/* chan/public/style.css - v1.0.0
 *
 * Tokens copied from website/assets/site.css (which copies the app's theme).
 * Dark is the default; light follows the OS.
 */

:root {
  --bg-app: #121214;
  --bg-panel: #151518;
  --bg-elevated: #1a1a1e;
  --bg-inset: #0f1115;
  --border-subtle: #2d2d34;
  --border-strong: #3f3f46;
  --text-primary: #e2e8f0;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-faint: #64748b;
  --accent: #00a6ef;
  --accent-hover: #39bfff;
  --accent-ink: #1a1a1e;
  --danger: #f87171;

  --font-ui: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --wrap: 920px;
  --radius: 8px;
  --radius-sm: 6px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-app: #f1f5f9;
    --bg-panel: #f8fafc;
    --bg-elevated: #ffffff;
    --bg-inset: #e2e8f0;
    --border-subtle: #cbd5e1;
    --border-strong: #94a3b8;
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --text-faint: #94a3b8;
    --accent: #0082c8;
    --accent-hover: #0069a2;
    --accent-ink: #f8fafc;
    --danger: #b91c1c;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  color-scheme: dark light;
}

body {
  margin: 0;
  padding: 0 env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  background: var(--bg-app);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.55;
  -webkit-text-size-adjust: 100%;
}

.wrap {
  width: min(100% - 32px, var(--wrap));
  margin-inline: auto;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

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

.skip {
  position: absolute;
  left: -9999px;
  top: 8px;
  padding: 8px 12px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
}

.skip:focus {
  left: 8px;
  z-index: 10;
}

/* Masthead ------------------------------------------------------- */

.masthead {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-subtle);
}

.masthead-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 20px;
  padding-block: 10px;
}

.wordmark {
  color: var(--text-primary);
  font-weight: 650;
  letter-spacing: -0.01em;
}

.wordmark:hover {
  color: var(--text-primary);
  text-decoration: none;
}

.board-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 14px;
  font-size: 0.875rem;
}

.board-nav a {
  color: var(--text-muted);
}

.board-nav a:hover {
  color: var(--accent);
}

/* Headings and index --------------------------------------------- */

main {
  padding-block: 28px 40px;
}

.page-title {
  margin: 0 0 6px;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  letter-spacing: -0.02em;
}

.page-lede {
  margin: 0 0 26px;
  max-width: 62ch;
  color: var(--text-muted);
}

.eyebrow,
.crumbs {
  margin: 0 0 6px;
  color: var(--text-muted);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.crumbs {
  text-transform: none;
  letter-spacing: 0;
}

.board-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border-subtle);
}

.board-card a {
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 2px 16px;
  padding: 16px 2px;
  border-bottom: 1px solid var(--border-subtle);
  color: inherit;
}

.board-card a:hover {
  background: var(--bg-panel);
  text-decoration: none;
}

.board-slug {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
}

.board-title {
  font-weight: 600;
}

.board-desc {
  grid-column: 2;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.board-count {
  grid-column: 2;
  color: var(--text-faint);
  font-size: 0.8125rem;
}

/* Board head ----------------------------------------------------- */

.board-head {
  margin-bottom: 22px;
}

.board-head h1 {
  margin: 0 0 8px;
  font-size: clamp(1.5rem, 3.6vw, 2rem);
  letter-spacing: -0.02em;
}

.board-head h1 span {
  color: var(--text-muted);
  font-weight: 500;
}

.board-desc,
.thread-meta {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

/* Buttons -------------------------------------------------------- */

.btn {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--accent-ink);
  font: inherit;
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.3;
  cursor: pointer;
  transition: background-color 120ms ease, border-color 120ms ease;
}

.btn:hover {
  background: var(--accent-hover);
  color: var(--accent-ink);
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.55;
  cursor: default;
}

.btn-quiet {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text-secondary);
  font-weight: 500;
}

.btn-quiet:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.linkbtn {
  padding: 0;
  border: 0;
  background: none;
  color: var(--text-muted);
  font: inherit;
  font-size: 0.8125rem;
  text-decoration: underline;
  cursor: pointer;
}

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

.linkbtn.danger {
  color: var(--danger);
}

/* Report template ------------------------------------------------ */

.template {
  margin: 0 0 22px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  background: var(--bg-panel);
}

.template summary {
  padding: 10px 14px;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
}

.template pre {
  margin: 0;
  padding: 0 14px 14px;
  white-space: pre-wrap;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--text-muted);
}

/* Thread list ---------------------------------------------------- */

.threads {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border-subtle);
}

.thread-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.thumb {
  display: block;
  width: 64px;
  height: 64px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-inset);
}

.thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.thread-subject {
  margin: 0 0 3px;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}

