:root {
  --bg: #f6f7f9;
  --chart-bg: #ffffff;
  --panel: #ffffff;
  --line: #dde1e6;
  --grid: #eef0f3;
  --text: #12161b;
  --muted: #6c7682;
  --up: #089981;
  --down: #f23645;
  --flat: #8a939e;
  --tag: #12161b;
  --tag-text: #ffffff;
  --up-soft: rgb(8 153 129 / 0.1);
  --down-soft: rgb(242 54 69 / 0.1);
  --mono: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, monospace;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #0d1014;
    --chart-bg: #11151a;
    --panel: #161b21;
    --line: #262d35;
    --grid: #181e24;
    --text: #e7eaee;
    --muted: #7c8691;
    --up: #2ebd85;
    --down: #f6465d;
    --flat: #6b7480;
    --tag: #e7eaee;
    --tag-text: #0d1014;
    --up-soft: rgb(46 189 133 / 0.12);
    --down-soft: rgb(246 70 93 / 0.12);
  }
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.4 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  height: 100dvh;
  max-width: 1100px;
  margin: 0 auto;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) 0 env(safe-area-inset-left);
  -webkit-tap-highlight-color: transparent;
  -webkit-user-select: none;
  user-select: none;
  overflow: hidden;
}

button {
  font: inherit;
  color: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

button:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
}

/* ——— шапка ——— */

.top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 14px 16px 8px;
}

.ticker {
  font: 600 12px/1 var(--mono);
  letter-spacing: 0.08em;
  color: var(--muted);
}

.ticker span {
  font-family: inherit;
  letter-spacing: 0;
  font-weight: 400;
  margin-left: 4px;
}

.price {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-top: 4px;
}

.value {
  font: 600 36px/1 var(--mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.delta {
  font: 500 13px/1 var(--mono);
  color: var(--muted);
}
.delta.up {
  color: var(--up);
}
.delta.down {
  color: var(--down);
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  fill: var(--muted);
  margin: -4px -8px 0 0;
}
.icon-btn:hover {
  background: var(--panel);
}

/* ——— масштабы ——— */

.tfs {
  display: flex;
  gap: 2px;
  padding: 0 12px 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.tf {
  flex: 1 0 auto;
  padding: 7px 6px;
  border-radius: 8px;
  color: var(--muted);
  font: 500 13px/1 var(--mono);
}
.tf:hover {
  color: var(--text);
}
.tf[aria-pressed='true'] {
  color: var(--text);
  background: var(--panel);
  box-shadow: inset 0 0 0 1px var(--line);
}

/* ——— график ——— */

.chart-wrap {
  position: relative;
  min-height: 0;
  margin: 0 12px;
  border-radius: 14px;
  overflow: hidden;
  background: var(--chart-bg);
  box-shadow: inset 0 0 0 1px var(--line);
}

#chart {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: crosshair;
}

.legend {
  position: absolute;
  top: 8px;
  left: 10px;
  right: 56px;
  pointer-events: none;
  font: 12px/1.45 var(--mono);
  color: var(--muted);
}

.lg-date {
  color: var(--text);
  font-weight: 500;
}
.lg-now {
  color: var(--muted);
  font-weight: 400;
}

.lg-ohlc {
  display: flex;
  flex-wrap: wrap;
  column-gap: 10px;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.lg-ohlc i {
  font-style: normal;
  color: var(--muted);
  margin-right: 4px;
}
.lg-ohlc .chg.up {
  color: var(--up);
}
.lg-ohlc .chg.down {
  color: var(--down);
}
.lg-ohlc .lg-n {
  color: var(--muted);
}

.to-now {
  position: absolute;
  right: 56px;
  bottom: 34px;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 0 0 1px var(--line), 0 4px 14px rgb(0 0 0 / 0.12);
  font: 500 12px/1 var(--mono);
}

.demo-bar {
  position: absolute;
  left: 50%;
  bottom: 34px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 6px 5px 12px;
  border-radius: 999px;
  background: var(--tag);
  color: var(--tag-text);
  font-size: 12px;
  white-space: nowrap;
}
.demo-bar button {
  padding: 4px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--tag-text) 18%, transparent);
  color: inherit;
  font-weight: 600;
}

.empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 14px;
  padding: 24px;
  text-align: center;
  color: var(--muted);
  background: var(--chart-bg);
}
.empty p {
  max-width: 330px;
  margin: 0;
}
.empty b {
  color: var(--text);
}

