@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --bg-carbon: #0b0d10;
  --card-carbon: #13171d;
  --race-red: #e63946;
  --race-light: #ff6b76;
  --text-white: #f3f5f7;
  --text-muted: #8b95a2;
  --border-carbon: rgba(230, 57, 70, 0.28);
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { background-color: var(--bg-carbon); color: var(--text-white); font-family: var(--font-body); line-height: 1.65; overflow-x: hidden; padding-bottom: 70px; }

.simple-switcher { position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); z-index: 9999; background: rgba(11, 13, 16, 0.96); backdrop-filter: blur(16px); border: 1px solid rgba(255, 255, 255, 0.15); border-radius: 9999px; padding: 6px 12px; display: flex; align-items: center; gap: 6px; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6); max-width: 94vw; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.simple-switcher::-webkit-scrollbar { display: none; }
.simple-switcher span { font-size: 0.7rem; color: #999; text-transform: uppercase; letter-spacing: 0.08em; padding: 0 4px; font-weight: 700; white-space: nowrap; }
.simple-switcher a { font-size: 0.75rem; color: #bbb; text-decoration: none; padding: 5px 10px; border-radius: 9999px; transition: var(--transition); white-space: nowrap; }
.simple-switcher a:hover { color: #fff; background: rgba(255, 255, 255, 0.1); }
.simple-switcher a.active { background: var(--race-red); color: #fff; font-weight: 700; }

.aero-nav { display: flex; justify-content: space-between; align-items: center; padding: 20px 6vw; border-bottom: 1px solid var(--border-carbon); position: sticky; top: 0; background: rgba(11, 13, 16, 0.92); backdrop-filter: blur(12px); z-index: 100; }
.aero-logo { font-family: var(--font-heading); font-size: clamp(1.2rem, 3vw, 1.45rem); letter-spacing: 0.08em; color: #fff; text-decoration: none; font-weight: 700; }
.aero-menu { display: flex; gap: 30px; list-style: none; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.08em; }
.aero-menu a { color: var(--text-muted); text-decoration: none; transition: var(--transition); }
.aero-menu a:hover { color: var(--race-light); }

.btn-race-red { background: var(--race-red); color: #fff; font-size: 0.82rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; padding: 12px 24px; border-radius: 4px; text-decoration: none; border: none; cursor: pointer; transition: var(--transition); text-align: center; }
.btn-race-red:hover { background: var(--race-light); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(230, 57, 70, 0.4); }
.btn-telemetry-link { color: #fff; font-size: 0.84rem; text-decoration: none; padding: 12px 20px; border: 1px solid var(--border-carbon); border-radius: 4px; }

.aero-hero { max-width: 1360px; margin: 0 auto; padding: 60px 6vw 80px; display: grid; grid-template-columns: 1.1fr 1fr; gap: 50px; align-items: center; }
.aero-tag { font-size: 0.76rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--race-red); font-weight: 700; display: block; margin-bottom: 16px; }
.aero-hero-left h1 { font-family: var(--font-heading); font-size: clamp(2.3rem, 5vw, 3.8rem); line-height: 1.14; margin-bottom: 22px; font-weight: 700; }
.aero-hero-left h1 em { font-style: italic; color: var(--race-light); }
.aero-hero-left p { color: var(--text-muted); font-size: 1.05rem; margin-bottom: 32px; max-width: 520px; }
.aero-hero-ctas { display: flex; gap: 16px; align-items: center; }
.bike-frame { border-radius: 10px; overflow: hidden; border: 1px solid var(--border-carbon); box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7); }
.bike-frame img { width: 100%; height: auto; display: block; }

.telemetry-dashboard-section { border-top: 1px solid var(--border-carbon); border-bottom: 1px solid var(--border-carbon); background: #0f1217; padding: 80px 6vw; }
.dashboard-header { text-align: center; margin-bottom: 40px; }
.dashboard-header span { font-size: 0.75rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--race-red); font-weight: 700; }
.dashboard-header h2 { font-family: var(--font-heading); font-size: 2.3rem; margin-top: 6px; }
.telemetry-readout-grid { max-width: 1360px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.readout-card { background: var(--card-carbon); border: 1px solid var(--border-carbon); border-radius: 8px; padding: 26px 20px; }
.readout-card.highlight-card { border-color: var(--race-red); }
.readout-label { font-size: 0.72rem; letter-spacing: 0.16em; color: var(--race-light); font-weight: 700; display: block; margin-bottom: 8px; }
.readout-val { font-family: var(--font-heading); font-size: 2rem; color: #fff; margin-bottom: 6px; font-weight: 700; }
.readout-card p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.5; }

.config-section { padding: 90px 6vw; max-width: 1000px; margin: 0 auto; }
.config-card { background: var(--card-carbon); border: 1px solid var(--border-carbon); border-radius: 12px; padding: 48px; text-align: center; }
.config-card h2 { font-family: var(--font-heading); font-size: 2.2rem; margin: 8px 0 12px; }
.config-card p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 30px; }
.config-builder-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; text-align: left; margin-bottom: 32px; }
.config-step label { font-size: 0.82rem; font-weight: 700; text-transform: uppercase; color: var(--race-light); display: block; margin-bottom: 12px; }
.pill-rack { display: flex; flex-direction: column; gap: 8px; }
.pill-choice { background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border-carbon); color: var(--text-white); padding: 12px 16px; border-radius: 6px; text-align: left; font-size: 0.88rem; cursor: pointer; transition: var(--transition); }
.pill-choice.active { background: var(--race-red); color: #fff; font-weight: 600; border-color: var(--race-red); }
.btn-wide { width: 100%; padding: 16px; font-size: 0.95rem; }

.aero-footer { border-top: 1px solid var(--border-carbon); padding: 50px 6vw; text-align: center; font-size: 0.8rem; color: var(--text-muted); }
.aero-footer-title { font-family: var(--font-heading); font-size: 1.15rem; letter-spacing: 0.1em; color: var(--race-red); margin-bottom: 6px; }

@media (max-width: 900px) {
  .aero-menu { display: none; }
  .aero-hero { grid-template-columns: 1fr; }
  .telemetry-readout-grid { grid-template-columns: 1fr 1fr; }
  .config-builder-grid { grid-template-columns: 1fr; }
}