/* zuroku — visual-spec.md §2-4 全 token + component styles */

/* ---------- 1. Tokens (§2-4) ---------- */
:root {
  /* Canvas / surface (Claude) */
  --canvas:               #f8f7f1;
  --surface-soft:         #f1eee5;
  --surface-card:         #fffdf7;
  --surface-cream-strong: #e7e1d3;
  --surface-dark:         #181715;
  --surface-ink:          #232826;

  /* Ink (Claude) */
  --ink:         #141413;
  --body:        #3d3d3a;
  --body-strong: #252523;
  --muted:       #6c6a64;
  --muted-soft:  #8e8b82;

  /* Accent (Linear lavender 本家、warm cream canvas + Hiragino Mincho と一貫) */
  --accent:         #5e6ad2;
  --accent-hover:   #7b86e8;
  --accent-pressed: #4651a5;
  --accent-soft:    #e3e6f9;
  --on-accent:      #ffffff;

  /* Hairline */
  --hairline:      #e6dfd8;
  --hairline-soft: #ebe6df;

  /* Semantic */
  --success:      #5db872;
  --success-soft: #e3f1e5;
  --warning:      #d4a017;
  --error:        #c64545;
  --error-soft:   #f6dcd6;

  /* Reaction (like = サービスらしい warm red、bookmark = 明確な青。
   * Linear ディシプリン下では accent が CTA/focus 専用なので、
   * card 上の reactive action は別 token に切り出す) */
  --like:           #e0245e;
  --like-soft:      #fde6ee;
  --bookmark:       #2563eb;
  --bookmark-soft:  #dce5ff;

  /* Fonts */
  /* Hiragino Mincho (macOS) → Yu Mincho (Win 10+) → Noto Serif CJK JP (Linux / Android) →
   * MS Mincho (古 Win) → Times New Roman → serif の順。Times New Roman は CJK glyph を
   * 持たないため、CJK 文字は Noto/MS Mincho まで降りないと sans に fallback して
   * 雰囲気が崩れる (re-review subagent SHOULD 3)。 */
  --font-display: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif CJK JP", "MS Mincho", "Times New Roman", serif;
  --font-sans:    -apple-system, BlinkMacSystemFont,
                  "Hiragino Kaku Gothic ProN", "Hiragino Sans",
                  "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  --font-mono:    ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* Spacing */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* Radius */
  --radius-card:   8px;
  --radius-button: 999px;
  --radius-input:  10px;
  --radius-modal:  14px;

  /* Shadow */
  --shadow-card:  0 1px 0 rgba(20,20,19,.04), 0 10px 28px rgba(35,40,38,.08);
  --shadow-modal: 0 12px 40px rgba(0,0,0,.16);

  /* Layout */
  --max-content: 1100px;
  --max-prose:   720px;
}

/* ---------- 2. Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }
.icon {
  width: 1em;
  height: 1em;
  flex: 0 0 auto;
  stroke-width: 2;
}

html { background: var(--canvas); color: var(--body); }

body {
  font-family: var(--font-sans);
  font-feature-settings: "palt" 1, "pkna" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: 0;
  line-height: 1.7;
  font-size: 16px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.52), rgba(255,255,255,0) 420px),
    var(--canvas);
  color: var(--body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* sticky header + sticky search の組合せで scroll-padding が要る (skip link 着地時) */
html { scroll-padding-top: 88px; }

/* 「本文へ」 skip link (Layout 先頭、Tab で出現)。Lin MUST-1 */
.skip-link {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 1000;
  padding: 10px var(--space-4);
  background: var(--surface-dark);
  color: var(--on-accent);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-input);
  transform: translateY(-200%);
  transition: transform 160ms ease-out;
}
.skip-link:focus, .skip-link:focus-visible {
  transform: translateY(0);
  color: var(--on-accent);
  text-decoration: none;
}

/* prefers-reduced-motion: 全アニメーション短絡 (Lin MUST-3) */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- 3. Type scale ---------- */
.t-display-xl { font-family: var(--font-display); font-size: 48px; font-weight: 400; line-height: 1.15; letter-spacing: 0; }
.t-display-lg { font-family: var(--font-display); font-size: 36px; font-weight: 400; line-height: 1.2; letter-spacing: 0; }
.t-headline   { font-size: 24px; font-weight: 600; line-height: 1.3; letter-spacing: 0; }
.t-card-title { font-size: 18px; font-weight: 600; line-height: 1.35; letter-spacing: 0; }
.t-subhead    { font-size: 16px; font-weight: 500; line-height: 1.5; }
.t-body       { font-size: 16px; font-weight: 400; line-height: 1.7; letter-spacing: 0; }
.t-body-sm    { font-size: 14px; font-weight: 400; line-height: 1.6; letter-spacing: 0; }
.t-caption    { font-size: 13px; font-weight: 500; line-height: 1.4; }
.t-caption-up { font-size: 12px; font-weight: 600; line-height: 1.4; letter-spacing: 0; text-transform: uppercase; }
.t-button     { font-size: 14px; font-weight: 600; line-height: 1.2; }
.t-mono       { font-family: var(--font-mono); font-size: 13px; font-weight: 400; line-height: 1.5; }

/* ---------- 4. Layout shell ---------- */
.site-main {
  flex: 1;
  width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(248, 247, 241, .86);
  border-bottom: 1px solid rgba(20,20,19,.08);
  backdrop-filter: blur(18px);
}
.site-header__inner {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.brand {
  display: inline-flex;
  align-items: center;
  color: var(--ink);
  text-decoration: none;
}
.brand:hover { color: var(--ink); text-decoration: none; }
.brand__logo {
  width: 92px;
  height: auto;
  object-fit: contain;
}
.brand__mark {
  width: 30px;
  height: 28px;
  object-fit: contain;
}
.brand__wordmark {
  width: 82px;
  height: auto;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.nav-link {
  color: var(--body);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0;
}
.nav-link:hover { color: var(--ink); text-decoration: none; }
.nav-icon-link {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  color: var(--body-strong);
  text-decoration: none;
  transition: background-color 140ms ease-out, color 140ms ease-out, transform 140ms ease-out;
}
.nav-icon-link:hover {
  background: var(--surface-soft);
  color: var(--ink);
  text-decoration: none;
  transform: translateY(-1px);
}
.nav-icon-link .icon {
  width: 18px;
  height: 18px;
}

/* user-chip は /settings/api-keys への動線を兼ねる link */
.user-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 6px 12px 6px 6px;
  border-radius: 9999px;
  color: var(--body-strong);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  transition: background-color 140ms ease-out, color 140ms ease-out;
}
.user-chip:hover {
  background: var(--surface-soft);
  color: var(--ink);
  text-decoration: none;
}
.user-chip__avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  /* warm cream canvas に馴染ませる、Discord PNG が透過する余白 (Mincho 世界観に合わせる) */
  background: var(--surface-soft);
  box-shadow: 0 0 0 1px var(--hairline-soft);
}

.site-footer {
  border-top: 1px solid rgba(20,20,19,.08);
  background: rgba(255,255,255,.34);
  margin-top: var(--space-16);
}
.site-footer__inner {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: var(--space-5) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 13px;
}
.footer-link { color: var(--muted); }
.footer-link:hover { color: var(--ink); text-decoration: none; }

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0 var(--space-6);
  height: 40px;
  border-radius: var(--radius-button);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0;
  text-decoration: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background-color 180ms ease-out, color 180ms ease-out, transform 180ms ease-out, border-color 180ms ease-out, box-shadow 180ms ease-out;
}
.btn:hover { text-decoration: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn .icon {
  width: 15px;
  height: 15px;
}

