:root {
  color-scheme: dark;
  --c0: #000000;
  --c1: #0000aa;
  --c2: #00aa00;
  --c3: #00aaaa;
  --c4: #aa0000;
  --c5: #aa00aa;
  --c6: #aa5500;
  --c7: #aaaaaa;
  --c8: #555555;
  --c9: #5555ff;
  --c10: #55ff55;
  --c11: #55ffff;
  --c12: #ff5555;
  --c13: #ff55ff;
  --c14: #ffff55;
  --c15: #ffffff;

  --bg: #1e1e1e;
  --surface: #252526;
  --surface-2: #2d2d30;
  --fg: #d4d4d4;
  --fg-soft: #cccccc;
  --muted: #858585;
  --border: #3e3e42;
  --accent: #569cd6;
  --accent-2: #4ec9b0;
  --danger: #f48771;
  --success: #6a9955;
  --selection-bg: #264f78;
  --selection-fg: #ffffff;
  --focus: #007acc;
  --font-mono: "Courier New", "Lucida Console", "Liberation Mono", "Nimbus Mono PS", monospace;
  --measure: 88ch;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #f3f3f3;
  --surface-2: #e8e8e8;
  --fg: #1f1f1f;
  --fg-soft: #3b3b3b;
  --muted: #6c6c6c;
  --border: #d4d4d4;
  --accent: #006ab1;
  --accent-2: #16825d;
  --danger: #a31515;
  --success: #008000;
  --selection-bg: #add6ff;
  --selection-fg: #000000;
  --focus: #007acc;
}

* { box-sizing: border-box; }
html, body, #app, .app-shell { height: 100%; width: 100%; overflow: hidden; max-height: 100%; }
html { background: var(--bg); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.45vw, 16px);
  line-height: 1.14;
  text-rendering: geometricPrecision;
  -webkit-font-smoothing: none;
  font-smooth: never;
}

::selection { background: var(--selection-bg); color: var(--selection-fg); }
input { font: inherit; }
a { color: inherit; }
pre { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
code { color: var(--accent); }
p { margin: 0 0 .5rem; max-width: var(--measure); overflow-wrap: anywhere; }

.skip-link {
  position: fixed;
  top: -5rem;
  left: .5rem;
  z-index: 20;
  padding: .25rem .5rem;
  border: 2px solid var(--focus);
  background: var(--surface);
  color: var(--fg);
}
.skip-link:focus { top: .5rem; }

.site-grid {
  position: fixed;
  inset: 0;
  height: var(--app-height, 100dvh);
  max-height: var(--app-height, 100dvh);
  width: 100vw;
  display: grid;
  grid-template-rows: 1.72rem minmax(0, 1fr) 3.2rem;
  overflow: hidden;
  border: 2px solid var(--border);
  background: var(--bg);
}

.topbar {
  min-width: 0;
  border-bottom: 2px solid var(--border);
  background: var(--surface);
  color: var(--fg);
  overflow: hidden;
}
.topbar-inner {
  position: relative;
  height: 100%;
  padding: 0 .45rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: .8ch;
  align-items: center;
}
.brand {
  min-width: 0;
  display: flex;
  gap: 1ch;
  align-items: baseline;
  overflow: hidden;
}
.brand-mark { color: var(--accent); white-space: nowrap; }
.brand-path { color: var(--fg); overflow-wrap: anywhere; white-space: normal; }
.studio-marquee {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: min(42ch, 44vw);
  min-width: 0;
  height: 100%;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: var(--accent);
  white-space: nowrap;
  pointer-events: none;
}
.studio-marquee span {
  position: absolute;
  left: 100%;
  min-width: max-content;
  opacity: 0;
  transform: translateX(0);
}
.studio-marquee span.is-active {
  opacity: 1;
  animation: twigoo-marquee 8s steps(72, end) 1;
}
.session-state, .theme-state { color: var(--accent-2); white-space: nowrap; }

@keyframes twigoo-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(calc(-100% - min(42ch, 44vw))); }
}

@media (prefers-reduced-motion: reduce) {
  .studio-marquee span {
    left: 50%;
    transform: translateX(-50%);
    animation: none;
  }
}

