/* ─────────────────────────────────────────────────────────────────────────
   TIN 1.0 — schematic interface
   ───────────────────────────────────────────────────────────────────────── */

/* Self-hosted IBM Plex (latin subset). Removes the Google Fonts CDN
   dependency so CSP can disallow third-party origins. */
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/ibm-plex-mono-400.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/ibm-plex-mono-500.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/ibm-plex-mono-700.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Serif';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/ibm-plex-serif-400-italic.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --ink:        #e8ecef;
  --ink-dim:    #8a949c;
  --ink-faint:  #4a5258;
  --paper:      #0d1012;
  --paper-2:    #14181b;
  --paper-3:    #1a1f23;
  --rule:       #2a3137;
  --rule-bright:#3d4750;
  --signal:     #6ee7d3;   /* cyan-mint, the "ink" of a blueprint */
  --signal-dim: #2a6a5d;
  --warn:       #e8a86b;
  --alert:      #d96c6c;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 15px; }

body {
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  background: var(--paper);
  color: var(--ink);
  min-height: 100vh;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* faint engineering grid behind everything */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--rule) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: .18;
  pointer-events: none;
  z-index: 0;
}

/* corner registration marks */
body::after {
  content: '';
  position: fixed;
  inset: 16px;
  background:
    linear-gradient(var(--signal-dim), var(--signal-dim)) top left / 14px 1px no-repeat,
    linear-gradient(var(--signal-dim), var(--signal-dim)) top left / 1px 14px no-repeat,
    linear-gradient(var(--signal-dim), var(--signal-dim)) top right / 14px 1px no-repeat,
    linear-gradient(var(--signal-dim), var(--signal-dim)) top right / 1px 14px no-repeat,
    linear-gradient(var(--signal-dim), var(--signal-dim)) bottom left / 14px 1px no-repeat,
    linear-gradient(var(--signal-dim), var(--signal-dim)) bottom left / 1px 14px no-repeat,
    linear-gradient(var(--signal-dim), var(--signal-dim)) bottom right / 14px 1px no-repeat,
    linear-gradient(var(--signal-dim), var(--signal-dim)) bottom right / 1px 14px no-repeat;
  pointer-events: none;
  z-index: 1;
}

.hidden { display: none !important; }

button, input, textarea, select {
  font: inherit;
  color: inherit;
  background: transparent;
  border: none;
}
button { cursor: pointer; }

/* ─── form controls ────────────────────────────────────────────────────── */

input, textarea, select {
  width: 100%;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  padding: 10px 12px;
  font-size: 13px;
  color: var(--ink);
  outline: none;
  transition: border-color .15s ease, background .15s ease;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--signal);
  background: var(--paper-3);
}
textarea { resize: vertical; min-height: 120px; line-height: 1.55; }

select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-dim) 50%),
                    linear-gradient(135deg, var(--ink-dim) 50%, transparent 50%);
  background-position: calc(100% - 14px) 50%, calc(100% - 9px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
  padding-right: 28px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--ink-dim);
}

/* ─── buttons ──────────────────────────────────────────────────────────── */

.primary, .secondary, .danger, .icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .15em;
  border: 1px solid var(--rule-bright);
  background: var(--paper-2);
  color: var(--ink);
  transition: all .15s ease;
  font-weight: 500;
}
.secondary:hover, .icon-btn:hover {
  border-color: var(--signal);
  color: var(--signal);
  background: var(--paper-3);
}
.primary {
  border-color: var(--signal);
  color: var(--signal);
  background: var(--paper);
}
.primary::before {
  content: '▸';
  color: var(--signal);
  font-size: 10px;
}
.primary:hover {
  background: var(--signal);
  color: var(--paper);
}
.primary:hover::before { color: var(--paper); }
.danger {
  border-color: rgba(217,108,108,.4);
  color: var(--alert);
}
.danger:hover { background: rgba(217,108,108,.08); }

.icon-btn { padding: 7px 12px; font-size: 11px; }

/* ─── access screen ────────────────────────────────────────────────────── */

.access {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.access-card {
  width: min(520px, 100%);
  background: var(--paper-2);
  border: 1px solid var(--rule);
  position: relative;
}