.btn--primary {
  background: var(--surface-ink);
  color: var(--on-accent);
  box-shadow: 0 10px 28px rgba(24,23,21,.18);
}
.btn--primary:hover {
  background: #101312;
  color: var(--on-accent);
  transform: translateY(-1px);
  box-shadow: 0 14px 34px rgba(24,23,21,.22);
}
.btn--primary:active { background: #000; transform: translateY(0); }

.btn--secondary {
  background: rgba(255,255,255,.54);
  color: var(--ink);
  border-color: rgba(20,20,19,.12);
}
.btn--secondary:hover { background: #fff; color: var(--ink); border-color: rgba(20,20,19,.22); }

.btn__mark {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(94,106,210,.16);
}

.btn--danger {
  background: transparent;
  color: var(--error);
  border-color: var(--hairline);
}
.btn--danger:hover { background: var(--error-soft); color: var(--error); }

.link { color: var(--accent); }
.link:hover { color: var(--accent-hover); }

/* form POST 内のテキスト風 button (NoCuratorRole の "ログアウト" 等) */
.logout-inline {
  display: inline;
  margin: 0;
  padding: 0;
  border: 0;
}
.logout-inline__btn {
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  color: var(--accent);
  cursor: pointer;
  text-decoration: none;
}
.logout-inline__btn:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* ---------- 6. Login (§5.2, Claude DNA) ---------- */
.login-hero {
  position: relative;
  min-height: calc(100vh - 64px);
  overflow: hidden;
  isolation: isolate;
  background: var(--surface-dark);
}
.login-hero__visual {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image: url("/hero-archive.webp");
  background-size: cover;
  background-position: center right;
  transform: scale(1.01);
}
.login-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(12,13,12,.78) 0%, rgba(18,18,17,.66) 36%, rgba(18,18,17,.22) 74%, rgba(18,18,17,.1) 100%),
    linear-gradient(180deg, rgba(0,0,0,.08), rgba(0,0,0,.34));
}
.login-hero__inner {
  min-height: calc(100vh - 64px);
  max-width: var(--max-content);
  margin: 0 auto;
  padding: clamp(52px, 7vh, 88px) var(--space-6) clamp(48px, 7vh, 84px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: center;
  gap: var(--space-12);
}
.login-hero__content {
  max-width: 610px;
  color: rgba(255,255,255,.82);
}
.login-hero__eyebrow {
  margin: 0 0 var(--space-5);
  color: rgba(255,255,255,.62);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0;
  text-transform: uppercase;
}
.login-hero__title {
  margin: 0 0 var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  line-height: 1;
}
.login-hero__mark {
  width: 82px;
  height: 77px;
  object-fit: contain;
  flex: 0 0 auto;
}
.login-hero__wordmark {
  width: min(246px, calc(100vw - 138px));
  height: auto;
  object-fit: contain;
}
.login-hero__lead {
  max-width: 560px;
  margin: 0 0 var(--space-6);
  color: rgba(255,255,255,.84);
  font-size: 20px;
  font-weight: 500;
  line-height: 1.75;
}
/* Login の hero actions: 常に CTA → note を縦に並べる (editorial の沈黙、
 * mobile では note の右切れ問題を base で吸収。desktop でも CTA 単独で
 * 視線が落ち着く) */
.login-hero__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-3);
}
.login-hero__cta {
  height: 52px;
  padding: 0 var(--space-8);
  background: #fffdf8;
  color: var(--ink);
}
.login-hero__cta:hover {
  background: #ffffff;
  color: var(--ink);
}
.login-hero__note {
  color: rgba(255,255,255,.72);
  font-family: var(--font-mono);
  font-size: 12px;
}
/* login-hero__panel / __panel-head / __metrics は Login.tsx 撤去済の死にコード。
 * 全 evaluator (Aki MUST-4 / Lin / Ken) 指摘により削除。 */

/* ---------- 7. Timeline (§5.3, Pinterest DNA) ---------- */
.timeline {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: var(--space-12) var(--space-6) var(--space-12);
}
.timeline__header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--hairline-soft);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid rgba(20,20,19,.1);
}
.timeline__intro {
  width: min(720px, 100%);
  min-width: 0;
}

/* 検索フォーム (/search の timeline__header 内 + Timeline 上部 inline) */
.search-form {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-3);
}
/* Timeline 上部に inline で出す用: 控えめサイズ、画面幅に応じて wrap */
.search-form--inline {
  margin-top: var(--space-4);
  max-width: 680px;
}
.search-form--hero {
  width: min(100%, 720px);
}
/* /search ページの hero 内 form は sticky で上に張り付かせる
 * (ux-flow §4.3.6、scroll-padding-top で skip link と衝突しない) */
.search-form--sticky {
  position: sticky;
  top: 64px;
  z-index: 5;
  background: var(--canvas);
  padding-block: var(--space-3);
}
.search-form__input {
  flex: 1 1 auto;
  min-width: 0;
  height: 42px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font-size: 14px;
  font-family: inherit;
}
.search-form__input::placeholder { color: var(--muted-soft); }
.search-form__input:focus { outline: none; }
.search-form__input--main {
  flex-basis: 260px;
}
.search-form__input--tag {
  flex: 0 1 130px;
  font-family: var(--font-mono);
  font-size: 13px;
}
.search-form__rail {
  flex: 1 1 360px;
  min-width: 0;
  height: 46px;
  padding: 0 var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  border: 1px solid rgba(20,20,19,.13);
  border-radius: 9999px;
  background: rgba(255,255,255,.76);
  box-shadow: 0 1px 0 rgba(20,20,19,.02);
  transition: background-color 150ms ease-out, border-color 150ms ease-out, box-shadow 150ms ease-out;
}
.search-form__rail:focus-within {
  background: #fff;
  border-color: transparent;
  box-shadow: 0 0 0 2px var(--accent), 0 10px 26px rgba(35,40,38,.08);
}
.search-form__rail-icon {
  width: 17px;
  height: 17px;
  color: var(--muted);
}
.search-form__rail-icon--tag {
  width: 15px;
  height: 15px;
}
.search-form__divider {
  width: 1px;
  height: 22px;
  background: rgba(20,20,19,.12);
  flex: 0 0 auto;
}
.search-form__input--narrow {
  flex: 0 1 200px;
}

/* タグ編集 UI (settings/projects 行内) */
.tag-editor {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  min-width: 0;
  margin-top: 6px;
}
.tag-editor__label {
  flex: 1 1 auto;
  min-width: 0;
}
.tag-editor__input {
  width: 100%;
  padding: 6px 10px;
  border: 1px solid rgba(20,20,19,.16);
  border-radius: var(--radius-button);
  background: rgba(255,255,255,.78);
  color: var(--ink);
  font-size: 12px;
  font-family: var(--font-mono);
}
.tag-editor__input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  background: #fff;
}
.tag-editor__input[aria-busy="true"] { opacity: .6; pointer-events: none; }
.tag-editor__hint {
  font-size: 11px;
  color: var(--muted);
  font-family: var(--font-mono);
  white-space: nowrap;
  /* input が flex: 1 1 auto で目一杯伸びるとき、hint が押し出されないよう
   * shrink-fix。`未設定` / `N 件` という短文 hint が確実に行末に残る。
   * (re-review subagent NICE N3) */
  flex-shrink: 0;
}