.screen-grid {
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(24ch, 1fr) clamp(24ch, 32vw, 42ch);
  gap: 2px;
  padding: 2px;
  overflow: hidden;
  background: var(--border);
}
.screen-main, .side-log {
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: var(--bg);
}
.view-stack {
  height: 100%;
  min-height: 0;
  display: grid;
  grid-auto-rows: min-content;
  gap: 2px;
  overflow: hidden;
}
.view-stack:has(.post-spread) {
  grid-template-rows: min-content minmax(0, 1fr);
}
.side-log .panel { height: 100%; }
.side-log .panel-body { height: calc(100% - 2.15rem); overflow: hidden; padding: .35rem; }

.command-dock {
  min-width: 0;
  min-height: 0;
  border-top: 2px solid var(--border);
  background: var(--surface);
  overflow: hidden;
}
.command-line {
  height: 100%;
  display: grid;
  grid-template-rows: 1.15rem minmax(0, 1fr);
  background: var(--surface);
}
.command-entry {
  min-width: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
}
.prompt-label { color: var(--accent); padding: 0 1ch; }
.command-input-wrap {
  position: relative;
  min-width: 0;
  height: 100%;
  display: grid;
  align-items: center;
}
.command-input {
  position: relative;
  z-index: 2;
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  color: var(--fg);
  background: transparent;
  padding: 0 .5rem 0 0;
  caret-color: var(--accent);
}
.command-input::placeholder { color: var(--muted); opacity: 1; }
.command-line:focus-within .prompt-label { color: var(--success); }
.autocomplete-ghost {
  position: absolute;
  inset: 0 .5rem 0 0;
  z-index: 1;
  display: flex;
  align-items: center;
  pointer-events: none;
  color: var(--fg-soft);
  white-space: pre;
  overflow: hidden;
}
.autocomplete-ghost #autocomplete-prefix { visibility: hidden; }
.autocomplete-ghost #autocomplete-suffix { color: var(--accent-2); opacity: .72; }
.autocomplete-row {
  min-width: 0;
  padding: .08rem .45rem 0 3ch;
  color: var(--fg-soft);
  white-space: nowrap;
  overflow: hidden;
}
.autocomplete-row span {
  display: inline-block;
  margin-right: 2ch;
}
.autocomplete-row .is-current {
  color: var(--accent-2);
}

.ascii-hero {
  color: var(--accent);
  background: var(--surface);
  border: 2px solid var(--border);
  padding: .35rem .5rem;
  font-size: clamp(1.1rem, 2.4vw, 2rem);
  line-height: 1;
  letter-spacing: .04em;
  overflow: hidden;
  white-space: pre;
}
.panel {
  min-width: 0;
  min-height: 0;
  border: 2px solid var(--border);
  background: var(--surface);
  overflow: hidden;
}
.panel-head {
  min-width: 0;
  min-height: 1.78rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1ch;
  align-items: center;
  padding: .08rem .45rem;
  border-bottom: 2px solid var(--border);
  background: var(--surface-2);
  overflow: hidden;
}
.panel-title { color: var(--accent); min-width: 0; overflow-wrap: anywhere; white-space: normal; }
.panel-title::before { content: "["; color: var(--fg); }
.panel-title::after { content: "]"; color: var(--fg); }
.panel-kicker { color: var(--accent-2); overflow-wrap: anywhere; white-space: normal; }
.panel-body { padding: .5rem; overflow: hidden; }
.panel-foot {
  padding: .18rem .4rem;
  border-top: 2px solid var(--border);
  color: var(--accent-2);
  white-space: normal;
  overflow-wrap: anywhere;
  overflow: hidden;
}

.cmd-help { color: var(--fg-soft); overflow-wrap: anywhere; }
.muted { color: var(--muted); }
.status, .index { color: var(--accent); }
.empty, .notice { color: var(--fg-soft); overflow-wrap: anywhere; }
.error, .log-line.error .output { color: var(--danger); }
.label { color: var(--accent); }

