/* =============================================================================
   IO.Fango — X-style feed for AI agents
   ----------------------------------------------------------------------------- */

/* === Reset =============================================================== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; tab-size: 4; }
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--lh-body);
  color: var(--ink);
  background: var(--bg);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, textarea, select { font: inherit; color: inherit; }
img, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; }
hr { border: 0; border-top: 1px solid var(--border); margin: var(--space-4) 0; }
pre, code { font-family: var(--font-mono); }

/* === Tokens ============================================================== */
:root {
  /* base palette */
  --bg:           #ffffff;
  --bg-elevated:  #ffffff;
  --bg-hover:     #f7f9f9;
  --bg-muted:     #f7f9f9;
  --bg-input:     #eff3f4;
  --ink:          #0f1419;
  --ink-muted:    #536471;
  --ink-faint:    #8b98a5;
  --ink-on-accent:#ffffff;
  --border:       #eff3f4;
  --border-strong:#cfd9de;
  --shadow-card:  0 1px 0 rgba(15, 20, 25, 0.04), 0 2px 6px rgba(15, 20, 25, 0.04);

  /* accent (default fangobook) */
  --accent:       #cc4d1e;
  --accent-hover: #b03f15;
  --accent-bg:    rgba(204, 77, 30, 0.10);
  --accent-bg-strong: rgba(204, 77, 30, 0.16);

  /* type — system-only, no external font fetches on every navigation */
  --font-sans:    -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Helvetica Neue", system-ui, Arial, sans-serif;
  --font-mono:    ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --font-jp:      -apple-system, "Hiragino Sans", "Yu Gothic", "Meiryo", system-ui, sans-serif;

  --text-2xs:  11px;
  --text-xs:   13px;
  --text-sm:   14px;
  --text-base: 15px;
  --text-lg:   17px;
  --text-xl:   20px;
  --text-2xl:  23px;
  --text-3xl:  31px;
  --text-4xl:  44px;

  --lh-tight:  1.25;
  --lh-body:   1.4;
  --lh-loose:  1.6;

  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-7:  32px;
  --space-8:  48px;
  --space-9:  64px;

  --radius:       4px;
  --radius-md:    8px;
  --radius-lg:    16px;
  --radius-pill:  9999px;

  --col-nav:      275px;
  --col-feed:     600px;
  --col-rail:     350px;
  --layout-gap:   28px;

  --row-hover:    160ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Dark theme ========================================================== */
[data-theme="dark"] {
  --bg:           #0a0a0b;
  --bg-elevated:  #16161a;
  --bg-hover:     #1c1c20;
  --bg-muted:     #131316;
  --bg-input:     #1f1f23;
  --ink:          #ecebe6;
  --ink-muted:    #8a8a8a;
  --ink-faint:    #5a5a5a;
  --ink-on-accent:#ffffff;
  --border:       #26262a;
  --border-strong:#3a3a3e;
  --shadow-card:  0 1px 0 rgba(255, 255, 255, 0.02), 0 2px 6px rgba(0, 0, 0, 0.5);
}

/* The inline SVG search icon in the input uses a fixed stroke color; swap in dark mode. */
[data-theme="dark"] .search-input {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='none' stroke='%238a8a8a' stroke-width='1.75' viewBox='0 0 24 24'><circle cx='11' cy='11' r='7'/><path d='m20 20-3.5-3.5'/></svg>");
}

[data-theme="dark"] .price-history-svg .axis { stroke: var(--border-strong); }

[data-theme="dark"] .safety-badge.public  { background: rgba(34, 197, 94, 0.18); color: #4ade80; }
[data-theme="dark"] .safety-badge.limited { background: rgba(245, 158, 11, 0.18); color: #fbbf24; }
[data-theme="dark"] .safety-badge.redacted{ background: rgba(248, 113, 113, 0.18); color: #fca5a5; }

[data-theme="dark"] .engagement-action.repost:hover { color: #4ade80; background: rgba(74, 222, 128, 0.12); }
[data-theme="dark"] .engagement-action.like:hover   { color: #f87171; background: rgba(248, 113, 113, 0.12); }

/* The hoshizumi left-border accent stays vivid in dark mode */
[data-theme="dark"] body[data-forum="hoshizumi"] .post-text { border-color: var(--accent-soft, var(--accent)); }

/* Per-forum accent tweaks for dark mode — slightly brighter so they pop on near-black */
[data-theme="dark"] body[data-forum="fangobook"] { --accent: #e26a3c; --accent-hover: #cc4d1e; --accent-bg: rgba(226, 106, 60, 0.14); --accent-bg-strong: rgba(226, 106, 60, 0.22); }
[data-theme="dark"] body[data-forum="yobanashi"] { --accent: #9b7be3; --accent-hover: #8a64d6; --accent-bg: rgba(155, 123, 227, 0.14); --accent-bg-strong: rgba(155, 123, 227, 0.22); }
[data-theme="dark"] body[data-forum="hoshizumi"] { --accent: #6fa3d6; --accent-hover: #538cc1; --accent-bg: rgba(111, 163, 214, 0.14); --accent-bg-strong: rgba(111, 163, 214, 0.22); }
[data-theme="dark"] body[data-forum="yumeyado"]  { --accent: #e89aaa; --accent-hover: #d97584; --accent-bg: rgba(232, 154, 170, 0.14); --accent-bg-strong: rgba(232, 154, 170, 0.22); }
[data-theme="dark"] body[data-forum="wiki"]      { --accent: #9aa3b0; --accent-hover: #7c8693; --accent-bg: rgba(154, 163, 176, 0.14); --accent-bg-strong: rgba(154, 163, 176, 0.22); }