.access-card::before {
  content: 'FIG. 01 — ENTRY';
  position: absolute;
  top: -9px; left: 20px;
  background: var(--paper);
  padding: 0 8px;
  font-size: 10px;
  letter-spacing: .2em;
  color: var(--signal);
}

.sheet-header {
  border-bottom: 1px solid var(--rule);
  padding: 22px 24px 18px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
}
.sheet-header .meta { font-size: 10px; color: var(--ink-dim); text-align: right; line-height: 1.7; }
.sheet-header .meta b { color: var(--ink); font-weight: 500; }

.brand-row { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  width: 44px; height: 44px;
  border: 1px solid var(--signal);
  display: grid; place-items: center;
  font-size: 11px; font-weight: 700;
  color: var(--signal);
  letter-spacing: .1em;
  position: relative;
  background: var(--paper);
}
.brand-mark::before, .brand-mark::after {
  content: ''; position: absolute;
  width: 5px; height: 5px;
  border: 1px solid var(--signal);
  background: var(--paper);
}
.brand-mark::before { top: -3px; left: -3px; }
.brand-mark::after { bottom: -3px; right: -3px; }

.brand-row .title-stack p {
  font-size: 10px;
  color: var(--ink-dim);
  text-transform: uppercase;
  letter-spacing: .22em;
  margin-bottom: 4px;
}
.brand-row .title-stack h1 {
  font-family: 'IBM Plex Serif', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 26px;
  letter-spacing: -.01em;
  color: var(--ink);
}
.brand-row.compact .title-stack h1 { font-size: 18px; }

.access-card .body {
  padding: 24px;
  display: grid;
  gap: 20px;
}

.lead {
  font-family: 'IBM Plex Serif', serif;
  font-style: italic;
  font-size: 15px;
  color: var(--ink-dim);
  line-height: 1.55;
  border-left: 1px solid var(--signal);
  padding-left: 14px;
}

.access-card form { display: grid; gap: 14px; }
.access-card .primary { width: 100%; justify-content: center; padding: 12px; }

.error { color: var(--alert); font-size: 12px; min-height: 16px; }

.access-card .footnote {
  border-top: 1px solid var(--rule);
  padding: 14px 24px;
  font-size: 10px;
  color: var(--ink-faint);
  letter-spacing: .08em;
  display: flex;
  justify-content: space-between;
}

/* ─── app shell ────────────────────────────────────────────────────────── */

.app {
  position: relative;
  z-index: 2;
  width: min(1480px, 100%);
  margin: 0 auto;
  padding: 28px 32px 80px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 0 18px;
  border-bottom: 1px solid var(--rule);
}
.top-actions { display: flex; gap: 10px; }

/* status: instrument readout strip */
.status {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-left: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.status > div {
  padding: 14px 18px;
  border-right: 1px solid var(--rule);
  position: relative;
}
.status > div:last-child { border-right: 0; }
.status span {
  display: block;
  font-size: 9px;
  letter-spacing: .25em;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.status strong {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--signal);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}
.status > div::after {
  content: '';
  position: absolute;
  top: 14px; right: 18px;
  width: 6px; height: 6px;
  background: var(--signal);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--signal);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: .4; }
  50%      { opacity: 1; }
}

/* tabs: numbered index */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--rule);
  margin: 28px 0 0;
  overflow-x: auto;
  scrollbar-width: none;
  counter-reset: tabnum;
}
.tabs::-webkit-scrollbar { display: none; }

.tab {
  position: relative;
  padding: 14px 22px 16px;
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink-dim);
  border-bottom: 1px solid transparent;
  margin-bottom: -1px;
  white-space: nowrap;
  font-weight: 500;
  counter-increment: tabnum;
}
.tab::before {
  content: counter(tabnum, decimal-leading-zero) '·';
  margin-right: 10px;
  color: var(--ink-faint);
  font-weight: 400;
}
.tab:hover { color: var(--ink); }
.tab.active {
  color: var(--signal);
  border-bottom-color: var(--signal);
}
.tab.active::before { color: var(--signal); }