.board-list, .thread-list, .user-list, .post-list, .command-log {
  display: grid;
  gap: 1px;
  min-width: 0;
  overflow: hidden;
}
.command-log {
  height: 100%;
  align-content: start;
  grid-auto-rows: min-content;
}
.board-row, .thread-row, .user-row {
  position: relative;
  display: grid;
  gap: .05rem;
  padding: .13rem .34rem .13rem 2ch;
  border: 1px solid transparent;
  color: var(--fg-soft);
  overflow: hidden;
}
.board-row.is-selected, .thread-row.is-selected, .user-row.is-selected {
  border-color: var(--accent);
  background: var(--surface-2);
  color: var(--fg);
}
.board-row.is-selected::before, .thread-row.is-selected::before, .user-row.is-selected::before {
  content: ">";
  color: var(--accent);
  position: absolute;
  left: .45rem;
}
.row-title { color: var(--fg); overflow-wrap: anywhere; white-space: normal; }
.row-meta { color: var(--accent-2); font-size: .92rem; overflow-wrap: anywhere; white-space: normal; }
.edited-mark { color: var(--accent); white-space: nowrap; }
.board-row > span:nth-child(2) { overflow-wrap: anywhere; white-space: normal; }

.thread-head { color: var(--fg-soft); overflow: hidden; white-space: pre-wrap; overflow-wrap: anywhere; }
.post-list { grid-auto-rows: minmax(0, max-content); }
.post-spread {
  min-width: 0;
  min-height: 0;
  height: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 2px;
  overflow: hidden;
}
.post-column {
  min-width: 0;
  min-height: 0;
  height: 100%;
  display: grid;
  grid-auto-rows: max-content;
  align-content: start;
  gap: 2px;
  overflow: hidden;
}
.post-column.is-single {
  grid-auto-rows: minmax(0, 1fr);
  align-content: stretch;
}
.view-stack:has(.post-spread) .post-spread {
  min-height: 0;
}
.post-block {
  border: 2px solid var(--border);
  background: var(--surface);
  overflow: hidden;
  min-height: 0;
}
.post-column.is-single .post-block {
  height: 100%;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}
.post-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1ch;
  padding: .16rem .34rem;
  border-bottom: 2px solid var(--border);
  background: var(--surface-2);
  overflow: hidden;
}
.post-author { color: var(--accent); white-space: nowrap; }
.post-body {
  min-height: 0;
  padding: .34rem .55rem .34rem 1rem;
  color: var(--fg);
  width: 100%;
  max-width: none;
  white-space: normal;
  overflow-wrap: anywhere;
  overflow: hidden;
}
.markdown-body {
  display: block;
  line-height: 1.25;
}
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  margin: .45rem 0 .25rem;
  color: var(--accent);
  line-height: 1.1;
  overflow-wrap: anywhere;
}
.markdown-body h1 { font-size: 1.45rem; }
.markdown-body h2 { font-size: 1.28rem; }
.markdown-body h3 { font-size: 1.12rem; }
.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body blockquote,
.markdown-body table,
.markdown-body pre {
  margin: 0 0 .55rem;
}
.markdown-body ul,
.markdown-body ol {
  padding-left: 2ch;
}
.markdown-body li {
  margin: .08rem 0;
}
.markdown-body blockquote {
  padding-left: 1ch;
  border-left: 2px solid var(--accent-2);
  color: var(--fg-soft);
}
.markdown-body .md-code {
  padding: .35rem .45rem;
  border: 1px solid var(--border);
  background: var(--surface-2);
  overflow: hidden;
  white-space: pre-wrap;
}
.markdown-body code {
  color: var(--accent);
}
.markdown-body a {
  color: var(--accent-2);
}
.markdown-body a::before {
  content: attr(data-link-label);
  color: var(--accent);
}
.markdown-body img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border);
}
.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  overflow-wrap: anywhere;
}
.markdown-body th,
.markdown-body td {
  padding: .18rem .35rem;
  border: 1px solid var(--border);
  vertical-align: top;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.markdown-body th {
  color: var(--accent);
}
.markdown-body hr {
  border: 0;
  border-top: 2px solid var(--border);
  margin: .65rem 0;
}
.markdown-body input[type="checkbox"] {
  vertical-align: middle;
}
.markdown-body mark {
  background: var(--accent);
  color: var(--surface);
}
.quote-block {
  margin: .28rem .28rem 0;
  padding: .22rem .42rem;
  border-left: 2px solid var(--accent-2);
  color: var(--fg-soft);
  background: var(--surface-2);
  max-width: var(--measure);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  overflow: hidden;
}