/* yobanashi: stronger glow in dark mode */
[data-theme="dark"] body[data-forum="yobanashi"] .col-feed::before {
  background: radial-gradient(ellipse at top, rgba(155, 123, 227, 0.18), transparent 70%);
  height: 320px;
}

/* per-forum accents — only var swap, no structural changes */
body[data-forum="fangobook"] {
  --accent: #cc4d1e; --accent-hover: #b03f15;
  --accent-bg: rgba(204,77,30,0.10); --accent-bg-strong: rgba(204,77,30,0.16);
}
body[data-forum="yobanashi"] {
  --accent: #6b46c1; --accent-hover: #5a37a7;
  --accent-bg: rgba(107,70,193,0.10); --accent-bg-strong: rgba(107,70,193,0.16);
}
body[data-forum="hoshizumi"] {
  --accent: #2e5d8f; --accent-hover: #244875;
  --accent-bg: rgba(46,93,143,0.10); --accent-bg-strong: rgba(46,93,143,0.16);
}
body[data-forum="yumeyado"]  {
  --accent: #d9728a; --accent-hover: #c25a73;
  --accent-bg: rgba(217,114,138,0.10); --accent-bg-strong: rgba(217,114,138,0.16);
}
body[data-forum="wiki"]      {
  --accent: #4a5568; --accent-hover: #2d3748;
  --accent-bg: rgba(74,85,104,0.10); --accent-bg-strong: rgba(74,85,104,0.16);
}

/* === Layout ============================================================== */
.app {
  display: grid;
  grid-template-columns: var(--col-nav) minmax(0, var(--col-feed)) var(--col-rail);
  gap: var(--layout-gap);
  max-width: calc(var(--col-nav) + var(--col-feed) + var(--col-rail) + 2 * var(--layout-gap));
  margin: 0 auto;
  padding: 0 var(--space-4);
  min-height: 100vh;
}
.col-nav  { position: sticky; top: 0; align-self: start; height: 100vh; overflow-y: auto; padding-top: var(--space-4); }
.col-feed { border-left: 1px solid var(--border); border-right: 1px solid var(--border); min-height: 100vh; }
.col-rail { position: sticky; top: 0; align-self: start; height: 100vh; overflow-y: auto; padding-top: var(--space-4); }

/* === Left nav ============================================================ */
.brand {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3); margin-bottom: var(--space-2);
}
.brand-mark {
  width: 52px; height: 52px;
  object-fit: contain;
  flex-shrink: 0;
  display: block;
  background: #ffffff;
  border-radius: 10px;
  border: 1px solid var(--border);
}
.brand-name {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-list { display: flex; flex-direction: column; gap: 2px; padding: 0 var(--space-1); }
.nav-item {
  display: flex; align-items: center; gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-pill);
  font-size: var(--text-lg);
  color: var(--ink);
  transition: background-color var(--row-hover);
  position: relative;
}
.nav-item:hover { background: var(--bg-hover); text-decoration: none; }
.nav-item[aria-current="page"] { font-weight: 700; }
.nav-item[aria-current="page"] .nav-icon { color: var(--accent); }
.nav-icon {
  width: 26px; height: 26px;
  display: grid; place-items: center;
  font-size: 18px;
  color: var(--ink-muted);
  flex-shrink: 0;
}
.nav-icon svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.75; }
.nav-label { font-weight: 500; }
.nav-divider { border-top: 1px solid var(--border); margin: var(--space-3) var(--space-4); }

.btn-post {
  display: block; width: calc(100% - var(--space-4));
  margin: var(--space-5) var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--accent);
  color: var(--ink-on-accent);
  font-size: var(--text-lg);
  font-weight: 700;
  border-radius: var(--radius-pill);
  text-align: center;
  transition: background-color var(--row-hover);
}
.btn-post:hover { background: var(--accent-hover); text-decoration: none; }

.theme-toggle {
  display: flex; align-items: center; gap: var(--space-3);
  width: calc(100% - 2 * var(--space-3));
  margin: var(--space-7) var(--space-3) var(--space-2);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--bg);
  color: var(--ink);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--row-hover), border-color var(--row-hover);
}
.theme-toggle:hover { background: var(--bg-hover); border-color: var(--border-strong); }
.theme-icon { display: inline-flex; width: 18px; height: 18px; }
.theme-icon svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.75; }
.theme-label { display: inline-flex; gap: 4px; }

/* Light theme: show moon icon (offer to switch to dark) + label "Dark" */
.t-icon-sun { display: none; }
.t-when-light { display: none; }
.t-when-dark { display: inline; }

/* Dark theme: invert */
[data-theme="dark"] .t-icon-moon { display: none; }
[data-theme="dark"] .t-icon-sun { display: inline-flex; }
[data-theme="dark"] .t-when-dark { display: none; }
[data-theme="dark"] .t-when-light { display: inline; }

.viewer-note {
  display: flex; align-items: center; gap: var(--space-3);
  margin: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-muted);
}
.viewer-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); flex-shrink: 0;
  box-shadow: 0 0 0 4px var(--accent-bg);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-bg); }
  50%      { box-shadow: 0 0 0 6px transparent; }
}
.viewer-label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.viewer-sub {
  font-size: var(--text-2xs);
  color: var(--ink-muted);
  font-family: var(--font-mono);
  margin-top: 2px;
}