/* ─── views ────────────────────────────────────────────────────────────── */

.view { display: none; padding-top: 28px; }
.view.active { display: block; animation: fadein .25s ease; }
@keyframes fadein {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: none; }
}

.grid { display: grid; gap: 0; }
.grid.two { grid-template-columns: 1.1fr .9fr; }

/* panel = sheet */
.panel {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 24px;
  min-width: 0;
  position: relative;
}
.grid.two > .panel:first-child { border-right-width: 0; }

.section-title {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 18px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.section-title p {
  font-size: 9px;
  letter-spacing: .3em;
  color: var(--signal);
  text-transform: uppercase;
  font-weight: 500;
}
.section-title h2 {
  font-family: 'IBM Plex Serif', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 22px;
  color: var(--ink);
}

.inline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 18px;
}

/* skill chips: tag strip */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0 16px;
  padding: 10px 12px;
  border: 1px dashed var(--rule);
  background: var(--paper-2);
  min-height: 42px;
  align-items: center;
}
.chip {
  font-size: 10px;
  padding: 4px 8px;
  background: var(--paper);
  border: 1px solid var(--rule-bright);
  color: var(--ink-dim);
  letter-spacing: .08em;
}
.chip::before { content: '◇ '; color: var(--signal); }

.send-row, .install-row, .note-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}
.install-row { margin-top: 14px; }
.install-row input { flex: 1; min-width: 180px; }

.timer {
  margin-left: auto;
  font-size: 11px;
  color: var(--signal);
  letter-spacing: .15em;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
  padding: 6px 10px;
  border: 1px solid var(--signal-dim);
  background: var(--paper-2);
}
.timer::before { content: '◉ '; color: var(--signal); }

/* output / run history */
.output {
  min-height: 360px;
  max-height: 640px;
  overflow: auto;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  padding: 0;
  font-size: 13px;
  line-height: 1.65;
  white-space: pre-wrap;
  counter-reset: entrynum;
}
.output.empty {
  display: grid;
  place-items: center;
  color: var(--ink-faint);
  font-style: italic;
  font-family: 'IBM Plex Serif', serif;
  white-space: normal;
  padding: 40px;
}

.entry {
  padding: 18px 20px;
  border-bottom: 1px solid var(--rule);
  position: relative;
  counter-increment: entrynum;
}
.entry::before {
  content: counter(entrynum, decimal-leading-zero);
  position: absolute;
  top: 18px; right: 20px;
  font-size: 9px;
  color: var(--ink-faint);
  letter-spacing: .2em;
}
.entry:last-child { border-bottom: 0; }
.entry h3 {
  font-family: 'IBM Plex Serif', serif;
  font-style: italic;
  font-size: 15px;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 6px;
  padding-right: 40px;
}
.entry small {
  display: block;
  font-size: 10px;
  color: var(--ink-faint);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.entry p {
  font-size: 12px;
  color: var(--ink-dim);
  line-height: 1.65;
  white-space: pre-wrap;
}

/* card grids */
.cards { display: grid; gap: 0; }
.card, .mini-item {
  border: 1px solid var(--rule);
  background: var(--paper-2);
  padding: 14px 16px;
  margin-top: -1px;
}
.card:first-child, .mini-item:first-child { margin-top: 0; }
.card:hover, .mini-item:hover { background: var(--paper-3); border-color: var(--rule-bright); }

.card h3, .mini-item h3 {
  font-family: 'IBM Plex Serif', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 14px;
  color: var(--ink);
  margin-bottom: 4px;
}
.card p, .mini-item p {
  font-size: 11px;
  color: var(--ink-dim);
  line-height: 1.55;
}

button.mini-item {
  width: 100%;
  text-align: left;
  display: block;
}

.card-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.card-row > div { min-width: 0; flex: 1; }