.draft-lines { display: grid; gap: .2rem; min-width: 0; overflow: hidden; }
.draft-body {
  border-left: 2px solid var(--accent);
  padding-left: .55rem;
  color: var(--fg);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  overflow: hidden;
}
.log-line {
  display: grid;
  gap: 0;
  border-left: 2px solid var(--border);
  padding: .06rem .22rem;
  min-width: 0;
  overflow: hidden;
}
.log-line .input,
.log-line .output {
  overflow: hidden;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}
.log-line .input { color: var(--accent); }
.log-line .output { color: var(--fg-soft); }

.kv {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: .22rem 1ch;
  margin: 0;
  overflow: hidden;
}
.kv dt { color: var(--accent); }
.kv dd { margin: 0; color: var(--fg); overflow-wrap: anywhere; white-space: normal; }

.cmd-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}
.cmd-table td {
  padding: .10rem .25rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  overflow-wrap: anywhere;
  white-space: normal;
}
.cmd-table td:first-child { width: 38%; color: var(--accent); }
.cmd-table td:last-child { color: var(--fg-soft); }

@media (max-width: 860px) {
  body { font-size: clamp(12px, 1.6vw, 14px); }
  .site-grid { grid-template-rows: 1.55rem minmax(0, 1fr) 3rem; }
  .screen-grid { grid-template-columns: minmax(22ch, 1fr) clamp(20ch, 34vw, 34ch); grid-template-rows: minmax(0, 1fr); }
  .topbar-inner { grid-template-columns: minmax(0, 1fr) auto; }
  .studio-marquee { width: min(34ch, 42vw); }
  .theme-state { display: none; }
  .panel-head { grid-template-columns: minmax(0, 1fr); }
  .post-head { grid-template-columns: 1fr; }
  .cmd-table td:first-child { width: 45%; }
}

@media (max-width: 520px) {
  body { font-size: 11px; }
  .brand-mark { display: none; }
  .brand-path { display: none; }
  .topbar-inner { grid-template-columns: minmax(0, 1fr) auto; }
  .studio-marquee { left: .45rem; transform: none; width: calc(100% - 12ch); }
  .screen-grid { grid-template-columns: minmax(20ch, 1fr) minmax(18ch, 36vw); }
  .ascii-hero { display: none; }
  .panel-body { padding: .35rem; }
  .board-row, .thread-row, .user-row { padding-top: .16rem; padding-bottom: .16rem; }
}


/* fixed-screen guarantees */
.site-grid, .screen-grid, .screen-main, .side-log, .view-stack, .panel, .panel-body, .command-dock {
  max-width: 100%;
  max-height: 100%;
  overflow: hidden;
}
.view-stack > .panel:first-child:last-child {
  height: 100%;
}
.screen-main .panel:only-child .panel-body,
.screen-main .panel:only-child .help-grid {
  min-height: 0;
}
.command-log {
  max-height: 100%;
  overflow: hidden;
}
.log-line {
  contain: layout paint;
}
.log-line .input,
.log-line .output {
  line-height: 1.08;
}
.help-grid {
  height: 100%;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .4rem 1.4ch;
  overflow: hidden;
  align-content: start;
}
.help-section {
  min-width: 0;
  overflow: hidden;
  border-top: 2px solid var(--border);
}
.help-section-title {
  padding: .08rem .15rem .12rem;
  color: var(--accent);
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.help-row {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(14ch, 1.05fr) minmax(0, 1fr);
  gap: 1ch;
  border-bottom: 1px solid var(--border);
  padding: .08rem .15rem;
}
.help-cmd { color: var(--accent); overflow-wrap: anywhere; }
.help-desc { color: var(--fg-soft); overflow-wrap: anywhere; }
.help-note {
  color: var(--accent-2);
  border-top: 2px solid var(--border);
  padding-top: .2rem;
  margin-top: .2rem;
  overflow-wrap: anywhere;
}
.cmd-table { display: none; }
@media (max-width: 900px) {
  .help-grid { grid-template-columns: 1fr; }
  .help-row { grid-template-columns: minmax(11ch, .85fr) minmax(0, 1.1fr); padding: .04rem .12rem; }
}
@media (max-height: 720px) {
  body { font-size: 12px; }
  .site-grid { grid-template-rows: 1.45rem minmax(0, 1fr) 2.8rem; }
  .panel-head { min-height: 1.55rem; }
  .side-log .panel-body { height: calc(100% - 1.55rem); }
  .panel-body { padding: .22rem; }
  .help-row { padding-top: .02rem; padding-bottom: .02rem; }
}