/* High-contrast accessible theme; dark mode via data-theme */

:root {
  --bg: #ffffff;
  --fg: #000000;
  --muted: #1a1a1a;
  --border: #000000;
  --accent: #003366;
  --accent-contrast: #ffffff;
  --focus-ring: 3px solid #0066cc;
  --panel-bg: #f4f4f4;
  --status-bg: #e8e8e8;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell,
    "Noto Sans", sans-serif;
  --line: 1.5;
}

[data-theme="dark"] {
  --bg: #000000;
  --fg: #ffffff;
  --muted: #e0e0e0;
  --border: #ffffff;
  --accent: #ffcc00;
  --accent-contrast: #000000;
  --focus-ring: 3px solid #ffcc00;
  --panel-bg: #0d0d0d;
  --status-bg: #1a1a1a;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  line-height: var(--line);
  color: var(--fg);
  background: var(--bg);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  position: fixed;
  left: 0.5rem;
  top: 0.5rem;
  width: auto;
  height: auto;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: var(--accent-contrast);
  z-index: 1000;
  text-decoration: none;
  border: 2px solid var(--border);
}

.site-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 3px solid var(--border);
  max-width: 56rem;
  margin: 0 auto;
}

.site-header-top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.site-header-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
}

/* Yellow support link: golden text, readable on both themes */
.support-link {
  color: #b38600;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  padding: 0.5rem 0.25rem;
  border: 2px solid transparent;
  border-radius: 2px;
}

.support-link:hover {
  color: #8f6a00;
  text-decoration-thickness: 2px;
}

.support-link:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
  border-color: #ffcc00;
  background: rgba(255, 204, 0, 0.2);
}

[data-theme="dark"] .support-link {
  color: #ffeb3b;
}

[data-theme="dark"] .support-link:hover {
  color: #fff59d;
}

.site-header h1 {
  margin: 0;
  font-size: clamp(1.5rem, 4vw, 2rem);
}

.tagline {
  margin: 0 0 1rem;
  max-width: 48rem;
  color: var(--muted);
}

.text-btn {
  font: inherit;
  font-weight: 600;
  padding: 0.5rem 0.75rem;
  border: 2px solid transparent;
  background: transparent;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.text-btn:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.theme-toggle {
  font: inherit;
  padding: 0.5rem 1rem;
  border: 2px solid var(--border);
  background: var(--panel-bg);
  color: var(--fg);
  cursor: pointer;
}

.welcome-overlay {
  position: fixed;
  inset: 0;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.65);
  overflow-y: auto;
}

.welcome-overlay[hidden] {
  display: none;
}

.welcome-card {
  max-width: 36rem;
  width: 100%;
  padding: 1.5rem;
  border: 3px solid var(--border);
  background: var(--bg);
  color: var(--fg);
  box-shadow: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.35);
}

.welcome-card h2 {
  margin-top: 0;
  font-size: 1.35rem;
}

.welcome-card p {
  margin: 0 0 1rem;
}

.welcome-steps {
  margin: 0 0 1.25rem;
  padding-left: 1.25rem;
  line-height: 1.6;
}

.welcome-steps li {
  margin-bottom: 0.35rem;
}

.theme-toggle:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.main {
  padding: 0 0 3rem;
}

.main-column {
  max-width: 56rem;
  margin: 0 auto;
  padding: 1rem 1.5rem 0;
}

.output-bleed {
  width: 100%;
  margin-top: 1.5rem;
  padding: 0 0.5rem 1rem;
  box-sizing: border-box;
}

@media (min-width: 48rem) {
  .output-bleed {
    padding: 0 1rem 1.5rem;
  }
}

.panel {
  margin-bottom: 2rem;
  padding: 1.25rem;
  border: 2px solid var(--border);
  background: var(--panel-bg);
}

.panel h2 {
  margin-top: 0;
  font-size: 1.25rem;
}

.hint {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.field-row {
  margin-bottom: 1rem;
}

.file-label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

input[type="file"] {
  font: inherit;
  max-width: 100%;
}

input[type="file"]:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.preview-block {
  margin-top: 1rem;
}

