/* ===== fedorvin.com — TUI theme base =====
   Box-drawn frame around the page, lazygit-style row selection,
   restrained Nord palette. */

.tui {
  --bg: var(--base00);
  --panel: var(--base01);
  --panel-2: var(--base02);
  --fg: var(--base05);
  --fg-bright: var(--base07);
  --muted: var(--base04);
  --rule: var(--base02);
  --rule-bright: var(--base03);
  --link: var(--base09);
  --accent: var(--base08);
  --hl: var(--base0D);
  --tag: var(--base0C);
  --green: var(--base0E);

  background: var(--bg);
  color: var(--fg);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100%;
  padding: 28px 28px;
  display: flex;
  flex-direction: column;

  /* Cap width on large displays so the frame doesn't stretch edge-to-edge.
     Expressed in rem so it scales with the user's root font size. */
  max-width: 64rem;
  margin: 0 auto;
}

/* Hover decorations should snap in instantly — no smooth transitions. */
.tui, .tui *, .tui *::before, .tui *::after {
  transition: none !important;
  animation: none !important;
}

.tui .frame {
  border: 1px solid var(--rule-bright);
  position: relative;
  padding: 30px 36px 18px;
  display: flex;
  flex-direction: column;
}
/* corner-anchored title strip — looks like ╭─ whoami.md ─╮ */
.tui .frame::before {
  content: attr(data-title);
  position: absolute;
  top: -0.7em;
  left: 18px;
  background: var(--bg);
  padding: 0 10px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
/* right-side meta strip */
.tui .frame::after {
  content: attr(data-meta);
  position: absolute;
  top: -0.7em;
  right: 18px;
  background: var(--bg);
  padding: 0 10px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.tui .wrap {
  max-width: 50rem;
  margin: 0 auto;
  width: 100%;
  flex: 1;
}

/* Header — bracketed tabs (kept from V4) */
.tui header.site {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 22px;
  gap: 24px;
  font-size: 13px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}
.tui .brand {
  font-weight: 700;
  color: var(--fg);
}
.tui .brand .user { color: var(--hl); }
.tui .brand .at { color: var(--muted); }
.tui .brand .host { color: var(--green); }
.tui .brand .path { color: var(--muted); }

/* `fedor@fedorvin.com` is a link back to the home page. Keep the per-span
   colors at rest; on hover, the whole link turns bright (white). */
.tui .brand .brand-link {
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}
.tui .brand .brand-link:hover .user,
.tui .brand .brand-link:hover .host { color: var(--fg-bright); }

.tui nav.site { display: flex; gap: 14px; font-size: 13px; }
.tui nav.site a {
  text-decoration: none;
  color: var(--muted);
  padding: 0 2px;
}
.tui nav.site a:hover { color: var(--fg-bright); }
.tui nav.site a.is-active { color: var(--hl); font-weight: 700; }
.tui nav.site a.is-active::before { content: "["; color: var(--accent); margin-right: 1px; font-weight: 400; }
.tui nav.site a.is-active::after  { content: "]"; color: var(--accent); margin-left: 1px;  font-weight: 400; }

/* Page title — minimal, no big # */
.tui h1.page-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--fg-bright);
  margin: 0 0 4px;
  letter-spacing: 0.01em;
}
.tui .page-sub {
  color: var(--muted);
  margin: 0 0 22px;
  font-size: 12.5px;
}

/* Section divider — `── label ──` rule */
.tui h2.section {
  font-size: 11.5px;
  text-transform: lowercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 700;
  margin: 28px 0 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.tui h2.section::before { content: "──"; color: var(--rule-bright); font-weight: 400; }
.tui h2.section::after  { content: ""; flex: 1; height: 1px; background: var(--rule); }
.tui h2.section .count { color: var(--muted); font-weight: 400; font-size: 11px; letter-spacing: 0; }

/* Key/value bio rows */
.tui .kv {
  display: grid;
  grid-template-columns: 100px 1fr;
  row-gap: 3px;
  column-gap: 14px;
  font-size: 13.5px;
  margin: 0 0 26px;
}
.tui .kv .k { color: var(--accent); font-weight: 700; }
.tui .kv .v { color: var(--fg); }
.tui .kv .v .name { color: var(--hl); font-weight: 700; }
.tui .kv .v .at { color: var(--muted); }
.tui .kv .v .host { color: var(--green); font-weight: 700; }
.tui .kv .v a { color: var(--link); text-decoration: none; }
.tui .kv .v a:hover { color: var(--hl); text-decoration: underline; text-decoration-style: dotted; }
.tui .kv .v .sep { color: var(--muted); margin: 0 8px; }

/* Bullets */
.tui ul.bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 26px;
  display: flex;
  flex-direction: column;
}
.tui ul.bullets li {
  padding: 3px 10px 3px 22px;
  position: relative;
  color: var(--fg);
  font-size: 13.5px;
  border-left: 2px solid transparent;
}
.tui ul.bullets li::before {
  content: "·";
  position: absolute;
  left: 10px; top: 3px;
  color: var(--muted);
  font-weight: 700;
}
.tui ul.bullets li:hover {
  background: var(--panel);
  border-left-color: var(--accent);
}
.tui ul.bullets a { color: var(--link); text-decoration: none; }
.tui ul.bullets a:hover { color: var(--hl); text-decoration: underline; text-decoration-style: dotted; }
.tui ul.bullets strong { color: var(--fg-bright); }

