:root {
  color-scheme: light;
  --paper: #f5efe4;
  --paper-strong: #efe5d4;
  --ink: #151311;
  --ink-soft: #4d453d;
  --line: rgba(21, 19, 17, 0.12);
  --accent: #ca4b2d;
  --accent-strong: #7b1f12;
  --accent-soft: rgba(202, 75, 45, 0.14);
  --panel: rgba(255, 251, 245, 0.88);
  --shadow: 0 20px 50px rgba(43, 33, 22, 0.14);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

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

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Zen Kaku Gothic New", "Hiragino Sans", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(202, 75, 45, 0.14), transparent 28%),
    radial-gradient(circle at right 20%, rgba(45, 76, 115, 0.1), transparent 22%),
    linear-gradient(180deg, #fbf7ef 0%, #f3ebde 100%);
}

button,
input,
select {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

.hidden {
  display: none !important;
}

.page-shell {
  width: min(1440px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 32px 0 40px;
}

.hero {
  display: block;
  padding: 8px 4px 28px;
}

.hero-copy {
  width: 100%;
  max-width: none;
}

.eyebrow,
.empty-kicker {
  margin: 0 0 8px;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

.hero h1 {
  margin: 0;
  font-family: "Aoboshi One", serif;
  font-size: clamp(3rem, 7vw, 5.4rem);
  line-height: 0.92;
}

.lead {
  width: 100%;
  max-width: none;
  margin: 18px 0 0;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.workspace {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 22px;
}

.control-panel,
.preview-panel {
  min-width: 0;
}

.panel-card,
.preview-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.control-panel {
  display: grid;
  gap: 16px;
}

.panel-card {
  padding: 20px;
}

.section-heading h2,
.empty-state h2 {
  margin: 0;
  font-size: 1.18rem;
}

.section-heading p,
.empty-state p,
.hint,
.status-text {
  margin: 6px 0 0;
  line-height: 1.7;
  color: var(--ink-soft);
}

.dropzone {
  display: grid;
  place-items: center;
  gap: 6px;
  min-height: 152px;
  margin-top: 16px;
  padding: 18px;
  border: 1.5px dashed rgba(123, 31, 18, 0.26);
  border-radius: var(--radius-md);
  background:
    linear-gradient(135deg, rgba(202, 75, 45, 0.08), rgba(255, 255, 255, 0.45)),
    var(--paper);
  text-align: center;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.dropzone:hover,
.dropzone.is-dragging {
  transform: translateY(-1px);
  border-color: rgba(123, 31, 18, 0.52);
  box-shadow: 0 16px 30px rgba(91, 38, 24, 0.08);
}

.dropzone input {
  display: none;
}

.dropzone-title {
  font-weight: 700;
  font-size: 1.05rem;
}

.dropzone-note {
  color: var(--ink-soft);
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 18px 0 0;
}

.meta-grid div {
  padding: 14px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.46);
}

.meta-grid dt {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.meta-grid dd {
  margin: 6px 0 0;
  font-weight: 700;
  line-height: 1.5;
  word-break: break-word;
}

.page-controls,
.action-grid {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.page-controls {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: end;
}

.page-jump,
.range-control,
.select-control {
  display: grid;
  gap: 8px;
}

.page-jump span,
.range-control span,
.select-control span {
  color: var(--ink-soft);
}

.page-jump input,
.select-control select {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.72);
}

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

.ghost-button,
.primary-button {
  min-height: 46px;
  padding: 0 16px;
  border-radius: 14px;
  transition: transform 140ms ease, opacity 140ms ease, box-shadow 140ms ease;
}

.ghost-button {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.62);
  color: var(--ink);
}

.primary-button {
  background: linear-gradient(135deg, var(--accent) 0%, #ab2413 100%);
  color: #fffaf4;
  box-shadow: 0 16px 28px rgba(123, 31, 18, 0.2);
}

.ghost-button:hover,
.primary-button:hover {
  transform: translateY(-1px);
}

.ghost-button:disabled,
.primary-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.hint {
  margin-top: 14px;
  font-size: 0.94rem;
}

.redaction-list {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.redaction-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.5);
}

.redaction-item.is-selected {
  border-color: rgba(123, 31, 18, 0.38);
  background: var(--accent-soft);
}

.redaction-item strong {
  display: block;
  margin-bottom: 2px;
}

.unstyled-select {
  display: block;
  width: 100%;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
}

.redaction-item p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.mini-button {
  min-height: 38px;
  padding: 0 14px;
  border-radius: 10px;
  background: rgba(21, 19, 17, 0.08);
  color: var(--ink);
}

.status-card {
  background:
    linear-gradient(145deg, rgba(255, 250, 244, 0.92), rgba(242, 234, 220, 0.78)),
    var(--panel);
}

.preview-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-height: 760px;
  overflow: hidden;
}

.preview-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
}

.stage {
  position: relative;
  padding: 24px;
  overflow: auto;
}

.empty-state {
  display: grid;
  place-items: center;
  min-height: 620px;
  border: 1px dashed rgba(21, 19, 17, 0.12);
  border-radius: 24px;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.92), rgba(245, 239, 228, 0.8)),
    var(--paper);
  text-align: center;
  padding: 32px;
}

.canvas-shell {
  position: relative;
  width: fit-content;
  margin: 0 auto;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(246, 240, 230, 0.94));
  box-shadow: 0 24px 44px rgba(43, 33, 22, 0.12);
  overflow: hidden;
}

#pdf-canvas {
  display: block;
  max-width: 100%;
  background: white;
}

.selection-layer {
  position: absolute;
  inset: 0;
  cursor: crosshair;
  user-select: none;
  touch-action: none;
}

.redaction-box {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.85);
  background: rgba(0, 0, 0, 0.88);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.18);
}

.redaction-box.is-selected {
  outline: 3px solid rgba(202, 75, 45, 0.95);
  outline-offset: 2px;
}

.redaction-box.is-draft {
  background: rgba(0, 0, 0, 0.58);
  border-style: dashed;
}

@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .preview-panel {
    min-height: 620px;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(100vw - 20px, 100%);
    padding-top: 20px;
  }

  .page-controls {
    grid-template-columns: 1fr;
  }

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

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

  .stage {
    padding: 14px;
  }

  .empty-state {
    min-height: 400px;
  }
}