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

:root,
[data-theme="dark"] {
  --bg:           #060608;
  --surface:      #0e0e12;
  --border:       #1c1c24;
  --text:         #e8e8ec;
  --muted:        #6b6b78;
  --btc:          #f7931a;
  --btc-dim:      rgba(247, 147, 26, 0.15);
  --live:         #22c55e;
  --live-glow:    rgba(34, 197, 94, 0.45);
  --warn:         #eab308;
  --warn-glow:    rgba(234, 179, 8, 0.45);
  --error:        #ef4444;
  --error-glow:   rgba(239, 68, 68, 0.45);
  --chart-glow:   rgba(247, 147, 26, 0.04);
  --chart-edge:   rgba(247, 147, 26, 0.08);
  --chart-base:   rgba(247, 147, 26, 0.06);
  --tx-shadow:    0 1px 6px rgba(0, 0, 0, 0.9);
  --input-bg:     #060608;
  --btn-ghost-hover-border: #ff4444;
  --btn-ghost-hover-color:  #ff6b6b;
  --sidebar-w:    300px;
  --header-h:     52px;
}

[data-theme="light"] {
  --bg:           #f5f5f8;
  --surface:      #ffffff;
  --border:       #dde0e8;
  --text:         #12121a;
  --muted:        #5c5c6e;
  --btc:          #d97706;
  --btc-dim:      rgba(217, 119, 6, 0.12);
  --live:         #16a34a;
  --live-glow:    rgba(22, 163, 74, 0.35);
  --warn:         #ca8a04;
  --warn-glow:    rgba(202, 138, 4, 0.35);
  --error:        #dc2626;
  --error-glow:   rgba(220, 38, 38, 0.35);
  --chart-glow:   rgba(217, 119, 6, 0.07);
  --chart-edge:   rgba(217, 119, 6, 0.12);
  --chart-base:   rgba(217, 119, 6, 0.08);
  --tx-shadow:    0 1px 4px rgba(255, 255, 255, 0.9), 0 0 1px rgba(0, 0, 0, 0.25);
  --input-bg:     #f0f0f4;
  --btn-ghost-hover-border: #dc2626;
  --btn-ghost-hover-color:  #dc2626;
}

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: 'Outfit', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

html { color-scheme: dark; }
html[data-theme="light"] { color-scheme: light; }

.app {
  display: grid;
  grid-template-rows: var(--header-h) 1fr;
  height: 100vh;
  width: 100vw;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btc-icon {
  width: 28px;
  height: 28px;
  background: var(--btc);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 0.85rem;
  color: #000;
}

.brand h1 {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand span {
  color: var(--muted);
  font-weight: 300;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: none;
}

.live-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--live);
}

.live-badge--paused {
  color: var(--muted);
}

.live-badge--paused .live-dot {
  background: var(--muted);
  box-shadow: none;
  animation: none;
}
.live-badge--error { color: var(--error); }

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--live);
  box-shadow: 0 0 8px var(--live-glow);
  animation: pulse 1.8s ease-in-out infinite;
}

.live-badge--warn .live-dot {
  background: var(--warn);
  box-shadow: 0 0 8px var(--warn-glow);
}

.live-badge--error .live-dot {
  background: var(--error);
  box-shadow: 0 0 8px var(--error-glow);
  animation: none;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.85); }
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.header-stats {
  display: flex;
  gap: 2rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--muted);
}

.header-stats strong {
  color: var(--text);
  font-weight: 600;
}

.main {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-w);
  overflow: hidden;
  position: relative;
}

.chart-wrap {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 85% 50%, var(--chart-glow) 0%, transparent 70%),
    var(--bg);
}

.chart-labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

.y-label {
  position: absolute;
  left: 1rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--muted);
  transform: translateY(-50%);
}

.x-label {
  position: absolute;
  bottom: 0.6rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--muted);
  transform: translateX(-50%);
}

.axis-title {
  position: absolute;
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  z-index: 2;
}

.axis-title--y {
  left: 0.5rem;
  top: 50%;
  transform: rotate(-90deg) translateX(-50%);
  transform-origin: left center;
}

.axis-title--x {
  bottom: 0.15rem;
  left: 50%;
  transform: translateX(-50%);
}