/* Quickfix-style posts list — lazygit row selection on hover */
.tui .qf {
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  margin: 0;
}
.tui .qf .qf-row {
  display: grid;
  grid-template-columns: 92px 1fr auto;
  gap: 14px;
  padding: 7px 14px 7px 12px;
  align-items: baseline;
  border-left: 2px solid transparent;
  cursor: pointer;
}
.tui .qf .qf-row:hover {
  background: var(--panel);
  border-left-color: var(--accent);
}
.tui .qf .qf-row .date { color: var(--muted); font-size: 12px; }
.tui .qf .qf-row .title-cell { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.tui .qf .qf-row .title-cell a { color: var(--link); text-decoration: none; font-weight: 700; }
.tui .qf .qf-row:hover .title-cell a { color: var(--hl); }
.tui .qf .qf-row .title-cell .desc { color: var(--muted); font-size: 12px; line-height: 1.5; }
.tui .qf .qf-row .tags { font-size: 10.5px; color: var(--tag); white-space: nowrap; }
.tui .qf .qf-row .tags .tag { color: var(--tag); margin-left: 6px; }
.tui .qf .qf-row .tags .tag::before { content: "["; color: var(--rule-bright); }
.tui .qf .qf-row .tags .tag::after  { content: "]"; color: var(--rule-bright); }

/* Project rows */
.tui .proj-list {
  margin: 0; padding: 0; list-style: none;
  display: flex; flex-direction: column;
}
.tui .proj-list li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 14px;
  padding: 7px 14px 7px 12px;
  align-items: baseline;
  font-size: 13px;
  border-left: 2px solid transparent;
}
.tui .proj-list li:hover {
  background: var(--panel);
  border-left-color: var(--accent);
}
.tui .proj-list .lang { color: var(--muted); font-size: 11px; text-align: left; }
.tui .proj-list .lang::before { content: "["; color: var(--rule-bright); }
.tui .proj-list .lang::after  { content: "]"; color: var(--rule-bright); }
.tui .proj-list .body a { color: var(--link); text-decoration: none; font-weight: 700; }
.tui .proj-list li:hover .body a { color: var(--hl); }
.tui .proj-list .body .desc { color: var(--muted); font-size: 12px; line-height: 1.5; }

/* Post article */
.tui article.post {
  font-size: 14px;
  line-height: 1.78;
}
.tui article.post p { margin: 0 0 16px; }
.tui article.post h2 {
  font-size: 14.5px;
  color: var(--fg-bright);
  margin: 26px 0 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}
.tui article.post h2::before { content: "▌"; color: var(--accent); font-size: 14px; }
.tui article.post h3 {
  font-size: 13px;
  color: var(--fg-bright);
  margin: 22px 0 10px;
  font-weight: 700;
  padding-left: 12px;
  border-left: 2px solid var(--accent);
  letter-spacing: 0.02em;
}
.tui article.post a { color: var(--link); text-decoration: none; border-bottom: 1px dotted var(--rule-bright); }
.tui article.post a:hover { color: var(--hl); border-bottom-color: var(--hl); }
.tui article.post code {
  background: var(--panel);
  padding: 1px 6px;
  color: var(--accent);
  font-size: 12.5px;
}
.tui article.post pre {
  background: var(--panel);
  padding: 14px 16px;
  margin: 16px 0;
  overflow: auto;
  font-size: 12.5px;
  border-left: 2px solid var(--green);
  color: var(--fg);
  line-height: 1.6;
}
.tui article.post pre code { background: none; padding: 0; color: inherit; }
.tui article.post blockquote {
  margin: 16px 0;
  padding: 4px 16px;
  border-left: 2px solid var(--tag);
  color: var(--muted);
}

/* Socials — icon tiles, lazygit/btop style row of compact panels */
.tui .socials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 0 0 26px;
}
.tui .socials a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--rule);
  background: var(--bg);
  text-decoration: none;
  color: var(--fg);
  font-size: 12.5px;
  border-left: 2px solid var(--rule-bright);
  transition: none;
}
.tui .socials a:hover {
  background: var(--panel);
  border-left-color: var(--accent);
  color: var(--hl);
}
.tui .socials a .ico {
  flex: 0 0 16px;
  width: 16px; height: 16px;
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}
.tui .socials a:hover .ico { color: var(--hl); }
.tui .socials a .ico svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.tui .socials a .lbl { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; overflow: hidden; }
.tui .socials a .lbl .k { color: var(--accent); font-size: 10.5px; text-transform: lowercase; letter-spacing: 0.06em; font-weight: 700; }
.tui .socials a:hover .lbl .k { color: var(--hl); }
.tui .socials a .lbl .v { color: var(--fg); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
/* Post layout — TOC sits above the article as a compact box */
.tui .post-layout { display: block; }