/* タグチップ (card 内 + settings 編集 UI 共通) */
.tag-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 6px;
}
/* card__tags は card__link の外に置かれた tag chips ラッパ。
 * card 内側 padding (.card__body) と揃えて見栄えを保つ。 */
.card__tags {
  margin: 0 var(--space-5) var(--space-5);
}
.tag-chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 9999px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 11px;
  line-height: 1.4;
  font-family: var(--font-mono);
  text-decoration: none;
  max-width: 100%;
}
.tag-chip:hover {
  background: var(--surface-cream-strong);
  color: var(--ink);
  text-decoration: none;
}
.tag-chip__hash {
  opacity: 0.55;
  margin-right: 1px;
}

/* 作品メタページ (/p/:slug): 大きい thumbnail + 動線 (コンテンツ / like / bookmark / 作者) */
.projmeta {
  max-width: var(--max-prose);
  margin: 0 auto;
  padding-bottom: var(--space-10);
}
.projmeta__hero {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--space-6);
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(20,20,19,.1);
}
@media (max-width: 720px) {
  .projmeta__hero { grid-template-columns: 1fr; }
}
.projmeta__thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-card);
  border: 1px solid rgba(20,20,19,.1);
  background: var(--surface-soft);
  object-fit: cover;
}
.projmeta__thumb--placeholder {
  background: linear-gradient(135deg, var(--canvas), rgba(20,20,19,.06));
}
.projmeta__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.projmeta__title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  line-height: 1.25;
  margin: 0;
  color: var(--ink);
}
.projmeta__desc {
  margin: 0;
  color: var(--body);
  line-height: 1.7;
}
.projmeta__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  color: var(--muted);
  font-size: 13px;
  margin: 0;
}
.projmeta__meta-sep { opacity: .55; }
.projmeta__author {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--body-strong);
  text-decoration: none;
  padding: 2px 6px;
  border-radius: 9999px;
}
.projmeta__author:hover {
  background: var(--surface-soft);
  text-decoration: none;
  color: var(--ink);
}
.projmeta__avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--surface-soft);
}
.projmeta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-3);
}
.projmeta__like {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.projmeta__like-glyph {
  width: 16px;
  height: 16px;
  color: var(--muted);
  transition: color 150ms ease-out;
}
.projmeta__like--on .projmeta__like-glyph {
  color: #c64545;
  fill: currentColor;
}
.projmeta__like-count {
  font-family: var(--font-mono);
  font-size: 12px;
  min-width: 1em;
  text-align: right;
}
.projmeta__like[aria-busy="true"] { opacity: 0.6; pointer-events: none; }
/* projmeta__actions 内の .card__bookmark を inline 配置に戻す
 * (card overlay の position:absolute は projmeta__actions では不要)。 */
.projmeta__actions .card__bookmark {
  position: static;
  top: auto;
  right: auto;
}

/* 作者ページ (/u/:username): timeline と同じ grid を使い、header だけ独自 */
.author__header {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid rgba(20,20,19,.1);
}
.author__avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--canvas);
  object-fit: cover;
}
.author__avatar--placeholder {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--canvas), rgba(20,20,19,.08));
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  color: var(--ink);
}
.author__meta {
  flex: 1;
  min-width: 0;
}
.author__eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}
.author__title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--ink);
  margin: 0;
  word-break: break-all;
}
.author__desc {
  margin: var(--space-2) 0 0;
  max-width: 520px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}
.author__counter {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-1);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  flex-shrink: 0;
}
.author__counter span {
  padding: 0 var(--space-3);
  min-height: 26px;
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(20,20,19,.1);
  border-radius: var(--radius-button);
  background: rgba(255,255,255,.44);
}
.timeline__eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  line-height: 1.4;
  text-transform: uppercase;
}
.timeline__title {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 400;
  line-height: 1.15;
  color: var(--ink);
  margin: 0;
  letter-spacing: 0;
}
.timeline__desc {
  margin: var(--space-3) 0 0;
  max-width: 520px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}
.timeline__meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: flex-end;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
}
.timeline__meta span {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-3);
  border: 1px solid rgba(20,20,19,.1);
  border-radius: var(--radius-button);
  background: rgba(255,255,255,.44);
}
.timeline__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  /* visual-spec §6.4: Pinterest 8px gutter で密度感を出す。
   * 上下方向は少し緩めて読みやすさを残す。 */
  column-gap: var(--space-2);
  row-gap: var(--space-4);
}

.pager {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--space-12);
}
.pager__end {
  color: var(--muted);
  font-size: 13px;
  margin: 0;
  padding: var(--space-2) var(--space-4);
  border: 1px solid rgba(20,20,19,.1);
  border-radius: var(--radius-button);
  background: rgba(255,255,255,.42);
}

