:root {
  color-scheme: light;
  --ink: #17201c;
  --muted: #67716c;
  --line: #d8ded5;
  --panel: #ffffff;
  --panel-strong: #f4f7f1;
  --field: #fbfcfa;
  --accent: #386641;
  --accent-strong: #254b2d;
  --amber: #b76e00;
  --red: #a33b32;
  --blue: #315f82;
  --shadow: 0 18px 50px rgba(25, 34, 28, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(56, 102, 65, 0.08), transparent 34%),
    linear-gradient(45deg, rgba(49, 95, 130, 0.08), transparent 28%),
    #eef2ea;
  font-family: "Yu Gothic UI", "Meiryo", system-ui, sans-serif;
}

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

button {
  cursor: pointer;
}

.app-shell {
  display: grid;
  grid-template-columns: 292px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 28px;
  background: #18231d;
  color: #f6f8f1;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: #2f5838;
  border-radius: 8px;
  font-weight: 800;
}

.eyebrow,
.panel-label {
  margin: 0 0 6px;
  color: #7b8d83;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.sidebar .eyebrow,
.sidebar .panel-label {
  color: #aeb9ae;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 26px;
  line-height: 1.05;
}

h2 {
  margin-bottom: 0;
  font-size: 30px;
}

.section-tabs {
  display: grid;
  gap: 8px;
}

.tab,
.filter,
.ghost-button,
.small-button,
.icon-button,
.primary-button {
  border: 0;
  border-radius: 7px;
  transition: transform 0.14s ease, background 0.14s ease, color 0.14s ease;
}

.tab {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 12px 14px;
  color: #dce6dc;
  background: transparent;
  text-align: left;
}

.tab span {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  color: #c9d8c9;
}

.tab.is-active,
.tab:hover {
  background: rgba(255, 255, 255, 0.11);
}

.sidebar-panel {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.sidebar-links {
  display: grid;
  gap: 8px;
}

.sidebar-links a {
  color: #dce6dc;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.06);
}

.sidebar-links a:hover {
  background: rgba(255, 255, 255, 0.11);
}

.sidebar input[type="date"] {
  color: #f6f8f1;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.18);
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
}

.toggle-row input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: auto;
}

.summary-grid div {
  padding: 12px 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.summary-grid span {
  display: block;
  font-size: 24px;
  font-weight: 800;
}

.summary-grid p {
  margin: 2px 0 0;
  color: #c9d8c9;
  font-size: 12px;
}

main {
  min-width: 0;
  padding: 28px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin-bottom: 20px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  width: min(320px, 36vw);
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.search-box input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  height: 42px;
}

.icon-button {
  width: 42px;
  height: 42px;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--line);
  font-size: 19px;
}

.metrics-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.metric {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.74);
}

.metric p {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
}

.metric strong {
  font-size: 24px;
}

.workspace {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.editor,
.content-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.editor {
  display: grid;
  gap: 13px;
  padding: 18px;
  position: sticky;
  top: 18px;
}

.editor-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.editor h3 {
  margin-bottom: 0;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--ink);
  background: var(--field);
}

input,
select {
  height: 40px;
  padding: 0 10px;
}

textarea {
  resize: vertical;
  padding: 10px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.inline {
  display: flex;
  color: var(--ink);
  font-weight: 600;
}

.primary-button {
  height: 44px;
  color: #fff;
  background: var(--accent);
  font-weight: 800;
}

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

.ghost-button,
.small-button {
  padding: 8px 10px;
  color: var(--ink);
  background: var(--panel-strong);
  border: 1px solid var(--line);
}

.content-panel {
  min-height: 540px;
  overflow: hidden;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px;
  border-bottom: 1px solid var(--line);
  background: #f8faf6;
}

.filter {
  padding: 8px 11px;
  color: var(--muted);
  background: transparent;
  border: 1px solid transparent;
}

.filter.is-active {
  color: var(--accent-strong);
  background: #e4eee3;
  border-color: #c4d8c0;
}

.item-list {
  display: grid;
  gap: 10px;
  padding: 14px;
}

.item-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.item-main {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  min-width: 0;
}

.check-cell {
  display: block;
  margin-top: 3px;
}

.check-cell input {
  position: absolute;
  opacity: 0;
}

.check-cell span {
  display: block;
  width: 26px;
  height: 26px;
  border: 2px solid #9cad9a;
  border-radius: 7px;
  background: #f8faf6;
}

