/* ── Trading API Terminal ─────────────────────────────────── */
/* Bloomberg-style dark financial dashboard                      */

:root {
  --bg-primary: #0a0a0c;
  --bg-secondary: #0f1014;
  --bg-card: #14161b;
  --bg-hover: #1a1d24;
  --border: #1e2130;
  --border-active: #2a2f3d;
  --text-primary: #d4d4d8;
  --text-secondary: #8b8fa3;
  --text-muted: #555a6e;
  --accent-green: #00e676;
  --accent-red: #ff3d4f;
  --accent-cyan: #00bcd4;
  --accent-yellow: #ffc107;
  --accent-blue: #448aff;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Cascadia Code', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 3px;
  --gap: 8px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  overflow: hidden;
}

/* ── Layout ────────────────────────────────────────────────── */

#app {
  display: grid;
  grid-template-rows: 36px 1fr 32px;
  grid-template-columns: 260px 1fr 260px;
  grid-template-areas:
    "topbar topbar topbar"
    "sidebar main watchlist"
    "ticker ticker ticker";
  height: 100vh;
  gap: 0;
}

#topbar    { grid-area: topbar; }
#sidebar   { grid-area: sidebar; overflow-y: auto; }
#main      { grid-area: main; overflow-y: auto; }
#watchlist { grid-area: watchlist; overflow-y: auto; }
#ticker    { grid-area: ticker; }

/* ── Top Bar ───────────────────────────────────────────────── */

#topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  font-size: 11px;
}
#topbar .brand {
  color: var(--accent-cyan);
  font-weight: 700;
  letter-spacing: 1px;
}
#topbar .status-dot {
  width: 7px; height: 7px; border-radius: 50%; display: inline-block; margin-right: 6px;
}
#topbar .status-dot.connected { background: var(--accent-green); box-shadow: 0 0 6px var(--accent-green); }
#topbar .status-dot.disconnected { background: var(--accent-red); }
#topbar .api-url { color: var(--text-secondary); }
#topbar .clock { color: var(--text-muted); }

/* ── Tab Bar ───────────────────────────────────────────────── */

#tabbar {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
  position: sticky; top: 0; z-index: 10;
}
#tabbar button {
  background: none; border: none; color: var(--text-muted);
  padding: 8px 16px; cursor: pointer; font-family: var(--font-mono);
  font-size: 11px; text-transform: uppercase; letter-spacing: 1px;
  border-bottom: 2px solid transparent; transition: all 0.15s;
}
#tabbar button:hover { color: var(--text-primary); }
#tabbar button.active { color: var(--accent-cyan); border-bottom-color: var(--accent-cyan); }

/* ── Sidebar / Cards ───────────────────────────────────────── */

.panel { padding: var(--gap); }

.section-title {
  font-size: 10px; text-transform: uppercase; letter-spacing: 2px;
  color: var(--text-muted); padding: 8px 0; border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}

.stat-tile {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  margin-bottom: var(--gap);
}
.stat-tile .label { font-size: 10px; color: var(--text-muted); text-transform: uppercase; }
.stat-tile .value { font-size: 18px; font-weight: 700; color: var(--text-primary); margin-top: 2px; }
.stat-tile .sub { font-size: 10px; color: var(--text-secondary); margin-top: 2px; }

.gainer-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 4px 0; font-size: 11px;
}
.gainer-item .sym { color: var(--text-secondary); min-width: 48px; }
.gainer-item .change { min-width: 52px; text-align: right; }

/* ── Tables ────────────────────────────────────────────────── */

.table-terminal {
  width: 100%; border-collapse: collapse; font-size: 11px;
}
.table-terminal th {
  text-align: left; padding: 6px 8px; color: var(--text-muted);
  font-size: 10px; text-transform: uppercase; letter-spacing: 1px;
  border-bottom: 1px solid var(--border);
  cursor: pointer; user-select: none; position: sticky; top: 0;
  background: var(--bg-primary);
}
.table-terminal th:hover { color: var(--text-primary); }
.table-terminal th.sorted::after { content: ' ▼'; color: var(--accent-cyan); }
.table-terminal th.sorted.asc::after { content: ' ▲'; }
.table-terminal td {
  padding: 4px 8px; border-bottom: 1px solid rgba(30,33,48,0.5);
  white-space: nowrap;
}
.table-terminal tr:hover td { background: var(--bg-hover); }
.table-terminal .num { text-align: right; font-variant-numeric: tabular-nums; }

/* ── Colors ────────────────────────────────────────────────── */

.up   { color: var(--accent-green); }
.down { color: var(--accent-red); }
.muted { color: var(--text-muted); }
.accent { color: var(--accent-cyan); }

.badge { font-size: 10px; padding: 1px 6px; border-radius: 2px; }
.badge-up   { background: rgba(0,230,118,0.12); color: var(--accent-green); }
.badge-down { background: rgba(255,61,79,0.12); color: var(--accent-red); }
.badge-info { background: rgba(0,188,212,0.12); color: var(--accent-cyan); }