/* ---------- 8. ProjectCard ---------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: rgba(255,253,247,.78);
  border-radius: var(--radius-card);
  border: 1px solid rgba(20,20,19,.11);
  box-shadow: 0 1px 0 rgba(20,20,19,.02);
  overflow: hidden;
  text-decoration: none;
  color: var(--ink);
  min-width: 0;
  transition: transform 180ms ease-out, background-color 180ms ease-out, border-color 180ms ease-out, box-shadow 180ms ease-out;
}
.card:hover {
  transform: translateY(-3px);
  background: #fff;
  border-color: rgba(20,20,19,.18);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: var(--ink);
}
.card:focus-within {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
/* article > a.card__link でリンク領域を限定 (bookmark button を <a> 内に
 * ネストさせない HTML 妥当性のため、card root を article 化した) */
.card__link {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}
/* :focus-within が card 全体に outline を出すのに任せる。古い browser や
 * :focus-within 非対応環境向けに、card__link 自身の focus-visible でも outline を
 * 出すフォールバックを残す (re-review subagent S3)。 */
.card__link:focus { outline: none; }
.card__link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
/* card__bookmark: card 右上の overlay button */
.card__bookmark {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 2;
  width: 32px;
  height: 32px;
  border-radius: 9999px;
  border: 1px solid rgba(20,20,19,.16);
  background: rgba(255,255,255,.92);
  color: #6c6a64;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background-color 150ms ease-out, color 150ms ease-out, transform 150ms ease-out;
}
.card__bookmark .icon {
  width: 16px;
  height: 16px;
}
.card__bookmark:hover {
  background: #fff;
  color: var(--ink);
  transform: scale(1.05);
}
.card__bookmark:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.card__bookmark--on {
  color: var(--bookmark);
  border-color: rgba(37,99,235,.4);
  background: var(--bookmark-soft);
}
.card__bookmark--on .icon {
  fill: currentColor;
}
.card__bookmark[aria-busy="true"] {
  opacity: 0.5;
  pointer-events: none;
}
.card__thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--surface-soft);
  overflow: hidden;
  border-bottom: 1px solid rgba(20,20,19,.08);
}
.card__badge {
  position: absolute;
  /* private badge は左上に配置。右上は card__bookmark が占有するため
   * 重なりを避ける (re-review Codex Low)。 */
  top: 8px;
  left: 8px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 9999px;
  font-size: 10px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: .08em;
  text-transform: uppercase;
  pointer-events: none;
}
.card__badge--private {
  background: rgba(255,253,247,.9);
  color: var(--body-strong);
  box-shadow: 0 1px 5px rgba(20,20,19,.14), 0 0 0 1px rgba(20,20,19,.14);
}
.card__badge--private::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--muted);
}
.card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.card__thumb-placeholder {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255,253,247,.82), rgba(231,225,211,.55)),
    repeating-linear-gradient(0deg, rgba(20,20,19,.05) 0 1px, transparent 1px 22px),
    var(--surface-soft);
}
.card__thumb-placeholder::before,
.card__thumb-placeholder::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(20,20,19,.12);
  background: rgba(255,255,255,.34);
}
.card__thumb-placeholder::before {
  width: 38%;
  height: 42%;
  right: 10%;
  top: 14%;
}
.card__thumb-placeholder::after {
  width: 38%;
  height: 12%;
  left: 10%;
  bottom: 26%;
  border-color: rgba(94,106,210,.24);
  background: rgba(94,106,210,.1);
  box-shadow: 56px -22px 0 rgba(105,123,90,.1), 112px 8px 0 rgba(20,20,19,.08);
}
.timeline__grid .card:nth-child(3n+2) .card__thumb-placeholder {
  background:
    linear-gradient(145deg, rgba(105,123,90,.16), rgba(94,106,210,.12)),
    repeating-linear-gradient(90deg, rgba(20,20,19,.05) 0 1px, transparent 1px 24px),
    var(--surface-soft);
}
.timeline__grid .card:nth-child(3n+2) .card__thumb-placeholder::before {
  left: 11%;
  right: auto;
  top: 18%;
  width: 38%;
}
.timeline__grid .card:nth-child(3n+2) .card__thumb-placeholder::after {
  left: 44%;
  bottom: 20%;
  box-shadow: -62px -18px 0 rgba(94,106,210,.09), 74px -6px 0 rgba(20,20,19,.07);
}
.timeline__grid .card:nth-child(3n) .card__thumb-placeholder {
  background:
    linear-gradient(125deg, rgba(94,106,210,.13), rgba(20,20,19,.08), rgba(105,123,90,.12)),
    repeating-linear-gradient(0deg, rgba(20,20,19,.05) 0 1px, transparent 1px 18px),
    var(--surface-soft);
}
.timeline__grid .card:nth-child(3n) .card__thumb-placeholder::before {
  right: 8%;
  top: 22%;
  width: 34%;
  height: 38%;
}
.timeline__grid .card:nth-child(3n) .card__thumb-placeholder::after {
  bottom: 24%;
  width: 42%;
  box-shadow: 78px -26px 0 rgba(105,123,90,.11), 34px 18px 0 rgba(94,106,210,.09);
}
.card__body {
  padding: var(--space-4) var(--space-5) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.card__title {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0;
  color: var(--ink);
  /* 2 行固定で footer line を 3 列同 baseline で揃える (title 1 行 card と
   * 2 行 card の高さ揺れを吸収) */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  min-height: calc(17px * 1.35 * 2);
}
.card__desc {
  margin: 0;
  color: var(--body);
  font-size: 13px;
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card__meta {
  margin: 0;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}
.card__avatar {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--surface-soft);
}
.card__avatar--placeholder {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 12px;
  color: var(--ink);
  background: linear-gradient(135deg, var(--surface-soft), var(--surface-cream-strong));
}
.card__author-name {
  color: var(--body-strong);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}
.card__meta-sep {
  color: var(--muted);
  flex: 0 0 auto;
  opacity: .5;
}
.card__date {
  flex: 0 0 auto;
}

/* responsive */
@media (max-width: 860px) {
  .login-hero__inner {
    grid-template-columns: 1fr;
    align-items: end;
  }
  .login-hero__title {
    font-size: 72px;
  }
  .login-hero__mark {
    width: 72px;
    height: 68px;
  }
  .login-hero__wordmark {
    width: min(216px, calc(100vw - 124px));
  }
  .timeline__header {
    align-items: flex-start;
    flex-direction: column;
  }
  .timeline__meta {
    justify-content: flex-start;
  }
}
@media (max-width: 720px) {
  .timeline__grid {
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  }
}
@media (max-width: 480px) {
  .timeline__grid {
    grid-template-columns: 1fr;
    column-gap: var(--space-2);
    row-gap: var(--space-3);
  }
  .site-header__inner {
    padding: var(--space-2) var(--space-3);
    height: 52px;
    gap: var(--space-2);
  }
  .site-nav { gap: var(--space-1); }
  .user-chip__name { display: none; }
  .user-chip { padding: 6px; }
  .nav-icon-link { width: 40px; height: 40px; }
  .login-hero__inner {
    padding: var(--space-12) var(--space-4) var(--space-8);
  }
  .login-hero__content {
    padding-bottom: 0;
  }
  .login-hero__lead {
    font-size: 17px;
  }
  .login-hero__actions {
    align-items: flex-start;
    flex-direction: column;
  }
  .login-hero__note {
    padding-left: var(--space-2);
  }
  .login-hero__title {
    gap: var(--space-3);
  }
  .login-hero__mark {
    width: 54px;
    height: 51px;
  }
  .login-hero__wordmark {
    width: min(166px, calc(100vw - 98px));
  }
  .timeline { padding: var(--space-6) var(--space-4) var(--space-10); }
  .timeline__title { font-size: 34px; }
  .search-form {
    align-items: stretch;
    flex-direction: column;
  }
  .search-form__rail {
    width: 100%;
    flex: 1 1 auto;
    height: auto;
    min-height: 48px;
    border-radius: 18px;
    flex-wrap: wrap;
    padding: var(--space-2) var(--space-3);
  }
  .search-form__input--main,
  .search-form__input--tag {
    height: 34px;
  }
  .search-form__input--main {
    flex: 1 1 calc(100% - 28px);
  }
  .search-form__divider {
    display: none;
  }
  .search-form__rail-icon--tag {
    margin-left: 2px;
  }
  .search-form .btn {
    width: 100%;
  }
  .author__header {
    align-items: flex-start;
    flex-direction: column;
  }
  .author__counter {
    width: 100%;
    align-items: flex-start;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .settings {
    padding: var(--space-6) var(--space-4) var(--space-10);
  }
  .settings__header {
    align-items: stretch;
    flex-direction: column-reverse;
    gap: var(--space-3);
  }
  .keyrow {
    align-items: stretch;
    flex-direction: column;
  }
  .keyrow__head {
    align-items: flex-start;
  }
  .keyrow__actions,
  .settingsproj__actions {
    width: 100%;
    align-items: stretch;
    flex-direction: column;
  }
  .settingsproj__actions .btn,
  .keyrow__actions .btn {
    width: 100%;
  }
  .visibility-toggle {
    width: 100%;
  }
  .visibility-toggle__opt {
    flex: 1;
  }
  .visibility-toggle__opt span {
    width: 100%;
    text-align: center;
  }
  .modal {
    max-height: calc(100vh - 32px);
    overflow: auto;
    padding: var(--space-5);
  }
  .modal__actions {
    align-items: stretch;
    flex-direction: column-reverse;
  }
  .modal__actions .btn {
    width: 100%;
  }
}

/* ---------- 9. Empty / notice / errpage ---------- */
.empty {
  text-align: center;
  padding: var(--space-16) var(--space-6);
  color: var(--muted);
}
.empty__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--body-strong);
  margin: 0 0 var(--space-2);
}
.empty__desc {
  font-size: 14px;
  margin: 0;
}
.empty__actions {
  margin-top: var(--space-6);
  display: flex;
  justify-content: center;
  gap: var(--space-3);
}

/* NoCuratorRole の notice__actions 内に並ぶログアウト form (= submit button を btn--secondary に) */
.logout-form {
  display: inline-flex;
  margin: 0;
  padding: 0;
  border: 0;
}

