:root {
  --forest:  #1B4332;
  --forest2: #2D6A4F;
  --forest3: #40916C;
  --earth:   #74512D;
  --sage:    #52796F;
  --gold:    #C9A84C;
  --cream:   #F8F4EE;
  --card:    #FFFFFF;
  --ink:     #1A1A1A;
  --mist:    #6B7B6B;
  --border:  #E0D9CF;
  --red:     #C0553A;

  --section-move:    #2D6A4F;
  --section-food:    #D4792A;
  --section-stay:    #52796F;
  --section-onsen:   #52796F;
  --section-gourmet: #A0522D;
  --section-cost:    #C9A84C;
  --section-reg:     #4A7BA0;
  --section-safety:  #C0553A;

  --radius-card: 12px;
  --radius: 8px;
  --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Hiragino Sans", "Noto Sans JP", "Yu Gothic", sans-serif;
  background: var(--cream);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

/* ── Typography ── */
h1 { font-size: 22px; font-weight: 500; }
h2 { font-size: 18px; font-weight: 500; }
h3 { font-size: 15px; font-weight: 500; }

.logo {
  font-family: "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* ── Header ── */
.app-header {
  background: var(--forest);
  color: #fff;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.app-header .subtitle {
  font-size: 9px;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.5);
  display: block;
  margin-bottom: 1px;
}

.app-header .logo { font-size: 18px; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  text-decoration: none;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--forest2);
  color: #fff;
  border-color: var(--forest2);
}
.btn-primary:hover { background: var(--forest3); }

.btn-gold {
  background: var(--gold);
  color: var(--forest);
  border-color: var(--gold);
}
.btn-gold:hover { opacity: 0.9; }

.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--border);
}
.btn-outline:hover { background: var(--cream); }

.btn-ghost {
  background: transparent;
  color: var(--mist);
  border-color: transparent;
  padding: 6px 10px;
  font-size: 13px;
}
.btn-ghost:hover { color: var(--ink); }

.btn-danger {
  background: transparent;
  color: var(--red);
  border-color: transparent;
  padding: 6px 10px;
  font-size: 13px;
}
.btn-danger:hover { background: #FFF0ED; }

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

/* ── Cards ── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 20px 24px;
}

.plan-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: box-shadow 0.2s;
}
.plan-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.1); }

.plan-card-accent {
  height: 4px;
  background: var(--forest2);
}

.plan-card-body { padding: 16px 20px; }

/* ── Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
}
.badge-published {
  background: #D8EFE4;
  color: var(--forest2);
}
.badge-draft {
  background: #FFF3E0;
  color: #8A6020;
}

/* ── Section card (for published page) ── */
.section-card {
  background: var(--card);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  overflow: hidden;
  margin-bottom: 16px;
}

.section-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  border-left: 4px solid var(--forest2);
  font-size: 15px;
  font-weight: 500;
  color: var(--earth);
}

.section-card-body {
  padding: 16px 20px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink);
}

.section-card-body a {
  color: var(--forest2);
  word-break: break-all;
}

/* Section accent colors */
.accent-move    { border-left-color: var(--section-move); }
.accent-food    { border-left-color: var(--section-food); }
.accent-stay    { border-left-color: var(--section-stay); }
.accent-onsen   { border-left-color: var(--section-onsen); }
.accent-gourmet { border-left-color: var(--section-gourmet); }
.accent-cost    { border-left-color: var(--section-cost); }
.accent-reg     { border-left-color: var(--section-reg); }
.accent-safety  { border-left-color: var(--section-safety); }

/* ── Forms ── */
.form-group { margin-bottom: 14px; }

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--mist);
  margin-bottom: 5px;
  letter-spacing: 0.03em;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  color: var(--ink);
  background: var(--cream);
  transition: border-color 0.15s;
  line-height: 1.6;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--forest2);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(45,106,79,0.15);
}

.btn:focus-visible {
  outline: 2px solid var(--forest2);
  outline-offset: 2px;
}

.accordion-header:focus-visible {
  outline: 2px solid var(--forest2);
  outline-offset: -2px;
}

.form-textarea {
  min-height: 80px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* ── Accordion ── */
.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 6px;
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 14px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  background: var(--cream);
  user-select: none;
  transition: background 0.15s;
}

.accordion-header:hover { background: #EFE9E0; }

.accordion-header.open {
  background: var(--forest);
  color: #fff;
}

.accordion-chevron {
  font-size: 11px;
  transition: transform 0.2s;
  color: var(--mist);
}

.accordion-header.open .accordion-chevron {
  transform: rotate(180deg);
  color: rgba(255,255,255,0.7);
}

.accordion-body {
  padding: 14px;
  background: #fff;
  border-top: 1px solid var(--border);
  display: none;
}

.accordion-body.open { display: block; }

.ai-search-hint {
  font-size: 11px;
  color: var(--mist);
  margin-top: 6px;
  line-height: 1.5;
}

/* ── Hero (published page) ── */
.hero {
  background: var(--forest);
  padding: 36px 24px 44px;
  text-align: center;
  position: relative;
  overflow: hidden;
  color: #fff;
}

.hero-mountain {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  opacity: 0.1;
  pointer-events: none;
}

.hero-label {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.5);
  margin-bottom: 10px;
  font-family: "Hiragino Mincho ProN", "Noto Serif JP", serif;
}

.hero-title {
  font-size: 28px;
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: 10px;
}

.hero-date {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
}

/* ── Cost summary (published page) ── */
.cost-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--cream);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin-top: 12px;
}