/* ── Sparkline ─────────────────────────────────────────────── */

.sparkline-wrap { width: 80px; height: 24px; display: inline-block; }
.sparkline-wrap canvas { width: 100%; height: 100%; }

/* ── Watchlist ─────────────────────────────────────────────── */

#watchlist { border-left: 1px solid var(--border); }
.watch-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 5px 10px; border-bottom: 1px solid rgba(30,33,48,0.3);
  cursor: pointer;
}
.watch-item:hover { background: var(--bg-hover); }
.watch-item .sym { font-weight: 600; }
.watch-item .price { text-align: right; }
.watch-item .change { text-align: right; font-size: 10px; min-width: 52px; }

.watch-add {
  display: flex; gap: 4px; padding: 8px;
}
.watch-add input {
  flex: 1; background: var(--bg-primary); border: 1px solid var(--border);
  color: var(--text-primary); padding: 6px 8px; font-family: var(--font-mono);
  font-size: 11px; border-radius: var(--radius);
}
.watch-add input:focus { outline: none; border-color: var(--accent-cyan); }
.watch-add button {
  background: var(--accent-cyan); color: #000; border: none;
  padding: 6px 12px; font-family: var(--font-mono); font-size: 10px;
  text-transform: uppercase; cursor: pointer; border-radius: var(--radius);
  font-weight: 700;
}

/* ── News ──────────────────────────────────────────────────── */

.news-item {
  padding: 6px 8px; border-bottom: 1px solid rgba(30,33,48,0.3);
  font-size: 11px;
}
.news-item .headline { color: var(--text-primary); text-decoration: none; }
.news-item .headline:hover { color: var(--accent-cyan); }
.news-item .meta { font-size: 10px; color: var(--text-muted); margin-top: 2px; }
.news-source-tabs { display: flex; gap: 4px; margin-bottom: 8px; }
.news-source-tabs button {
  background: var(--bg-card); border: 1px solid var(--border); color: var(--text-muted);
  padding: 4px 10px; cursor: pointer; font-family: var(--font-mono); font-size: 10px;
  border-radius: var(--radius);
}
.news-source-tabs button.active { border-color: var(--accent-cyan); color: var(--accent-cyan); }

/* ── Ticker Bar ────────────────────────────────────────────── */

#ticker {
  background: var(--bg-secondary); border-top: 1px solid var(--border);
  overflow: hidden; white-space: nowrap; padding: 0 8px;
  display: flex; align-items: center; font-size: 10px;
}
#ticker .ticker-wrap {
  display: flex; animation: ticker-scroll 60s linear infinite;
}
#ticker .ticker-item {
  padding: 0 24px; white-space: nowrap;
}
#ticker .ticker-item .sym { color: var(--accent-cyan); font-weight: 600; margin-right: 4px; }
@keyframes ticker-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ── Disconnected Overlay ──────────────────────────────────── */

#disconnected {
  display: none; position: fixed; bottom: 40px; left: 50%; transform: translateX(-50%);
  background: var(--accent-red); color: #fff; padding: 8px 20px; border-radius: var(--radius);
  font-size: 11px; z-index: 100; font-family: var(--font-mono);
}
#disconnected.show { display: block; }

/* ── Empty / Loading states ────────────────────────────────── */

.loading { color: var(--text-muted); padding: 16px; font-style: italic; }
.empty { color: var(--text-muted); padding: 16px; text-align: center; }
.error-card {
  background: rgba(255,61,79,0.08); border: 1px solid rgba(255,61,79,0.2);
  padding: 12px; border-radius: var(--radius); color: var(--accent-red);
}

/* ── Options filter form ───────────────────────────────────── */

.filter-form {
  display: flex; gap: 8px; flex-wrap: wrap; padding: 8px 0; align-items: end;
}
.filter-form label { font-size: 10px; color: var(--text-muted); display: block; }
.filter-form input, .filter-form select {
  background: var(--bg-primary); border: 1px solid var(--border);
  color: var(--text-primary); padding: 4px 8px; font-family: var(--font-mono);
  font-size: 11px; border-radius: var(--radius); width: 80px;
}
.filter-form input:focus, .filter-form select:focus {
  outline: none; border-color: var(--accent-cyan);
}
.filter-form button {
  background: var(--accent-cyan); color: #000; border: none;
  padding: 5px 14px; font-family: var(--font-mono); font-size: 10px;
  text-transform: uppercase; cursor: pointer; border-radius: var(--radius);
  font-weight: 700;
}

/* ── Score bar ─────────────────────────────────────────────── */

.score-bar {
  width: 60px; height: 6px; background: var(--bg-primary);
  border-radius: 3px; overflow: hidden; display: inline-block; vertical-align: middle;
}
.score-bar-fill {
  height: 100%; border-radius: 3px;
  background: linear-gradient(90deg, var(--accent-red), var(--accent-yellow), var(--accent-green));
}

/* ── Responsive ────────────────────────────────────────────── */

@media (max-width: 1024px) {
  #app { grid-template-columns: 1fr; grid-template-rows: 36px 1fr 32px; }
  #sidebar, #watchlist { display: none; }
  #app { grid-template-areas: "topbar" "main" "ticker"; }
}