/* ============================================================
   FundingRateArb -- unified with BN_Stock monitor panel theme
   Design: amber #E8A33D on zinc-950, Geist + Geist Mono
   ============================================================ */

:root {
  --accent: #E8A33D;
  --accent-hi: #F2B45A;
  --bg: #0A0A0B;
  --surface: #111113;
  --elevated: #171719;
  --line: #1F1F23;
  --fg: #FFFFFF;
  --muted: #ffed57;
  --dim: #FFFFFF;
  --pos: #4ADE80;
  --neg: #F87171;
  --radius: 8px;
  --radius-sm: 4px;
  --radius-full: 9999px;
}

* { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; box-sizing: border-box; }
*::-webkit-scrollbar { width: 6px; height: 6px; }
*::-webkit-scrollbar-track { background: var(--bg); }
*::-webkit-scrollbar-thumb { background: var(--line); border-radius: 3px; }
*::-webkit-scrollbar-thumb:hover { background: var(--accent); }

html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font-family: 'Geist', system-ui, sans-serif;
  overflow-x: hidden;
}
::selection { background: var(--accent); color: var(--bg); }

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.03em; line-height: 1.05; }
h1 { font-size: 14px; }
h2 { font-size: 20px; }
h3 { font-size: 16px; color: var(--fg); margin: 1rem 0 0.25rem; }
p { margin: 0; }
strong { font-weight: 600; }
small { font-size: 12px; color: var(--dim); }
a { color: inherit; text-decoration: none; }

/* ---- Layout shell ---- */
.app-shell { min-height: 100dvh; display: flex; flex-direction: column; }

/* ---- Buttons ---- */
.icon-button {
  display: flex; align-items: center; justify-content: center;
  height: 36px; padding: 0 12px; border-radius: var(--radius-sm);
  background: transparent; border: 1px solid var(--line); color: var(--muted);
  font-family: 'Geist Mono', monospace; font-size: 12px;
  cursor: pointer; transition: color 0.2s, border-color 0.2s;
}
.icon-button:hover { color: var(--accent); border-color: var(--accent); }

/* ---- KPI strip ---- */
.kpi-strip {
  display: grid; grid-template-columns: repeat(5, 1fr) auto; gap: 1px;
  background: var(--line); border-bottom: 1px solid var(--line);
}
.kpi-item { background: var(--bg); padding: 20px; }
.kpi-label { font-family: 'Geist Mono', monospace; font-size: 15px; color: var(--dim); display: block; margin-bottom: 8px; }
.kpi-item strong { font-family: 'Geist Mono', monospace; font-variant-numeric: tabular-nums; font-size: 24px; }
.kpi-item small { display: block; margin-top: 4px; }
.kpi-controls { display: flex; align-items: center; gap: 8px; padding: 20px; }
.kpi-item.accent-amber strong { color: var(--accent); }
.kpi-item.accent-green strong { color: var(--pos); }

@media (max-width: 768px) {
  .kpi-strip { grid-template-columns: repeat(2, 1fr); }
}

/* ---- Main ---- */
main { flex: 1; }

/* ---- Section ---- */
section { padding: 24px; border-bottom: 1px solid var(--line); }
section h2 { margin-bottom: 16px; }

.hint { color: var(--muted); font-family: 'Geist Mono', monospace; font-size: 11px; margin: 0.25rem 0 0.5rem; }

/* ---- Table ---- */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th {
  font-family: 'Geist Mono', monospace; font-size: 15px; font-weight: 400;
  color: var(--dim); text-align: left; padding: 12px;
  border-bottom: 1px solid var(--line); white-space: nowrap;
}
td { padding: 12px; border-bottom: 1px solid rgba(31,31,35,0.5); vertical-align: top; }
tr:hover td { background: rgba(232,163,61,0.04); }

.exchange-table { font-size: 13px; }

/* ---- Buttons ---- */
.btn {
  display: flex; align-items: center; gap: 6px;
  font-family: 'Geist Mono', monospace; font-size: 12px;
  background: transparent; border: 1px solid var(--line); color: var(--muted);
  padding: 6px 12px; border-radius: var(--radius-sm); cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.btn:hover { color: var(--accent); border-color: var(--accent); }
.btn.danger { border-color: rgba(248,113,113,0.3); color: var(--neg); }
.btn.danger:hover { border-color: var(--neg); background: rgba(248,113,113,0.08); }

