:root {
  color-scheme: light;
  --ink: #111820;
  --muted: #66717d;
  --paper: #f4f6f7;
  --surface: #ffffff;
  --line: #cdd4da;
  --cyan: #086f83;
  --cyan-soft: #d7eef2;
  --amber: #b66b08;
  --red: #ad3c35;
  --green: #1d7a50;
  --shadow: 0 26px 74px rgb(17 24 32 / 13%);
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgb(17 24 32 / 4%) 1px, transparent 1px),
    linear-gradient(rgb(17 24 32 / 4%) 1px, transparent 1px),
    var(--paper);
  background-size: 48px 48px;
  font-family: "Avenir Next", Avenir, system-ui, -apple-system, sans-serif;
}

a { color: var(--cyan); }
a:focus-visible, button:focus-visible {
  outline: 3px solid rgb(8 111 131 / 28%);
  outline-offset: 3px;
}

.shell {
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 72px;
}

.masthead, .brand, .hero, .analysis-header, .rail-heading, .chart-range {
  display: flex;
}

.masthead {
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 30px;
}

.brand {
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 780;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 8px;
  background: var(--ink);
  color: white;
  font: 750 0.7rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.08em;
}

.mode, .kicker, .data-source, dt, .rail-heading, .event-tape > div span {
  color: var(--muted);
  font: 700 0.76rem/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.hero {
  align-items: end;
  justify-content: space-between;
  gap: 42px;
  padding: 46px 0 36px;
  border-top: 1px solid var(--line);
}

.kicker { margin: 0 0 14px; color: var(--cyan); }
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 760px;
  margin-bottom: 0;
  font-family: "Avenir Next Condensed", "Arial Narrow", sans-serif;
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 750;
  letter-spacing: 0;
  line-height: 1;
}

.hero-copy {
  max-width: 410px;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
}

.analysis-shell {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  min-height: 720px;
  overflow: hidden;
  border: 1px solid #aeb8c0;
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.analysis-rail {
  padding: 20px;
  border-right: 1px solid var(--line);
  background: #e9edef;
}

.rail-heading {
  justify-content: space-between;
  margin-bottom: 14px;
}

.rail-heading strong { color: var(--ink); }

#analysis-list {
  display: grid;
  gap: 8px;
}

.analysis-button {
  width: 100%;
  min-height: 112px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 14px;
  color: var(--ink);
  background: rgb(255 255 255 / 72%);
  text-align: left;
  cursor: pointer;
}

.analysis-button span, .analysis-button strong, .analysis-button small {
  display: block;
}

.analysis-button span {
  color: var(--cyan);
  font: 750 0.72rem/1.3 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.analysis-button strong { margin: 7px 0 5px; font-size: 0.96rem; }
.analysis-button small { color: var(--muted); line-height: 1.35; }
.analysis-button:hover, .analysis-button.active {
  border-color: #84aeb6;
  background: var(--surface);
}
.analysis-button.active { box-shadow: inset 4px 0 0 var(--cyan); }

.analysis-panel { padding: 30px; }
.analysis-header {
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
}

.analysis-header h2 {
  margin: 4px 0 8px;
  font-family: "Avenir Next Condensed", "Arial Narrow", sans-serif;
  font-size: clamp(2.7rem, 6vw, 5rem);
  letter-spacing: -0.04em;
  line-height: 0.92;
}

.analysis-header h2 small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-family: "Avenir Next", Avenir, sans-serif;
  font-size: 0.28em;
  letter-spacing: 0;
}

.analysis-header p { max-width: 550px; color: var(--muted); }

.signal {
  min-width: 132px;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 14px;
  background: #f7f9fa;
}
.signal span { display: block; color: var(--muted); font-size: 0.76rem; }
.signal strong { display: block; margin-top: 5px; font-size: 1.7rem; }
.signal.buy strong { color: var(--green); }
.signal.sell strong { color: var(--red); }
.signal.hold strong { color: var(--amber); }

.chart-wrap {
  margin-top: 24px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfcfc;
}

#price-chart { display: block; width: 100%; height: auto; }
.grid-lines line { stroke: #dfe5e8; stroke-width: 1; }
#price-line {
  fill: none;
  stroke: var(--cyan);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 4;
  vector-effect: non-scaling-stroke;
}

.chart-range {
  justify-content: space-between;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font: 650 0.72rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 20px 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--line);
}

.metrics div { padding: 16px; background: var(--surface); }
.metrics dd { margin: 6px 0 3px; font-size: 1.35rem; font-weight: 780; }
.metrics small { color: var(--muted); }

.event-tape {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 20px;
  padding-top: 8px;
}
.event-tape h3 { margin: 5px 0 0; }
.event-tape ol { margin: 0; padding: 0; list-style: none; }
.event-tape li {
  display: grid;
  grid-template-columns: 1fr 80px 100px;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid #e6eaed;
}
.event-tape time, .event-tape span { color: var(--muted); }
.event-tape strong, .event-tape span { text-align: right; }

.method { max-width: 790px; padding-top: 48px; }
.method h2 { font-size: 1.35rem; }
.method p { color: var(--muted); line-height: 1.65; }
.loading, .error { color: var(--muted); line-height: 1.5; }
.error { color: var(--red); }

@media (max-width: 900px) {
  .hero { align-items: flex-start; flex-direction: column; }
  .analysis-shell { grid-template-columns: 1fr; }
  .analysis-rail { border-right: 0; border-bottom: 1px solid var(--line); }
  #analysis-list { grid-template-columns: repeat(5, minmax(180px, 1fr)); overflow-x: auto; }
  .analysis-button { min-height: 124px; }
}

@media (max-width: 650px) {
  .shell { width: min(100% - 20px, 1220px); padding-top: 16px; }
  .mode { max-width: 100px; text-align: right; }
  .hero { padding-top: 28px; }
  .analysis-panel { padding: 22px 16px; }
  .analysis-header { flex-direction: column; }
  .signal { width: 100%; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .event-tape { grid-template-columns: 1fr; }
  .event-tape li { grid-template-columns: 1fr 70px 92px; font-size: 0.86rem; }
}

@media (prefers-reduced-motion: no-preference) {
  .analysis-button { transition: border-color 140ms ease, background-color 140ms ease; }
}