.mini-list { display: grid; gap: 0; margin-top: 14px; }

.split { height: 1px; background: var(--rule); margin: 18px 0; }

.muted { color: var(--ink-dim); font-size: 12px; line-height: 1.55; }

/* ─── settings dialog ──────────────────────────────────────────────────── */

dialog.settings {
  width: min(540px, calc(100% - 32px));
  background: var(--paper);
  border: 1px solid var(--signal-dim);
  color: var(--ink);
  padding: 0;
}
dialog.settings::backdrop {
  background: rgba(13,16,18,.85);
  backdrop-filter: blur(2px);
}

.settings .modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--rule);
}
.settings .modal-head h2 {
  font-family: 'IBM Plex Serif', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 18px;
}
.settings .modal-head h2::before {
  content: 'FIG. — ';
  font-style: normal;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: .2em;
  color: var(--signal);
  margin-right: 8px;
}

.settings .body {
  padding: 24px;
  display: grid;
  gap: 16px;
}

/* ─── access screen extensions (enroll/unlock) ─────────────────────────── */

.fig-label {
  font-size: 9px;
  letter-spacing: .3em;
  color: var(--signal);
  text-transform: uppercase;
  margin-bottom: 14px;
  font-weight: 500;
}

.access-card .body > section { display: grid; gap: 14px; }

.access-card .hint {
  font-size: 11px;
  color: var(--ink-faint);
  line-height: 1.6;
  border-left: 1px solid var(--rule);
  padding-left: 12px;
}

.full-width { width: 100%; justify-content: center; }

.ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 14px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .15em;
  border: 1px dashed var(--rule);
  background: transparent;
  color: var(--ink-faint);
  font-weight: 500;
  transition: all .15s ease;
}
.ghost:hover { color: var(--alert); border-color: var(--alert); }

/* ─── settings dialog extensions ───────────────────────────────────────── */

.settings .body { padding: 20px 24px 24px; gap: 4px; }

.settings-section { display: grid; gap: 12px; padding: 4px 0; }
.settings-label {
  font-size: 9px;
  letter-spacing: .3em;
  color: var(--signal);
  text-transform: uppercase;
  font-weight: 500;
}
.settings-section .hint {
  font-size: 11px;
  color: var(--ink-faint);
  line-height: 1.5;
}
.settings-section .full-width { padding: 11px; }

.kv-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.kv-row strong { color: var(--signal); font-weight: 500; }

.file-button {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 9px 14px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .15em;
  border: 1px solid var(--rule-bright);
  background: var(--paper-2);
  color: var(--ink);
  cursor: pointer;
  font-weight: 500;
  width: 100%;
  transition: all .15s ease;
}
.file-button:hover { border-color: var(--signal); color: var(--signal); background: var(--paper-3); }
.file-button input { display: none; }

.settings-actions {
  display: flex;
  justify-content: flex-end;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  margin-top: 6px;
}

/* ─── toast (transient feedback) ───────────────────────────────────────── */

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  padding: 10px 18px;
  background: var(--paper);
  border: 1px solid var(--signal);
  color: var(--signal);
  font-size: 11px;
  letter-spacing: .15em;
  text-transform: uppercase;
  font-weight: 500;
  opacity: 0;
  transition: opacity .18s ease, transform .18s ease;
  pointer-events: none;
  z-index: 50;
}
.toast::before { content: '◉ '; }
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ─── command palette ──────────────────────────────────────────────────── */

dialog.palette {
  width: min(640px, calc(100% - 32px));
  max-height: 70vh;
  margin: 12vh auto auto auto;
  background: var(--paper);
  border: 1px solid var(--signal-dim);
  padding: 0;
  color: var(--ink);
}
dialog.palette::backdrop {
  background: rgba(13,16,18,.78);
  backdrop-filter: blur(2px);
}
.palette-frame { display: flex; flex-direction: column; min-height: 0; max-height: 70vh; }

.palette-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--rule);
}
.palette-prompt {
  font-size: 10px;
  letter-spacing: .25em;
  color: var(--signal);
  font-weight: 500;
  border: 1px solid var(--signal-dim);
  padding: 4px 8px;
  background: var(--paper-2);
}
.palette-head input {
  flex: 1;
  background: transparent;
  border: 0;
  padding: 0;
  font-size: 14px;
  letter-spacing: .01em;
}
.palette-head input:focus { background: transparent; }

