:root {
  --bg: #0f1115;
  --panel: #1a1d24;
  --panel-2: #20242d;
  --text: #e6e9ef;
  --muted: #8b93a7;
  --accent: #5b8cff;
  --up: #2ecc71;
  --down: #ff5c5c;
  --border: #2a2f3a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}

.topbar {
  display: flex; align-items: center; gap: 24px;
  padding: 12px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5;
}
.topbar .brand { font-weight: 700; color: var(--accent); }
.topbar nav a {
  color: var(--muted); text-decoration: none; margin-right: 16px;
  padding: 4px 0; border-bottom: 2px solid transparent;
}
.topbar nav a:hover { color: var(--text); }
.topbar nav a.active { color: var(--text); border-bottom-color: var(--accent); }

main { padding: 20px; max-width: 1200px; margin: 0 auto; }

.toolbar { margin-bottom: 4px; }

.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.toolbar h1 { font-size: 18px; margin: 0; }
.hint { color: var(--muted); margin: 4px 0 16px; }

.btn {
  background: var(--accent); color: #fff; border: none;
  padding: 8px 16px; border-radius: 6px; cursor: pointer; font-weight: 600;
}
.btn:hover { filter: brightness(1.1); }

.back-link { color: var(--accent); text-decoration: none; }
.back-link:hover { text-decoration: underline; }

.grid { width: 100%; border-collapse: collapse; background: var(--panel); border-radius: 8px; overflow: hidden; }
.grid th, .grid td { padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--border); }
.grid th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
.grid td.num, .grid th.num { text-align: right; font-variant-numeric: tabular-nums; }
.grid .sym { font-weight: 600; }
.grid .sym a { color: var(--accent); text-decoration: none; }
.grid .sym a:hover { text-decoration: underline; }
.grid td.buy { color: var(--up); }
.grid td.sell { color: var(--down); }
.grid .z { display: block; font-size: 11px; font-weight: 400; color: var(--muted); }
.grid tr.row { cursor: pointer; }
.grid tr.row:hover { background: var(--panel-2); }
.grid .col-star { width: 36px; text-align: center; }
.grid .empty { text-align: center; color: var(--muted); padding: 24px; }

.up { color: var(--up); }
.down { color: var(--down); }

.icon-btn {
  background: transparent; border: none; cursor: pointer;
  color: var(--muted); font-size: 18px; line-height: 1; padding: 2px 4px;
}
.icon-btn:hover { color: var(--accent); }
.icon-btn.watched { color: #ffcf4d; }

.detail-row > td { padding: 0; border-bottom: 1px solid var(--border); background: var(--panel-2); }
.details:empty { display: none; }
.details { padding: 0 16px; }
.details:not(:empty) { padding: 16px; animation: reveal .18s ease-out; }

@keyframes reveal {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* htmx request feedback */
.htmx-request.btn { opacity: .6; pointer-events: none; }
tr.row.htmx-request { background: var(--panel-2); }

.details-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.details-grid h4 { margin: 0 0 8px; color: var(--accent); }
.details-grid dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; margin: 0; }
.details-grid dt { color: var(--muted); }
.details-grid dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }

@media (max-width: 720px) {
  .details-grid { grid-template-columns: 1fr; }
  #derivatives-table th:nth-child(6), #derivatives-table td:nth-child(6),
  #derivatives-table th:nth-child(7), #derivatives-table td:nth-child(7) { display: none; }
}

/* Editable per-symbol impulse threshold (watched page). */
.grid td.col-threshold { width: 96px; }
.threshold-form { margin: 0; }
.threshold-input {
  width: 72px; text-align: right; font: inherit;
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 4px; padding: 4px 6px;
}
.threshold-input:focus { outline: none; border-color: var(--accent); }

/* Section headings on the symbol card. */
.section-title {
  font-size: 12px; color: var(--muted); text-transform: uppercase;
  letter-spacing: .03em; margin: 24px 0 8px;
}

/* "active" badge on an open impulse. */
.badge-active {
  display: inline-block; font-size: 10px; font-weight: 700; text-transform: uppercase;
  color: var(--bg); background: var(--accent); border-radius: 4px;
  padding: 1px 6px; margin-left: 6px; vertical-align: middle; letter-spacing: .03em;
}

/* Impulses table pagination. */
.pager { display: flex; align-items: center; gap: 12px; margin: 12px 0; }
.pager-info { color: var(--muted); }
.btn-sm {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border);
  padding: 5px 12px; border-radius: 6px; cursor: pointer; font-weight: 600;
}
.btn-sm:hover:not([disabled]) { border-color: var(--accent); color: var(--accent); }
.btn-sm[disabled] { opacity: .4; cursor: default; }

/* All-impulses filter bar. */
.filters { display: flex; align-items: center; gap: 12px; margin: 0 0 16px; flex-wrap: wrap; }
.filters label { color: var(--muted); display: flex; align-items: center; gap: 6px; }
.filter-input {
  font: inherit; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 4px; padding: 6px 8px;
}
.filter-input:focus { outline: none; border-color: var(--accent); }

/* Right-aligned topbar actions (notification opt-in + logout). */
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }

/* Login page and logout button. */
.logout-form { margin: 0; }
.login-main { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-form {
  display: flex; flex-direction: column; gap: 8px; width: 320px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
  padding: 28px 24px;
}
.login-title { font-size: 18px; color: var(--accent); margin: 0 0 8px; text-align: center; }
.login-label { color: var(--muted); font-size: 12px; }
.login-input {
  font: inherit; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 4px; padding: 8px 10px;
}
.login-input:focus { outline: none; border-color: var(--accent); }
.login-submit { margin-top: 12px; }
.login-error { color: var(--down); margin: 0; text-align: center; }