:root {
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #d1d5db;
  --soft: #f8fafc;
  --paper: #ffffff;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --card-width: 134mm;
  --message-font-size: 11pt;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", system-ui, sans-serif;
  color: var(--ink);
  background: #eef2f7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app {
  width: min(1500px, 100%);
  margin: 0 auto;
  padding: 28px;
}

.hero,
.controls,
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.hero {
  margin-bottom: 20px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 8px;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
}

h2 {
  margin-bottom: 0;
  font-size: 1.25rem;
}

.lead {
  margin-bottom: 0;
  color: var(--muted);
}

.primary-button,
.secondary-button,
.remove-entry {
  border: 0;
  border-radius: 10px;
  font-weight: 700;
}

.primary-button {
  min-width: 130px;
  padding: 13px 20px;
  color: #fff;
  background: var(--accent);
  box-shadow: 0 8px 24px rgb(37 99 235 / 20%);
}

.primary-button:hover {
  background: var(--accent-dark);
}

.secondary-button {
  padding: 9px 14px;
  color: var(--accent-dark);
  background: #e8efff;
}

.controls {
  justify-content: flex-start;
  flex-wrap: wrap;
  padding: 16px;
  margin-bottom: 22px;
  background: #fff;
  border: 1px solid #dde3eb;
  border-radius: 14px;
}

.control-group {
  display: grid;
  gap: 5px;
}

.control-group label,
.editor-card label > span {
  font-size: 0.78rem;
  font-weight: 800;
  color: #4b5563;
}

input,
textarea,
select {
  border: 1px solid #cbd5e1;
  border-radius: 9px;
  background: #fff;
  color: var(--ink);
}

input,
select {
  min-height: 40px;
  padding: 8px 10px;
}

textarea {
  width: 100%;
  padding: 11px 12px;
  line-height: 1.7;
  resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
  outline: 3px solid rgb(37 99 235 / 14%);
  border-color: #60a5fa;
}

.privacy-note {
  margin: 22px 0 0 auto;
  color: var(--muted);
  font-size: 0.8rem;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(330px, 460px) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

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

.editor-panel {
  position: sticky;
  top: 16px;
}

.entry-editors {
  display: grid;
  gap: 12px;
  margin-top: 14px;
  max-height: calc(100vh - 260px);
  overflow: auto;
  padding-right: 4px;
}

.editor-card {
  padding: 14px;
  background: #fff;
  border: 1px solid #dde3eb;
  border-radius: 14px;
}

.editor-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.entry-number {
  font-size: 0.82rem;
  font-weight: 800;
  color: #4b5563;
}

.remove-entry {
  padding: 5px 8px;
  background: transparent;
  color: #9f1239;
  font-size: 0.76rem;
}

.editor-card label {
  display: grid;
  gap: 6px;
}

.editor-card label + label {
  margin-top: 10px;
}

.paper-shell {
  overflow: auto;
  margin-top: 14px;
  padding: 18px;
  border-radius: 14px;
  background: #dce3eb;
}

.print-sheet {
  width: 297mm;
  min-height: 210mm;
  margin: 0 auto;
  padding: 7mm;
  background: var(--paper);
  box-shadow: 0 12px 36px rgb(15 23 42 / 18%);
  display: grid;
  grid-template-columns: repeat(2, var(--card-width));
  grid-auto-rows: min-content;
  justify-content: space-between;
  align-content: start;
  gap: 7mm;
}

.renraku-card {
  width: var(--card-width);
  min-height: 34mm;
  padding: 5mm 5.5mm 5.5mm;
  border: 0.3mm dashed #9ca3af;
  background: #fff;
  break-inside: avoid;
  page-break-inside: avoid;
  overflow: hidden;
}

.renraku-header {
  display: flex;
  align-items: baseline;
  justify-content: flex-start;
  gap: 8mm;
  padding-bottom: 2.4mm;
  margin-bottom: 3mm;
  border-bottom: 0.3mm solid #bfc6ce;
}

.renraku-date {
  font-size: 10.5pt;
  font-weight: 800;
  white-space: nowrap;
}

.renraku-message {
  min-height: 16mm;
  font-size: var(--message-font-size);
  line-height: 1.75;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.renraku-message:empty::before {
  content: "ここに入力内容が表示されます";
  color: #a0a7b0;
}

.count-badge {
  padding: 5px 9px;
  border-radius: 999px;
  background: #e8efff;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 800;
}

footer {
  padding: 18px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

footer p {
  margin: 0;
}

@media (max-width: 920px) {
  .app {
    padding: 18px;
  }

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

  .editor-panel {
    position: static;
  }

  .entry-editors {
    max-height: none;
  }

  .preview-panel {
    overflow: hidden;
  }

  .paper-shell {
    padding: 10px;
  }

  .print-sheet {
    transform-origin: top left;
  }

  .privacy-note {
    width: 100%;
    margin: 0;
  }
}

@media print {
  @page {
    size: A4 landscape;
    margin: 0;
  }

  :root {
    background: #fff;
  }

  body,
  .app {
    margin: 0;
    padding: 0;
    background: #fff;
  }

  .no-print,
  footer {
    display: none !important;
  }

  .workspace,
  .preview-panel,
  .paper-shell {
    display: block;
    margin: 0;
    padding: 0;
    background: #fff;
    overflow: visible;
  }

  .print-sheet {
    width: 297mm;
    min-height: 210mm;
    margin: 0;
    padding: 7mm;
    box-shadow: none;
    gap: 7mm;
  }

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