.thread-subject a {
  color: var(--text-primary);
}

.thread-subject a:hover {
  color: var(--accent);
}

.thread-snippet {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9375rem;
  overflow-wrap: anywhere;
}

.thread-meta {
  margin-top: 4px;
  color: var(--text-faint);
  font-size: 0.8125rem;
}

.tag {
  display: inline-block;
  margin-left: 4px;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--bg-inset);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  vertical-align: 2px;
}

.empty {
  padding: 22px 0;
  color: var(--text-muted);
}

.pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 18px;
  font-size: 0.875rem;
}

.pager-note {
  color: var(--text-faint);
}

/* Thread --------------------------------------------------------- */

.thread-head {
  margin-bottom: 10px;
}

.thread-head h1 {
  margin: 0 0 6px;
  font-size: clamp(1.35rem, 3.4vw, 1.8rem);
  line-height: 1.3;
  letter-spacing: -0.015em;
  overflow-wrap: anywhere;
}

.mod-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 10px;
  padding: 8px 10px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-panel);
}

.posts {
  border-top: 1px solid var(--border-subtle);
}

.post {
  padding: 14px 0 18px;
  border-bottom: 1px solid var(--border-subtle);
}

.post:target {
  background: var(--bg-elevated);
  box-shadow: 0 0 0 1px var(--accent);
  border-radius: var(--radius-sm);
  padding-inline: 12px;
}

.post-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  margin-bottom: 8px;
  font-size: 0.8125rem;
  color: var(--text-faint);
}

.post-name {
  color: var(--text-secondary);
  font-weight: 600;
}

.post-no {
  color: var(--text-faint);
}

.post-no:hover {
  color: var(--accent);
}

.post .mod {
  margin-left: auto;
}

.body {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  color: var(--text-primary);
}

.body a {
  overflow-wrap: anywhere;
}

.quote {
  font-weight: 600;
}

.locked-note {
  margin-top: 20px;
  padding: 14px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-panel);
  color: var(--text-muted);
}

/* Images --------------------------------------------------------- */

.shots {
  display: grid;
  gap: 8px;
  margin: 10px 0 12px;
}

.shots--multi {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.shot img {
  display: block;
  max-width: 100%;
  max-height: 70vh;
  width: auto;
  height: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-inset);
}

.shots--multi .shot img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

/* Forms ---------------------------------------------------------- */

.post-form {
  margin-top: 24px;
  padding: 18px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  background: var(--bg-panel);
}

.post-form h2 {
  margin: 0 0 14px;
  font-size: 1.0625rem;
}

.post-form.dropping {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.field {
  display: block;
  margin-bottom: 12px;
}

.field > span {
  display: block;
  margin-bottom: 4px;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.field em {
  color: var(--text-faint);
  font-style: normal;
  font-weight: 400;
}

input[type='text'],
input[type='password'],
input:not([type]),
textarea {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-inset);
  color: var(--text-primary);
  font: inherit;
  font-size: 0.9375rem;
}

textarea {
  min-height: 8rem;
  resize: vertical;
  line-height: 1.5;
}

input:focus,
textarea:focus {
  border-color: var(--accent);
}

input:disabled {
  opacity: 0.6;
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.images {
  margin: 4px 0 16px;
  padding: 12px;
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-sm);
}

.image-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
}

.hint {
  color: var(--text-faint);
  font-size: 0.8125rem;
}

.previews {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.previews:empty {
  display: none;
}

.preview {
  padding: 5px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-app);
}

.preview img {
  display: block;
  width: 120px;
  height: 84px;
  object-fit: cover;
  border-radius: 4px;
}

.preview-remove {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 2px 0;
  border: 0;
  background: none;
  color: var(--text-muted);
  font: inherit;
  font-size: 0.75rem;
  text-decoration: underline;
  cursor: pointer;
}

.preview-remove:hover {
  color: var(--danger);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
}

.cf-turnstile {
  margin: 4px 0 14px;
}

.errors {
  margin: 0 0 12px;
  color: var(--danger);
  font-size: 0.875rem;
  font-weight: 500;
}

.error-line + .error-line {
  margin-top: 2px;
}

/* Footer --------------------------------------------------------- */

.foot {
  padding-block: 20px 34px;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-faint);
  font-size: 0.8125rem;
}

.foot p {
  margin: 0 0 6px;
}

/* Narrow screens ------------------------------------------------- */

@media (max-width: 620px) {
  .wrap {
    width: min(100% - 24px, var(--wrap));
  }

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

  .board-desc,
  .board-count {
    grid-column: 1;
  }

  .thread-row {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 10px;
  }

  .thumb {
    width: 48px;
    height: 48px;
  }

  .shots--multi .shot img {
    height: 130px;
  }

  .post-form {
    padding: 14px;
  }

  main {
    padding-block: 20px 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}