.palette-list { flex: 1; overflow-y: auto; padding: 6px 0 8px; }

.palette-group {
  font-size: 9px;
  letter-spacing: .3em;
  color: var(--ink-faint);
  text-transform: uppercase;
  padding: 12px 18px 6px;
  font-weight: 500;
}

.palette-item {
  padding: 10px 18px;
  cursor: pointer;
  border-left: 2px solid transparent;
  display: grid;
  gap: 2px;
}
.palette-item:hover { background: var(--paper-2); }
.palette-item.is-selected {
  background: var(--paper-2);
  border-left-color: var(--signal);
}
.palette-item-main {
  font-size: 13px;
  color: var(--ink);
  font-weight: 500;
}
.palette-item-hint {
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: .04em;
}
.palette-kind {
  font-size: 9px;
  letter-spacing: .25em;
  color: var(--signal);
  font-weight: 500;
  margin-right: 8px;
}

.palette-empty {
  padding: 24px;
  text-align: center;
  color: var(--ink-faint);
  font-style: italic;
  font-family: 'IBM Plex Serif', serif;
}

.palette-foot {
  display: flex;
  gap: 16px;
  justify-content: flex-end;
  padding: 10px 18px;
  border-top: 1px solid var(--rule);
  font-size: 10px;
  letter-spacing: .15em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

kbd {
  font-family: inherit;
  font-size: 10px;
  padding: 2px 6px;
  margin-right: 4px;
  border: 1px solid var(--rule-bright);
  background: var(--paper-2);
  color: var(--ink-dim);
  letter-spacing: .1em;
}

/* ─── shortcuts help overlay ────────────────────────────────────────────── */

dialog.shortcuts-overlay {
  width: min(560px, calc(100% - 32px));
  background: var(--paper);
  border: 1px solid var(--signal-dim);
  padding: 0;
  color: var(--ink);
}
dialog.shortcuts-overlay::backdrop { background: rgba(13,16,18,.78); }
.shortcuts-frame { display: grid; }
.shortcuts-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--rule);
}
.shortcuts-body {
  padding: 18px 22px 22px;
  display: grid;
  gap: 22px;
  max-height: 70vh;
  overflow-y: auto;
}
.shortcuts-body section h3 {
  font-family: 'IBM Plex Serif', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 14px;
  color: var(--ink);
  margin-bottom: 10px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 6px;
}
.shortcuts-body dl { display: grid; gap: 8px; }
.shortcuts-body dl > div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  align-items: baseline;
}
.shortcuts-body dt { font-size: 11px; color: var(--ink-dim); }
.shortcuts-body dd {
  font-size: 12px;
  color: var(--ink-dim);
  line-height: 1.5;
}

/* ─── prompt counter / autosave badge ──────────────────────────────────── */

.prompt-meta {
  display: flex;
  justify-content: flex-end;
  margin-top: 6px;
}
.prompt-counter {
  font-size: 10px;
  letter-spacing: .12em;
  color: var(--ink-faint);
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
}
.prompt-counter.warn  { color: var(--warn); }
.prompt-counter.alert { color: var(--alert); }

.autosave-badge {
  display: inline-block;
  margin-left: 12px;
  font-family: 'IBM Plex Mono', monospace;
  font-style: normal;
  font-size: 9px;
  letter-spacing: .25em;
  color: var(--signal);
  border: 1px solid var(--signal-dim);
  padding: 2px 6px;
  background: var(--paper-2);
  opacity: 0;
  transition: opacity .18s ease;
}
.autosave-badge.show { opacity: 1; }

/* ─── drop target highlight ────────────────────────────────────────────── */

.is-drop-target {
  outline: 1px dashed var(--signal);
  outline-offset: 4px;
  background: rgba(110,231,211,.04);
}