.notice {
  max-width: var(--max-prose);
  margin: 0 auto;
  padding: var(--space-16) var(--space-6);
  text-align: center;
}
.notice__icon {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  border: 1px solid rgba(20,20,19,.1);
  border-radius: 9999px;
  background: rgba(255,255,255,.58);
  color: var(--muted);
}
.notice__icon .icon {
  width: 24px;
  height: 24px;
}
.notice__title {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: 0;
  margin: 0 0 var(--space-6);
}
.notice__body {
  font-size: 16px;
  color: var(--body);
  margin: 0 0 var(--space-3);
}
.notice__actions {
  margin: var(--space-8) 0 var(--space-4);
}
.notice__hint {
  font-size: 13px;
  color: var(--muted);
}

.errpage {
  max-width: var(--max-prose);
  margin: 0 auto;
  padding: var(--space-16) var(--space-6);
  text-align: center;
}
.errpage__code {
  font-family: var(--font-display);
  font-size: 72px;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0;
  margin: 0 0 var(--space-4);
}
.errpage__headline {
  font-size: 24px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 var(--space-4);
  letter-spacing: 0;
}
.errpage__body {
  font-size: 16px;
  color: var(--body);
  margin: 0 auto var(--space-8);
  max-width: 480px;
}

/* ---------- 10. Settings (§5.4, Linear DNA) ----------
 * API key と Projects で width が揃うよう --max-content に統一。 */
.settings {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: var(--space-8) var(--space-6) var(--space-12);
}
.breadcrumb {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin: 0 0 var(--space-3);
}
.settings__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.settings__title {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: 0;
  margin: 0 0 var(--space-2);
}
.settings__desc {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}

.keylist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.keyrow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5);
  background: rgba(255,253,247,.76);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  transition: background-color 160ms ease-out, border-color 160ms ease-out;
}
.keyrow:hover {
  background: #fffdf7;
  border-color: rgba(20,20,19,.16);
}
.keyrow__main { flex: 1; min-width: 0; }
.keyrow__head {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}
.keyrow__icon {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  color: var(--muted);
}
.keyrow__name {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}
.keyrow__prefix {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
  background: var(--surface-soft);
  padding: 2px var(--space-2);
  border-radius: 4px;
  margin-bottom: var(--space-2);
}
.keyrow__meta {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}
.keyrow__actions {
  flex-shrink: 0;
}

/* Settings sub-nav (API key / プロジェクト)
 * pill background 方式に変更 (旧 border-bottom 方式は active/inactive で
 * 文字の baseline がずれて「視差」が出る指摘あり)。幾何学を全 tab で揃える。 */
.subnav {
  display: inline-flex;
  gap: 2px;
  margin: 0 0 var(--space-5);
  padding: 3px;
  background: var(--surface-soft);
  border-radius: 8px;
}
.subnav__link {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 var(--space-3);
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  border-radius: 6px;
  transition: color .12s, background-color .12s;
}
.subnav__link:hover {
  color: var(--body-strong);
}
.subnav__link--active {
  color: var(--ink);
  background: #fff;
  box-shadow: 0 1px 2px rgba(20,20,19,.06), 0 0 0 1px var(--hairline-soft);
}

/* Settings / projects 専用 */
.settingsproj__thumb {
  width: 56px;
  height: 38px;
  border-radius: 4px;
  object-fit: cover;
  background: var(--surface-soft);
  box-shadow: inset 0 0 0 1px rgba(20,20,19,.08);
}
.settingsproj__thumb--placeholder {
  display: inline-block;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255,253,247,.8), rgba(231,225,211,.72)),
    repeating-linear-gradient(0deg, rgba(20,20,19,.055) 0 1px, transparent 1px 9px);
}
.settingsproj__thumb--placeholder::before,
.settingsproj__thumb--placeholder::after {
  content: "";
  position: absolute;
  background: rgba(255,255,255,.42);
  border: 1px solid rgba(20,20,19,.1);
}
.settingsproj__thumb--placeholder::before {
  width: 42%;
  height: 46%;
  right: 8px;
  top: 6px;
}
.settingsproj__thumb--placeholder::after {
  width: 48%;
  height: 8px;
  left: 7px;
  bottom: 8px;
  background: rgba(94,106,210,.1);
  border-color: rgba(94,106,210,.18);
}
.settingsproj__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
/* .settingsproj__row 直下前提の tag-editor 配置調整。
 * 他 settings サブページで .tag-editor を再利用する場合は .settingsproj__row を
 * 付けないこと (= base の `width: 100%; margin-top: 6px` で inline 配置になる)。
 * (re-review subagent SHOULD S3) */
.settingsproj__row {
  align-items: flex-start;
  flex-wrap: wrap;
}
.settingsproj__row .tag-editor {
  /* flex: 1 0 100% で .settingsproj__row 内で強制改行させ、tag-editor 専用の
   * 1 行を確保 (= action ボタン列の下に full-width)。margin は親 row の gap で
   * 担うので 0 にリセット。 */
  flex: 1 0 100%;
  margin-top: 0;
}
/* share-tokens: tag-editor と同じ「強制改行 full-width」テクで、
 * 権限ヒエラルキー: visibility > tags > tokens の順で下に配置。
 * Linear DNA の dense / 常時表示原則 (subagent design review)。 */
.share-tokens {
  flex: 1 0 100%;
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--hairline-soft);
}
.share-tokens__caption {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 var(--space-2);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}
.share-tokens__count {
  display: inline-flex;
  align-items: center;
  min-width: 18px;
  height: 16px;
  padding: 0 5px;
  border-radius: 8px;
  background: rgba(20,20,19,.08);
  color: var(--body-strong);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
}
.share-tokens__empty {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}
.share-tokens__kbd {
  display: inline-block;
  padding: 0 6px;
  border: 1px solid var(--hairline);
  border-radius: 4px;
  background: var(--surface-soft);
  color: var(--body-strong);
  font-family: var(--font-mono);
  font-size: 11px;
}
.share-tokens__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
}
.share-tokens__item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-3);
  padding: 6px 0;
  font-size: 12px;
  color: var(--body-strong);
  transition: opacity 150ms ease-out;
}
.share-tokens__item[data-status="expired"],
.share-tokens__item[data-status="revoked"] {
  opacity: .55;
  color: var(--muted-soft);
}
.share-tokens__item[data-status="revoked"] .share-tokens__id {
  text-decoration: line-through;
}
.share-tokens__item[aria-busy="true"] {
  opacity: .5;
  pointer-events: none;
}
.share-tokens__id {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink);
  background: var(--surface-soft);
  padding: 1px 6px;
  border-radius: 3px;
  letter-spacing: .02em;
}
.share-tokens__time {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
}
.share-tokens__sep {
  color: rgba(20,20,19,.22);
  margin: 0 2px;
}
.share-tokens__revoke {
  height: 22px;
  padding: 0 8px;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: color 150ms ease-out, background-color 150ms ease-out, border-color 150ms ease-out;
}
.share-tokens__revoke:hover {
  color: var(--error);
  border-color: rgba(198,69,69,.22);
  background: var(--error-soft);
}
.share-tokens__revoke:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.share-tokens__revoke-placeholder {
  color: var(--muted-soft);
  font-size: 11px;
}
.visibility-toggle {
  display: inline-flex;
  border: 1px solid var(--hairline);
  border-radius: 9999px;
  padding: 2px;
  background: var(--surface-soft);
  margin: 0;
}
.visibility-toggle__opt {
  position: relative;
  cursor: pointer;
}
.visibility-toggle__opt input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.visibility-toggle__opt span {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  transition: background .12s, color .12s;
}
/* active state: outline + ink dot (黒塗りは editorial 沈黙を壊すので outline 形式へ。
 * dot は accent (Discord blurple) で「現在の選択」を弱く示す) */
.visibility-toggle__opt input:checked + span {
  background: rgba(255,255,255,.95);
  color: var(--ink);
  box-shadow: 0 1px 2px rgba(20,20,19,.08), 0 0 0 1px rgba(20,20,19,.18) inset;
}
.visibility-toggle__opt input:checked + span::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.visibility-toggle__opt input:focus-visible + span {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.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;
}

