:root {
  color-scheme: dark;
  --bg: #12181a;
  --surface: #171d1f;
  --surface-2: #1b2225;
  --accent: #5dcaa5;
  --accent-ink: #04342c;
  --heading: #f5f4f0;
  --muted: #b4b2a9;
  --muted-2: #9c9a93;
  --border: rgba(255, 255, 255, 0.1);
  --danger: #e2897a;
  --radius-card: 12px;
  --radius-control: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--muted);
  font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic",
    sans-serif;
  font-weight: 300;
  line-height: 1.8;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

h1,
h2 {
  color: var(--heading);
  font-weight: 500;
}

h1 {
  font-size: 1.6rem;
  margin-bottom: 0.5em;
}

h2 {
  font-size: 1.1rem;
  margin-top: 2em;
}

section {
  margin-top: 2em;
  padding-top: 1.25em;
  border-top: 1px solid var(--border);
}

a {
  color: var(--accent);
}

/* ロゴ・ヘッダー */
.site-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 20px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--accent);
  flex-shrink: 0;
}

.logo-text {
  color: var(--heading);
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* ランディングページ */
.hero {
  padding: 48px 0 40px;
  border-top: none;
  margin-top: 0;
  text-align: center;
}

.hero h1 {
  font-size: 1.9rem;
  margin-bottom: 0.6em;
}

.hero p {
  max-width: 34em;
  margin: 0 auto 1.6em;
  color: var(--muted);
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 2em;
  padding-top: 1.25em;
  border-top: 1px solid var(--border);
}

@media (max-width: 640px) {
  .features {
    grid-template-columns: 1fr;
  }
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 20px;
}

.feature-card h2 {
  margin-top: 0;
  font-size: 1rem;
}

.feature-card p {
  margin: 0;
  font-size: 0.9rem;
}

.site-footer {
  margin-top: 3em;
  padding-top: 1.5em;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted-2);
  font-size: 0.85rem;
}

/* フォーム */
form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 16px 0;
}

form.filter-form,
form.inline-form {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 10px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--muted-2);
}

label.checkbox {
  flex-direction: row;
  align-items: center;
  gap: 6px;
}

label[hidden] {
  display: none;
}

input,
select,
textarea {
  font: inherit;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  background: var(--surface-2);
  color: var(--heading);
}

input::placeholder,
textarea::placeholder {
  color: var(--muted-2);
}

textarea {
  resize: vertical;
}

button,
.button-primary,
.button-secondary,
.link-button {
  font: inherit;
  cursor: pointer;
}

button,
.button-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: var(--radius-control);
  border: none;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 500;
  align-self: flex-start;
  text-decoration: none;
}

.button-secondary {
  display: inline-flex;
  padding: 8px 16px;
  border-radius: var(--radius-control);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
}

.link-button {
  background: none;
  color: var(--danger);
  border: none;
  padding: 0;
  align-self: auto;
  text-decoration: underline;
}

.label-text {
  display: inline-flex;
  align-items: baseline;
}

.mark-required {
  color: var(--muted-2);
  font-size: 0.7em;
  margin-left: 2px;
}

.errors {
  color: var(--danger);
  background: rgba(226, 137, 122, 0.1);
  border: 1px solid rgba(226, 137, 122, 0.35);
  border-radius: var(--radius-control);
  padding: 10px 14px;
}

/* 表 */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  font-size: 0.9rem;
}

th,
td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  color: var(--muted-2);
  font-weight: 500;
}

td {
  color: var(--muted);
}

dl {
  display: grid;
  grid-template-columns: 8em 1fr;
  gap: 8px 12px;
}

dt {
  color: var(--muted-2);
}

dd {
  margin: 0;
  color: var(--muted);
}

/* 案件一覧 */
.project-list {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 20px;
}

.project-card h2 {
  margin-top: 0;
  color: var(--heading);
}

/* 管理画面 */
.admin-nav {
  display: flex;
  gap: 16px;
  align-items: center;
  padding-bottom: 12px;
  margin-bottom: 12px;
}

.token-url {
  font-family: monospace;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  padding: 10px 12px;
  color: var(--heading);
  word-break: break-all;
}

.note-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.note-list li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 12px 14px;
}

.note-date {
  margin: 0 0 4px;
  font-size: 0.8rem;
  color: var(--muted-2);
}

.note-body {
  margin: 0;
  white-space: pre-wrap;
  color: var(--muted);
}

.note {
  color: var(--muted-2);
  font-size: 0.85rem;
}