/*
 * Fiberblog styles, layered on top of Oat UI (https://oat.ink).
 *
 * Oat styles semantic HTML inside CSS @layers. Rules in this file are
 * un-layered, so they win over Oat without !important. Keep selectors scoped
 * (.prose a, .site-header …) so Oat's component styles stay intact.
 *
 * To rebrand, change the tokens in the first block.
 */

/* ---- Brand tokens (override Oat's theme variables) ---------------------- */
:root {
  --primary: light-dark(#1d3a64, #a8c5f2);
  --primary-foreground: light-dark(#ffffff, #0b1626);
  --ring: light-dark(#1d3a64, #a8c5f2);
  --background: light-dark(#ffffff, #0e131a);
  --card: light-dark(#ffffff, #141b24);
  --faint: light-dark(#f6f7f9, #161e28);
  --muted: light-dark(#eff2f6, #1c2531);
  --accent: light-dark(#eef2f7, #212c39);
  --secondary: light-dark(#eef2f7, #212c39);
  --secondary-foreground: light-dark(#1d3a64, #d6e3f7);
  --border: light-dark(#dde2e9, #2b3644);
  --input: light-dark(#cdd4de, #374456);

  /* Additions used only by this app */
  --highlight: light-dark(#fff0a3, #5a4c10);
  --like: light-dark(#cf2f69, #f28bb0);
  --font-serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  --measure: 42rem;
  --container-max: 1120px;
  --header-h: 3.75rem;
}

/* Explicit theme choice from the toggle (otherwise follow the OS). */
:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] { color-scheme: dark; }

/* ---- Base ---------------------------------------------------------------- */
html { scroll-padding-top: calc(var(--header-h) + 1rem); }
body { min-height: 100dvh; display: flex; flex-direction: column; }
main { flex: 1; width: 100%; padding-block: var(--space-8) var(--space-16); }
::selection { background: var(--highlight); color: inherit; }
:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; }

.i { flex-shrink: 0; vertical-align: -0.15em; }
.grow { flex: 1; min-width: 0; }
.inline-form { display: inline; margin: 0; }
/* Keep modals centred even when they sit inside an Oat .hstack (whose
   utility layer resets child margins). */
dialog { margin: auto; }

.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;
}
.skip-link {
  position: absolute; left: var(--space-4); top: -4rem; z-index: 100;
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-medium);
  background: var(--primary); color: var(--primary-foreground);
}
.skip-link:focus { top: var(--space-2); }

/* ---- Header -------------------------------------------------------------- */
.site-header { padding-inline: 0; min-height: var(--header-h); }
.nav-inner { display: flex; align-items: center; gap: var(--space-3); }
.brand {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-weight: 650; font-size: var(--text-5); letter-spacing: -0.01em;
  color: var(--foreground);
}
.brand .logo, .auth-card .logo { color: var(--primary); }
.logo-mark { fill: var(--primary-foreground); }
.nav-search { flex: 1; max-width: 22rem; margin-inline-start: var(--space-4); }
.nav-search input { margin: 0; padding-block: var(--space-1); background: var(--faint); }
.nav-links { display: flex; align-items: center; gap: var(--space-2); margin-inline-start: auto; }
.nav-links a[aria-current="page"] { background: var(--accent); }
.avatar-button { padding: 0; border: 0; border-radius: var(--radius-full); background: none; }
figure[data-variant="avatar"] abbr { text-decoration: none; font-size: 0.8em; }

.icon-dark { display: none; }
:root[data-theme="dark"] .icon-dark { display: inline; }
:root[data-theme="dark"] .icon-light { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-dark { display: inline; }
  :root:not([data-theme="light"]) .icon-light { display: none; }
}

.user-menu { min-width: 14rem; }
.user-menu-head { display: flex; flex-direction: column; padding: var(--space-3) var(--space-3) var(--space-2); }
.user-menu a[role="menuitem"] { color: var(--foreground); font-size: var(--text-7); }
.user-menu button[role="menuitem"] {
  background: none; color: var(--foreground); border: 0; border-radius: 0;
  font-weight: var(--font-normal);
}
.user-menu form { margin: 0; }

@media (max-width: 640px) {
  .nav-search, .hide-sm, .brand span { display: none; }
}

