muted);
}

.error-box {
  border: 1px solid var(--danger);
  background: var(--danger-bg);
  border-radius: 12px;
  padding: 12px 14px;
  margin-top: 12px;
}

.error-box p {
  margin: 0;
  font-size: 13px;
}

.error-what {
  font-weight: 700;
  color: var(--danger);
}

.error-how {
  margin-top: 4px;
  color: var(--text);
}

.preview-area {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fafafa;
  padding: 16px;
  text-align: center;
  min-height: 260px;
  position: relative;
}

#pdfPreview {
  max-width: 100%;
  height: auto;
  display: none;
}

.preview-area.manual-active #pdfPreview {
  cursor: crosshair;
}

.preview-area.has-preview #pdfPreview {
  display: inline-block;
}

.selection-rect {
  position: absolute;
  border: 2px solid rgba(27, 111, 251, 0.9);
  background: rgba(27, 111, 251, 0.15);
  pointer-events: none;
  border-radius: 4px;
}

.preview-placeholder {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.preview-area.has-preview .preview-placeholder {
  display: none;
}

.preview-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  margin-bottom: 12px;
}

.result-caution {
  margin: 0 0 12px;
}

.delimiter-field {
  display: flex;
  align-items: center;
  gap: 12px;
}

.preview-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.preview-table th,
.preview-table td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  white-space: nowrap;
}

.preview-table thead th {
  background: #f8fafc;
  font-weight: 600;
}

.preview-table thead input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 13px;
}

.preview-empty {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.nw-donate {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  margin: 32px 0 24px;
  text-align: center;
}

.nw-donate-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.nw-donate-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  text-decoration: none;
  color: var(--text);
  background: #fafafa;
}

.nw-links {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

.nw-links a {
  margin-right: 12px;
  color: var(--muted);
  text-decoration: underline;
}

.nw-footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 28px 16px 40px;
  color: var(--muted);
  font-size: 13px;
  background: #ffffff;
}

.doc-main {
  max-width: 600px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.doc-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.doc-card + .doc-card {
  margin-top: 24px;
}

.doc-section {
  margin-top: 20px;
}

.doc-section h3 {
  margin: 16px 0 8px;
  font-size: 17px;
}

.doc-list {
  margin: 8px 0 0 18px;
  padding: 0;
}

.doc-list li {
  margin-bottom: 6px;
}

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

.doc-callout {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  background: #fafafa;
  font-size: 14px;
  margin-top: 12px;
}

.doc-back {
  margin-top: 20px;
  font-weight: 600;
}

.faq-list {
  margin: 12px 0 0;
}

.faq-list dt {
  font-weight: 700;
  margin-top: 12px;
}

.faq-list dd {
  margin: 6px 0 0;
  color: var(--muted);
}

@media (max-width: 768px) {
  .compat-grid,
  .steps-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .nw-header {
    padding: 24px 16px 18px;
  }

  .nw-main {
    padding: 18px 12px 44px;
  }

  .card,
  .intro-card {
    padding: 18px;
    border-radius: 14px;
  }

  .form-actions,
  .form-actions.align-center,
  .manual-actions,
  .nw-donate-links {
    flex-direction: column;
    align-items: stretch;
  }

  button.primary,
  button.secondary,
  .ghost {
    width: 100%;
  }

  .preview-controls {
    flex-direction: column;
    align-items: flex-start;
  }

  .delimiter-field {
    flex-direction: column;
    align-items: flex-start;
  }
}