:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1d212a;
  --border: #2a2f3a;
  --text: #e6e8ec;
  --muted: #8b93a3;
  --accent: #4f8cff;
  --green: #2ecc71;
  --red: #ff5d6c;
  --amber: #f5a623;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; font-size: 0.9em; }
.mono, .mono * { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.small { font-size: 0.82em; }
.muted { color: var(--muted); }

/* topbar */
.topbar {
  display: flex; align-items: center; gap: 24px;
  padding: 0 24px; height: 56px; background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; color: var(--text); font-size: 1.05rem; }
.brand:hover { text-decoration: none; }
.brand-logo { height: 30px; width: 30px; border-radius: 7px; display: block; }
.topbar nav { display: flex; gap: 18px; flex: 1; }
.topbar nav a { color: var(--muted); padding: 4px 0; }
.topbar nav a.active, .topbar nav a:hover { color: var(--text); text-decoration: none; }
.topbar .user { display: flex; align-items: center; gap: 10px; }
.avatar { width: 28px; height: 28px; border-radius: 50%; }

.container { max-width: 1040px; margin: 0 auto; padding: 28px 24px 60px; }
h1 { font-size: 1.5rem; margin: 0 0 4px; }
h2 { font-size: 1.1rem; margin: 0 0 14px; }
.foot { text-align: center; color: var(--muted); font-size: 0.8rem; padding: 24px; }

/* flashes */
.flashes { margin-bottom: 18px; display: grid; gap: 8px; }
.flash { padding: 10px 14px; border-radius: 8px; border: 1px solid var(--border); }
.flash-success { background: rgba(46,204,113,.12); border-color: rgba(46,204,113,.4); }
.flash-error { background: rgba(255,93,108,.12); border-color: rgba(255,93,108,.4); }

/* cards / stats */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 8px 0 24px; }
.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 12px; padding: 16px;
}
.stat-label { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: .04em; }
.stat-value { font-size: 1.6rem; font-weight: 700; margin: 6px 0 2px; }
.stat-sub { font-size: 0.85rem; color: var(--muted); }
.stat-sub.pos { color: var(--green); }
.stat-sub.neg { color: var(--red); }

/* panels & tables */
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 18px; margin-bottom: 20px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: .03em; }
tbody tr:last-child td { border-bottom: none; }

.tag { display: inline-block; background: var(--panel-2); border: 1px solid var(--border);
  padding: 1px 8px; border-radius: 99px; font-size: 0.78rem; color: var(--muted); }
.dir-bullish { color: var(--green); border-color: rgba(46,204,113,.4); }
.dir-bearish { color: var(--red); border-color: rgba(255,93,108,.4); }
.dir-neutral, .dir-non-directional-long-vol { color: var(--amber); border-color: rgba(245,166,35,.4); }

.status { padding: 2px 9px; border-radius: 99px; font-size: 0.8rem; text-transform: capitalize; }
.status-connected { background: rgba(46,204,113,.15); color: var(--green); }
.status-error { background: rgba(255,93,108,.15); color: var(--red); }
.status-unvalidated { background: rgba(245,166,35,.15); color: var(--amber); }

.note { background: var(--panel-2); border: 1px dashed var(--border); border-radius: 10px;
  padding: 14px 16px; color: var(--muted); }

/* buttons */
.btn, .btn-sm { display: inline-block; cursor: pointer; border-radius: 8px; border: 1px solid var(--border);
  background: var(--accent); color: #fff; font: inherit; padding: 10px 16px; text-align: center; }
.btn-sm { padding: 5px 11px; font-size: 0.82rem; }
.btn:hover, .btn-sm:hover { text-decoration: none; filter: brightness(1.08); }
.btn-secondary { background: var(--panel-2); color: var(--text); }
.btn-danger { background: transparent; color: var(--red); border-color: rgba(255,93,108,.4); }
.btn-google { background: #fff; color: #222; font-weight: 600; width: 100%; }
.btn-google .g { color: #4285f4; font-weight: 800; margin-right: 8px; }
.btn-on { background: var(--green); color: #06281a; border-color: transparent; font-weight: 600; }
.btn-off { background: var(--panel-2); color: var(--text); }
.actions { display: flex; gap: 6px; }
.actions form { display: inline; }
.connect-row { display: flex; gap: 10px; margin-bottom: 18px; }