/* ---- Footer -------------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--border); padding-block: var(--space-6); font-size: var(--text-7); }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-4); }
.footer-inner p { margin: 0; }

/* ---- Home ---------------------------------------------------------------- */
.hero { max-width: 48rem; padding-block: var(--space-6) var(--space-12); }
.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 1.6rem + 3.4vw, 4.25rem);
  line-height: 1.02; letter-spacing: -0.025em; font-weight: 600;
  margin: 0 0 var(--space-5);
  text-wrap: balance;
}
.hero p { font-size: var(--text-4); max-width: 34rem; margin-bottom: var(--space-6); }

.layout-with-aside {
  display: grid; grid-template-columns: minmax(0, 1fr) 17.5rem;
  gap: var(--space-10); align-items: start;
}
.side { display: flex; flex-direction: column; gap: var(--space-4); position: sticky; top: calc(var(--header-h) + var(--space-4)); }
.side .card { padding: var(--space-5); }
.side h4 { margin-top: 0; }
.side fieldset.group input { margin: 0; }
@media (max-width: 960px) {
  .layout-with-aside { grid-template-columns: 1fr; }
  .side { position: static; }
}

.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-3); margin-bottom: var(--space-5); }
.section-head h2 { margin: 0; font-size: var(--text-3); }

/* ---- Post cards ---------------------------------------------------------- */
.post-grid {
  display: grid; gap: var(--space-6);
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 18.5rem), 1fr));
}
.post-card { display: flex; flex-direction: column; padding: 0; overflow: hidden; }
.post-card-cover { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: var(--muted); }
.post-card-cover img { display: block; width: 100%; height: 100%; object-fit: cover; }
.post-card-body { flex: 1; padding: var(--space-5) var(--space-5) 0; }
.post-card-title {
  font-family: var(--font-serif); font-size: 1.3rem; line-height: 1.25;
  letter-spacing: -0.01em; margin: var(--space-3) 0 var(--space-2);
}
.post-card-title a:hover { color: var(--primary); }
.post-card-excerpt {
  font-size: var(--text-7); margin: 0;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.post-card-footer {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
  margin-top: var(--space-5); padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--border);
}

.tag-list { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: 0; padding: 0; list-style: none; }
.tag-list .badge { padding-inline: var(--space-3); }

.byline { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-3); font-size: var(--text-8); color: var(--muted-foreground); }
.byline-author { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--foreground); font-weight: var(--font-medium); }
.byline-author figure[data-variant="avatar"] { --sz: 1.75rem; font-size: var(--text-8); }
.byline-meta, .reading-time { display: inline-flex; align-items: center; gap: var(--space-1); }
.byline-meta { gap: var(--space-3); }
.counts { display: inline-flex; gap: var(--space-3); font-size: var(--text-8); }
.counts > span { display: inline-flex; align-items: center; gap: var(--space-1); }

.pagination { display: flex; justify-content: center; margin-top: var(--space-10); }
.empty-state { text-align: center; padding: var(--space-12) var(--space-6); border-style: dashed; box-shadow: none; }
.empty-state h3 { margin-top: 0; }

/* ---- Page headers -------------------------------------------------------- */
.page-head { margin-bottom: var(--space-8); }
.page-head h1 { font-family: var(--font-serif); letter-spacing: -0.015em; margin: var(--space-2) 0 var(--space-2); }
.page-head p { margin: 0; }
.back-link { display: inline-flex; align-items: center; gap: var(--space-1); font-size: var(--text-7); text-decoration: none; }

.tag-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fill, minmax(12rem, 1fr)); }
.tag-tile { display: flex; flex-direction: column; gap: var(--space-1); padding: var(--space-4) var(--space-5); color: var(--foreground); transition: border-color var(--transition-fast); }
.tag-tile:hover { border-color: var(--primary); }

