:root {
  color-scheme: dark;
  --bg: #0a0e1a;
  --surface: #111827;
  --surface-raised: #151f31;
  --text: #f9fafb;
  --dim: rgba(255, 255, 255, 0.55);
  --faint: rgba(255, 255, 255, 0.34);
  --line: rgba(255, 255, 255, 0.12);
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --ok: #10b981;
  --warn: #f59e0b;
  --err: #ef4444;
  font-family: "Roboto Mono", ui-monospace, monospace;
  font-size: 13.5px;
  font-weight: 300;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { min-height: 100vh; margin: 0; color: var(--text); background: var(--bg); }
a { color: inherit; }
strong, b { font-weight: 600; }
.wrap { width: min(1080px, calc(100% - 40px)); margin-inline: auto; }

.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  backdrop-filter: blur(12px);
}
.header-inner, .footer-inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--text);
  font-family: "Expletus Sans", sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
}
.wordmark::before {
  content: "◈";
  color: var(--accent-light);
  font-family: "Roboto Mono", monospace;
  font-size: 1.45rem;
  line-height: 1;
}
.site-nav { display: flex; align-items: center; gap: 1.6rem; }
.site-nav > a:not(.button) {
  color: var(--dim);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  text-transform: uppercase;
}
.site-nav > a:hover { color: var(--accent-light); }

.button {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: transparent;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.button-primary { border-color: var(--accent); background: var(--accent); }
.button-primary:hover { border-color: var(--accent-light); background: var(--accent-light); }
.text-link {
  color: var(--dim);
  font-size: 0.78rem;
  text-underline-offset: 0.25rem;
}
.text-link:hover { color: var(--accent-light); }

.hero { padding-block: 6.25rem 5rem; }
.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--dim);
  font-family: "Expletus Sans", sans-serif;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
h1, h2, h3 {
  font-family: "Expletus Sans", sans-serif;
  font-weight: 500;
}
h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(2.8rem, 6.4vw, 5.4rem);
  line-height: 1.03;
  letter-spacing: -0.025em;
}
h1 em { color: var(--accent-light); font-style: normal; }
h2 { max-width: 700px; margin: 0; font-size: clamp(1.8rem, 3.3vw, 3rem); line-height: 1.12; }
h3 { margin: 0.8rem 0 0.6rem; font-size: 1.05rem; }
.hero-copy, .lede {
  max-width: 720px;
  color: var(--dim);
  font-size: 0.96rem;
  line-height: 1.75;
}
.hero-copy { margin: 1.8rem 0 1.4rem; }
.hero-actions { display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap; }

.forecast-demo {
  margin-top: 4.5rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}
.demo-question, .demo-result {
  display: grid;
  grid-template-columns: 125px 1fr auto;
  align-items: center;
  gap: 1.25rem;
  padding: 1.15rem 1.25rem;
}
.demo-question { border-bottom: 1px solid var(--line); }
.demo-question strong { font-size: 0.86rem; }
.demo-label {
  color: var(--dim);
  font-family: "Expletus Sans", sans-serif;
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.demo-meta { color: var(--faint); font-size: 0.68rem; }
.demo-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 1rem;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.demo-flow span {
  padding: 0.28rem 0.6rem;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  border-radius: 8px;
  color: var(--accent-light);
  background: color-mix(in srgb, var(--accent) 7%, transparent);
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.demo-flow i { color: var(--faint); font-style: normal; }
.demo-result { grid-template-columns: 230px 1fr; }
.demo-result > div { display: flex; align-items: center; gap: 1rem; }
.probability {
  color: var(--accent-light);
  font-family: "Expletus Sans", sans-serif;
  font-size: 2.6rem;
}
.demo-result p { margin: 0; color: var(--dim); font-size: 0.8rem; }

