:root {
  --bg: #0b1020;
  --bg2: #11182e;
  --card: #151d36;
  --card2: #1a2342;
  --line: #27325a;
  --text: #dde5f7;
  --dim: #8b97b8;
  --buyer: #38bdf8;
  --seller: #f59e0b;
  --wire: #a78bfa;
  --ok: #34d399;
  --warn: #fbbf24;
  --bad: #f87171;
  --mono: Consolas, 'Cascadia Code', Menlo, monospace;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.45 system-ui, 'Segoe UI', sans-serif;
  display: flex; flex-direction: column;
}
code { font-family: var(--mono); color: var(--wire); font-size: 0.92em; }
.hidden { display: none !important; }
em { color: var(--dim); }

/* ── header ─────────────────────────────────────────────────────────── */
#topbar {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 10px 16px; background: var(--bg2); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 10px; }
.logo { font-size: 26px; color: var(--wire); }
.brand h1 { margin: 0; font-size: 17px; letter-spacing: 3px; }
.brand p { margin: 0; font-size: 11px; color: var(--dim); }
.controls { margin-left: auto; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
button {
  background: var(--card2); color: var(--text); border: 1px solid var(--line);
  border-radius: 7px; padding: 7px 13px; cursor: pointer; font: inherit; font-size: 13px;
}
button:hover { border-color: var(--wire); }
button.primary { background: linear-gradient(135deg, #2563eb, #7c3aed); border: none; font-weight: 600; }
button.primary:disabled { opacity: 0.45; cursor: wait; }
.step-toggle { display: flex; gap: 6px; align-items: center; font-size: 13px; color: var(--dim); cursor: pointer; }
#step-controls { display: inline-flex; align-items: center; gap: 4px; }
#step-pos { font-family: var(--mono); font-size: 12px; color: var(--dim); min-width: 56px; text-align: center; }

/* phase strip */
#phase-strip { display: flex; gap: 4px; flex-wrap: wrap; }
.phase-chip {
  font-size: 10.5px; padding: 3px 9px; border-radius: 99px;
  border: 1px solid var(--line); color: var(--dim); white-space: nowrap;
}
.phase-chip.done { color: var(--text); border-color: #3b4a7a; background: #1c2547; }
.phase-chip.now { color: #0b1020; background: var(--wire); border-color: var(--wire); font-weight: 700; }

/* ── board ──────────────────────────────────────────────────────────── */
#board {
  flex: 1; display: grid; grid-template-columns: 1fr 1.15fr 1fr; gap: 12px;
  padding: 12px 16px 0; min-height: 0; align-items: stretch; overflow: hidden;
}
.column {
  display: flex; flex-direction: column; gap: 10px; min-width: 0;
  overflow-y: auto; min-height: 0; padding-bottom: 64px; scrollbar-width: thin;
}
.column > * { flex-shrink: 0; }
.col-head { padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); }
.col-head h2 { margin: 0; font-size: 15px; }
.col-head .sub { font-size: 11px; color: var(--dim); }
.buyer-head { background: linear-gradient(180deg, rgba(56,189,248,0.14), transparent); border-color: rgba(56,189,248,0.4); }
.seller-head { background: linear-gradient(180deg, rgba(245,158,11,0.14), transparent); border-color: rgba(245,158,11,0.4); }
.wire-head { background: linear-gradient(180deg, rgba(167,139,250,0.14), transparent); border-color: rgba(167,139,250,0.4); text-align: center; }

/* panels */
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; transition: border-color 0.3s; }
.panel h3 {
  margin: 0; padding: 7px 11px; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.7px;
  color: var(--dim); border-bottom: 1px solid var(--line); background: rgba(255,255,255,0.02);
  display: flex; align-items: center; gap: 7px;
}
.panel h3::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--line); flex: none; }
.panel.active { border-color: var(--wire); }
.panel.active h3::before { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
#col-buyer .panel.active { border-color: rgba(56,189,248,0.6); }
#col-seller .panel.active { border-color: rgba(245,158,11,0.6); }
.panel .body { padding: 9px 11px; font-size: 12.5px; overflow-wrap: anywhere; }
.panel .body table { width: 100%; border-collapse: collapse; font-size: 11.5px; }
.panel .body th { text-align: left; color: var(--dim); font-weight: 600; padding: 3px 6px 3px 0; border-bottom: 1px solid var(--line); }
.panel .body td { padding: 4px 6px 4px 0; border-bottom: 1px solid rgba(39,50,90,0.5); vertical-align: top; }
.log-body { max-height: 180px; overflow-y: auto; display: flex; flex-direction: column; gap: 6px; }
.log-line { border-left: 2px solid var(--line); padding-left: 8px; }
.log-line b { display: block; font-size: 12px; }
.log-line span { color: var(--dim); font-size: 11.5px; }
#col-buyer .log-line { border-left-color: var(--buyer); }
#col-seller .log-line { border-left-color: var(--seller); }

.brief-inputs textarea {
  width: 100%; background: var(--bg); color: var(--text); border: 1px solid var(--line);
  border-radius: 7px; padding: 8px; font: 12px/1.5 var(--mono); resize: vertical;
}
.brief-inputs label { display: flex; align-items: center; gap: 8px; margin-top: 6px; font-size: 12px; color: var(--dim); }
.brief-inputs input {
  background: var(--bg); color: var(--text); border: 1px solid var(--line);
  border-radius: 6px; padding: 5px 8px; font-family: var(--mono); width: 110px;
}
.hint { font-size: 11px; color: var(--dim); margin: 6px 0 0; }