/* ---------- 11. Modal ---------- */
.modal-scrim {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: 100;
}
.modal-scrim[hidden] { display: none; }
.modal {
  background: var(--canvas);
  border-radius: var(--radius-modal);
  box-shadow: var(--shadow-modal);
  max-width: 480px;
  width: 100%;
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.modal__title {
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
  letter-spacing: 0;
}
.modal__body {
  font-size: 14px;
  color: var(--body);
  margin: 0;
}
.modal__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.field__label {
  font-size: 13px;
  font-weight: 600;
  color: var(--body-strong);
}
.field__input {
  font: inherit;
  font-size: 14px;
  color: var(--ink);
  background: var(--canvas);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-input);
  padding: 10px var(--space-3);
  transition: border-color 200ms ease-out;
}
.field__input::placeholder { color: var(--muted-soft); }
.field__input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-color: transparent;
}

.callout {
  padding: var(--space-4);
  border-radius: var(--radius-input);
  font-size: 14px;
}
.callout--warn {
  background: var(--error-soft);
  color: var(--error);
}
.callout--warn p { margin: var(--space-2) 0 0; color: var(--body); }

.token-display {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--canvas);
  background: var(--surface-dark);
  padding: var(--space-3);
  border-radius: var(--radius-input);
  word-break: break-all;
  white-space: pre-wrap;
  margin: 0;
}

.form-error {
  font-size: 13px;
  color: var(--error);
  margin: 0;
}

/* ---------- 12. Toast (§5.6) ---------- */
.toast-slot {
  position: fixed;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  width: min(560px, calc(100vw - 32px));
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  z-index: 200;
  pointer-events: none;
}
.toast {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-button);
  font-size: 14px;
  font-weight: 500;
  background: var(--surface-card);
  color: var(--ink);
  box-shadow: var(--shadow-card);
  pointer-events: auto;
  animation: toast-in 200ms ease-out;
  overflow-wrap: anywhere;
}
.toast--leave { animation: toast-out 200ms ease-out forwards; }
.toast--success { background: #e7f4ea; color: #1f6b35; }
.toast--error   { background: var(--error-soft); color: var(--error); }
.toast--info    { background: var(--accent-soft); color: var(--accent-pressed); }
.toast__icon { font-weight: 700; }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes toast-out {
  from { opacity: 1; }
  to   { opacity: 0; }
}

/* ---------- 13. Reduced motion: section 2 で一括宣言済 (Lin MUST-3) ---------- */

/* ---------- 14. Scoped route / visual fixes ---------- */
.brand {
  gap: 7px;
}
.brand__seal {
  width: 17px;
  height: 16px;
  transform: translateY(0.5px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.brand__seal img {
  width: 17px;
  height: 16px;
  object-fit: contain;
}
.brand__name {
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: .01em;
}
.nav-link--pill {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0 10px;
  border: 1px solid rgba(20,20,19,.1);
  border-radius: 9999px;
  background: rgba(255,255,255,.44);
  font-size: 12px;
}

/* visual-spec §3 (display-xl = mincho) と ux-flow §4.3.4 (editorial 沈黙)
 * に揃え、sans + 820 weight 上書きを撤回。warm white で読ませる。 */
.login-hero__title {
  display: block;
  max-width: 760px;
  color: #fffdf7;
  font-family: var(--font-display);
  font-size: clamp(40px, 5.6vw, 64px);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.005em;
  /* widow/orphan 防止 (「す / る。」孤立を防ぐ) */
  text-wrap: balance;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
/* login-hero__system / __artifact / __panel / __system-* は Login.tsx 撤去済の
 * 死にコード (Aki MUST-4 / 全 evaluator 指摘)。一括削除。 */

/* card thumbnail がない時の record preview。装飾は最小に。
 * visual-spec §5.4「screen で texture は editorial の敵」に合わせて
 * 多層 gradient / 線描画 / nth-child 変奏は撤去し、書見台調の静かな
 * placeholder + kicker (CURATOR/PRIVATE) + HTML strong だけに。 */
.card__record-preview {
  position: relative;
  height: 128px;
  padding: var(--space-4);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  border-bottom: 1px solid var(--hairline-soft);
  background: linear-gradient(135deg, var(--surface-soft), var(--surface-cream-strong));
}
.card__record-window,
.card__record-lineart { display: none; }
.card__record-preview .card__record-kicker {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
}
.card__record-preview strong {
  color: var(--ink);
  font-size: 12px;
  letter-spacing: .08em;
}

.settingsproj__thumb--record {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  border: 1px solid rgba(20,20,19,.12);
  background:
    linear-gradient(135deg, rgba(94,106,210,.16), transparent 58%),
    var(--surface-soft);
}
.tag-editor {
  align-items: center;
  margin-top: 8px;
}
.tag-editor__input {
  height: 30px;
}
.tag-editor--empty .tag-editor__label {
  max-width: 360px;
}
.tag-editor--empty .tag-editor__input {
  color: transparent;
}
.tag-editor--empty .tag-editor__input::placeholder {
  color: var(--muted);
}
.tag-editor--empty:focus-within .tag-editor__label {
  max-width: none;
}
.tag-editor--empty:focus-within .tag-editor__input {
  color: var(--ink);
}

@media (max-width: 480px) {
  .nav-link--pill {
    display: none;
  }
  /* mobile では h1 が viewport を溢れていた問題 (evaluator MUST-1) を吸収 */
  .login-hero__title {
    font-size: clamp(24px, 7.2vw, 30px);
    max-width: 100%;
    overflow-wrap: anywhere;
    text-wrap: balance;
    line-height: 1.2;
  }
  .login-hero__lead {
    max-width: 100%;
    overflow-wrap: anywhere;
    font-size: 14px;
    line-height: 1.6;
  }
}

/* ---------- 15. Authenticated route cohesion ---------- */
.nav-link--primary {
  background: var(--surface-ink);
  border-color: var(--surface-ink);
  color: #fffdf7;
}
.nav-link--primary:hover {
  color: #fffdf7;
  background: #141413;
}

.author__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: flex-end;
}
.author {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: var(--space-8) var(--space-6) var(--space-12);
}

.card__body {
  padding-bottom: var(--space-3);
}
.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5) var(--space-4);
  min-width: 0;
  border-top: 1px solid var(--hairline-soft);
}
.card__actions {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}
.card__actions .card__bookmark,
.card__like {
  position: static;
  top: auto;
  right: auto;
  z-index: auto;
  min-width: 32px;
  height: 32px;
  border-radius: 9999px;
  border: 1px solid rgba(20,20,19,.14);
  background: rgba(255,255,255,.76);
  color: var(--body-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 0 8px;
  font-size: 12px;
  font-weight: 650;
  line-height: 1;
  transition: background-color 150ms ease-out, color 150ms ease-out, transform 150ms ease-out;
}
.card__actions .card__bookmark {
  width: 32px;
  padding: 0;
}
.card__like .icon,
.card__actions .card__bookmark .icon {
  width: 15px;
  height: 15px;
}
.card__like:hover,
.card__actions .card__bookmark:hover {
  background: #fff;
  color: var(--ink);
  transform: translateY(-1px);
}
.card__like--on {
  color: var(--like);
  border-color: rgba(224,36,94,.34);
  background: var(--like-soft);
}
.card__like--on .icon {
  fill: currentColor;
}
.card__like[aria-busy="true"] {
  opacity: .5;
  pointer-events: none;
}