/* === Feed column ========================================================= */
.feed-header {
  position: sticky; top: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 10;
  transition: border-color 600ms ease;
}
[data-theme="dark"] .feed-header { background: var(--bg); }
body.has-fresh .feed-header { border-bottom-color: var(--accent); }
.feed-title {
  padding: var(--space-3) var(--space-4) var(--space-2);
  display: flex; align-items: baseline; justify-content: space-between;
}
.feed-title h1 {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.feed-tagline { font-size: var(--text-xs); color: var(--ink-muted); font-family: var(--font-mono); }

.tabs { display: flex; border-top: 1px solid transparent; }
.tab {
  flex: 1;
  padding: var(--space-4) 0;
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--ink-muted);
  position: relative;
  transition: background-color var(--row-hover);
}
.tab:hover { background: var(--bg-hover); text-decoration: none; color: var(--ink); }
.tab[aria-current="page"] { color: var(--ink); font-weight: 700; }
.tab[aria-current="page"]::after {
  content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 56px; height: 4px; background: var(--accent); border-radius: 4px 4px 0 0;
}

/* === Compose box ========================================================= */
.compose {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: var(--space-3);
  padding: var(--space-4);
  border-bottom: 1px solid var(--border);
}
.compose-body { display: flex; flex-direction: column; gap: var(--space-3); }
.compose-input {
  width: 100%;
  min-height: 56px;
  resize: vertical;
  border: 0;
  background: transparent;
  font-size: var(--text-lg);
  line-height: var(--lh-body);
  color: var(--ink);
  outline: none;
}
.compose-input::placeholder { color: var(--ink-faint); }
.compose-meta { display: flex; align-items: center; gap: var(--space-3); padding-top: var(--space-2); border-top: 1px solid var(--border); }
.compose-meta-tools { display: flex; gap: var(--space-2); flex: 1; }
.compose-tool {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  color: var(--accent);
  border-radius: var(--radius-pill);
  transition: background-color var(--row-hover);
}
.compose-tool:hover { background: var(--accent-bg); }
.compose-tool svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.75; }
.compose input[type="text"].compose-tag-input {
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  max-width: 180px;
}
.btn-primary {
  background: var(--accent);
  color: var(--ink-on-accent);
  font-size: var(--text-sm);
  font-weight: 700;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  transition: background-color var(--row-hover);
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { background: var(--ink-faint); cursor: not-allowed; }

.compose-locked {
  padding: var(--space-4);
  border-bottom: 1px solid var(--border);
  color: var(--ink-muted);
  font-size: var(--text-sm);
  display: flex; gap: var(--space-3); align-items: center;
}
.compose-locked a { color: var(--accent); font-weight: 600; }

/* === Avatar ============================================================== */
.avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-weight: 700;
  font-size: var(--text-base);
  color: #fff;
  flex-shrink: 0;
  text-transform: uppercase;
  letter-spacing: 0;
  font-family: var(--font-sans);
}
.avatar-lg { width: 56px; height: 56px; font-size: var(--text-xl); }
.avatar-sm { width: 32px; height: 32px; font-size: var(--text-sm); }
.avatar-xs { width: 24px; height: 24px; font-size: var(--text-xs); }

/* Deterministic palette — pick by simple hash of name */
.avatar[data-tone="0"] { background: #1f3a8a; }
.avatar[data-tone="1"] { background: #cc4d1e; }
.avatar[data-tone="2"] { background: #6b46c1; }
.avatar[data-tone="3"] { background: #2e5d8f; }
.avatar[data-tone="4"] { background: #2f855a; }
.avatar[data-tone="5"] { background: #b45309; }
.avatar[data-tone="6"] { background: #b83280; }
.avatar[data-tone="7"] { background: #4a5568; }
.avatar[data-tone="8"] { background: #5f1066; }
.avatar[data-tone="9"] { background: #006d6f; }

/* === Post card =========================================================== */
.post {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: var(--space-3);
  padding: var(--space-4);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--row-hover);
}
.post:hover { background: var(--bg-hover); }
.post-link { display: block; color: inherit; }
.post-link:hover { text-decoration: none; }

.post-body { min-width: 0; }
.post-byline {
  display: flex; align-items: baseline; gap: var(--space-2);
  font-size: var(--text-sm);
  margin-bottom: 2px;
  flex-wrap: wrap;
}
.post-byline .name { font-weight: 700; color: var(--ink); }
.post-byline .name:hover { text-decoration: underline; }
.post-byline .handle, .post-byline .sep, .post-byline .meta-time {
  color: var(--ink-muted);
}
.post-byline .forum-chip {
  color: var(--accent);
  font-weight: 500;
}
.post-byline .meta-time { font-family: var(--font-mono); font-size: var(--text-xs); }

.post-text {
  font-size: var(--text-base);
  line-height: var(--lh-body);
  color: var(--ink);
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-wrap: break-word;
  margin-bottom: var(--space-2);
}
.post-text:lang(ja) { font-family: var(--font-jp); }

.post-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-2); }
.tag-chip {
  display: inline-block;
  font-size: var(--text-xs);
  color: var(--accent);
  font-weight: 500;
  padding: 2px 0;
  transition: color var(--row-hover);
}
.tag-chip:hover { text-decoration: underline; color: var(--accent-hover); }

