/* Dark-first, mobile-first. Telegram is overwhelmingly a phone surface, and
   the Mini App viewport is narrow; the two-column layout is the enhancement,
   not the baseline. */

:root {
  --bg: #0d0f12;
  --panel: #16191f;
  --panel-2: #1c2027;
  --line: #262b33;
  --text: #e8eaed;
  --muted: #8b93a1;
  --accent: #4a9eff;
  --good: #00c896;
  --warn: #f5a524;
  --bad: #ff5c5c;
  --radius: 12px;
}

/* Telegram exposes the user's theme; follow it where it is available so the
   app doesn't sit as a bright rectangle inside a dark client. */
body.tg-light {
  --bg: #ffffff;
  --panel: #f4f5f7;
  --panel-2: #eceef1;
  --line: #dcdfe4;
  --text: #14171a;
  --muted: #5f6774;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 ui-sans-serif, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: none;
}

main {
  padding: 0 12px calc(20px + env(safe-area-inset-bottom));
  max-width: 1180px;
  margin: 0 auto;
}

/* ─────────────────────────────── topbar ─────────────────────────── */

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px calc(10px + env(safe-area-inset-top));
  padding-top: max(10px, env(safe-area-inset-top));
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.symbol { display: flex; align-items: center; gap: 10px; min-width: 0; }

.symbol-mark {
  position: relative;
  flex: none;
  width: 38px; height: 38px;
  display: grid; place-items: center;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  font-weight: 700; font-size: 13px;
}
.symbol-mark i {
  position: absolute; top: -6px; right: -6px;
  background: var(--accent); color: #04121f;
  font-style: normal; font-size: 9px; font-weight: 700;
  padding: 1px 4px; border-radius: 6px;
}

.symbol-text { min-width: 0; }

#symbol-select {
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--text);
  font: 600 15px/1.2 inherit;
  padding: 0 18px 0 0;
  max-width: 62vw;
  text-overflow: ellipsis;
  cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%),
                    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: right 6px center, right 1px center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
#symbol-select option { background: var(--panel); color: var(--text); }

.symbol-price { display: flex; align-items: baseline; gap: 6px; font-size: 13px; color: var(--muted); }
#spot { font-variant-numeric: tabular-nums; color: var(--text); font-weight: 600; }
.change { font-variant-numeric: tabular-nums; font-size: 12px; }
.change[data-dir="up"] { color: var(--good); }
.change[data-dir="down"] { color: var(--bad); }

.conn {
  flex: none;
  font-size: 11px;
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  white-space: nowrap;
}
.conn[data-state="stream"] { color: var(--good); border-color: color-mix(in srgb, var(--good) 40%, transparent); }
.conn[data-state="poll"]   { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }
.conn[data-state="down"]   { color: var(--bad);  border-color: color-mix(in srgb, var(--bad) 40%, transparent); }

/* ──────────────────────────────── chart ─────────────────────────── */

.chart-wrap {
  position: relative;
  height: 260px;
  margin-top: 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
/* Absolute fill so the canvas can follow a stretched grid cell — a canvas
   with `height: auto` collapses instead of growing. */
#chart { position: absolute; inset: 0; display: block; width: 100%; height: 100%; }

/* ──────────────────────────────── cards ─────────────────────────── */

.rail { display: grid; gap: 10px; margin-top: 10px; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
}
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 10px; }
.card-head h2 { margin: 0; font-size: 12px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); }

.badge {
  font-size: 10px; font-weight: 700; letter-spacing: .06em;
  padding: 3px 8px; border-radius: 999px;
  background: var(--panel-2); color: var(--muted);
}
.badge[data-tone="good"] { background: color-mix(in srgb, var(--good) 16%, transparent); color: var(--good); }
.badge[data-tone="warn"] { background: color-mix(in srgb, var(--warn) 16%, transparent); color: var(--warn); }
.badge[data-tone="bad"]  { background: color-mix(in srgb, var(--bad) 16%, transparent);  color: var(--bad); }

/* market state — floats over the chart */
.chart-overlay {
  position: absolute;
  top: 10px; right: 10px;
  z-index: 2;
  pointer-events: none; /* never block dragging the chart underneath */
  max-width: min(215px, calc(100% - 20px));
}
.sig-float {
  pointer-events: auto;
  padding: 10px 12px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, .35);
}

.sig-head { display: flex; align-items: center; gap: 7px; }
.sig-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); flex: none; }
.sig-title { font-size: 10px; font-weight: 700; letter-spacing: .08em; color: var(--muted); }
.sig-row { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; margin: 4px 0 8px; }
.sig-value { font-size: 26px; font-weight: 700; line-height: 1.1; letter-spacing: -.01em; }
.sig-edge { font-size: 12px; font-variant-numeric: tabular-nums; color: var(--muted); white-space: nowrap; }

/* Break-even sits at the centre; the fill grows out toward whichever side
   the measured edge falls on. */
.sig-bar { position: relative; height: 5px; border-radius: 999px; background: var(--panel-2); overflow: hidden; }
.sig-mid { position: absolute; left: 50%; top: 0; width: 1px; height: 100%; background: var(--muted); opacity: .55; z-index: 1; }
.sig-bar-fill { position: absolute; top: 0; height: 100%; width: 0; background: var(--muted); transition: width .35s ease, left .35s ease; }

