:root {
  --bg: #0d0d0d;
  --panel-bg: rgba(12, 12, 14, 0.78);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text: #eaeaea;
  --muted: #9c9ca4;
  --red: #ff4455;
  --blue: #33aaff;
  --white: #ffffff;
  --orange: #ff8c00;
  --live: #4ee083;
  --demo: #f5b041;
  --connecting: #93a5bd;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at top, rgba(71, 23, 23, 0.28), transparent 30%),
    linear-gradient(180deg, #111113 0%, #0d0d0d 45%, #090909 100%);
  color: var(--text);
  font-family: "Inter", sans-serif;
}

.page-shell {
  width: min(1240px, calc(100vw - 32px));
  margin: 0 auto;
}

nav {
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(8, 8, 12, 0.72);
  backdrop-filter: blur(14px);
}

.nav-inner {
  width: min(1240px, calc(100vw - 32px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.nav-logo {
  color: var(--text);
  text-decoration: none;
}

.logo-wrap {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.logo-main {
  font-family: "Syne", "Space Grotesk", sans-serif;
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: #e8e6f0;
}

.logo-ai {
  color: #8b7fd4;
}

.logo-sub {
  display: flex;
  gap: 0.16rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.56rem;
  line-height: 1;
  letter-spacing: 0.02em;
  color: #5a5580;
}

.logo-gap {
  opacity: 0.45;
}

.nav-contact {
  color: #b9bcc8;
  text-decoration: none;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82rem;
}

.page-shell {
  padding: 48px 0 36px;
}

.hero {
  text-align: center;
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 10px;
  color: #a88d8d;
  font-size: 0.76rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  color: var(--text);
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  font-weight: 300;
  letter-spacing: -0.04em;
}

.subtitle {
  margin: 16px auto 0;
  max-width: 780px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
}

.badges {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.badge.slnn {
  background: #1a3a5c;
  color: var(--blue);
  border: 1px solid #33aaff40;
}

.badge.pid {
  background: #3a1a1a;
  color: var(--red);
  border: 1px solid #ff445540;
}

.badge.status {
  border: 1px solid transparent;
}

.badge.status.connecting {
  background: rgba(90, 102, 120, 0.2);
  color: var(--connecting);
  border-color: rgba(147, 165, 189, 0.25);
}

.badge.status.live {
  background: rgba(38, 91, 48, 0.28);
  color: var(--live);
  border-color: rgba(78, 224, 131, 0.3);
}

.badge.status.error {
  background: rgba(85, 27, 27, 0.28);
  color: #ff8d8d;
  border-color: rgba(255, 141, 141, 0.3);
}

.demo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.panel {
  position: relative;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 24px 72px rgba(0, 0, 0, 0.35);
}

.panel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 20%);
}

.panel-label {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 1;
  padding: 8px 12px;
  border-radius: 999px;
  backdrop-filter: blur(10px);
  background: rgba(8, 8, 10, 0.54);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.panel-label.pid {
  color: var(--red);
}

.panel-label.slnn {
  color: var(--blue);
}

.panel-header {
  padding: 58px 18px 14px;
}

.panel-header h2 {
  margin: 0;
  color: var(--text);
  font-size: 1.25rem;
  font-weight: 500;
}

.panel-header p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.5;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  background: #05050a;
}

.panel-copy {
  margin: 0;
  padding: 14px 18px 0;
  color: #b6bcc7;
  font-size: 0.92rem;
  line-height: 1.55;
}

.impact-copy {
  margin: 0;
  padding: 12px 18px 18px;
  color: #d7dbe3;
  font-size: 0.9rem;
  line-height: 1.55;
}

.legend {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  padding: 14px 18px 6px;
  color: #c8d2eb;
  font-size: 0.82rem;
}

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  margin-right: 8px;
}

.dot.red { background: var(--red); }
.dot.blue { background: var(--blue); }
.dot.white { background: var(--white); }

.metrics-bar {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.metric-col {
  padding: 18px;
  border-radius: 14px;
  border: 1px solid var(--panel-border);
  background: rgba(9, 11, 19, 0.86);
}

.metric-col.spring {
  box-shadow: inset 0 0 0 1px rgba(255, 76, 96, 0.08);
}

.metric-col.slnn {
  box-shadow: inset 0 0 0 1px rgba(51, 170, 255, 0.08);
}

.metric-col p {
  margin: 0 0 10px;
  color: #dbe4ff;
  font-size: 0.88rem;
}

.metric-col p:last-child {
  margin-bottom: 0;
}

.site-footer {
  margin-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 18px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: #7f8087;
  font-size: 0.9rem;
}

@media (max-width: 980px) {
  .demo-grid,
  .metrics-bar {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav-inner,
  .page-shell {
    width: min(100vw - 20px, 780px);
  }

  .nav-inner {
    min-height: 64px;
  }

  .page-shell {
    padding-top: 28px;
  }

  .subtitle br {
    display: none;
  }

  .nav-contact {
    display: none;
  }

  .footer-inner {
    justify-content: center;
    text-align: center;
  }
}