/* ---- Single post --------------------------------------------------------- */
.post, .author-card, .comments { max-width: var(--measure); margin-inline: auto; }
.post-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.1rem, 1.4rem + 2.6vw, 3.25rem);
  line-height: 1.08; letter-spacing: -0.02em; font-weight: 600;
  margin: var(--space-4) 0 var(--space-4);
  text-wrap: balance;
}
.post-lede { font-family: var(--font-serif); font-size: 1.3rem; line-height: 1.5; margin-bottom: 0; }
.post-meta-row {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
  margin-top: var(--space-6); padding-block: var(--space-3);
  border-block: 1px solid var(--border);
}
.meta-views { display: inline-flex; align-items: center; gap: var(--space-1); font-size: var(--text-8); }
.post-cover { margin: var(--space-8) 0 0; }
.post-cover img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--radius-large); }
@media (min-width: 1000px) { .post-cover { margin-inline: -7rem; } }

.prose { font-family: var(--font-serif); font-size: 1.1875rem; line-height: 1.72; margin-top: var(--space-8); overflow-wrap: break-word; }
.prose :is(p, ul, ol, blockquote, pre, table, figure, dl) { margin: 0 0 1.2em; }
.prose :is(h1, h2, h3, h4, h5, h6) { font-family: var(--font-serif); line-height: 1.25; letter-spacing: -0.01em; margin: 1.9em 0 0.6em; }
.prose h1 { font-size: 1.85em; }
.prose h2 { font-size: 1.55em; }
.prose h3 { font-size: 1.3em; }
.prose h4 { font-size: 1.1em; }
.prose > :first-child { margin-top: 0; }
.prose a { color: var(--primary); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.prose a:hover { text-decoration-thickness: 2px; }
.prose :is(ul, ol) { padding-left: 1.4em; }
.prose li + li { margin-top: 0.35em; }
.prose li:has(> input[type="checkbox"]) { list-style: none; margin-left: -1.4em; }
.prose li > input[type="checkbox"] { margin-right: 0.5em; }
.prose img { max-width: 100%; height: auto; border-radius: var(--radius-medium); }
.prose blockquote { font-size: 1.05em; }
.prose code { font-size: 0.82em; }
.prose pre { font-size: 0.82em; line-height: 1.55; }
.prose table { display: block; overflow-x: auto; width: 100%; border-collapse: collapse; font-family: var(--font-sans); font-size: var(--text-7); }
.prose :is(th, td) { padding: var(--space-2) var(--space-3); border-bottom: 1px solid var(--border); text-align: left; }
.prose th { font-weight: var(--font-semibold); }
.prose hr { width: 30%; margin: 2.5em auto; }
.prose mark { background: var(--highlight); color: inherit; }

.post-actions {
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2);
  margin-top: var(--space-10); padding-top: var(--space-6);
  border-top: 1px solid var(--border);
}
.post-actions .badge { padding: 0 var(--space-2); }
form[data-toggle="like"] button[aria-pressed="true"] {
  --_hov: color-mix(in srgb, var(--like), black 12%);
  background-color: var(--like); color: #fff; border-color: transparent;
}
form[data-toggle] button[aria-pressed="true"] .i { fill: currentColor; }
form[data-toggle="like"] button[aria-pressed="true"] .badge { background: rgb(255 255 255 / 0.22); color: #fff; }

.author-card { display: flex; gap: var(--space-4); align-items: flex-start; margin-top: var(--space-8); }
.author-card h3 { font-family: var(--font-serif); margin: 0 0 var(--space-1); }
.author-card p { margin: 0; }

.comments { margin-top: var(--space-12); }
.comments h2 { font-size: var(--text-3); }
.comment-form { display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-4); margin-bottom: var(--space-8); }
.comment-form-row { display: flex; gap: var(--space-3); align-items: flex-start; }
.comment-form textarea { margin-top: 0; }
.comment-list { display: flex; flex-direction: column; gap: var(--space-6); margin: 0; padding: 0; list-style: none; }
.comment { display: flex; gap: var(--space-3); scroll-margin-top: calc(var(--header-h) + 2rem); }
.comment:target { outline: 2px solid var(--highlight); outline-offset: 8px; border-radius: var(--radius-small); }
.comment-body { flex: 1; min-width: 0; }
.comment-head { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-2); font-size: var(--text-7); }
.comment-head .badge { padding-block: 0; }
.comment-text { white-space: pre-wrap; overflow-wrap: anywhere; margin: var(--space-1) 0 0; }
.comment-delete { margin-left: auto; }