.tui .toc {
  margin: 0 0 22px;
  padding: 10px 14px;
  border: 1px dashed var(--rule);
  background: rgba(0,0,0,0.18);
  font-size: 12px;
  color: var(--muted);
}
.tui .toc-head {
  color: var(--accent);
  font-weight: 700;
  font-size: 10.5px;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
  text-transform: lowercase;
}

/* Vertical — stacked numbered list, with h3 children branching as a tree */
.tui .toc-vertical .toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.tui .toc-vertical .toc-item { display: block; }
.tui .toc-vertical .toc-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  line-height: 1.5;
}
.tui .toc-vertical .num {
  color: var(--accent);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}
.tui .toc-vertical .toc-row a {
  color: var(--fg);
  text-decoration: none;
  font-size: 12.5px;
  border-bottom: 1px dotted transparent;
}
.tui .toc-vertical .toc-row:hover a {
  color: var(--hl);
  border-bottom-color: var(--accent);
}

/* h3 sub-items: tree branches indented under each h2 */
.tui .toc-vertical .toc-sub {
  list-style: none;
  margin: 2px 0 6px;
  padding: 0 0 0 26px;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.tui .toc-vertical .toc-subitem {
  display: flex;
  align-items: baseline;
  line-height: 1.5;
}
.tui .toc-vertical .branch {
  color: var(--rule-bright);
  white-space: pre;
  user-select: none;
  font-size: 12px;
}
.tui .toc-vertical .toc-subitem a {
  color: var(--muted);
  text-decoration: none;
  font-size: 12px;
  border-bottom: 1px dotted transparent;
}
.tui .toc-vertical .toc-subitem:hover a {
  color: var(--hl);
  border-bottom-color: var(--accent);
}

/* Mobile — tighter padding */
.tui-mobile .tui .toc { margin-bottom: 16px; padding: 8px 10px; }
.tui-mobile .tui .toc-vertical .toc-row a { font-size: 11.5px; }
.tui-mobile .tui .toc-vertical .toc-subitem a,
.tui-mobile .tui .toc-vertical .branch { font-size: 11px; }
.tui footer.plain {
  margin-top: 32px;
  font-size: 11.5px;
  color: var(--muted);
  line-height: 1.7;
  letter-spacing: 0.02em;
}
.tui footer.plain .row { display: block; }
.tui footer.plain .sep { color: var(--rule-bright); margin: 0 6px; }
.tui footer.plain .hash { color: var(--green); }
.tui footer.plain a { color: var(--muted); text-decoration: none; border-bottom: 1px dotted var(--rule-bright); }
.tui footer.plain a:hover { color: var(--fg); border-bottom-color: var(--fg); }

@media (max-width: 560px) {
  .tui footer.plain { font-size: 11px; margin-top: 24px; }
}

/* ===== Real-viewport mobile fallback (when viewing the actual site on a phone) ===== */
@media (max-width: 560px) {
  .tui { padding: 10px 8px; font-size: 13.5px; }
  .tui .frame { padding: 18px 12px 10px; border: none; }
  .tui .frame::before,
  .tui .frame::after { display: none; }
  .tui .wrap { max-width: 100%; }
  .tui header.site {
    flex-direction: column; align-items: stretch; gap: 8px;
    margin-bottom: 16px; padding-bottom: 8px;
  }
  .tui .brand { font-size: 12px; word-break: break-all; }
  .tui nav.site {
    gap: 14px; justify-content: flex-start; font-size: 12px;
    border-top: 1px dashed var(--rule); padding-top: 8px;
  }
  .tui h1.page-title { font-size: 15.5px; }
  .tui .page-sub { font-size: 11.5px; margin-bottom: 16px; word-wrap: break-word; }
  .tui h2.section { font-size: 11px; margin: 20px 0 10px; }
  .tui ul.bullets li { font-size: 12.5px; padding: 5px 4px 5px 18px; line-height: 1.55; }
  .tui .socials { grid-template-columns: 1fr; gap: 0; }
  .tui .socials a {
    padding: 12px 10px; font-size: 12.5px; border: none;
    border-bottom: 1px solid var(--rule); border-left: 2px solid transparent;
  }
  .tui .socials a:first-child { border-top: 1px solid var(--rule); }
  .tui .qf .qf-row { grid-template-columns: 1fr; gap: 4px; padding: 10px 8px; }
  .tui .qf .qf-row .tags { margin-top: 4px; white-space: normal; display: flex; flex-wrap: wrap; gap: 4px; }
  .tui .qf .qf-row .tags .tag { margin-left: 0; }
  .tui .proj-list li { grid-template-columns: 44px 1fr; gap: 8px; padding: 10px 8px; font-size: 12.5px; }
  .tui article.post { font-size: 13px; line-height: 1.7; }
  .tui article.post pre { padding: 10px; font-size: 11.5px; }
  .tui footer.site {
    flex-direction: column; align-items: flex-start; gap: 6px;
    font-size: 10.5px; padding-top: 10px; margin-top: 18px;
  }
  .tui footer.site .kb { padding: 0; border-right: none; }
}