@font-face {
  font-family: "Mozilla Headline";
  src: url("../fonts/mozilla-headline/mozilla-headline-400.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Mozilla Headline";
  src: url("../fonts/mozilla-headline/mozilla-headline-600.ttf") format("truetype");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "Mozilla Headline";
  src: url("../fonts/mozilla-headline/mozilla-headline-700.ttf") format("truetype");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

:root {
  --bg: #e30917;
  --panel: #ffffff;
  --panel-2: #ffffff;
  --text: #111111;
  --ink: #111111;
  --line: rgba(17, 17, 17, 0.24);
  --line-inverse: rgba(17, 17, 17, 0.24);
  --page: #ffffff;
  --black: #111111;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--page);
  color: var(--text);
  font-family: "Mozilla Headline", "Arial Narrow", Arial, sans-serif;
}

img {
  display: block;
  width: 100%;
}

button,
input,
select {
  font: inherit;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  top: -48px;
  left: 12px;
  z-index: 20;
  padding: 10px 12px;
  background: var(--black);
  color: #ffffff;
  text-decoration: none;
}

.skip-link:focus {
  top: 12px;
}

.page-shell {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.masthead,
.stats-grid,
.compare-grid {
  display: grid;
  gap: 16px;
}

.masthead {
  grid-template-columns: 1fr;
}

.hero-panel,
.panel,
.footer-line {
  border: 2px solid var(--line);
  background: var(--panel);
}

.chart-panel {
  background: var(--panel-2);

  --chart-pad-left: 7.21%;
  --chart-pad-right: 9.3%;
}


.hero-panel {
  min-height: 360px;
  padding: 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: stretch;
}

.hero-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.hero-panel-inverse,
.stat-card-inverse,
.duel-side-inverse {
  background: var(--panel-2);
  color: var(--text);
  border-color: var(--line);
}

.hero-panel-inverse {
  background: var(--panel-2);
  color: var(--text);
  border-color: var(--line);
}

.eyebrow,
.panel-kicker,
.panel-note,
.compare-control span,
.slider-wrap > span,
.footer-line {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-panel h1,
.panel h2,
.stat-card > strong,
.compare-card > strong,
.duel-side strong {
  margin: 0;
  font-family: "Mozilla Headline", "Arial Narrow", Arial, sans-serif;
  text-transform: uppercase;
  line-height: 0.9;
}

.hero-panel h1 {
  color: var(--black);
}

.hero-panel h1 {
  max-width: 9ch;
  font-size: clamp(3.4rem, 7vw, 7rem);
}

.hero-readout {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 30px;
  color: var(--bg);
}

.hero-currency-stack {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1;
}

.hero-amount-label {
  margin: 6px 0 0;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--black);
}

.try-mark {
  font-family: "Mozilla Headline", "Arial Narrow", Arial, sans-serif;
  font-size: clamp(3rem, 6vw, 5rem);
  line-height: 0.8;
}

.hero-readout strong {
  font-size: clamp(4.6rem, 10vw, 8rem);
}

.hero-flag {
  width: 100%;
  height: auto;
  margin-bottom: auto;
}

.hero-x-link {
  text-decoration: none;
  border-bottom: 2px solid currentColor;
}

.hero-github-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  order: 2;
  padding: 10px 14px;
  border: 2px solid var(--black);
  background: transparent;
  color: var(--black);
  text-decoration: none;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-github-link img {
  width: 20px;
  height: 20px;
}

.hero-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  justify-content: flex-end;
  width: 100%;
}

.hero-share-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  order: 1;
  padding: 12px 28px;
  background: var(--black);
  color: #ffffff;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border: 2px solid var(--black);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.hero-share-btn:hover {
  background: transparent;
  color: var(--black);
}

.hero-share-btn img {
  width: 14px;
  height: 14px;
  filter: none;
}

.hero-share-btn:hover img {
  filter: invert(1);
}

.section-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-nav a {
  text-decoration: none;
  border-bottom: 2px solid var(--line);
  padding-bottom: 4px;
}

main {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}

.panel {
  padding: 22px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.panel-head h2 {
  font-size: clamp(3rem, 6vw, 5.4rem);
}

.chart-controls {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
}

.metric-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.metric-tab,
.compare-control select {
  border: 2px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
}

.metric-tab {
  min-height: 46px;
  padding: 10px 14px;
  cursor: pointer;
}

.metric-tab.is-active {
  background: var(--panel-2);
  border-color: var(--bg);
  color: var(--text);
}

.compare-control {
  display: grid;
  gap: 8px;
  min-width: 150px;
}

.compare-control select {
  min-height: 46px;
  padding: 0 40px 0 12px;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23111' stroke-width='2'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

.chart-wrap {
  margin-top: 18px;
  background: var(--panel-2);
}

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

.slider-wrap {
  display: grid;
  gap: 0;
  margin-top: 16px;
  padding-left: var(--chart-pad-left);
  padding-right: var(--chart-pad-right);
}