.more-posts { margin-top: var(--space-16); }
.more-posts h2 { font-size: var(--text-3); }

/* ---- Editor -------------------------------------------------------------- */
.editor-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-6); }
.editor-head h1 { font-family: var(--font-serif); margin: var(--space-2) 0 0; }
.editor-grid { display: grid; grid-template-columns: minmax(0, 1fr) 20rem; gap: var(--space-6); align-items: start; }
@media (max-width: 960px) { .editor-grid { grid-template-columns: 1fr; } }
.editor-side { display: flex; flex-direction: column; gap: var(--space-4); }
.editor-side .card { padding: var(--space-5); }
.editor-side h4 { margin-top: 0; }
.title-input { font-family: var(--font-serif); font-size: var(--text-3); font-weight: 600; padding: var(--space-3) var(--space-4); }
.editor-tabs { display: block; }
.editor-textarea { font-family: var(--font-mono); font-size: 0.9rem; line-height: 1.65; min-height: 28rem; }
.preview { min-height: 28rem; padding: var(--space-6); border: 1px solid var(--border); border-radius: var(--radius-medium); margin-top: 0; }
.cover-preview { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--radius-medium); margin-bottom: var(--space-3); }
.cover-upload { padding: var(--space-4); border-style: dashed; box-shadow: none; }
.cover-upload > button { align-self: center; }
ot-upload:defined input[type="file"] { display: none; }
ot-upload:not(:defined) > button, ot-upload:not(:defined) [data-files] { display: none; }
ot-taginput { margin-top: var(--space-1); }
.danger-zone { border-color: color-mix(in srgb, var(--danger) 45%, var(--border)); }
section.danger-zone { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-4); }
section.danger-zone h4 { margin: 0 0 var(--space-1); }
section.danger-zone p { margin: 0; }

/* ---- Dashboard / admin --------------------------------------------------- */
.stat-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); }
.stat { display: flex; flex-direction: column; gap: var(--space-1); padding: var(--space-4) var(--space-5); }
.stat strong { font-size: var(--text-2); line-height: 1.1; font-variant-numeric: tabular-nums; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.title-cell { min-width: 16rem; }
.title-cell .tag-list { margin-top: var(--space-1); }
.row-actions { flex-wrap: nowrap; justify-content: flex-end; }

/* ---- Profile / settings -------------------------------------------------- */
.profile-head {
  display: flex; gap: var(--space-6); align-items: flex-start;
  margin-bottom: var(--space-10); padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--border);
}
.profile-head figure[data-variant="avatar"] { --sz: 6rem; font-size: 2rem; }
.profile-head h1 { font-family: var(--font-serif); margin: 0 0 var(--space-1); }
.profile-head p { margin-bottom: var(--space-2); }
.joined { margin-inline-start: var(--space-3); }
.profile-stats { display: flex; flex-wrap: wrap; gap: var(--space-5); font-size: var(--text-7); }
.profile-stats strong { color: var(--foreground); }
@media (max-width: 640px) { .profile-head { flex-direction: column; } }

.settings-tabs { display: block; max-width: 44rem; }
.session-list li { padding: var(--space-3) 0; border-bottom: 1px solid var(--border); }
.session-list li:last-child { border-bottom: 0; }

/* ---- Auth / errors ------------------------------------------------------- */
.auth-wrap { display: grid; place-items: center; padding-block: var(--space-10); }
.auth-card { width: min(100%, 26rem); padding: var(--space-8); }
.auth-card header { display: flex; flex-direction: column; align-items: center; text-align: center; gap: var(--space-2); margin-bottom: var(--space-6); }
.auth-card header .logo { width: 44px; height: 44px; }
.auth-card h1 { font-family: var(--font-serif); font-size: var(--text-3); margin: var(--space-2) 0 0; }
.auth-card header p { margin: 0; }
.google-button { gap: var(--space-3); }
.dev-login summary { cursor: pointer; font-size: var(--text-7); }
.dev-login label { margin-top: var(--space-3); }

.error-page { text-align: center; padding-block: var(--space-16); }
.error-code {
  font-family: var(--font-serif); font-size: clamp(4.5rem, 12vw, 8rem);
  line-height: 1; letter-spacing: -0.04em; color: var(--muted-foreground); margin: 0;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}