.empty-candles {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 56px;
}
.empty-candles i {
  width: 10px;
  border-radius: 2px;
  position: relative;
  opacity: 0.8;
}
.empty-candles i::before {
  content: '';
  position: absolute;
  left: 4.5px;
  width: 1px;
  top: -8px;
  bottom: -8px;
  background: inherit;
}
.empty-candles i:nth-child(1) {
  height: 20px;
  margin-bottom: 10px;
  background: var(--down);
}
.empty-candles i:nth-child(2) {
  height: 16px;
  margin-bottom: 4px;
  background: var(--up);
}
.empty-candles i:nth-child(3) {
  height: 26px;
  margin-bottom: 14px;
  background: var(--up);
}
.empty-candles i:nth-child(4) {
  height: 12px;
  margin-bottom: 30px;
  background: var(--down);
}

.ghost {
  padding: 9px 16px;
  border-radius: 10px;
  box-shadow: inset 0 0 0 1px var(--line);
  color: var(--text);
  font-weight: 500;
}
.ghost:hover {
  background: var(--panel);
}

/* ——— управление ——— */

.controls {
  padding: 12px 12px calc(14px + env(safe-area-inset-bottom));
  display: grid;
  gap: 10px;
}

.strength {
  display: flex;
  align-items: center;
  gap: 12px;
}

.strength-label {
  font-size: 13px;
  color: var(--muted);
  width: 70px;
}

.chips {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  padding: 3px;
  border-radius: 12px;
  background: var(--panel);
  box-shadow: inset 0 0 0 1px var(--line);
}

.chip {
  height: 34px;
  border-radius: 9px;
  font: 600 14px/1 var(--mono);
  color: var(--muted);
  transition: background 0.15s, color 0.15s;
}
.chip[aria-pressed='true'] {
  background: var(--text);
  color: var(--bg);
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.act {
  height: 76px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-family: var(--mono);
  transition: transform 0.08s, filter 0.15s;
}
.act .sign {
  font-size: 38px;
  font-weight: 500;
  line-height: 1;
  margin-top: -3px;
}
.act .amt {
  font-size: 26px;
  font-weight: 600;
}
.act.up {
  background: var(--up-soft);
  color: var(--up);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--up) 30%, transparent);
}
.act.down {
  background: var(--down-soft);
  color: var(--down);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--down) 30%, transparent);
}
.act:active {
  transform: scale(0.97);
}
.act:hover {
  filter: brightness(1.08);
}
.act.pulse {
  animation: pulse 0.45s ease-out;
}
.act.up.pulse {
  --glow: var(--up);
}
.act.down.pulse {
  --glow: var(--down);
}

@keyframes pulse {
  from {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--glow) 55%, transparent);
  }
  to {
    box-shadow: 0 0 0 16px transparent;
  }
}

/* ——— тост ——— */

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(190px + env(safe-area-inset-bottom));
  transform: translate(-50%, 12px);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 8px 8px 14px;
  border-radius: 12px;
  background: var(--tag);
  color: var(--tag-text);
  font: 500 13px/1 var(--mono);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
}
.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}
.toast button {
  padding: 7px 10px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--tag-text) 16%, transparent);
  color: inherit;
  font: 600 13px/1 -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ——— меню ——— */

.menu {
  width: min(340px, calc(100vw - 32px));
  padding: 8px;
  border: 0;
  border-radius: 16px;
  background: var(--panel);
  color: var(--text);
  box-shadow: 0 0 0 1px var(--line), 0 20px 50px rgb(0 0 0 / 0.3);
}
.menu::backdrop {
  background: rgb(0 0 0 / 0.4);
}
.menu-head {
  padding: 8px 12px 10px;
  font-size: 13px;
  color: var(--muted);
}
.menu > button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px;
  border-radius: 10px;
}
.menu > button:hover {
  background: var(--grid);
}
.menu .danger {
  color: var(--down);
}
.menu-note {
  margin: 6px 12px 8px;
  font-size: 12px;
  color: var(--muted);
}
kbd {
  font: 11px var(--mono);
  padding: 1px 5px;
  border-radius: 4px;
  box-shadow: inset 0 0 0 1px var(--line);
}

@media (min-width: 720px) {
  .controls {
    grid-template-columns: 1fr 1.3fr;
    align-items: center;
    gap: 16px;
  }
  .act {
    height: 64px;
  }
  .toast {
    bottom: 110px;
  }
}