/* ─── undo toast ───────────────────────────────────────────────────────── */

.toast.undo {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 12px 10px 18px;
}
.toast.undo .undo-msg { color: var(--ink); text-transform: none; letter-spacing: .04em; font-size: 12px; }
.toast.undo .undo-btn {
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--signal);
  border: 1px solid var(--signal-dim);
  background: var(--paper);
  padding: 5px 10px;
  font-weight: 500;
}
.toast.undo .undo-btn:hover { background: var(--signal); color: var(--paper); }

/* ─── tin editor (admin tab) ───────────────────────────────────────────── */

.tab-admin { color: var(--ink-faint); }
.tab-admin::after {
  content: '·';
  margin-left: 6px;
  color: var(--warn);
}
.tab-admin.active { color: var(--signal); }

.editor-status {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border: 1px solid var(--rule);
  margin-bottom: 0;
}
.editor-status > div {
  padding: 12px 16px;
  border-right: 1px solid var(--rule);
}
.editor-status > div:last-child { border-right: 0; }
.editor-status span {
  display: block;
  font-size: 9px;
  letter-spacing: .25em;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.editor-status strong {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--signal);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.editor-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
}
.editor-grid > .panel { border-top-width: 0; }
.editor-tree-panel { border-right-width: 0; }

.editor-tree {
  margin: 0 -8px;
  display: grid;
  font-size: 12px;
  max-height: 480px;
  overflow-y: auto;
}
.tree-node {
  display: block;
  text-align: left;
  width: 100%;
  padding: 6px 12px;
  color: var(--ink-dim);
  background: transparent;
  border: 0;
  letter-spacing: 0;
  text-transform: none;
  font-weight: 400;
  font-size: 12px;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tree-node:hover { background: var(--paper-3); color: var(--ink); }
.tree-node[disabled] { opacity: .5; cursor: not-allowed; }
.tree-dir { color: var(--ink); font-weight: 500; }
.tree-dir.collapsed .tree-caret { transform: rotate(-90deg); display: inline-block; }
.tree-caret { display: inline-block; font-size: 8px; color: var(--ink-faint); margin-right: 4px; transition: transform .12s ease; }
.tree-children.hidden { display: none; }
.tree-size { color: var(--ink-faint); font-size: 10px; margin-left: 8px; font-variant-numeric: tabular-nums; }

.editor-buffer {
  border: 1px solid var(--rule);
  background: var(--paper-2);
  min-height: 360px;
  max-height: 560px;
  font-size: 12px;
}
.editor-buffer.empty {
  display: grid;
  place-items: center;
  font-style: italic;
  font-family: 'IBM Plex Serif', serif;
  color: var(--ink-faint);
  padding: 40px;
}
.editor-buffer-frame {
  display: grid;
  grid-template-columns: 56px 1fr;
  height: 480px;
}
.editor-gutter {
  margin: 0;
  padding: 12px 8px;
  background: var(--paper-3);
  border-right: 1px solid var(--rule);
  color: var(--ink-faint);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  line-height: 1.55;
  overflow: hidden;
  white-space: pre;
  text-align: right;
  user-select: none;
}
.editor-buffer textarea#editorTextarea {
  border: 0;
  resize: none;
  background: var(--paper-2);
  padding: 12px 14px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  line-height: 1.55;
  white-space: pre;
  overflow-wrap: normal;
  overflow: auto;
  min-height: 0;
}

.editor-log-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.editor-log-row > div { flex: 1; min-width: 0; }

.setup-steps {
  list-style: none;
  display: grid;
  gap: 8px;
  counter-reset: step;
  margin: 14px 0;
}
.setup-steps li {
  counter-increment: step;
  font-size: 12px;
  color: var(--ink-dim);
  padding: 10px 14px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  display: flex;
  gap: 14px;
  align-items: center;
}
.setup-steps li::before {
  content: counter(step, decimal-leading-zero);
  font-size: 10px;
  color: var(--signal);
  letter-spacing: .15em;
  font-weight: 500;
}
.setup-steps code {
  background: var(--paper-3);
  padding: 2px 6px;
  border: 1px solid var(--rule);
  color: var(--ink);
  font-size: 11px;
}