#chart {
  display: block;
  width: 100%;
  height: 100%;
}

.tx-labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 3;
}

.tx-tag {
  position: absolute;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--btc);
  white-space: nowrap;
  transform: translate(-50%, -100%);
  transition: font-size 0.12s ease, opacity 0.6s ease, filter 0.12s ease;
  text-shadow: var(--tx-shadow);
  animation: fadeIn 0.35s ease;
  z-index: 1;
}

.tx-tag.is-hovered {
  font-size: 2.1rem;
  font-weight: 700;
  z-index: 200;
  filter: drop-shadow(0 2px 14px var(--btc-dim));
  letter-spacing: -0.02em;
}

.tx-tag.fading { opacity: 0; }
.tx-tag.fading.is-hovered { opacity: 1; }

.chart-wrap.is-hovering-tx { cursor: pointer; }

@keyframes fadeIn {
  from { opacity: 0; transform: translate(-50%, -80%); }
  to   { opacity: 1; transform: translate(-50%, -100%); }
}

.now-line {
  position: absolute;
  top: 0;
  bottom: 2rem;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--btc) 20%, var(--btc) 80%, transparent);
  opacity: 0.35;
  z-index: 1;
  pointer-events: none;
}

.now-tag {
  position: absolute;
  top: 0.5rem;
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--btc);
  opacity: 0.7;
  transform: translateX(-50%);
  font-family: 'JetBrains Mono', monospace;
}

.connection-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 6, 8, 0.75);
  z-index: 20;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

html[data-theme="light"] .connection-overlay {
  background: rgba(245, 245, 248, 0.85);
}

.connection-overlay.is-visible { opacity: 1; }

.connection-overlay p {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--error);
}

.paused-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background: rgba(6, 6, 8, 0.55);
  z-index: 15;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s ease;
  text-align: center;
  padding: 2rem;
}

html[data-theme="light"] .paused-overlay {
  background: rgba(245, 245, 248, 0.72);
}

.paused-overlay.is-visible { opacity: 1; }

.paused-overlay p {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--btc);
}

.paused-overlay span {
  font-size: 0.88rem;
  color: var(--muted);
  max-width: 22rem;
  line-height: 1.45;
}

.paused-overlay strong { color: var(--text); }

.sidebar {
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--border);
  background: var(--surface);
  padding: 1.25rem;
  gap: 1.25rem;
  overflow-y: auto;
}

.panel-title {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.accum-block {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.accum-value {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  line-height: 1.1;
  word-break: break-all;
}

.accum-value--btc {
  font-size: 1.55rem;
  color: var(--btc);
}

.accum-value--fiat {
  font-size: 1.1rem;
  color: var(--text);
}

.accum-unit {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--muted);
}

.divider {
  height: 1px;
  background: var(--border);
}

.tx-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}

.tx-count-label {
  font-size: 0.72rem;
  color: var(--muted);
  margin-top: 0.2rem;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.control-row {
  display: flex;
  gap: 0.4rem;
}

.input-wrap {
  flex: 1;
  position: relative;
}

.input-wrap span {
  position: absolute;
  left: 0.65rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.72rem;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  pointer-events: none;
}

input[type="number"] {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  padding: 0.55rem 0.65rem 0.55rem 2.2rem;
  outline: none;
  transition: border-color 0.2s;
  -moz-appearance: textfield;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; }

input[type="number"]:focus { border-color: var(--btc); }

.btn {
  border: none;
  border-radius: 6px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  padding: 0.55rem 0.85rem;
  transition: background 0.15s, transform 0.1s;
  white-space: nowrap;
}

.btn:active { transform: scale(0.97); }

.btn--primary {
  background: var(--btc);
  color: #000;
}

.btn--primary:hover { background: #ff9f2e; }

.btn--ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  border-color: var(--btn-ghost-hover-border);
  color: var(--btn-ghost-hover-color);
}

.btn--icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.btn--icon:hover {
  border-color: var(--btc);
  color: var(--btc);
}

.btn--full { width: 100%; padding: 0.65rem; }

.fiat-hint {
  font-size: 0.65rem;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  cursor: pointer;
  user-select: none;
}

.check-row input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: var(--btc);
  cursor: pointer;
  flex-shrink: 0;
}

.check-label {
  font-size: 0.78rem;
  color: var(--text);
  line-height: 1.3;
}

.check-hint {
  font-size: 0.62rem;
  color: var(--muted);
  margin-top: 0.15rem;
  padding-left: 1.35rem;
}