/* .settings 自体が --max-content に統一されたため override 不要 */
.settings__eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
  text-transform: uppercase;
}
.settings__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: flex-end;
}
.settingsproj__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
/* SettingsProjects (Linear dense table)
 * 各 row はコンパクトな 2 行: head (title + meta + icon actions) + controls
 * (visibility radio + tag input)。border はなく row 間 hairline で区切る。 */
.settingsproj__list {
  border-bottom: 1px solid var(--hairline-soft);
}
.settingsproj__row {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--hairline-soft);
  transition: background-color 140ms ease-out;
}
.settingsproj__row:last-child { border-bottom: 0; }
.settingsproj__row:hover { background: rgba(255,253,247,.5); }
.settingsproj__head {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.settingsproj__title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}
.settingsproj__title:hover { color: var(--accent); text-decoration: none; }
.settingsproj__title-icon {
  width: 12px; height: 12px; opacity: .5; flex-shrink: 0;
}
.settingsproj__badge {
  display: inline-flex;
  align-items: center;
  height: 18px;
  padding: 0 6px;
  border-radius: 4px;
  background: rgba(20,20,19,.06);
  color: var(--body-strong);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  flex: 0 0 auto;
}
.settingsproj__slug code {
  font-family: var(--font-mono);
  color: var(--muted);
  font-size: 11px;
}
.settingsproj__date {
  color: var(--muted);
  font-size: 11px;
  flex: 0 0 auto;
}
.settingsproj__actions {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
  flex: 0 0 auto;
}
.settingsproj__controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.settingsproj__controls .tag-editor {
  flex: 1 1 220px;
  margin: 0;
}
/* mini button (= text + 小 icon、薄い border、border-radius 弱め)
 * SettingsProjects の共有 / 削除 で使う。「icon だけ」だと action が伝わらない
 * というユーザー指摘を解消、shape も pill ではなく rect で「副次 action」を示す */
.btn--mini {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 28px;
  padding: 0 8px;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  background: transparent;
  color: var(--body-strong);
  font-size: 12px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background-color 140ms ease-out, color 140ms ease-out, border-color 140ms ease-out;
}
.btn--mini .icon { width: 13px; height: 13px; opacity: .7; }
.btn--mini:hover {
  background: var(--surface-soft);
  color: var(--ink);
  border-color: rgba(20,20,19,.2);
}
.btn--mini-danger {
  color: var(--error);
  border-color: rgba(198,69,69,.22);
}
.btn--mini-danger:hover {
  background: var(--error-soft);
  color: var(--error);
  border-color: rgba(198,69,69,.45);
}

/* keyrow prefix と copy button を 1 行に並べる */
.keyrow__prefix-wrap {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: var(--space-2) 0;
}

/* 設定 page 右上の戻り link (= My page へ)、ghost text-link 風 */
.settings__back-link {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 var(--space-2);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  border-radius: 6px;
  transition: color 140ms ease-out, background-color 140ms ease-out;
}
.settings__back-link:hover {
  color: var(--ink);
  background: var(--surface-soft);
}
.projmeta .breadcrumb {
  text-transform: none;
}
.projmeta__thumb--placeholder {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(94,106,210,.13), rgba(105,123,90,.1)),
    repeating-linear-gradient(0deg, rgba(20,20,19,.05) 0 1px, transparent 1px 18px),
    var(--surface-soft);
}
.projmeta__thumb--placeholder::before,
.projmeta__thumb--placeholder::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(20,20,19,.12);
  background: rgba(255,255,255,.34);
}
.projmeta__thumb--placeholder::before {
  width: 42%;
  height: 42%;
  right: 12%;
  top: 18%;
}
.projmeta__thumb--placeholder::after {
  width: 46%;
  height: 16px;
  left: 10%;
  bottom: 32%;
  border-color: rgba(94,106,210,.26);
  background: rgba(94,106,210,.1);
}

@media (max-width: 640px) {
  .settingsproj__head {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }
  .settingsproj__date { margin-left: 0; }
  .settingsproj__actions {
    margin-left: 0;
    width: 100%;
    justify-content: flex-end;
  }
}

@media (max-width: 640px) {
  .author__header,
  .settings__header {
    flex-direction: column;
    align-items: flex-start;
  }
  .author__actions,
  .settings__actions,
  .settingsproj__danger {
    justify-content: flex-start;
  }
  .settingsproj__main {
    grid-template-columns: 58px minmax(0, 1fr);
    gap: var(--space-3);
  }
  .settingsproj__preview,
  .settingsproj__thumb {
    width: 58px;
  }
  .settingsproj__thumb {
    height: 42px;
  }
  .settingsproj__controls {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }
  .settingsproj__controls .btn,
  .settingsproj__controls .visibility-toggle {
    width: 100%;
  }
  .settings__title {
    font-size: 30px;
    line-height: 1.2;
  }
  .settings--projects .settings__title {
    word-break: keep-all;
  }
}

/* ---------- 16. Product surface (tap target / chip 確保) ----------
 * 旧 "cleanup" は section 4 の tap target 44 / user-chip pill を後段で
 * 32 / フラットテキストに上書きしていた。WCAG 2.5.5 / Apple HIG 44pt と
 * visual-spec §5.1 (warm chip) を守るため、上書きを撤回し token に戻す。 */
.site-nav {
  gap: var(--space-2);
}
.user-chip__avatar {
  width: 24px;
  height: 24px;
}

.author {
  padding-top: var(--space-10);
}
.author__header {
  align-items: center;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-8);
}
.author__avatar {
  width: 72px;
  height: 72px;
}
.author__title {
  font-size: 34px;
}
.author__summary {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: var(--space-2) 0 0;
  color: var(--muted);
  font-size: 13px;
}
.author__summary span + span::before {
  content: "";
  display: inline-block;
  width: 3px;
  height: 3px;
  margin: 0 var(--space-3) 2px 0;
  border-radius: 50%;
  background: rgba(20,20,19,.32);
}
.author__tabs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: auto;
  flex-shrink: 0;
  flex-wrap: wrap;
}
/* ux-flow §4.3.3 で要求された nav-chip 化 (tap target 44 + pill border) */
.author__tabs a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 var(--space-4);
  color: var(--body-strong);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--hairline);
  border-radius: 9999px;
  background: rgba(255,255,255,.5);
  transition: background-color 140ms ease-out, color 140ms ease-out, border-color 140ms ease-out;
}
.author__tabs a:hover {
  color: var(--ink);
  background: #fff;
  border-color: rgba(20,20,19,.22);
  text-decoration: none;
}