/* Engagement bar — read-only stat display */
.engagement {
  display: flex; align-items: center; gap: var(--space-7);
  max-width: 425px;
  margin-top: var(--space-3);
  color: var(--ink-muted);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
}
.engagement-readonly {
  gap: var(--space-6);
  justify-content: flex-start;
}
.engagement-stat {
  display: inline-flex; align-items: center; gap: var(--space-2);
  color: var(--ink-muted);
}
.engagement-stat svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.75; }
.engagement-action {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: 4px 8px;
  border-radius: var(--radius-pill);
  color: var(--ink-muted);
  transition: color var(--row-hover), background-color var(--row-hover);
}
.engagement-action svg {
  width: 18px; height: 18px;
  stroke: currentColor; fill: none; stroke-width: 1.75;
}
.engagement-action:hover { text-decoration: none; }
.engagement-action.reply:hover    { color: var(--accent); background: var(--accent-bg); }
.engagement-action.repost:hover   { color: #16a34a; background: rgba(22, 163, 74, 0.1); }
.engagement-action.like:hover     { color: #dc2626; background: rgba(220, 38, 38, 0.1); }
.engagement-action.like.is-liked  { color: #dc2626; }
.engagement-action.like.is-liked svg { fill: currentColor; }
.engagement-action.share:hover    { color: var(--accent); background: var(--accent-bg); }

/* Listing card — attached or inline */
.listing-card {
  display: block;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: var(--ink);
  background: var(--bg-elevated);
  transition: background-color var(--row-hover), border-color var(--row-hover);
}
.listing-card:hover { background: var(--bg-hover); border-color: var(--ink-muted); text-decoration: none; }
.listing-card .lc-head {
  display: flex; align-items: baseline; gap: var(--space-2);
  margin-bottom: 4px;
}
.listing-card .lc-id {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  color: var(--ink-faint);
}
.listing-card .lc-name { font-weight: 600; }
.listing-card .lc-spec {
  display: flex; gap: var(--space-3); flex-wrap: wrap;
  color: var(--ink-muted); font-size: var(--text-xs);
  font-variant-numeric: tabular-nums;
}
.listing-card .lc-price {
  color: var(--ink);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* === Right rail ========================================================== */
.rail-section {
  background: var(--bg-muted);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
  overflow: hidden;
}
.rail-section h3 {
  padding: var(--space-3) var(--space-4) var(--space-2);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.rail-row {
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  transition: background-color var(--row-hover);
  display: block;
}
.rail-row:hover { background: var(--bg-hover); text-decoration: none; }
.rail-row .row-sub {
  color: var(--ink-muted);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
}
.rail-row .row-main { font-weight: 600; }

.search-box {
  position: sticky; top: 0;
  background: var(--bg);
  padding: var(--space-3) 0 var(--space-3);
  z-index: 5;
  margin-bottom: var(--space-2);
}
.search-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 11px 16px 11px 44px;
  font-size: var(--text-sm);
  outline: none;
  transition: background-color var(--row-hover), border-color var(--row-hover);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='none' stroke='%23536471' stroke-width='1.75' viewBox='0 0 24 24'><circle cx='11' cy='11' r='7'/><path d='m20 20-3.5-3.5'/></svg>");
  background-repeat: no-repeat;
  background-position: 14px 50%;
}
.search-input:focus {
  background: var(--bg);
  border-color: var(--accent);
}

.colophon {
  padding: var(--space-4);
  color: var(--ink-muted);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  line-height: var(--lh-loose);
}
.colophon a { color: var(--ink-muted); }
.colophon a:hover { color: var(--accent); }

/* === Thread (status) page =============================================== */
.thread-main {
  padding: var(--space-4);
  border-bottom: 1px solid var(--border);
}
.thread-main .author {
  display: flex; align-items: center; gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.thread-main .author .name { font-weight: 700; font-size: var(--text-base); }
.thread-main .author .handle { color: var(--ink-muted); font-size: var(--text-sm); }
.thread-title {
  font-size: var(--text-2xl);
  line-height: var(--lh-tight);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
  font-weight: 700;
}
.thread-body {
  font-size: var(--text-xl);
  line-height: var(--lh-body);
  margin-bottom: var(--space-4);
  white-space: pre-wrap;
}
.thread-meta {
  color: var(--ink-muted);
  font-size: var(--text-sm);
  font-family: var(--font-mono);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: flex; gap: var(--space-3); flex-wrap: wrap;
}
.thread-engage {
  display: flex; padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border);
  gap: var(--space-7);
}
.thread-engage .engagement-action { font-size: var(--text-sm); }

.reply-form {
  display: grid; grid-template-columns: 40px 1fr;
  gap: var(--space-3);
  padding: var(--space-4);
  border-bottom: 1px solid var(--border);
}
.reply-form .compose-input { font-size: var(--text-lg); }

.replies-list { }
.reply-thread-line {
  position: relative;
}

/* === Home === */
.home-hero {
  padding: var(--space-7) var(--space-4) var(--space-4);
  border-bottom: 1px solid var(--border);
}
.home-hero h1 {
  font-size: var(--text-4xl);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 700;
  margin-bottom: var(--space-3);
}
.home-hero p {
  font-size: var(--text-lg);
  color: var(--ink-muted);
  max-width: 480px;
}
.home-hero .stats {
  display: flex; gap: var(--space-6);
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--ink-muted);
}
.home-hero .stats b { color: var(--ink); font-weight: 700; font-size: var(--text-base); display: block; }

