/* AIVA Variant Console — design tokens + shell.
   All design tokens live in :root. Override here, everything cascades.
   This file owns the shell: tokens, layout, sidebar, topbar, composer.
   Chat, tool, table, dialog, lightbox styles live in chat.css. */

:root {
  /* ─── surfaces (neutral zinc — modern, no blue cast) ─── */
  --bg-0: #0b0c0e;
  --bg-1: #131417;
  --bg-2: #1a1c20;
  --bg-3: #212429;
  --bg-deep: #08090a;

  /* ─── hairlines ─── */
  --line:   rgba(175, 180, 190, 0.08);
  --line-2: rgba(175, 180, 190, 0.14);
  --line-3: rgba(175, 180, 190, 0.22);

  /* ─── text ─── */
  --text:       #fbfcfd;
  --text-dim:   #c7cad2;
  --text-faint: #969aa4;

  /* ─── accent (amber) — change once, tints below auto-derive ─── */
  --accent:        #e0a458;
  --accent-bright: #edbf7e;
  --accent-soft:   #c0863c;
  --accent-glow:   color-mix(in srgb, var(--accent) 18%, transparent);
  --accent-tint-1: color-mix(in srgb, var(--accent)  8%, transparent);
  --accent-tint-2: color-mix(in srgb, var(--accent)  4%, transparent);
  --accent-tint-3: color-mix(in srgb, var(--accent)  2%, transparent);
  --user-bg:       color-mix(in srgb, var(--text)  7%, var(--bg-1));

  /* ─── secondary (aqua — confirm / pgx) ─── */
  --accent-2: #2dd4bf;

  /* ─── shape + layout ─── */
  --r-sm:  8px;    /* controls: buttons, inputs, chips, badges */
  --r-md:  12px;   /* panels: tool blocks, cards, tables, dialogs */
  --r-lg:  18px;   /* bubbles, composer */

  /* ─── signal colors (amber tracks the accent — unified per design) ─── */
  --amber:       var(--accent);
  --danger:      #e06a6a;
  --danger-bg:   rgba(224, 106, 106, 0.10);
  --danger-text: #f3cccc;

  /* ─── triage / ACMG signal ramp (single source — annotations.css points here) ─── */
  --sig-path:        #df5b6a;  /* pathogenic — deep crimson */
  --sig-likely-path: #e08a4f;  /* likely path — warm orange */
  --sig-vus:         #8b97a6;  /* uncertain — neutral slate */
  --sig-likely-ben:  #7fb98a;  /* likely benign — muted sage */
  --sig-benign:      #4fae73;  /* benign — calm green */
  --sig-secondary:   #6f9fc4;  /* secondary finding — slate blue */
  --sig-carrier:     #a98fd6;  /* carrier — violet */

  /* ─── type families (unified — one typeface everywhere) ─── */
  --sans:    "Hanken Grotesk", system-ui, sans-serif;
  --mono:    var(--sans);   /* alias kept so data/code call sites still resolve */
  --display: var(--sans);

  /* ─── type scale ─── */
  --fs-display:  27px;   /* brand mark */
  --fs-h1:       22px;   /* dialog title */
  --fs-h2:       19px;   /* assistant h2 — chat, unchanged */
  --fs-h3:       17px;   /* assistant h3 */
  --fs-body:     15px;   /* chat messages */
  --fs-input:    15px;   /* form inputs, nav chrome */
  --fs-mono:   14.5px;   /* session list, data tables */
  --fs-mono-sm:  14px;   /* tool body, errors, topbar bindings */
  --fs-label:  12.5px;   /* primary uppercase chrome */
  --fs-label-sm: 11.5px; /* secondary uppercase chrome */
}

* { box-sizing: border-box; }
*::selection { background: var(--accent-glow); color: var(--text); }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg-0);
  color: var(--text);
  font: var(--fs-body)/1.6 var(--sans);
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
}

body { display: grid; grid-template-columns: 248px 1fr; height: 100vh; overflow: hidden; }

.sidebar, .main { min-height: 0; position: relative; z-index: 1; }

.sidebar {
  background: var(--bg-1);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; overflow: hidden;
}

.brand { padding: 22px 18px 14px; border-bottom: 1px solid var(--line); }
.brand-row { display: flex; align-items: baseline; justify-content: center; gap: 8px; }
.brand h1 {
  margin: 0;
  font: 600 var(--fs-display)/1 var(--display);
  letter-spacing: 0.01em;
  color: var(--text);
}
.brand-tag {
  font: 500 var(--fs-label-sm)/1 var(--mono);
  letter-spacing: 0.18em;
  color: var(--text-faint);
  text-transform: uppercase;
  padding-top: 4px;
}
.brand-action {
  width: 100%;
  margin-top: 14px;
  padding: 10px 12px;
  background: var(--accent);
  color: var(--bg-deep);
  border: 0;
  border-radius: var(--r-sm);
  cursor: pointer;
  font: 600 var(--fs-input)/1 var(--sans);
  letter-spacing: 0.01em;
  transition: background 0.15s, transform 0.05s;
}
.brand-action:hover { background: var(--accent-bright); }
.brand-action:active { transform: translateY(1px); }
.sidebar-tabs {
  display: flex;
  border-bottom: 1px solid var(--line);
}
.sidebar-tab {
  flex: 1;
  padding: 12px 14px;
  background: transparent;
  border: 0; border-bottom: 1px solid transparent;
  cursor: pointer;
  color: var(--text-faint);
  font: 500 var(--fs-input)/1 var(--sans);
  letter-spacing: 0.01em;
  transition: color 0.12s, border-color 0.12s, background 0.12s;
}
.sidebar-tab:hover { color: var(--text-dim); background: var(--bg-1); }
.sidebar-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  background: var(--bg-1);
}