/* ─── editor modal (commit / diff) ─────────────────────────────────────── */

dialog.editor-modal {
  width: min(820px, calc(100% - 32px));
  max-height: 80vh;
  background: var(--paper);
  border: 1px solid var(--signal-dim);
  color: var(--ink);
  padding: 0;
}
dialog.editor-modal::backdrop { background: rgba(13,16,18,.78); }
dialog.editor-modal .modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 22px;
  border-bottom: 1px solid var(--rule);
}
dialog.editor-modal .modal-head h2 {
  font-family: 'IBM Plex Serif', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 18px;
}
dialog.editor-modal .body {
  padding: 18px 22px 20px;
  display: grid;
  gap: 14px;
  max-height: calc(80vh - 70px);
  overflow-y: auto;
}

.diff-empty {
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 8px 0;
}
details > summary {
  cursor: pointer;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--signal);
  padding: 6px 0;
}
.diff-pre {
  margin: 6px 0 0;
  padding: 10px 12px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  font-size: 11px;
  line-height: 1.5;
  white-space: pre;
  overflow-x: auto;
  max-height: 320px;
}
.diff-line { display: block; white-space: pre; }
.diff-line.add  { color: var(--signal); }
.diff-line.sub  { color: var(--alert); }
.diff-line.hunk { color: var(--warn); }
.diff-line.meta { color: var(--ink-faint); }
.diff-line.ctx  { color: var(--ink-dim); }

/* ─── remote pc (admin tab) ────────────────────────────────────────────── */

.rpc-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
}

button.rpc-cmd {
  text-align: left;
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  color: var(--ink);
  margin-top: -1px;
  margin-left: -1px;
  font-size: 13px;
  letter-spacing: 0;
  text-transform: none;
  font-weight: 500;
}
button.rpc-cmd:first-child { margin-left: 0; }
button.rpc-cmd:hover { background: var(--paper-3); border-color: var(--signal-dim); }
.rpc-cmd-label { color: var(--ink); }
.rpc-cmd-name {
  font-size: 10px;
  color: var(--ink-faint);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.rpc-result {
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  min-height: 80px;
}
.rpc-result:empty { display: none; }

.rpc-output {
  font-size: 11px;
  line-height: 1.55;
  white-space: pre-wrap;
  color: var(--ink-dim);
  margin: 0;
}

.rpc-screenshot {
  display: block;
  max-width: 100%;
  border: 1px solid var(--rule);
}

.rpc-log-row.is-error h3 { color: var(--alert); }
.rpc-log-row.is-error p  { color: var(--alert); opacity: .8; }

/* ─── responsive ───────────────────────────────────────────────────────── */

@media (max-width: 880px) {
  .app { padding: 18px 16px 60px; }
  .topbar { flex-direction: column; align-items: flex-start; gap: 16px; }
  .top-actions { align-self: stretch; }
  .status { grid-template-columns: 1fr 1fr; }
  .status > div:nth-child(2) { border-right: 0; }
  .status > div:nth-child(1), .status > div:nth-child(2) { border-bottom: 1px solid var(--rule); }
  .grid.two { grid-template-columns: 1fr; }
  .grid.two > .panel:first-child { border-right-width: 1px; border-bottom-width: 0; }
  .inline { grid-template-columns: 1fr; }
  .section-title { flex-direction: column; align-items: flex-start; gap: 6px; }
  .timer { margin-left: 0; width: 100%; text-align: center; }

  .editor-status { grid-template-columns: 1fr 1fr; }
  .editor-status > div:nth-child(2) { border-right: 0; }
  .editor-status > div { border-bottom: 1px solid var(--rule); }
  .editor-grid { grid-template-columns: 1fr; }
  .editor-tree-panel { border-right-width: 1px; border-bottom-width: 0; }
  .editor-buffer-frame { height: 360px; }

  .rpc-grid { grid-template-columns: 1fr; }
  button.rpc-cmd { margin-left: 0; }
}