.check-cell input:checked + span {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: inset 0 0 0 5px #f8faf6;
}

.item-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.item-name {
  margin-bottom: 4px;
  overflow-wrap: anywhere;
  font-size: 18px;
}

.category-pill,
.condition-badge {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 3px 8px;
  border-radius: 999px;
  white-space: nowrap;
  font-size: 12px;
  font-weight: 800;
}

.category-pill {
  color: var(--blue);
  background: #e6eef3;
}

.condition-badge {
  color: var(--accent-strong);
  background: #e4eee3;
}

.condition-badge.warn {
  color: var(--amber);
  background: #fff1d5;
}

.condition-badge.danger {
  color: var(--red);
  background: #fae1de;
}

.item-meta,
.item-memo {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.item-memo {
  margin-top: 5px;
}

.item-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.delete-button {
  color: var(--red);
}

.maintenance-button.is-active {
  color: var(--amber);
  background: #fff1d5;
  border-color: #efd19a;
}

.empty-state {
  padding: 58px 18px;
  text-align: center;
}

.empty-state p {
  color: var(--muted);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(238, 242, 234, 0.92);
  backdrop-filter: blur(14px);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 22px;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
}

.site-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.site-nav-links a {
  color: var(--muted);
  font-size: 14px;
}

.guide-shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 38px 22px 56px;
}

.guide-hero {
  display: grid;
  gap: 14px;
  max-width: 820px;
  margin-bottom: 28px;
}

.guide-hero h1 {
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.04;
}

.guide-hero p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.guide-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 24px;
  align-items: start;
}

.guide-content,
.guide-aside,
.checklist-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
}

.guide-content {
  padding: 26px;
}

.guide-content h2 {
  margin-top: 34px;
  margin-bottom: 12px;
  font-size: 25px;
}

.guide-content h2:first-child {
  margin-top: 0;
}

.guide-content h3 {
  margin: 22px 0 8px;
}

.guide-content p,
.guide-content li {
  color: #3d4741;
  line-height: 1.8;
}

.guide-content ul,
.guide-content ol {
  padding-left: 1.3rem;
}

.guide-aside {
  position: sticky;
  top: 84px;
  padding: 18px;
}

.guide-aside h2 {
  font-size: 18px;
  margin-bottom: 12px;
}

.guide-aside a {
  display: block;
  color: var(--accent-strong);
  text-decoration: none;
  font-weight: 800;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
}

.guide-aside a:last-child {
  border-bottom: 0;
}

.callout {
  margin: 24px 0;
  padding: 18px;
  border-left: 4px solid var(--accent);
  background: #f4f7f1;
  border-radius: 6px;
}

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

.checklist-panel {
  padding: 18px;
}

.checklist-panel h2 {
  margin-bottom: 12px;
  font-size: 20px;
}

.checklist-panel label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--ink);
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  font-weight: 600;
}

.checklist-panel label:last-child {
  border-bottom: 0;
}

.checklist-panel input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--accent);
}

.page-cta {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.text-button {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  color: var(--accent-strong);
  text-decoration: none;
  border: 1px solid #c4d8c0;
  border-radius: 7px;
  background: #e4eee3;
  font-weight: 800;
}

.text-button.secondary {
  color: var(--ink);
  background: #fff;
  border-color: var(--line);
}

@media (max-width: 1040px) {
  .app-shell,
  .workspace,
  .guide-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .summary-grid {
    margin-top: 0;
  }

  .editor {
    position: static;
  }

  .guide-aside {
    position: static;
  }
}

@media (max-width: 720px) {
  main,
  .sidebar {
    padding: 18px;
  }

  .topbar,
  .topbar-actions,
  .item-card,
  .item-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .topbar {
    display: grid;
  }

  .topbar-actions {
    display: grid;
    grid-template-columns: 1fr 42px 42px;
  }

  .site-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .search-box {
    width: 100%;
  }

  .metrics-row {
    grid-template-columns: 1fr 1fr;
  }

  .item-card {
    grid-template-columns: 1fr;
  }

  .item-actions {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
  }

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

@media (max-width: 480px) {
  .metrics-row,
  .form-grid,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .topbar-actions {
    grid-template-columns: 1fr 42px 42px;
  }
}