.sig-caption { margin-top: 7px; font-size: 11px; line-height: 1.4; color: var(--muted); }
.sig-reasons { margin: 6px 0 0; padding-left: 14px; font-size: 11px; line-height: 1.4; color: var(--muted); }
.sig-reasons:empty { display: none; }
.sig-reasons li { margin-top: 2px; }

.sig[data-state="buy"]   .sig-dot, .sig[data-state="buy"]   .sig-bar-fill { background: var(--good); }
.sig[data-state="buy"]   .sig-value { color: var(--good); }
.sig[data-state="wait"]  .sig-dot, .sig[data-state="wait"]  .sig-bar-fill { background: var(--warn); }
.sig[data-state="wait"]  .sig-value { color: var(--warn); }
.sig[data-state="close"] .sig-dot, .sig[data-state="close"] .sig-bar-fill { background: var(--bad); }
.sig[data-state="close"] .sig-value { color: var(--bad); }

/* The overlay covers the top-right of the plot, so give the chart headroom. */
@media (max-width: 560px) {
  .chart-wrap { height: 320px; }
  .chart-overlay { max-width: min(190px, calc(100% - 16px)); top: 8px; right: 8px; }
  .sig-float { padding: 8px 10px; }
  .sig-row { flex-direction: column; align-items: flex-start; gap: 0; margin-bottom: 6px; }
  .sig-value { font-size: 21px; }
  .sig-caption { font-size: 10px; }
  .sig-reasons { display: none; } /* too cramped to be readable on a phone */
}

/* meters */
.meters { display: grid; gap: 9px; }
.meter { display: grid; grid-template-columns: 88px 1fr auto; align-items: center; gap: 9px; }
.meter-name { font-size: 12px; color: var(--muted); }
.meter-track { height: 5px; border-radius: 999px; background: var(--panel-2); overflow: hidden; }
.meter-fill { height: 100%; width: 0; border-radius: 999px; background: var(--muted); transition: width .35s ease; }
.meter[data-tone="good"] .meter-fill { background: var(--good); }
.meter[data-tone="warn"] .meter-fill { background: var(--warn); }
.meter[data-tone="bad"]  .meter-fill { background: var(--bad); }
.meter-right { font-size: 12px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.meter-value { font-weight: 600; }
.meter-note { color: var(--muted); }

/* stats strip */
.strip-current { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
.strip-list { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 2px; scrollbar-width: none; }
.strip-list::-webkit-scrollbar { display: none; }
.chip {
  flex: none;
  min-width: 34px;
  text-align: center;
  padding: 5px 8px;
  border-radius: 8px;
  background: var(--panel-2);
  font-size: 13px; font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.chip[data-latest="true"] { background: color-mix(in srgb, var(--accent) 20%, transparent); color: var(--accent); }
.muted { color: var(--muted); font-size: 12px; }

/* trade panel */
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); margin-bottom: 6px; }
.rate-row { display: flex; gap: 6px; flex-wrap: wrap; }
.rate {
  flex: 1 1 auto; min-width: 48px;
  padding: 8px 0;
  background: var(--panel-2);
  border: 1px solid transparent;
  border-radius: 9px;
  color: var(--text);
  font: 600 13px inherit;
  cursor: pointer;
}
.rate[data-active="true"] { border-color: var(--accent); color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); }
.stake {
  width: 100%;
  padding: 9px 11px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--text);
  font: 600 14px inherit;
}
.stats { display: grid; grid-template-columns: 1fr auto; gap: 7px 12px; margin: 0; padding-top: 10px; border-top: 1px solid var(--line); }
.stats dt { font-size: 12px; color: var(--muted); }
.stats dd { margin: 0; text-align: right; font-size: 13px; font-variant-numeric: tabular-nums; }
.stat-value { font-weight: 600; }
.stat-note { font-size: 11px; color: var(--muted); }
.stat-note[data-tone="warn"] { color: var(--warn); }

/* CTA */
.cta h2 { margin: 0 0 4px; font-size: 14px; }
.cta p { margin: 0 0 10px; font-size: 13px; color: var(--muted); }
.cta-btn {
  display: block; text-align: center;
  padding: 10px; border-radius: 9px;
  background: var(--accent); color: #04121f;
  font-weight: 700; text-decoration: none;
}
.cta-hidden { display: none; }

/* buy */
.buy {
  display: block;
  margin-top: 12px;
  padding: 14px;
  text-align: center;
  background: var(--good);
  color: #04231b;
  font-weight: 700;
  font-size: 15px;
  border-radius: var(--radius);
  text-decoration: none;
}
.buy:active { opacity: .85; }

.disclaimer { margin: 12px 2px 0; font-size: 11px; line-height: 1.5; color: var(--muted); }

/* ─────────────────────────── wider viewports ────────────────────── */

@media (min-width: 820px) {
  main {
    display: grid;
    grid-template-columns: 1fr 330px;
    grid-template-areas:
      "chart rail"
      "chart buy"
      "disc  disc";
    gap: 12px;
    align-items: start;
  }
  /* Stretch across both rows so the chart matches the rail's height instead
     of leaving a dead gap beneath it. */
  .chart-wrap { grid-area: chart; margin-top: 12px; height: auto; align-self: stretch; min-height: 440px; }
  .rail { grid-area: rail; margin-top: 12px; }
  .buy { grid-area: buy; margin-top: 0; }
  .disclaimer { grid-area: disc; }
}

@media (prefers-reduced-motion: reduce) {
  .sig-bar-fill, .meter-fill { transition: none; }
}