.preview-heading {
  font-size: 1rem;
  margin: 0 0 0.5rem;
}

.preview-canvas {
  display: block;
  max-width: 100%;
  height: auto;
  border: 2px solid var(--border);
  background: #fff;
}

[data-theme="dark"] .preview-canvas {
  background: #000;
}

.fieldset {
  border: 2px solid var(--border);
  padding: 0.75rem 1rem 1rem;
  margin: 0 0 1rem;
  background: var(--bg);
}

.fieldset legend {
  font-weight: 600;
  padding: 0 0.35rem;
}

.radio-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.radio-row label {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  cursor: pointer;
}

.radio-row input:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.checkbox-row label {
  cursor: pointer;
  font-weight: 600;
}

.primary-btn,
.secondary-btn {
  font: inherit;
  font-weight: 600;
  padding: 0.65rem 1.25rem;
  border: 2px solid var(--border);
  cursor: pointer;
  margin-bottom: 0.75rem;
}

.primary-btn {
  background: var(--accent);
  color: var(--accent-contrast);
}

.secondary-btn {
  background: var(--bg);
  color: var(--fg);
}

.primary-btn:focus-visible,
.secondary-btn:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.primary-btn:disabled,
.secondary-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.status-region {
  min-height: 1.5rem;
  margin: 0.75rem 0 1rem;
  padding: 0.5rem;
  background: var(--status-bg);
  border: 1px solid var(--border);
  font-weight: 600;
}

.output-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.output-block {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.output-label {
  font-weight: 700;
  font-size: 1.1rem;
}

.output-img {
  display: block;
  width: 100%;
  height: auto;
  border: 2px solid var(--border);
  background: #fff;
}

[data-theme="dark"] .output-img {
  background: #000;
}

.textarea-label {
  display: block;
  font-weight: 600;
  margin: 0.75rem 0 0.35rem;
}

.extracted-text {
  width: 100%;
  font: inherit;
  font-size: 1.2rem;
  line-height: 1.6;
  padding: 0.75rem;
  border: 2px solid var(--border);
  background: var(--bg);
  color: var(--fg);
  resize: vertical;
  min-height: 16rem;
}

.extracted-text:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.site-footer {
  max-width: 56rem;
  margin: 0 auto;
  padding: 1rem 1.5rem 2rem;
  border-top: 2px solid var(--border);
  font-size: 0.95rem;
  color: var(--muted);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (min-width: 40rem) {
  .radio-row {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem 1.5rem;
  }
}

@media print {
  @page {
    margin: 0.5in;
  }

  html,
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }

  .skip-link,
  .site-header,
  .site-footer,
  .panel,
  .status-region,
  .welcome-overlay,
  #step-upload,
  #step-config,
  #step-verify,
  #step-process {
    display: none !important;
  }

  .main,
  .main-column,
  .output-bleed,
  .output-container {
    margin: 0 !important;
    padding: 0 !important;
    max-width: none !important;
    width: 100% !important;
  }

  .output-block {
    page-break-inside: avoid;
    break-inside: avoid;
    page-break-after: always;
    break-after: page;
    margin: 0;
    padding: 0;
  }

  .output-block:last-child {
    page-break-after: auto;
    break-after: auto;
  }

  .output-label {
    font-size: 0.9rem;
    margin: 0 0 0.25rem;
    color: #000000 !important;
  }

  .output-img {
    width: 100%;
    max-height: 9.5in;
    height: auto;
    object-fit: contain;
    border: none !important;
    background: #ffffff !important;
  }
}

.debug-panel {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40vh;
  background: var(--panel-bg);
  border-top: 3px solid var(--border);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  padding: 1rem;
  box-shadow: 0 -0.5rem 1rem rgba(0, 0, 0, 0.2);
}

.debug-panel[hidden] {
  display: none;
}

.debug-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--border);
  padding-bottom: 0.5rem;
  margin-bottom: 0.5rem;
}

.debug-header h3 {
  margin: 0;
  font-size: 1.1rem;
}

#debug-output {
  flex-grow: 1;
  overflow-y: auto;
  font-family: monospace;
  font-size: 0.9rem;
  background: var(--bg);
  color: var(--fg);
  padding: 0.5rem;
  margin: 0;
  border: 1px solid var(--border);
  white-space: pre-wrap;
}