/* badges & bars */
.badge {
  display: inline-block; font-size: 10px; font-weight: 700; letter-spacing: 0.5px;
  padding: 2px 8px; border-radius: 99px; text-transform: uppercase;
}
.badge.completed, .badge.approved, .badge.active, .badge.ok, .badge.delivering { background: rgba(52,211,153,0.16); color: var(--ok); }
.badge.submitted, .badge.working, .badge.pending_creatives, .badge.reviewing, .badge.queued, .badge.syncing { background: rgba(251,191,36,0.15); color: var(--warn); }
.badge.rejected, .badge.failed { background: rgba(248,113,113,0.16); color: var(--bad); }
.badge.selected { background: rgba(56,189,248,0.16); color: var(--buyer); }
.badge.neutral, .badge.in_library, .badge.passed, .badge.reserved { background: rgba(139,151,184,0.15); color: var(--dim); }
.bar { height: 7px; background: var(--bg); border-radius: 99px; overflow: hidden; margin-top: 3px; }
.bar > i { display: block; height: 100%; border-radius: 99px; background: var(--ok); transition: width 0.4s; }
.bar > i.warn { background: var(--warn); }
.bar > i.bad { background: var(--bad); }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 2px 12px; font-size: 12px; }
.kv dt { color: var(--dim); }
.kv dd { margin: 0; font-family: var(--mono); font-size: 11.5px; }
.metric-row { display: flex; gap: 14px; flex-wrap: wrap; margin: 4px 0; }
.metric { background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; min-width: 86px; }
.metric b { display: block; font-size: 15px; font-family: var(--mono); }
.metric span { font-size: 10px; color: var(--dim); text-transform: uppercase; letter-spacing: 0.4px; }

/* ── wire feed ──────────────────────────────────────────────────────── */
#wire-feed { display: flex; flex-direction: column; gap: 8px; }
.wire-empty { color: var(--dim); text-align: center; padding: 30px 10px; font-size: 13px; }
.phase-sep { display: flex; align-items: center; gap: 10px; color: var(--wire); font-size: 11.5px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin-top: 6px; }
.phase-sep::before, .phase-sep::after { content: ''; flex: 1; height: 1px; background: linear-gradient(90deg, transparent, var(--wire), transparent); opacity: 0.5; }
.wire-card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 8px 11px; }
.wire-card.b2s { border-left: 3px solid var(--buyer); }
.wire-card.s2b { border-left: 3px solid var(--seller); border-left-style: solid; }
.wire-card.webhook { border-style: dashed; border-left: 3px dashed var(--seller); }
.wire-card.compact { padding: 5px 11px; }
.wire-card.sys { border-left: 3px solid var(--ok); }
.wire-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.dir { font-family: var(--mono); font-size: 11px; font-weight: 700; }
.dir.b2s { color: var(--buyer); }
.dir.s2b { color: var(--seller); }
.task-name { font-family: var(--mono); font-size: 12.5px; font-weight: 700; }
.lat { margin-left: auto; font-size: 10px; color: var(--dim); font-family: var(--mono); }
.wire-note { font-size: 11.5px; color: var(--dim); margin-top: 3px; }
.wire-card details { margin-top: 5px; }
.wire-card summary { font-size: 10.5px; color: var(--wire); cursor: pointer; user-select: none; }
.wire-card pre {
  margin: 5px 0 0; padding: 8px; background: var(--bg); border: 1px solid var(--line); border-radius: 7px;
  font: 10.5px/1.5 var(--mono); overflow-x: auto; max-height: 280px; overflow-y: auto;
  white-space: pre-wrap; word-break: break-word;
}
.spinner { display: inline-block; width: 10px; height: 10px; border: 2px solid var(--line); border-top-color: var(--wire); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* reveal animation */
.wire-card, .log-line { animation: pop 0.25s ease-out; }
@keyframes pop { from { opacity: 0; transform: translateY(4px); } }

/* ── explain bar ────────────────────────────────────────────────────── */
#explain-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  display: flex; gap: 10px; align-items: center;
  background: rgba(17, 24, 46, 0.97); border-top: 1px solid var(--line);
  padding: 9px 16px; font-size: 13px; backdrop-filter: blur(6px);
}
#explain-bar .tag { color: var(--ok); }
#explain-text { color: var(--text); }

/* ── how dialog ─────────────────────────────────────────────────────── */
dialog {
  background: var(--card); color: var(--text); border: 1px solid var(--line);
  border-radius: 14px; max-width: 880px; width: 92vw; max-height: 86vh; overflow-y: auto; padding: 22px 26px;
}
dialog::backdrop { background: rgba(5, 8, 18, 0.75); }
dialog h2 { margin-top: 0; }
dialog h3 { margin-bottom: 6px; }
.arch { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; margin: 14px 0; }
.arch-box { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font-size: 12px; }
.arch-box h4 { margin: 0 0 6px; font-size: 12.5px; }
.arch-box ul { margin: 0; padding-left: 16px; color: var(--dim); }
.arch-box ul.mono { font-family: var(--mono); list-style: none; padding-left: 0; }
.buyer-tint { background: rgba(56,189,248,0.07); border-color: rgba(56,189,248,0.35); }
.seller-tint { background: rgba(245,158,11,0.07); border-color: rgba(245,158,11,0.35); }
.wire-tint { background: rgba(167,139,250,0.07); border-color: rgba(167,139,250,0.35); }
.phase-list li { margin-bottom: 5px; font-size: 13px; }
.dim { color: var(--dim); font-size: 12px; }

@media (max-width: 1100px) {
  /* Stacked layout: the board scrolls as one page, columns take natural height. */
  #board { grid-template-columns: 1fr; overflow-y: auto; }
  .column { overflow: visible; min-height: auto; padding-bottom: 0; }
  .column:last-child { padding-bottom: 64px; }
  .arch { grid-template-columns: 1fr; }
}