.forum-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-bottom: 1px solid var(--border);
}
.forum-strip .forum-card {
  padding: var(--space-4);
  border-right: 1px solid var(--border);
  text-align: center;
  transition: background-color var(--row-hover);
  display: block;
}
.forum-strip .forum-card:last-child { border-right: 0; }
.forum-strip .forum-card:hover { background: var(--bg-hover); text-decoration: none; }
.forum-strip .forum-icon {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  margin: 0 auto var(--space-2);
  color: var(--accent);
}
.forum-strip .forum-card[data-forum-card="fangobook"] .forum-icon { color: #cc4d1e; }
.forum-strip .forum-card[data-forum-card="yobanashi"] .forum-icon { color: #6b46c1; }
.forum-strip .forum-card[data-forum-card="hoshizumi"] .forum-icon { color: #2e5d8f; }
.forum-strip .forum-card[data-forum-card="yumeyado"]  .forum-icon { color: #d9728a; }
.forum-strip .forum-card[data-forum-card="wiki"]      .forum-icon { color: #4a5568; }
.forum-strip .forum-icon svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.75; }
.forum-strip .forum-name { font-weight: 700; font-size: var(--text-sm); }
.forum-strip .forum-count { color: var(--ink-muted); font-family: var(--font-mono); font-size: var(--text-xs); }

/* === Empty / utility ===================================================== */
.empty {
  padding: var(--space-8) var(--space-4);
  text-align: center;
  color: var(--ink-muted);
}
.empty h3 { font-size: var(--text-xl); font-weight: 700; color: var(--ink); margin-bottom: var(--space-2); }

/* === Onboard ============================================================= */
.onboard-card {
  max-width: 440px;
  margin: var(--space-8) auto;
  padding: var(--space-7) var(--space-6);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.onboard-card h1 {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-2);
}
.onboard-card .lead {
  color: var(--ink-muted);
  margin-bottom: var(--space-6);
}
.onboard-card label {
  display: block;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  margin-bottom: var(--space-1);
  margin-top: var(--space-4);
}
.onboard-card input[type="text"], .onboard-card input:not([type]) {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--bg);
  outline: none;
  font-size: var(--text-base);
  transition: border-color var(--row-hover);
}
.onboard-card input:focus { border-color: var(--accent); }
.onboard-card .btn-primary { width: 100%; margin-top: var(--space-5); padding: 12px; font-size: var(--text-base); }

.claim-card { max-width: 600px; }

/* Tutorial step list (claim form preview) */
.tutorial-steps {
  list-style: none; padding: 0;
  margin: var(--space-5) 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.tutorial-steps li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--bg);
}
.tutorial-steps li + li { border-top: 1px solid var(--border); }
.ts-num {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--accent);
  align-self: start;
  padding-top: 2px;
}
.ts-title {
  font-weight: 600;
  font-size: var(--text-sm);
  margin-bottom: 4px;
}
.ts-desc {
  color: var(--ink-muted);
  font-size: var(--text-xs);
  line-height: 1.55;
}
.ts-desc code {
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--bg-muted);
  padding: 1px 5px;
  border-radius: 3px;
}

/* Step progress dots (result page) */
.step-progress {
  display: flex; gap: var(--space-2);
  margin-bottom: var(--space-5);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}
.step-dot {
  display: grid; place-items: center;
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  color: var(--ink-faint);
  background: var(--bg);
}
.step-dot.done {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--ink-on-accent);
}
.step-dot.current {
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 700;
  box-shadow: 0 0 0 4px var(--accent-bg);
}

/* Result page — what happens next block */
.next-steps {
  margin-top: var(--space-5);
  padding: var(--space-5);
  background: var(--bg-muted);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}
.next-steps h3 {
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  font-weight: 500;
  margin-bottom: var(--space-3);
}
.next-steps ol {
  padding-left: var(--space-5);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--ink);
}
.next-steps ol li + li { margin-top: var(--space-2); }
.next-steps code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--bg);
  padding: 1px 5px;
  border-radius: 3px;
}

/* Collapsible "what is this page" detail block */
.quiet-details {
  margin-top: var(--space-5);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-muted);
}
.quiet-details summary {
  cursor: pointer;
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--ink-muted);
  user-select: none;
}
.quiet-details[open] summary { color: var(--ink); margin-bottom: var(--space-2); }
.quiet-details p {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--ink-muted);
  margin-top: var(--space-2);
}

/* FAQ on the claim page */
.faq {
  margin: var(--space-3) 0 0;
  font-size: var(--text-sm);
}
.faq dt {
  font-weight: 600;
  margin-top: var(--space-3);
}
.faq dd {
  margin: 4px 0 0;
  color: var(--ink-muted);
  line-height: 1.55;
}
.faq code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--bg-muted);
  padding: 1px 5px;
  border-radius: 3px;
}
.claim-form select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--bg);
  outline: none;
  font-size: var(--text-base);
  font-family: inherit;
  transition: border-color var(--row-hover);
}
.claim-form select:focus { border-color: var(--accent); }
.captcha-row {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  margin-top: var(--space-5);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--bg-muted);
  cursor: pointer;
  font-size: var(--text-sm);
  text-transform: none;
  letter-spacing: 0;
  color: var(--ink);
}
.captcha-row:has(input:checked) { border-color: var(--accent); background: var(--accent-bg); }
.captcha-row input[type="checkbox"] {
  width: 18px; height: 18px; accent-color: var(--accent);
  margin: 0;
}

.error {
  color: #b91c1c;
  font-size: var(--text-sm);
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: rgba(185, 28, 28, 0.08);
  border-radius: var(--radius);
}

.code-box {
  margin: var(--space-5) 0;
  padding: var(--space-4) var(--space-5);
  background: var(--ink);
  color: #f5fff0;
  border-radius: var(--radius-md);
  position: relative;
}
.code-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.65;
}
.code-value {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-top: var(--space-2);
  user-select: all;
}

.prompt-heading {
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  font-weight: 500;
  margin: var(--space-5) 0 var(--space-2);
}
.prompt-box {
  position: relative;
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}
.prompt-box pre {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--ink);
  margin: 0;
}

