:root {
  --bg: #0b0e14;
  --panel: #131722;
  --panel-2: #1a1f2e;
  --border: #232838;
  --text: #d6dae3;
  --muted: #6b7385;
  --accent: #5b8cff;
  --accent-2: #9b6bff;
  --green: #26a69a;
  --red: #ef5350;
  --amber: #f5c518;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background:
    radial-gradient(1200px 600px at 80% -10%, #1b2440 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 0%, #20183a 0%, transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ---- top bar ---- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  background: rgba(19, 23, 34, 0.7);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 20;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: baseline; gap: 10px; }
.logo {
  font-size: 22px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 8px rgba(91, 140, 255, 0.5));
}
.brand-name { font-weight: 700; font-size: 20px; letter-spacing: -0.02em; }
.brand-sub {
  font-size: 12px; color: var(--muted); text-transform: uppercase;
  letter-spacing: 0.18em;
}

.controls { display: flex; align-items: flex-end; gap: 14px; flex-wrap: wrap; }
.ctrl { display: flex; flex-direction: column; gap: 5px; }
.ctrl span { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.ctrl select, .ctrl input {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 9px;
  font-size: 14px;
  font-family: "JetBrains Mono", monospace;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.ctrl select:focus, .ctrl input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91, 140, 255, 0.18);
}
.ctrl input { width: 90px; }

.toggles { display: flex; gap: 8px; }
.toggle {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 9px 12px;
  border-radius: 9px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s;
}
.toggle.on { color: var(--text); border-color: var(--accent); box-shadow: 0 0 0 3px rgba(91, 140, 255, 0.12); }
.toggle:hover { transform: translateY(-1px); }

/* ---- layout ---- */
.layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 18px;
  padding: 18px 22px;
  height: calc(100vh - 64px);
}
@media (max-width: 1100px) {
  .layout { grid-template-columns: 1fr; height: auto; }
}

.chart-card, .stats-card, .feed-card {
  background: linear-gradient(180deg, var(--panel) 0%, #10141e 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.chart-card { display: flex; flex-direction: column; overflow: hidden; position: relative; }
.chart-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--border);
}
.chart-head h2 { margin: 0; font-size: 17px; font-weight: 600; letter-spacing: -0.01em; }
.legend { display: flex; gap: 16px; font-size: 12px; color: var(--muted); font-family: "JetBrains Mono", monospace; }
.legend .dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 5px; vertical-align: middle; }
#chart { flex: 1; min-height: 420px; }

.hover-tip {
  position: absolute; top: 64px; left: 22px;
  background: rgba(10, 13, 20, 0.92);
  border: 1px solid var(--border);
  border-radius: 9px; padding: 8px 12px;
  font-family: "JetBrains Mono", monospace; font-size: 12px;
  pointer-events: none; opacity: 0; transition: opacity 0.12s;
  white-space: pre; z-index: 5;
}

/* ---- sidebar ---- */
.sidebar { display: flex; flex-direction: column; gap: 18px; min-height: 0; }
.stats-card { padding: 16px 18px; }
.stats-card h3 { margin: 0 0 12px; font-size: 14px; font-weight: 600; }
.muted { color: var(--muted); font-weight: 400; }
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.stat {
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 10px; padding: 10px 12px;
}
.stat .k { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.stat .v { font-size: 18px; font-weight: 600; font-family: "JetBrains Mono", monospace; margin-top: 3px; }
.v.pos { color: var(--green); }
.v.neg { color: var(--red); }
.disclaimer { font-size: 11px; color: var(--muted); margin: 12px 0 0; line-height: 1.5; }

.feed-card { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-height: 200px; }
.feed-tabs { display: flex; border-bottom: 1px solid var(--border); }
.tab {
  flex: 1; background: none; border: none; color: var(--muted);
  padding: 12px; font-size: 13px; cursor: pointer; border-bottom: 2px solid transparent;
  transition: all 0.15s;
}
.tab.on { color: var(--text); border-bottom-color: var(--accent); }
.feed { overflow-y: auto; padding: 8px; flex: 1; }

.feed-item {
  display: block; width: 100%; text-align: left;
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 10px; padding: 10px 12px; margin-bottom: 8px;
  cursor: pointer; transition: all 0.12s; color: inherit; text-decoration: none;
}
.feed-item:hover { border-color: var(--accent); transform: translateX(2px); }
.feed-item .row1 { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.feed-item .date { font-family: "JetBrains Mono", monospace; font-size: 12px; color: var(--muted); }
.feed-item .tag {
  font-size: 10px; padding: 2px 7px; border-radius: 999px;
  background: rgba(245, 197, 24, 0.14); color: var(--amber); font-weight: 600;
}
.feed-item .tag.buy { background: rgba(38, 166, 154, 0.16); color: var(--green); }
.feed-item .tag.sell { background: rgba(239, 83, 80, 0.16); color: var(--red); }
.feed-item .label { font-size: 13px; margin-top: 5px; line-height: 1.4; }
.feed-item .ret { font-family: "JetBrains Mono", monospace; font-size: 13px; font-weight: 600; }
.feed-item .ret.pos { color: var(--green); }
.feed-item .ret.neg { color: var(--red); }

.error-banner {
  position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%);
  background: rgba(239, 83, 80, 0.15); border: 1px solid var(--red);
  color: #ffb4b2; padding: 10px 18px; border-radius: 10px; font-size: 13px; z-index: 50;
}
.hidden { display: none; }

/* scrollbar */
.feed::-webkit-scrollbar { width: 8px; }
.feed::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; }