/* auth */
.auth-card { max-width: 380px; margin: 8vh auto 0; background: var(--panel);
  border: 1px solid var(--border); border-radius: 16px; padding: 32px; text-align: center; }
.auth-card h1 { font-size: 1.4rem; }
.auth-logo { width: 100%; max-width: 260px; height: auto; border-radius: 12px; margin: 0 auto 6px; display: block; }
.auth-card .btn { margin-top: 10px; }
.divider { display: flex; align-items: center; gap: 10px; color: var(--muted); margin: 18px 0; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.dev-form { display: grid; gap: 8px; text-align: left; }
.dev-form label { color: var(--muted); font-size: 0.85rem; }

/* forms */
.stack-form { max-width: 460px; display: grid; gap: 14px; }
.stack-form label, .dev-form label { display: grid; gap: 6px; font-size: 0.9rem; }
input[type=text], input[type=email], input[type=password], input[type=number] {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); padding: 10px 12px; font: inherit; width: 100%;
}
input:focus { outline: none; border-color: var(--accent); }
.req { color: var(--red); }
.form-actions { display: flex; gap: 10px; margin-top: 4px; }

/* strategies */
.strategy-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.strategy { display: flex; flex-direction: column; gap: 10px; }
.strategy.on { border-color: rgba(46,204,113,.45); }
.strategy-head { display: flex; align-items: center; justify-content: space-between; }
.strategy-head h3 { margin: 0; font-size: 1.05rem; }
.strategy-summary { color: var(--muted); font-size: 0.9rem; margin: 0; }
.kv { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 14px; margin: 4px 0 8px; }
.kv div { display: flex; flex-direction: column; }
.kv dt { color: var(--muted); font-size: 0.72rem; text-transform: uppercase; letter-spacing: .03em; }
.kv dd { margin: 0; font-size: 0.88rem; }

/* page head + sub-nav */
.page-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 6px; }
.subnav { display: flex; gap: 6px; flex-wrap: wrap; }
.subnav a { padding: 6px 12px; border-radius: 8px; color: var(--muted); border: 1px solid transparent; }
.subnav a:hover { text-decoration: none; color: var(--text); }
.subnav a.active { color: var(--text); background: var(--panel-2); border-color: var(--border); }
.subnav a.cta { color: var(--accent); }

/* asset filter pills */
.filter-pills { display: flex; gap: 8px; margin: 16px 0; flex-wrap: wrap; }
.pill { padding: 5px 14px; border-radius: 99px; border: 1px solid var(--border); color: var(--muted); background: var(--panel); font-size: 0.85rem; }
.pill:hover { text-decoration: none; color: var(--text); }
.pill.on { background: var(--accent); color: #fff; border-color: transparent; }

/* asset-class tags */
.tag.asset-equity { color: var(--green); border-color: rgba(46,204,113,.4); }
.tag.asset-fno { color: var(--accent); border-color: rgba(79,140,255,.4); }
.tag.asset-commodity { color: var(--amber); border-color: rgba(245,166,35,.4); }

/* code / rule-spec block */
.codeblock { background: #0b0d12; border: 1px solid var(--border); border-radius: 10px;
  padding: 14px 16px; overflow: auto; font-family: ui-monospace, Menlo, monospace;
  font-size: 0.82rem; line-height: 1.5; color: #cdd3df; white-space: pre; }

/* chat builder */
.chat { max-width: 780px; }
.chat-log { background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 18px; min-height: 320px; max-height: 56vh; overflow-y: auto;
  display: flex; flex-direction: column; gap: 16px; }
.chat-empty { color: var(--muted); }
.chat-empty p { margin: 0 0 8px; }
.msg { display: flex; flex-direction: column; gap: 4px; }
.msg-role { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.msg-body { white-space: pre-wrap; line-height: 1.55; }
.msg-user .msg-body { background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 10px; padding: 10px 12px; }
.msg-assistant .msg-body { border-left: 2px solid var(--accent); padding-left: 12px; }
.chat-input { display: flex; gap: 8px; margin-top: 12px; align-items: flex-end; }
.chat-input textarea { flex: 1; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 10px; color: var(--text); padding: 10px 12px; font: inherit; resize: vertical; }
.chat-input textarea:focus { outline: none; border-color: var(--accent); }
.chat-clear { margin-top: 8px; }

/* clickable catalog cards */
.card.clickable { color: inherit; cursor: pointer; transition: border-color .12s, transform .12s; }
.card.clickable:hover { text-decoration: none; border-color: var(--accent); transform: translateY(-2px); }
.card-cta { color: var(--accent); font-size: 0.85rem; margin-top: auto; }