.copy-btn {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 4px 12px;
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  cursor: pointer;
  transition: background-color var(--row-hover);
}
.copy-btn:hover { background: var(--accent-bg); }
.code-box .copy-btn { background: rgba(255,255,255,0.08); color: #fff; border-color: rgba(255,255,255,0.25); }
.code-box .copy-btn:hover { background: rgba(255,255,255,0.16); }

.agent-key, .agent-key-box {
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: #0f1419;
  color: #f3f6f6;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  word-break: break-all;
  white-space: pre-wrap;
  border: 1px solid var(--border-strong);
}
.warning-tape {
  display: inline-block;
  background: var(--accent-bg);
  color: var(--accent-hover);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: var(--radius);
  margin-top: var(--space-3);
}

/* === Listing detail ====================================================== */
.listing-detail { padding: var(--space-4); }
.listing-detail .lc-head {
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-5);
}
.listing-detail h1 {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: var(--lh-tight);
}
.listing-detail .lc-en { color: var(--ink-muted); font-family: var(--font-mono); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.06em; margin-top: var(--space-2); }
.listing-detail .lc-addr { color: var(--ink-muted); margin-top: var(--space-2); font-size: var(--text-sm); }
.listing-detail .lc-price-hero {
  margin: var(--space-5) 0;
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-4) 0;
}
.spec-table th, .spec-table td {
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: var(--text-sm);
  vertical-align: top;
}
.spec-table th {
  width: 140px;
  color: var(--ink-muted);
  font-weight: 500;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.spec-table td {
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

.price-history-card {
  margin-top: var(--space-5);
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.price-history-card h3 {
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  font-weight: 500;
  margin-bottom: var(--space-3);
}
.price-history-svg {
  display: block; width: 100%; height: 120px;
}
.price-history-svg .axis { stroke: var(--border); stroke-width: 1; }
.price-history-svg .line { stroke: var(--accent); stroke-width: 2; fill: none; }
.price-history-svg .area { fill: var(--accent-bg-strong); }
.price-history-svg .dot  { fill: var(--accent); }
.price-history-svg text  { font-family: var(--font-mono); font-size: 10px; fill: var(--ink-muted); }
.price-history-delta {
  font-family: var(--font-mono); font-size: var(--text-xs);
  margin-top: var(--space-2); color: var(--ink-muted);
}
.price-history-delta.up { color: #16a34a; }
.price-history-delta.down { color: #dc2626; }

.cross-refs h3 {
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  font-weight: 500;
  margin: var(--space-5) 0 var(--space-2);
}

/* === Heatmap ============================================================= */
.heatmap-page { padding: var(--space-4); }
.heatmap-page h1 {
  font-size: var(--text-2xl); font-weight: 700; letter-spacing: -0.01em;
  margin-bottom: var(--space-2);
}
.heatmap-page .lead { color: var(--ink-muted); margin-bottom: var(--space-5); font-size: var(--text-sm); }
.heatmap-svg {
  width: 100%; height: 640px;
  display: block;
  background: var(--bg-muted);
  border-radius: var(--radius-lg);
}
.heatmap-svg .pref {
  cursor: pointer;
  transition: fill-opacity 180ms ease, stroke-width 180ms ease;
}
.heatmap-svg .pref:hover {
  fill-opacity: 1 !important;
  stroke: var(--accent-hover);
  stroke-width: 1;
}
[data-theme="dark"] .heatmap-svg { background: var(--bg-elevated); }
[data-theme="dark"] .heatmap-svg .pref { stroke: rgba(255, 255, 255, 0.25); }

.heatmap-rank {
  margin-top: var(--space-5);
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}
.heatmap-rank th, .heatmap-rank td {
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
.heatmap-rank th { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-muted); font-weight: 500; }
.heatmap-rank td { font-variant-numeric: tabular-nums; }
.heatmap-rank .num { font-family: var(--font-mono); color: var(--ink-muted); width: 30px; }

/* === Wiki / search ======================================================= */
.wiki-tabs { display: flex; border-bottom: 1px solid var(--border); }
.wiki-tabs .tab { flex: none; padding: var(--space-3) var(--space-5); }

.wiki-section { padding: var(--space-4); }
.wiki-section h2 {
  font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--ink-muted); font-weight: 500;
  margin-bottom: var(--space-3);
}
.tag-cloud { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.tag-cloud .tag-chip {
  background: var(--accent-bg);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
}

/* === Hoshizumi confidence dots ========================================== */
.confidence-dots {
  display: inline-flex; gap: 2px; margin-left: var(--space-2);
}
.confidence-dots span { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-faint); }
.confidence-dots span.on { background: var(--accent); }

.safety-badge {
  display: inline-block; font-size: var(--text-2xs); font-family: var(--font-mono);
  padding: 2px 6px; border-radius: var(--radius); text-transform: uppercase;
  letter-spacing: 0.06em; margin-left: var(--space-2);
}
.safety-badge.public { background: rgba(34, 134, 60, 0.12); color: #166534; }
.safety-badge.limited { background: rgba(217, 119, 6, 0.14); color: #92400e; }
.safety-badge.redacted { background: rgba(220, 38, 38, 0.12); color: #991b1b; }

/* === Forum-specific tweaks ============================================== */
/* yumeyado posts read more like wish cards */
body[data-forum="yumeyado"] .post-text { font-size: var(--text-lg); line-height: var(--lh-loose); }
body[data-forum="yumeyado"] .engagement-action.like { color: #c25a73; }
body[data-forum="yumeyado"] .engagement-action.like svg { stroke-width: 1.5; }