/* ---- States ---- */
td.error { color: var(--neg); }
td.empty { color: var(--muted); text-align: center; font-family: 'Geist Mono', monospace; font-size: 12px; }
.pos { color: var(--pos); }
.neg { color: var(--neg); }

/* ---- Fund summary table ---- */
#fund-table tr:last-child td { border-top: 1px solid var(--line); font-weight: 600; }

/* ---- Login dialog ---- */
.login-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(10,10,11,0.8); backdrop-filter: blur(8px);
  display: none; align-items: center; justify-content: center; z-index: 100;
}
.login-overlay.active { display: flex; }
.login-box {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px; width: 320px; display: flex; flex-direction: column; gap: 16px;
}
.login-box h2 { font-size: 18px; }
.login-box input {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 10px 12px; color: var(--fg); font-family: 'Geist Mono', monospace; font-size: 14px;
  outline: none; transition: border-color 0.2s;
}
.login-box input:focus { border-color: var(--accent); }
.login-box .btn { justify-content: center; padding: 10px; }
.login-error { color: var(--neg); font-size: 12px; font-family: 'Geist Mono', monospace; display: none; }
.login-error.active { display: block; }

/* ---- Rules panel ---- */
.panel { padding: 24px; border-bottom: 1px solid var(--line); }
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
.btn-primary {
  font-family: 'Geist Mono', monospace; font-size: 12px;
  background: rgba(232,163,61,0.1); border: 1px solid rgba(232,163,61,0.3);
  color: var(--accent);
  padding: 6px 16px; border-radius: var(--radius-sm); cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.btn-primary:hover { background: rgba(232,163,61,0.18); border-color: var(--accent); color: var(--accent-hi); }

.rules-group { margin-bottom: 24px; }
.rules-group h3 {
  display: flex; align-items: center; gap: 12px;
  color: var(--muted); font-size: 14px;
}
.rules-group h3 select {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm);
  color: var(--fg); font-family: 'Geist Mono', monospace; font-size: 12px;
  padding: 4px 8px; outline: none; cursor: pointer;
}
.rules-group h3 select:focus { border-color: var(--accent); }

.rule-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; margin-top: 12px;
  transition: border-color 0.2s;
}
.rule-card:hover { border-color: rgba(232,163,61,0.25); }

.rule-toggle {
  display: flex; align-items: center; gap: 10px; cursor: pointer;
  font-size: 14px;
}
.rule-toggle input[type="checkbox"] {
  appearance: none; width: 16px; height: 16px;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--bg); cursor: pointer; position: relative;
  transition: background 0.2s, border-color 0.2s;
}
.rule-toggle input[type="checkbox"]:checked {
  background: var(--accent); border-color: var(--accent);
}
.rule-toggle input[type="checkbox"]:checked::after {
  content: ""; position: absolute; left: 4px; top: 1px;
  width: 5px; height: 9px; border: solid var(--bg);
  border-width: 0 2px 2px 0; transform: rotate(45deg);
}
.rule-toggle input[type="checkbox"]:disabled {
  background: rgba(232,163,61,0.4); border-color: rgba(232,163,61,0.4); cursor: not-allowed;
}
.rule-toggle input[type="checkbox"]:disabled:checked {
  background: var(--accent); border-color: var(--accent);
}
.rule-toggle strong { color: var(--fg); }
.rule-toggle code {
  font-family: 'Geist Mono', monospace; font-size: 11px;
  color: var(--muted); background: var(--bg);
  padding: 2px 6px; border-radius: var(--radius-sm); border: 1px solid var(--line);
}

.rule-desc {
  color: var(--dim); font-size: 12px; line-height: 1.5;
  margin: 8px 0 12px 26px;
}

.rule-params {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px; margin-left: 26px;
}
.rule-param {
  display: flex; flex-direction: column; gap: 4px;
}
.rule-param span {
  font-family: 'Geist Mono', monospace; font-size: 11px; color: var(--muted);
  cursor: help;
}
.rule-param input {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 8px 10px; color: var(--fg);
  font-family: 'Geist Mono', monospace; font-size: 13px;
  font-variant-numeric: tabular-nums; outline: none;
  transition: border-color 0.2s;
}
.rule-param input:focus { border-color: var(--accent); }

@media (max-width: 768px) {
  .rule-params { grid-template-columns: 1fr; }
}