.session-search {
  margin: 8px 8px 0;
  background: var(--bg-deep);
  color: var(--text);
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  padding: 6px 9px;
  font: 400 var(--fs-mono-sm)/1.3 var(--mono);
  outline: none;
  transition: border-color 0.12s;
}
.session-search:focus { border-color: var(--accent); }
.session-search::placeholder { color: var(--text-faint); }

.session-list { list-style: none; margin: 0; padding: 4px 8px 8px; overflow-y: auto; flex: 1; }
.session-list li.session-empty {
  cursor: default; color: var(--text-faint);
  font-style: italic;
  padding: 8px 18px;
}
.session-list li {
  position: relative;
  padding: 10px 54px 10px 18px;
  cursor: pointer; color: var(--text-dim);
  font-size: 15.5px;
  border-radius: var(--r-sm);
  margin-bottom: 1px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: color 0.12s, background 0.12s;
}
.session-rename,
.session-delete {
  position: absolute;
  top: 7px;
  width: 24px; height: 24px;
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent;
  border: 0; border-radius: var(--r-sm);
  color: var(--text-faint);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.12s, color 0.12s, background 0.12s;
}
.session-rename { right: 28px; }
.session-delete { right: 4px; }
.session-list li:hover .session-rename,
.session-list li:hover .session-delete,
.session-list li.active .session-rename,
.session-list li.active .session-delete { opacity: 0.7; }
.session-rename:hover { color: var(--accent); background: var(--bg-3); opacity: 1; }
.session-delete:hover { color: var(--danger); background: var(--bg-3); opacity: 1; }
.session-name { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.session-rename-input {
  display: block;
  width: 100%;
  background: var(--bg-deep);
  color: var(--text);
  border: 1px solid var(--accent);
  border-radius: var(--r-sm);
  padding: 1px 5px;
  margin: -2px 0;
  font: inherit;
  outline: none;
}
.session-list li:hover { color: var(--text); background: var(--accent-tint-1); }
.session-list li.active { color: var(--text); background: var(--accent-tint-1); box-shadow: inset 2px 0 0 var(--accent); }
.session-list li .meta {
  display: block;
  font: 400 var(--fs-label)/1.4 var(--mono);
  color: var(--text-faint);
  margin-top: 3px; letter-spacing: 0.02em;
}

.file-list {
  list-style: none; margin: 0; padding: 4px 0 8px;
  overflow-y: auto; flex: 1;
}
.file-list ul {
  list-style: none; margin: 0; padding: 0;
}
.file-list li.file-empty {
  cursor: default; color: var(--text-faint);
  font-style: italic;
  padding: 8px 18px;
  font: 400 var(--fs-mono-sm)/1.3 var(--mono);
}
.tree-row {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 10px 4px 0;
  cursor: pointer; color: var(--text-dim);
  font: 400 var(--fs-mono-sm)/1.3 var(--mono);
  border-radius: var(--r-sm);
  margin-bottom: 1px;
  white-space: nowrap; overflow: hidden;
  transition: color 0.12s, background 0.12s;
}
.tree-row:hover { color: var(--text); background: var(--bg-2); }
.tree-row .chev {
  flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  width: 16px; height: 16px;
  font-size: 13px;
  color: var(--text-dim);
  transition: transform 0.1s;
}
.tree-dir.collapsed > .tree-row .chev { transform: rotate(-90deg); }
.tree-row .lbl {
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  flex: 1; min-width: 0;
}
.tree-row .file-kind {
  display: inline-block;
  padding: 1px 5px;
  font: 600 10px/1.2 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  flex-shrink: 0;
}
.tree-sub { padding-left: 14px !important; border-left: 1px dashed var(--line); margin-left: 14px !important; }
.file-actions {
  display: inline-flex; align-items: center; gap: 2px;
  margin-left: auto;
  opacity: 0;
  transition: opacity 0.12s;
  flex-shrink: 0;
}
.tree-file .tree-row:hover .file-actions,
.tree-dir > .tree-row:hover .file-actions { opacity: 1; }
.file-action {
  width: 26px; height: 26px;
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent;
  border: 0; border-radius: var(--r-sm);
  color: var(--text-faint);
  cursor: pointer;
  text-decoration: none;
  transition: color 0.12s, background 0.12s;
}
.file-action:hover { color: var(--text); background: var(--bg-3); }
.file-action:last-child:hover { color: var(--danger); }

.main { position: relative; display: flex; flex-direction: column; min-width: 0; background: var(--bg-0); }