/* configuration form */
.config-head { display: flex; align-items: center; gap: 10px; margin: 6px 0 2px; flex-wrap: wrap; }
.config-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; max-width: 660px; margin-top: 16px; }
.config-form label { display: grid; gap: 6px; font-size: 0.9rem; align-content: start; }
.config-form .full { grid-column: 1 / -1; }
.config-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 4px; }

/* run actions on detail page */
.run-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.run-actions form { display: inline; }

/* live-trading gate */
.gate { margin-top: 4px; }
.gate-row { display: flex; justify-content: space-between; font-size: 0.9rem; margin-bottom: 6px; }
.gate-bar { height: 8px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 99px; overflow: hidden; }
.gate-fill { height: 100%; background: var(--accent); }
.bypass { display: flex; gap: 8px; align-items: flex-start; font-size: 0.85rem; color: var(--amber);
  margin-bottom: 10px; max-width: 560px; }
.bypass input { margin-top: 3px; }

/* catalog sections */
.catalog-section { margin: 8px 0 26px; }
.catalog-section > h2 { margin-bottom: 2px; }
.catalog-section > p { margin: 0 0 14px; }
.build-cta { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.build-cta .btn { white-space: nowrap; }

/* chat "agent is thinking" indicator */
.typing { display: inline-flex; gap: 4px; align-items: center; height: 1em; }
.typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--muted);
  display: inline-block; animation: typing-blink 1.2s infinite ease-in-out both; }
.typing span:nth-child(2) { animation-delay: .2s; }
.typing span:nth-child(3) { animation-delay: .4s; }
@keyframes typing-blink { 0%, 80%, 100% { opacity: .25; transform: translateY(0); }
  40% { opacity: 1; transform: translateY(-3px); } }

/* searchable instrument picker (configure form) */
.combo { position: relative; }
.combo-list { position: absolute; left: 0; right: 0; top: calc(100% + 2px); z-index: 30;
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px;
  max-height: 260px; overflow-y: auto; box-shadow: 0 8px 24px rgba(0,0,0,.35); display: none; }
.combo-list.open { display: block; }
.combo-item { padding: 9px 11px; cursor: pointer; font-size: 0.92rem; }
.combo-item:hover, .combo-item.active { background: var(--accent); color: #fff; }
.combo-item .sym { font-weight: 600; }
.combo-item .meta { color: var(--muted); font-size: 0.8rem; margin-left: 6px; }
.combo-item.active .meta { color: rgba(255,255,255,.8); }
.combo-empty { padding: 9px 11px; color: var(--muted); font-size: 0.88rem; }

/* credential guide (broker form) */
.guide { background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 16px; margin: 12px 0 18px; max-width: 580px; }
.guide > summary { cursor: pointer; font-weight: 600; color: var(--text); }
.guide ol { margin: 12px 0 6px; padding-left: 20px; color: var(--muted); line-height: 1.65; }
.guide li { margin-bottom: 8px; }
.guide strong { color: var(--text); }

/* subscription plans */
.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.plan { display: flex; flex-direction: column; gap: 10px; position: relative; }
.plan.highlighted { border-color: var(--accent); }
.plan-badge { position: absolute; top: -10px; right: 14px; background: var(--accent); color: #fff;
  font-size: 0.72rem; padding: 2px 10px; border-radius: 99px; }
.plan h3 { margin: 0; font-size: 1.15rem; }
.plan-price { font-size: 1.7rem; font-weight: 700; }
.plan-price span { font-size: 0.9rem; font-weight: 400; }
.plan-features { list-style: none; padding: 0; margin: 4px 0; display: grid; gap: 7px; }
.plan-features li { padding-left: 20px; position: relative; color: var(--muted); font-size: 0.9rem; }
.plan-features li::before { content: "✓"; position: absolute; left: 0; color: var(--green); }
.plan .btn { margin-top: auto; }

/* backtest results */
.pos { color: var(--green); }
.neg { color: var(--red); }
.spark-wrap { width: 100%; }
.spark { width: 100%; height: 170px; display: block; }

@media (max-width: 820px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .strategy-grid { grid-template-columns: 1fr; }
  .config-form { grid-template-columns: 1fr; }
  .plan-grid { grid-template-columns: 1fr; }
  .topbar { gap: 12px; padding: 0 12px; }
}