.cost-total-label { font-size: 12px; color: var(--mist); }
.cost-total-value { font-size: 15px; color: var(--ink); font-weight: 500; }
.cost-per-label { font-size: 12px; color: var(--mist); text-align: right; }
.cost-per-value { font-size: 24px; font-weight: 500; color: var(--forest2); }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--ink);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  z-index: 9999;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.success { background: var(--forest2); }
.toast.error   { background: var(--red); }

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.modal-overlay.show { opacity: 1; pointer-events: all; }

.modal {
  background: var(--card);
  border-radius: var(--radius-card);
  padding: 28px 32px;
  width: 100%;
  max-width: 520px;
  transform: translateY(12px);
  transition: transform 0.2s;
}
.modal-overlay.show .modal { transform: translateY(0); }

.modal-title {
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 16px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 24px;
}

/* ── Code block (for git command) ── */
.code-block {
  background: #1A1A1A;
  color: #C8E6C9;
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-family: "SF Mono", "Menlo", monospace;
  font-size: 13px;
  line-height: 1.6;
  overflow-x: auto;
  margin: 12px 0;
  word-break: break-all;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--forest2);
  cursor: pointer;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  background: #fff;
  transition: background 0.15s;
}
.copy-btn:hover { background: var(--cream); }

/* ── Layout containers ── */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-content { padding: 28px 0; }

/* ── Dashboard grid ── */
.plan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

/* Tab bar hidden by default on desktop */
.editor-tab-bar { display: none; }

/* ── Editor layout ── */
.editor-wrap {
  display: grid;
  grid-template-columns: 420px 1fr;
  height: calc(100vh - 56px);
  overflow: hidden;
}

.editor-left {
  border-right: 1px solid var(--border);
  overflow-y: auto;
  background: #fff;
}

.editor-right {
  background: #EAE4DB;
  overflow-y: auto;
}

.editor-topbar {
  background: var(--forest);
  color: #fff;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  gap: 12px;
  flex-shrink: 0;
}

.editor-topbar-title {
  font-size: 14px;
  font-weight: 500;
  flex: 1;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.editor-panels {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* Preview frame */
.preview-frame {
  padding: 20px;
}

.preview-toggle {
  display: flex;
  gap: 8px;
  padding: 10px 20px;
  background: #EAE4DB;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.preview-toggle-btn {
  font-size: 12px;
  padding: 8px 14px;
  min-height: 36px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: transparent;
  cursor: pointer;
  color: var(--mist);
  transition: all 0.15s;
}
.preview-toggle-btn.active {
  background: var(--forest2);
  color: #fff;
  border-color: var(--forest2);
}

.preview-inner {
  background: var(--cream);
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--border);
}

.preview-inner.mobile-view {
  max-width: 375px;
  margin: 0 auto;
}

/* ── Responsive — Tablet & Mobile ── */
@media (max-width: 900px) {
  .editor-wrap { grid-template-columns: 1fr; height: auto; }
  .editor-left { border-right: none; border-bottom: 1px solid var(--border); max-height: 55vh; }
  .editor-right { height: auto; overflow: visible; }
}

@media (max-width: 768px) {
  .editor-wrap { display: block; height: auto; overflow: visible; }
  .editor-left, .editor-right { height: auto; overflow: visible; max-height: none; border: none; }

  /* Tab switcher on mobile — override the default display:none */
  .editor-tab-bar {
    display: flex;
    border-bottom: 1px solid var(--border);
    background: #fff;
    position: sticky;
    top: 56px;
    z-index: 50;
  }
  .editor-tab {
    flex: 1;
    padding: 12px;
    text-align: center;
    font-size: 13px;
    font-weight: 500;
    color: var(--mist);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.15s;
  }
  .editor-tab.active {
    color: var(--forest2);
    border-bottom-color: var(--forest2);
  }
  /* Default: show edit panel, hide preview */
  #panel-preview { display: none; }
  /* When preview tab is active */
  .show-preview #panel-edit { display: none; }
  .show-preview #panel-preview { display: block; }

  .plan-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .modal { padding: 20px; }
  .cost-summary { flex-direction: column; align-items: flex-start; gap: 10px; }
}

/* ── Published page specific responsive ── */
@media (min-width: 769px) {
  .published-layout {
    max-width: 800px;
    margin: 0 auto;
    padding: 32px 24px;
  }
  .cost-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
}

@media (max-width: 768px) {
  .published-layout {
    padding: 16px;
  }
  .hero-title { font-size: 22px; }
  .section-card-body { font-size: 15px; }
}

/* ── Utilities ── */
.text-mist { color: var(--mist); }
.text-sm { font-size: 13px; }
.text-xs { font-size: 11px; }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.between { justify-content: space-between; }
.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;
}

/* ── Cost table ── */
.cost-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.cost-table td { padding: 6px 0; }
.cost-table td:last-child { text-align: right; font-weight: 500; }
.cost-table .total-row { border-top: 1px solid var(--border); font-weight: 500; padding-top: 10px; }

/* ── Rule list ── */
.rule-list { list-style: none; padding: 0; }
.rule-list li {
  padding: 6px 0 6px 24px;
  position: relative;
  font-size: 14px;
  border-bottom: 1px solid #F5F0EA;
}
.rule-list li::before {
  position: absolute;
  left: 0;
  color: var(--forest2);
  font-weight: 500;
}

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--mist);
}
.empty-state-icon { font-size: 48px; margin-bottom: 16px; }
.empty-state-title { font-size: 18px; font-weight: 500; color: var(--ink); margin-bottom: 8px; }
.empty-state-desc { font-size: 14px; margin-bottom: 24px; }

/* ── Footer ── */
.app-footer {
  text-align: center;
  padding: 24px;
  font-size: 12px;
  color: var(--mist);
  border-top: 1px solid var(--border);
  margin-top: 40px;
}