/* 最小限のスタイル。見た目の作り込みはステップ7で行う */
:root {
  --bg: #fbf8f3;
  --fg: #2b2620;
  --muted: #6f665b;
  --line: #e2d9cc;
  --card: #ffffff;
  --accent: #b5532c;
  --ok: #2f6b3a;
  --error: #a3322a;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1d1a17;
    --fg: #ece5da;
    --muted: #a99f92;
    --line: #3a342d;
    --card: #26221e;
    --accent: #e08a5f;
    --ok: #7fc28a;
    --error: #f08b80;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.7;
}

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

.site-header,
main,
.site-footer {
  max-width: 44rem;
  margin: 0 auto;
  padding: 1rem;
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: baseline;
  border-bottom: 1px solid var(--line);
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
}

.brand {
  font-weight: 700;
  font-size: 1.2rem;
  text-decoration: none;
  color: var(--fg);
}

.site-footer {
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--line);
  margin-top: 3rem;
}

h1 {
  font-size: 1.6rem;
  line-height: 1.3;
}

h2 {
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}

code {
  overflow-wrap: anywhere;
}

.stack {
  display: grid;
  gap: 1rem;
}

label {
  display: grid;
  gap: 0.25rem;
  font-weight: 600;
}

input {
  font: inherit;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--card);
  color: var(--fg);
  width: 100%;
}

button,
.button-link {
  font: inherit;
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  text-decoration: none;
  justify-self: start;
}

.card,
.code-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}

.code {
  font-size: 1.4rem;
  margin: 0;
}

.notice {
  border-left: 4px solid var(--line);
  padding: 0.5rem 1rem;
  background: var(--card);
}

.notice.ok {
  border-color: var(--ok);
}

.notice.error {
  border-color: var(--error);
}

.feed-name code {
  color: var(--muted);
}

small {
  font-weight: 400;
  color: var(--muted);
}

fieldset {
  margin: 0;
}

legend {
  font-weight: 700;
  padding: 0 0.25rem;
}

textarea {
  font: 0.9rem/1.5 ui-monospace, SFMono-Regular, Consolas, monospace;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
  width: 100%;
  resize: vertical;
}

input[aria-invalid="true"] {
  border-color: var(--error);
}

button.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

details > summary {
  cursor: pointer;
  font-weight: 600;
}

details[open] > summary {
  margin-bottom: 0.75rem;
}

.checks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}

label.check,
.segmented label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 400;
}

label.check input,
.segmented input {
  width: auto;
}

.tag-table {
  display: grid;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.25rem 1rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--line);
}

.tag-row:last-child {
  border-bottom: 0;
}

.segmented {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.errors {
  color: var(--error);
  margin: 0;
  padding-left: 1.25rem;
}

.errors:empty {
  display: none;
}

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

/* ---------------------------------------------------------------------------
   ステップ7: 画面（タイムライン・タグ・状態確認・このサービスについて・ランディング）
   モチーフは、お土産屋さんの絵はがきスタンド
   --------------------------------------------------------------------------- */

:root {
  --paper: #fffdf8;
  --stamp: #2f6f73;
  --shadow: 0 1px 2px rgb(60 40 20 / 0.08), 0 4px 14px rgb(60 40 20 / 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #2a2622;
    --stamp: #7cc3c7;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.4);
  }
}

.site-header,
.site-footer {
  max-width: 72rem;
}

main.wide {
  max-width: 72rem;
}

.site-header {
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.logo {
  color: var(--accent);
  flex: none;
}

.lang-switch {
  display: flex;
  gap: 0.75rem;
  font-size: 0.9rem;
}

.lang-switch [aria-current] {
  color: var(--muted);
}

.site-footer p {
  margin: 0.25rem 0;
}

.page-head h1 {
  margin-bottom: 0.25rem;
}

.page-head p {
  color: var(--muted);
  margin-top: 0;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  margin: 0;
}

.note {
  color: var(--muted);
  font-size: 0.9rem;
}

.empty {
  color: var(--muted);
  padding: 2rem 0;
}

/* 絞り込み */
.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 0.75rem 1rem;
  margin: 1rem 0 1.5rem;
}

.filters label {
  min-width: 12rem;
}

select {
  font: inherit;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--card);
  color: var(--fg);
}

/* 絵はがき */
.postcards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr));
  gap: 1.25rem;
}

.postcard {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1rem 1.1rem 1.1rem;
  box-shadow: var(--shadow);
  min-width: 0;
}