.topbar {
  display: flex; align-items: center; gap: 14px;
  padding: 13px 24px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-0);
}
.topbar-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}
.topbar-action {
  padding: 6px 13px;
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  cursor: pointer;
  font: 500 var(--fs-input)/1 var(--sans);
  letter-spacing: 0.01em;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.topbar-action:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-tint-2);
}
.binding-summary {
  flex: 1;
  display: flex; flex-wrap: wrap; gap: 14px; align-items: center;
  font: 400 var(--fs-mono-sm)/1.5 var(--mono);
  color: var(--text-dim);
  letter-spacing: 0.02em;
}
.binding-group {
  display: inline-flex; align-items: center; flex-wrap: wrap;
  gap: 6px;
}
.binding-group-tag {
  font: 600 var(--fs-label-sm)/1.2 var(--sans);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.binding-group-empty {
  font: 400 var(--fs-mono-sm)/1.2 var(--mono);
  color: var(--text-faint);
  font-style: italic;
}
.binding-summary-hint {
  font: 400 var(--fs-mono-sm)/1.4 var(--mono);
  color: var(--text-dim);
  letter-spacing: 0.04em;
}
.binding-chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 4px 2px 8px;
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  background: var(--bg-1);
  font: 400 var(--fs-mono-sm)/1.2 var(--mono);
  color: var(--text);
}
.binding-chip .chip-text { color: var(--text); }
.binding-chip .chip-x {
  background: transparent;
  border: 0;
  color: var(--text-faint);
  cursor: pointer;
  font-size: 16px; line-height: 1;
  padding: 0 4px;
  transition: color 0.12s;
}
.binding-chip .chip-x:hover { color: var(--danger); }
/* floating composer — overlays the chat; messages scroll beneath it. The form
   is a non-interactive gutter (gradient fade); only the field + chips take
   pointer events, so the chat stays scrollable up to its edge. */
.composer {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 5;
  display: flex; flex-direction: column; gap: 11px;
  padding: 26px 32px 22px;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, var(--bg-0) 42%);
}

/* starter suggestions — shown only while the chat is empty; the visible set
   rotates per page load (see composer.js) */
.composer-examples {
  pointer-events: auto;
  display: flex; flex-wrap: wrap; justify-content: center; gap: 8px;
}
.main:not(:has(#chat:empty)) .composer-examples { display: none; }
.composer-example {
  background: var(--bg-1); border: 1px solid var(--line-2); border-radius: 10px;
  padding: 7px 13px; color: var(--text-dim);
  font: 400 var(--fs-mono-sm)/1 var(--mono); letter-spacing: 0.01em;
  cursor: pointer; transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.composer-example:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-tint-2); }

/* unified input field — textarea + embedded round send/stop button */
.composer-field {
  pointer-events: auto; width: 100%;
  display: flex; align-items: flex-end; gap: 8px;
  background: var(--bg-1); border: 1px solid var(--line-2); border-radius: var(--r-lg);
  padding: 7px 7px 7px 16px;
  box-shadow: 0 20px 50px -24px rgba(0, 0, 0, 0.9), 0 2px 8px -4px rgba(0, 0, 0, 0.6);
  transition: border-color 0.18s, box-shadow 0.18s;
}
.composer-field:focus-within {
  border-color: var(--line-3);
  box-shadow: 0 0 0 1px var(--line-2), 0 22px 55px -24px rgba(0, 0, 0, 0.9);
}

.composer textarea {
  flex: 1; background: transparent; color: var(--text);
  border: 0; outline: none; resize: none; padding: 7px 0;
  font: 400 var(--fs-input)/1.55 var(--sans);
  max-height: 200px; overflow-y: auto;
  scrollbar-width: thin; scrollbar-color: var(--line-2) transparent;
}
.composer textarea::placeholder { color: var(--text-faint); }
.composer textarea::-webkit-scrollbar { width: 7px; }
.composer textarea::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 4px; }

.composer #send {
  flex: none; width: 34px; height: 34px;
  display: grid; place-items: center;
  background: var(--accent); color: var(--bg-deep);
  border: 0; border-radius: 50%; cursor: pointer;
  transition: background 0.15s, transform 0.06s, opacity 0.15s;
}
.composer #send svg { display: block; }
.composer #send:hover:not([disabled]) { background: var(--accent-bright); }
.composer #send:active:not([disabled]) { transform: scale(0.92); }
.composer #send[disabled] { opacity: 0.4; cursor: not-allowed; }
/* dim the send affordance while the field is empty (idle only) */
.composer-field:has(textarea:placeholder-shown) #send:not(.stop) { opacity: 0.35; }

/* stop mode: square glyph on a danger-tinted disc */
.composer #send .icon-stop { width: 11px; height: 11px; border-radius: var(--r-sm); background: currentColor; }
.composer #send.stop { background: var(--danger, #d8455a); color: var(--bg-deep); }
.composer #send.stop:hover:not([disabled]) { background: var(--danger, #e0566e); filter: brightness(1.1); }
.composer #send.stop .icon-send { display: none; }
.composer #send:not(.stop) .icon-stop { display: none; }