:root {
  --bg: #101010;
  --panel: #171717;
  --panel-2: #1f1f1f;
  --text: #f4f6f8;
  --muted: #8e969f;
  --border: rgba(255, 255, 255, 0.11);
  --border-soft: rgba(255, 255, 255, 0.08);
  --green: #37d67a;
  --red: #ff445c;
  --amber: #f4b84b;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.42);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  padding: 24px 0;
  display: block;
  overflow-y: auto;
  background:
    radial-gradient(circle at 18% 12%, rgba(255, 255, 255, 0.06), transparent 28%),
    linear-gradient(145deg, #0b0b0b 0%, #151515 48%, #0c0c0d 100%);
  color: var(--text);
}

button {
  font: inherit;
}

.phone-shell {
  width: min(calc(100vw - 24px), 390px);
  min-height: min(calc(100vh - 48px), 780px);
  margin: 0 auto;
  padding: 14px 16px;
  display: grid;
  grid-template-rows: 66px 1fr 64px;
  gap: 14px;
  background: #121212;
  border: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow);
}

.app-header,
.content-panel,
.bottom-nav {
  border: 1px solid var(--border);
  background: rgba(24, 24, 24, 0.94);
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
}

.eyeline,
.section-label {
  margin: 0 0 3px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: 18px;
  line-height: 1.1;
  font-weight: 750;
}

.live-state {
  min-width: 72px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid rgba(55, 214, 122, 0.35);
  background: rgba(55, 214, 122, 0.08);
  color: var(--green);
  font-size: 12px;
  font-weight: 750;
}

.live-state.offline {
  border-color: rgba(255, 68, 92, 0.35);
  background: rgba(255, 68, 92, 0.08);
  color: var(--red);
}

.pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 5px rgba(55, 214, 122, 0.14);
}

.content-panel {
  min-height: 0;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow: hidden;
}

.market-summary,
.update-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.market-summary strong {
  display: block;
  font-size: 24px;
  line-height: 1;
}

.summary-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.currency-button,
.refresh-button {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  cursor: pointer;
}

.currency-button {
  min-width: 42px;
  padding: 0 8px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.currency-button.active {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border);
}

.currency-button:hover,
.refresh-button:hover,
.nav-item:hover {
  border-color: var(--border);
}

svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.crypto-list {
  display: grid;
  gap: 12px;
}

.crypto-card {
  padding: 14px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent),
    var(--panel-2);
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.025);
}

.coin-top {
  display: grid;
  grid-template-columns: 46px 1fr auto;
  align-items: center;
  gap: 11px;
}

.coin-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border-soft);
  background: #151515;
  color: var(--amber);
  font-size: 19px;
  font-weight: 850;
}

.coin-card-eth .coin-mark {
  color: #b7c4ff;
}

.coin-name {
  display: block;
  font-size: 16px;
  font-weight: 800;
}

.coin-symbol {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.price {
  text-align: right;
  font-size: 18px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.trend-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.trend {
  min-height: 58px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(16, 16, 16, 0.72);
  text-align: left;
  cursor: pointer;
  transition: border-color 140ms ease, background-color 140ms ease, transform 140ms ease;
}

.trend span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 750;
}

.trend strong {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 850;
  font-variant-numeric: tabular-nums;
}

.trend.up strong {
  color: var(--green);
}

.trend.down strong {
  color: var(--red);
}

.trend.flat strong {
  color: var(--muted);
}

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

.trend.selected {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.14);
  transform: translateY(-1px);
}

.chart-panel {
  width: 100%;
  padding: 10px 10px 8px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(14, 14, 14, 0.86);
}

.chart-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.chart-meta span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.chart-meta strong {
  color: var(--text);
  font-size: 12px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.trend-chart {
  width: 100%;
  height: 96px;
  display: block;
}

.chart-grid-line {
  fill: none;
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 1;
}

.chart-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 20px;
}

.chart-overlay.hidden {
  display: none;
}

.chart-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(6px);
}

.chart-modal {
  position: relative;
  width: min(100%, 420px);
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(18, 18, 18, 0.96);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.5);
}

.chart-modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.chart-modal-header strong {
  display: block;
  font-size: 18px;
  line-height: 1.1;
}

.chart-close {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: var(--text);
  border: 1px solid var(--border-soft);
  background: var(--panel-2);
  cursor: pointer;
}

.chart-close:hover {
  border-color: var(--border);
}

.chart-modal-body {
  display: flex;
}

.settings-body {
  display: grid;
  gap: 12px;
}

.provider-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.provider-option {
  min-height: 72px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  color: var(--text);
  border: 1px solid var(--border-soft);
  background: rgba(16, 16, 16, 0.78);
  text-align: left;
  cursor: pointer;
}

.provider-option span {
  font-size: 14px;
  font-weight: 850;
}

.provider-option strong {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  line-height: 1.2;
}

.provider-option.selected {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(55, 214, 122, 0.45);
}

.provider-status {
  padding: 10px;
  color: var(--muted);
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(14, 14, 14, 0.8);
  font-size: 12px;
  font-weight: 750;
}

.update-strip {
  margin-top: auto;
  padding: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  color: var(--muted);
  font-size: 12px;
}

.update-strip strong {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.bottom-nav {
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-item {
  width: 48px;
  height: 44px;
  display: grid;
  place-items: center;
  color: var(--muted);
  border: 1px solid var(--border-soft);
  background: #171717;
  cursor: pointer;
}

.nav-item span {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.nav-item.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border);
}

.loading {
  padding: 24px 14px;
  color: var(--muted);
  border: 1px dashed rgba(255, 255, 255, 0.12);
}

@media (max-width: 430px) {
  body {
    padding: 0;
    background: #101010;
  }

  .phone-shell {
    width: 100vw;
    min-height: 100vh;
    box-shadow: none;
  }

  .chart-overlay {
    padding: 14px;
  }

  .chart-modal {
    width: 100%;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .pulse {
    animation: ping 1.7s ease-out infinite;
  }
}

@keyframes ping {
  0% {
    box-shadow: 0 0 0 0 rgba(55, 214, 122, 0.3);
  }
  100% {
    box-shadow: 0 0 0 10px rgba(55, 214, 122, 0);
  }
}