.card {
  border-color: rgba(20,20,19,.1);
  background: rgba(255,253,247,.66);
}
.card:hover {
  transform: translateY(-2px);
}
.card__body {
  gap: var(--space-2);
}
.card__status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
  text-transform: uppercase;
}
.card__status span:first-child {
  color: var(--muted);
  letter-spacing: 0.08em;
}
.card__status--private span:first-child {
  color: var(--body-strong);
}
.card__status span + span::before {
  content: "/";
  margin-right: 8px;
  color: rgba(20,20,19,.28);
}
.card__actions {
  gap: 10px;
}
.card__actions .card__bookmark,
.card__like {
  width: auto;
  min-width: 0;
  height: 24px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  border-radius: 0;
}
.card__actions .card__bookmark {
  width: auto;
}
.card__like:hover,
.card__actions .card__bookmark:hover {
  background: transparent;
  color: var(--ink);
  transform: none;
}
.card__like--on,
.card__actions .card__bookmark--on {
  background: transparent;
  border-color: transparent;
}
.card__like--on {
  color: var(--like);
}
.card__actions .card__bookmark--on {
  color: var(--bookmark);
}
.card__like--on .icon,
.card__actions .card__bookmark--on .icon {
  fill: currentColor;
}

.projmeta {
  max-width: var(--max-content);
  padding: var(--space-8) var(--space-6) var(--space-12);
}
.projmeta__crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--space-5);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}
.projmeta__crumb a {
  color: var(--body-strong);
  text-decoration: none;
}
.projmeta__crumb a:hover {
  color: var(--ink);
  text-decoration: underline;
}
.projmeta__hero {
  grid-template-columns: minmax(360px, 520px) minmax(0, 1fr);
  align-items: start;
  gap: var(--space-8);
  margin-top: 0;
  padding: var(--space-6) 0 0;
}
.projmeta__preview {
  display: block;
  color: inherit;
  text-decoration: none;
}
.projmeta__thumb {
  box-shadow: 0 1px 0 rgba(20,20,19,.02);
}
.projmeta__body {
  gap: var(--space-4);
}
.projmeta__visibility {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.projmeta__visibility--private {
  color: var(--body-strong);
}
.projmeta__title {
  font-size: 42px;
  line-height: 1.12;
}
.projmeta__desc {
  max-width: 560px;
  font-size: 16px;
}
.projmeta__actions {
  gap: var(--space-4);
}
.projmeta__ogp {
  display: grid;
  grid-template-columns: 128px minmax(0, 1fr);
  gap: var(--space-3);
  max-width: 560px;
  margin-top: var(--space-2);
  padding: var(--space-3);
  border: 1px solid rgba(20,20,19,.1);
  border-radius: var(--radius-card);
  background: rgba(255,253,247,.62);
}
.projmeta__ogp-image {
  aspect-ratio: 1.91 / 1;
  overflow: hidden;
  border-radius: 6px;
  border: 1px solid rgba(20,20,19,.08);
  background: var(--surface-soft);
}
.projmeta__ogp-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.projmeta__ogp-copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.projmeta__ogp-copy p {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
}
.projmeta__ogp-copy strong {
  color: var(--ink);
  font-size: 14px;
  line-height: 1.35;
}
.projmeta__ogp-copy span {
  color: var(--body);
  font-size: 12px;
  line-height: 1.45;
}
.projmeta__ogp-copy code {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 760px) {
  .projmeta {
    padding: var(--space-6) var(--space-4) var(--space-10);
  }
  .projmeta__hero {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  .projmeta__title {
    font-size: 32px;
  }
  .projmeta__ogp {
    grid-template-columns: 1fr;
  }
  .author__tabs {
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-left: 0;
  }
}

/* ---------- 17. Current surface corrections ---------- */
.visibility-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: fit-content;
  min-height: 22px;
  padding: 0 10px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
/* card link hover では underline を出さない (見出し / @user / 日付すべてに波及して
 * 視覚的ノイズになっていた)。card 自体の :hover で shadow / border が動くので
 * affordance は別途確保されている */
.card__link:hover,
.card__link:hover * {
  text-decoration: none;
}

/* curator (= default 「研究部公開」): open / approved の lavender dot */
.visibility-badge--curator {
  color: var(--accent-pressed);
  background: var(--accent-soft);
  border-color: rgba(94,106,210,.22);
}
.visibility-badge--curator::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: .85;
}
/* private: 制限感を出す錆赤 + 🔒 prefix */
.visibility-badge--private {
  color: var(--error);
  background: var(--error-soft);
  border-color: rgba(198,69,69,.28);
}
.visibility-badge--private::before {
  content: "\01F512"; /* U+1F512 LOCK */
  font-family: -apple-system, BlinkMacSystemFont, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
  font-size: 11px;
  letter-spacing: 0;
  line-height: 1;
}
/* public (将来枠): broadcast 感の success green */
.visibility-badge--public {
  color: #2f7a3e;
  background: var(--success-soft);
  border-color: rgba(93,184,114,.32);
}
.visibility-badge--public::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: .85;
}

.timeline__header {
  align-items: flex-start;
}
/* timeline__desc / timeline__meta は表示する (Search / Bookmarks の
 * ページ番号 / 件数 / 説明文の役務を消さない、P-5 / P-6) */
.pager__end {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.card__status {
  align-items: center;
}
.card__status .visibility-badge {
  color: var(--muted);
}
.card__status--private .visibility-badge {
  color: var(--body-strong);
}
.card__status span + span::before {
  content: "";
  margin-right: 0;
}

.projmeta__hero {
  grid-template-columns: 7fr 5fr;
  gap: var(--space-10);
}
.projmeta__preview {
  border-radius: var(--radius-card);
  overflow: hidden;
}
.projmeta__thumb {
  /* visual-spec §5.3 / ux-flow §4.3.2 で hero は 16:9 を要求。
   * 1.91:1 (OG) は ogp プレビュー側 (.projmeta__ogp-image) のみで使う。 */
  aspect-ratio: 16 / 9;
  background: var(--surface-soft);
}
.projmeta__visibility {
  display: flex;
  margin: 0 0 var(--space-1);
}
.projmeta__visibility .visibility-badge {
  min-height: 22px;
  font-size: 11px;
}
.projmeta__actions {
  gap: var(--space-3);
  margin-top: var(--space-2);
}
.projmeta__icon-action {
  min-width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0 var(--space-3);
  border: 1px solid var(--hairline);
  border-radius: 9999px;
  background: rgba(255,255,255,.6);
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  transition: color 150ms ease-out, background-color 150ms ease-out, border-color 150ms ease-out;
}
.projmeta__icon-action:hover {
  background: var(--surface-soft);
  color: var(--ink);
  border-color: rgba(20,20,19,.22);
}
.projmeta__icon-action:hover {
  color: var(--ink);
}
.projmeta__icon-action .icon {
  width: 17px;
  height: 17px;
}
.projmeta__icon-action.card__bookmark {
  position: static;
  width: 32px;
  padding: 0;
}
.projmeta__like--on,
.projmeta__icon-action.card__bookmark--on {
  color: var(--ink);
}
.projmeta__like--on .icon {
  fill: currentColor;
}
.projmeta__like-count {
  color: inherit;
}
.projmeta__ogp {
  display: none;
}

.site-main:has(.login-hero) {
  flex: 1 1 auto;
}
.site-main:has(.login-hero) + .site-footer {
  margin-top: 0;
}
.login-hero {
  /* viewport いっぱいに hero を伸ばす。svh だと Chrome headless で
   * 計算が小さくなり下に warm cream の死領域が出るため vh に統一。 */
  min-height: calc(100vh - 64px);
}
.login-hero__inner {
  min-height: calc(100vh - 64px);
  padding-top: clamp(36px, 5vh, 64px);
  padding-bottom: clamp(36px, 5vh, 64px);
}

@media (max-width: 760px) {
  .projmeta__hero {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  .login-hero,
  .login-hero__inner {
    min-height: auto;
  }
}