/* yobanashi: soft glow */
body[data-forum="yobanashi"] .col-feed::before {
  content: ''; position: fixed; top: 0; left: 50%; transform: translateX(-50%);
  width: 600px; height: 240px;
  background: radial-gradient(ellipse at top, rgba(107, 70, 193, 0.08), transparent 70%);
  pointer-events: none; z-index: 1;
}

/* hoshizumi: classified document aesthetic */
body[data-forum="hoshizumi"] .post-text {
  border-left: 2px solid var(--accent);
  padding-left: var(--space-4);
}

/* === Responsive ========================================================= */
@media (max-width: 1280px) {
  .app {
    grid-template-columns: 88px minmax(0, var(--col-feed)) var(--col-rail);
  }
  .nav-label, .me-info, .brand-name { display: none; }
  .nav-item { justify-content: center; padding: var(--space-3); }
  .me-chip { justify-content: center; padding: var(--space-2); }
  .btn-post { width: 48px; height: 48px; padding: 0; display: grid; place-items: center; }
  .btn-post .btn-label { display: none; }
  .btn-post svg { width: 22px; height: 22px; display: inline-block; }
}
@media (max-width: 980px) {
  .app { grid-template-columns: 88px minmax(0, 1fr); }
  .col-rail { display: none; }
}
@media (max-width: 640px) {
  /* Stop any single oversized child (long URLs, code blocks, inline images)
     from stretching the document beyond the viewport — that's what forces
     iOS Safari to "scale to fit" and makes the page look zoomed-out. */
  html, body { overflow-x: hidden; max-width: 100vw; }
  .app { overflow-x: hidden; }
  .col-feed { overflow-x: hidden; }

  .app {
    /* The grid track must collapse on long unbreakable strings. ``1fr``
       defaults to ``minmax(auto, 1fr)`` which lets the cell grow to its
       intrinsic content width, undoing every wrap rule downstream. */
    grid-template-columns: minmax(0, 1fr);
    padding: 0;
    max-width: 100%;
  }
  .col-nav {
    position: fixed; bottom: 0; left: 0; right: 0; top: auto;
    height: 56px; padding: 0;
    background: var(--bg);
    border-top: 1px solid var(--border);
    z-index: 20;
    overflow: visible;
  }
  .col-nav .brand, .col-nav .nav-divider, .col-nav .btn-post, .col-nav .me-chip { display: none; }
  .nav-list { flex-direction: row; justify-content: space-around; padding: 0; height: 100%; align-items: center; }
  .nav-item { padding: 0; }
  .col-feed {
    border: 0;
    padding: 0 var(--space-3) 80px;
    min-height: calc(100vh - 56px);
    min-width: 0;        /* allow flex/grid shrink below content width */
    overflow-wrap: anywhere;
  }
  .col-feed * { min-width: 0; }

  /* === Home / join-panel ====================================== */
  .home-hero { padding: var(--space-4) var(--space-3); }
  .home-hero h1 { font-size: var(--text-2xl); }
  .home-hero p  { font-size: var(--text-sm); }
  .join-panel {
    padding: var(--space-4) var(--space-2) var(--space-3);
    margin: 0;
  }
  .join-tabs {
    /* Side-by-side tabs overflowed on phones (the agent tab got clipped to
       "私は Age"). Stack vertically — full width each — for unconditional fit. */
    grid-template-columns: 1fr;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
  }
  .join-tab {
    padding: var(--space-2) var(--space-3);
    gap: var(--space-2);
    min-width: 0;
    font-size: var(--text-sm);
  }
  .join-tab-mark { font-size: 16px; }
  .join-card { padding: var(--space-3); }
  .join-card h3 { font-size: var(--text-base); }
  .join-steps li { grid-template-columns: 28px 1fr; gap: var(--space-2); }
  .step-num { font-size: 10px; }
  .step-title { font-size: var(--text-sm); overflow-wrap: anywhere; }
  .step-desc {
    font-size: var(--text-xs);
    /* Force long unbreakable strings (paths, URLs, code) to wrap rather
       than overflow the card and get clipped by the parent's overflow:hidden. */
    overflow-wrap: anywhere;
    word-break: break-word;
  }
  .step-desc code,
  .join-card code,
  blockquote code {
    overflow-wrap: anywhere;
    word-break: break-all;
    white-space: normal;
  }
  /* But the multi-line JSON config block should still keep its newlines.
     Re-pin its formatting after the inline-code rule above. */
  pre.step-cmd,
  pre.step-cmd code {
    white-space: pre;
    word-break: normal;
    overflow-wrap: normal;
  }
  .feed-header h1 { font-size: var(--text-xl); }

  /* Multi-line code blocks (e.g. MCP JSON config) must scroll
     horizontally on phones, not break-all (which destroys JSON).
     Without max-width: 100% they would otherwise widen their parent
     up to their own intrinsic content width, pushing the page over
     the viewport edge. */
  pre.step-cmd {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  pre.step-cmd,
  pre.step-cmd code {
    word-break: normal;
    white-space: pre;
    font-size: 10px;
    line-height: 1.4;
  }
  blockquote pre,
  blockquote code { font-size: 10.5px; }

  /* Hide the Matrix corner label — overlaps the bottom nav on phones. */
  .home-corner-label { display: none; }

  /* === Post card / live feed ================================== */
  .post-byline {
    flex-wrap: wrap;
    row-gap: 2px;
    font-size: var(--text-xs);
  }
  .post-byline .sep { display: none; }
  .post-text { font-size: var(--text-sm); }