.postcard::before {
  /* 絵はがきの宛名面の区切り線のような飾り */
  content: "";
  position: absolute;
  inset: 0.45rem;
  border: 1px dashed var(--line);
  border-radius: 2px;
  pointer-events: none;
}

.postcard > * {
  position: relative;
}

.postcard-head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 0.5rem;
}

.blog-name {
  font-size: 0.85rem;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.stamp {
  flex: none;
  font: 700 0.7rem/1 ui-monospace, SFMono-Regular, Consolas, monospace;
  letter-spacing: 0.05em;
  color: var(--stamp);
  border: 2px solid var(--stamp);
  border-radius: 3px;
  padding: 0.3rem 0.35rem;
  transform: rotate(4deg);
}

.postcard-title {
  font-size: 1.1rem;
  line-height: 1.45;
  margin: 0;
  overflow-wrap: anywhere;
}

.postcard-title a {
  color: var(--fg);
  text-decoration: none;
}

.postcard-title a:hover,
.postcard-title a:focus-visible {
  text-decoration: underline;
}

.excerpt {
  margin: 0;
  color: var(--fg);
  opacity: 0.85;
  font-size: 0.95rem;
  overflow-wrap: anywhere;
}

.postcard-foot {
  margin-top: auto;
  display: grid;
  gap: 0.5rem;
}

.postcard .meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.postcard .actions .button-link {
  font-size: 0.9rem;
  padding: 0.45rem 0.85rem;
}

.button-link.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
}

.chip {
  display: inline-flex;
  align-items: baseline;
  gap: 0.25rem;
  font-size: 0.85rem;
  padding: 0.15rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--fg);
  text-decoration: none;
}

.chip:hover,
.chip:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.chip .count {
  color: var(--muted);
  font-size: 0.8em;
}

.chip.empty {
  opacity: 0.55;
}

.more {
  text-align: center;
  margin: 2rem 0;
}

/* タグ別の名簿 */
.roster {
  margin-top: 2.5rem;
}

.roster-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 16rem), 1fr));
  gap: 0.5rem 1.5rem;
}

.roster-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--line);
  overflow-wrap: anywhere;
}

.roster-rss {
  font-size: 0.8rem;
}

/* 状態確認 */
.inline-form {
  grid-template-columns: 1fr auto;
  align-items: end;
}

@media (max-width: 36rem) {
  .inline-form {
    grid-template-columns: 1fr;
  }
}

.facts {
  display: grid;
  gap: 0;
  margin: 1rem 0;
}

.facts .row {
  display: grid;
  grid-template-columns: minmax(8rem, 14rem) 1fr;
  gap: 0.25rem 1rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--line);
}

@media (max-width: 36rem) {
  .facts .row {
    grid-template-columns: 1fr;
  }
}

.facts dt {
  color: var(--muted);
  font-size: 0.9rem;
}

.facts dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.badge {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  border: 1px solid currentColor;
}

.badge-active {
  color: var(--ok);
}

.badge-pending {
  color: var(--muted);
}

.badge-paused,
.badge-held,
.badge-rejected {
  color: var(--error);
}

/* このサービスについて */
.prose h2 {
  margin-top: 2rem;
}

.prose pre {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  overflow-x: auto;
  font-size: 0.85rem;
}

/* ランディング */
.home {
  display: grid;
  gap: 2rem;
  padding: 1rem 0 2rem;
}

@media (min-width: 56rem) {
  .home {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
    padding-top: 3rem;
  }
}

.home-intro h1 {
  font-size: 2.4rem;
  margin: 0.5rem 0 0;
}

.home-intro .tagline {
  font-size: 1.15rem;
  color: var(--accent);
  margin-top: 0.25rem;
}

.home-intro .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.home-tags {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow);
}

.home-tags h2 {
  margin-top: 0;
}

.tag-cloud {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0;
}

.tag-cloud .chip {
  font-size: 0.95rem;
  padding: 0.3rem 0.8rem;
}

/* hidden 属性は、display を指定した要素でも必ず隠す */
[hidden] {
  display: none !important;
}

/* ベータ版の表示 */
.beta-badge {
  align-self: center;
  font: 600 0.65rem/1 system-ui, sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 0.2rem 0.45rem;
  margin-left: 0.15rem;
}

.beta-notice {
  border-left-color: var(--accent);
  margin-top: 1.5rem;
}