.range-shell {
  position: relative;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: calc(100% - -20px);
  margin: -7px;
  height: 26px;
  background: linear-gradient(to bottom, transparent calc(50% - 2px), var(--bg) calc(50% - 2px), var(--bg) calc(50% + 2px), transparent calc(50% + 2px));
  border-radius: 999px;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  background: var(--black);
  border-radius: 50%;
  cursor: pointer;
  animation: slider-heartbeat 1.4s ease-in-out infinite;
}

input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  background: var(--black);
  border-radius: 50%;
  border: none;
  cursor: pointer;
  animation: slider-heartbeat 1.4s ease-in-out infinite;
}

input[type="range"]:active::-webkit-slider-thumb,
input[type="range"]:active::-moz-range-thumb {
  animation: none;
}

@keyframes slider-heartbeat {
  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgb(227 9 23 / 0%);
  }

  25% {
    transform: scale(1.2);
    box-shadow: 0 0 0 8px rgb(227 9 23 / 30%);
  }

  50% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgb(227 9 23 / 0%);
  }

  75% {
    transform: scale(1.14);
    box-shadow: 0 0 0 10px rgb(227 9 23 / 20%);
  }
}

.stats-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat-card,
.compare-card {
  min-height: 180px;
}

.stat-card > strong,
.compare-card > strong {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  margin-top: 22px;
}

.stat-help {
  margin: 10px 0 0;
  font-size: 0.86rem;
  line-height: 1.4;
  letter-spacing: normal;
  text-transform: none;
  opacity: 0.9;
}

.compare-grid {
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
}

.compare-card-wide {
  min-height: 220px;
}

.duel-head {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 14px;
  align-items: center;
  margin-top: 20px;
}

.duel-side {
  border: 2px solid var(--line);
  background: var(--panel-2);
  padding: 18px;
}

.duel-side strong {
  font-size: clamp(2.4rem, 5vw, 4rem);
  margin-top: 10px;
}

.duel-versus {
  font-family: "Mozilla Headline", "Arial Narrow", Arial, sans-serif;
  font-size: 2rem;
}

.compare-simple {
  min-height: auto;
}

.compare-simple-lead {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 12px 0;
}

.compare-simple-lead strong {
  font-size: clamp(2.4rem, 6vw, 4rem);
}

.compare-simple-lead span {
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.compare-simple-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

.footer-line {
  display: grid;
  gap: 8px;
  padding: 14px 18px;
  color: var(--text);
  background: var(--panel-2);
  border-color: var(--line);
}

.footer-copy {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: normal;
  line-height: 1.5;
  text-transform: none;
}

.footer-copy a {
  text-decoration: underline;
}

.chart-grid-line {
  stroke: rgba(17, 17, 17, 0.2);
  stroke-width: 1;
}

.chart-area {
  fill: none;
}

.chart-line {
  fill: none;
  stroke: var(--bg);
  stroke-width: 2.5;
  stroke-linecap: square;
  stroke-linejoin: miter;
}

.chart-point {
  fill: var(--panel-2);
  stroke: var(--bg);
  stroke-width: 3;
}

.chart-point.is-compare {
  fill: var(--panel-2);
  stroke: var(--bg);
}

.chart-hit {
  fill: transparent;
  cursor: pointer;
}

.chart-hover-point {
  fill: var(--bg);
  stroke: #ffffff;
  stroke-width: 2;
  pointer-events: none;
}

.chart-label {
  fill: rgba(17, 17, 17, 0.74);
  font-size: 14px;
}

.chart-value-label {
  fill: var(--bg);
  font-size: 14px;
  font-weight: 700;
}

.chart-value-label.is-compare {
  fill: #111111;
}

@media (max-width: 960px) {
  .masthead,
  .stats-grid,
  .compare-grid {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    position: relative;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-right {
    align-items: flex-start;
  }

  .hero-flag {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 60px;
  }

  .chart-controls,
  .panel-head,
  .footer-line,
  .duel-head {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 16px, 1160px);
    padding-top: 16px;
  }

  main {
    gap: 10px;
    margin-top: 10px;
  }

  .hero-panel,
  .panel {
    padding: 16px;
  }

  .stats-grid,
  .compare-grid {
    gap: 10px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stat-card,
  .compare-card {
    min-height: auto;
  }

  .stat-card > strong,
  .compare-card > strong {
    margin-top: 10px;
    font-size: clamp(2rem, 10vw, 3rem);
    line-height: 1;
  }

  .stats-grid .stat-card:nth-child(n + 3) {
    grid-column: 1 / -1;
  }

  .stat-help {
    margin-top: 6px;
    font-size: 0.8rem;
    line-height: 1.3;
  }

  .compare-simple-lead {
    margin: 8px 0;
  }

  .compare-simple-meta {
    gap: 6px 12px;
    font-size: 0.88rem;
  }

  .metric-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
  }

  .metric-tab,
  .compare-control,
  .compare-control select {
    width: 100%;
  }

  .metric-tab {
    min-height: 40px;
    padding: 8px 10px;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
  }

  .hero-actions {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .hero-actions .hero-share-btn,
  .hero-actions .hero-github-link {
    width: 100%;
    margin-top: 0;
    justify-content: center;
  }
}