.section { padding-block: 5.5rem; border-top: 1px solid var(--line); }
.lede { margin: 1.25rem 0 2.4rem; }
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
  gap: 1px;
}
.card { min-height: 190px; padding: 1.5rem; background: var(--surface); }
.card:hover { background: var(--surface-raised); }
.card-number { color: var(--accent-light); font-size: 0.68rem; }
.card p { margin: 0; color: var(--dim); font-size: 0.78rem; line-height: 1.65; }

.output-section { width: 100%; max-width: none; background: var(--surface); }
.output-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 5rem; }
.deliverables { margin: 0; padding: 0; list-style: none; }
.deliverables li {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 1.2rem;
  padding: 1.1rem 0;
  border-top: 1px solid var(--line);
}
.deliverables li:last-child { border-bottom: 1px solid var(--line); }
.deliverables strong { color: var(--accent-light); font-family: "Expletus Sans", sans-serif; font-size: 0.84rem; }
.deliverables span { color: var(--dim); font-size: 0.77rem; line-height: 1.6; }

.cta { padding-block: 6rem; text-align: center; }
.cta h2 { margin: 0 auto 1.8rem; }
.site-footer { border-top: 1px solid var(--line); color: var(--dim); font-size: 0.68rem; }

.login-main {
  min-height: calc(100vh - 65px);
  display: grid;
  place-items: center;
  padding: 3rem 1.25rem;
  background:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px),
    var(--bg);
  background-size: 48px 48px;
}
.login-card {
  width: min(100%, 480px);
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}
.login-card .wordmark { margin-bottom: 2.6rem; }
.login-card h1 { font-size: clamp(2rem, 6vw, 3.25rem); }
.login-sub { margin: 1rem 0 1.8rem; color: var(--dim); font-size: 0.82rem; line-height: 1.65; }
.field { display: grid; gap: 0.35rem; margin: 1rem 0; }
.field label {
  padding-left: 0.2rem;
  color: var(--dim);
  font-family: "Expletus Sans", sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.field input {
  width: 100%;
  min-height: 44px;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
  color: var(--text);
  background: transparent;
  font: inherit;
}
.field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 20%, transparent);
}
.login-card .button { width: 100%; margin-top: 0.6rem; }
.login-error {
  padding: 0.8rem;
  border: 1px solid color-mix(in srgb, var(--err) 55%, var(--line));
  border-radius: 8px;
  color: #fca5a5;
  background: color-mix(in srgb, var(--err) 10%, transparent);
  font-size: 0.78rem;
}
.login-fine { margin: 1.4rem 0 0; color: var(--dim); font-size: 0.72rem; line-height: 1.65; }
.starting-card { text-align: center; }
.starting-card h1 { margin-inline: auto; }
.starting-status { min-height: 2.5em; color: var(--dim); font-size: 0.8rem; }
.pulse-track { position: relative; height: 3px; margin: 2.5rem 0 1.8rem; overflow: hidden; border-radius: 8px; background: var(--line); }
.pulse-track span { position: absolute; inset-block: 0; width: 32%; background: var(--accent); animation: travel 1.8s ease-in-out infinite; }
.ready .pulse-track span { width: 100%; transform: translateX(0); animation: none; background: var(--ok); }
@keyframes travel { from { transform: translateX(-110%); } to { transform: translateX(420%); } }

@media (max-width: 760px) {
  .site-nav > a:not(.button) { display: none; }
  .hero { padding-block: 4.5rem 3.5rem; }
  .demo-question { grid-template-columns: 1fr; }
  .demo-meta { display: none; }
  .demo-flow { flex-wrap: wrap; }
  .demo-result, .cards, .output-grid { grid-template-columns: 1fr; }
  .output-grid { gap: 2.5rem; }
  .deliverables li { grid-template-columns: 1fr; gap: 0.35rem; }
  .login-card { padding: 1.5rem; }
  .footer-inner { align-items: flex-start; flex-direction: column; justify-content: center; padding-block: 1.2rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .pulse-track span { width: 65%; transform: translateX(25%); animation: none; }
}