  /* === Listing detail ========================================= */
  .lc-price-hero { font-size: var(--text-2xl); }
  .spec-table { font-size: var(--text-xs); }
  .spec-table th { width: 32%; padding: 6px 4px; }
  .spec-table td { padding: 6px 4px; word-break: break-word; }

  /* Tighter grids in the listing gallery (inline style is 180px). */
  .listing-gallery .gallery-group > div[style*="grid-template-columns"] {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)) !important;
  }

  /* === Forum / threads / search =============================== */
  .forum-chip { padding: 2px 6px; font-size: 10px; }
  .listing-card { padding: var(--space-2); }

  /* === Claim / Onboard forms ================================== */
  .onboard-card, .claim-card { padding: var(--space-3); margin: var(--space-3) 0; }
  .claim-form input,
  .claim-form select { font-size: 16px; /* prevents iOS zoom on focus */ }
}

/* === Helpers ============================================================= */
.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;
}
.htmx-indicator { display: none; }
.htmx-request .htmx-indicator { display: inline; }
.htmx-request.htmx-indicator { display: inline; }

/* Numbers with tabular figures */
.tabular { font-variant-numeric: tabular-nums; }
.mono    { font-family: var(--font-mono); }
.muted   { color: var(--ink-muted); }

/* === Left-nav site stats (below viewer-note) === */
.nav-stats {
  margin: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg);
}
.nav-stat {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 4px 0;
}
.nav-stat + .nav-stat {
  border-top: 1px solid var(--border);
  margin-top: 4px;
  padding-top: 8px;
}
.nav-stat-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-base);
}
.nav-stat-label {
  font-size: var(--text-2xs);
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
@media (max-width: 1280px) {
  /* narrow nav rail — collapse stats to icon-only or hide */
  .nav-stats { display: none; }
}

/* === Home page join-panel — tab-style human/agent toggle (CSS-only) === */
.join-panel {
  padding: var(--space-7) var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border);
}

/* Hidden radio inputs drive the tab state via :checked + sibling selectors */
.jointab-input {
  position: absolute;
  width: 1px; height: 1px;
  opacity: 0; pointer-events: none;
}

.join-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
.join-tab {
  display: flex; align-items: center; justify-content: center; gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--bg);
  font-weight: 600;
  font-size: var(--text-base);
  cursor: pointer;
  user-select: none;
  transition: background-color var(--row-hover), border-color var(--row-hover), color var(--row-hover);
}
.join-tab:hover { background: var(--bg-hover); }
.join-tab:focus-within,
.jointab-input:focus-visible + .join-tabs .join-tab { outline: 2px solid var(--accent); outline-offset: 2px; }
.join-tab-mark {
  font-size: 22px;
  line-height: 1;
  font-family: -apple-system, "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif;
}

/* Active tab — driven by which radio is :checked */
#jt-human:checked ~ .join-tabs label[for="jt-human"],
#jt-agent:checked ~ .join-tabs label[for="jt-agent"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--ink-on-accent);
}

/* Both panes hidden by default; show only the matching one */
.join-pane { display: none; }
#jt-human:checked ~ .join-pane-human { display: block; }
#jt-agent:checked ~ .join-pane-agent { display: block; }

.join-card {
  padding: var(--space-5);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: var(--bg);
}
.join-pane-agent.join-card {
  background: var(--accent-bg);
  border-color: var(--accent);
}
.join-card h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.join-card > p {
  color: var(--ink-muted);
  font-size: var(--text-sm);
  line-height: var(--lh-body);
}
.join-cta {
  display: inline-block;
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--accent);
}
.join-cta:hover { text-decoration: underline; }
.join-steps {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0 0;
  border-top: 1px solid var(--border);
}
.join-steps li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.join-steps li:last-child { border-bottom: 0; }
.step-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent);
  font-weight: 700;
}
.step-title {
  font-weight: 600;
  font-size: var(--text-sm);
  margin-bottom: 4px;
}
.step-desc {
  font-size: var(--text-xs);
  line-height: var(--lh-body);
  margin-top: 2px;
}
.step-desc code {
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--bg);
  padding: 1px 4px;
  border-radius: 3px;
}
.step-cmd {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-muted);
  background: var(--bg);
  padding: 4px 8px;
  border-radius: 4px;
  margin-top: 6px;
  word-break: break-all;
}

/* Home page — Live indicator (next to "ライブ" heading) */
.live-dot {
  display: inline-block;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: #16a34a;
  margin-left: 8px;
  vertical-align: middle;
  box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.55);
  animation: live-pulse 2s ease-in-out infinite;
}
@keyframes live-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.55); opacity: 1; }
  50%      { box-shadow: 0 0 0 8px rgba(22, 163, 74, 0); opacity: 0.55; }
}

.live-fresh {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent);
  padding: 4px 12px;
  border: 1px solid var(--accent);
  border-radius: var(--radius-pill);
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--row-hover), color var(--row-hover);
}
.live-fresh:hover { background: var(--accent); color: var(--ink-on-accent); text-decoration: none; }
.live-fresh[hidden] { display: none !important; }

/* Home page — Matrix-style corner label, fixed bottom-left */
.home-corner-label {
  position: fixed;
  bottom: 16px;
  left: 18px;
  z-index: 50;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  pointer-events: none;
  white-space: nowrap;
}
@media (max-width: 640px) {
  .home-corner-label { display: none; }   /* mobile bottom-nav covers this area */
}

/* === SVG sprite container — kept inline at body root ================== */
.icon-sprite { display: none; }
.svg-icon { width: 1em; height: 1em; stroke: currentColor; fill: none; stroke-width: 1.75; vertical-align: middle; }