:root {
  --bg: #0b0f14;
  --bg2: #0e141c;
  --card: rgba(255,255,255,0.06);
  --border: rgba(255,255,255,0.10);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.65);
  --muted2: rgba(255,255,255,0.45);
  --accent: #7dd3fc; /* technical cyan */
  --accent2: #a78bfa; /* violet */
  --good: #34d399;
  --shadow: 0 16px 50px rgba(0,0,0,0.45);

  --radius: 18px;
  --radius2: 26px;

  --maxw: 1100px;
}

[data-theme="light"] {
  --bg: #f7fafc;
  --bg2: #eef2f7;
  --card: rgba(0,0,0,0.04);
  --border: rgba(0,0,0,0.10);
  --text: rgba(0,0,0,0.88);
  --muted: rgba(0,0,0,0.62);
  --muted2: rgba(0,0,0,0.45);
  --shadow: 0 16px 50px rgba(0,0,0,0.12);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 800px at 20% 0%, rgba(125,211,252,0.10), transparent 55%),
              radial-gradient(1200px 800px at 80% 10%, rgba(167,139,250,0.10), transparent 50%),
              var(--bg);
  color: var(--text);
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 15, 20, 0.60);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.logo-mark {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(125,211,252,0.25), rgba(167,139,250,0.25));
  border: 1px solid var(--border);
}

.nav {
  display: none;
  gap: 18px;
  font-size: 14px;
  color: var(--muted);
}
.nav a:hover { color: var(--text); text-decoration: none; }

@media (min-width: 860px) {
  .nav { display: flex; }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: transform 0.08s ease, background 0.15s ease, border 0.15s ease;
}
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn:active { transform: translateY(0px); }

.btn-primary {
  background: linear-gradient(135deg, rgba(125,211,252,0.25), rgba(167,139,250,0.25));
  border: 1px solid rgba(255,255,255,0.18);
  box-shadow: var(--shadow);
}
.btn-secondary {
  background: rgba(255,255,255,0.04);
}
.btn-ghost {
  background: transparent;
  color: var(--muted);
}

.hero {
  padding: 56px 0 24px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
@media (min-width: 980px) {
  .hero-grid { grid-template-columns: 1.1fr 0.9fr; }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 1.0px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: 38px;
  line-height: 1.08;
  margin: 12px 0 14px 0;
}
@media (min-width: 860px) {
  .hero h1 { font-size: 48px; }
}

.lead {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.6;
  margin: 0 0 18px 0;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 18px 0 18px 0;
}

.trust-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 18px;
}
@media (min-width: 560px) {
  .trust-row { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 980px) {
  .trust-row { grid-template-columns: 1fr; }
}

.trust-item {
  padding: 12px 14px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 16px;
}
.trust-label {
  display: block;
  font-size: 12px;
  color: var(--muted2);
  margin-bottom: 6px;
  letter-spacing: 0.4px;
}
.trust-value { font-size: 14px; color: var(--text); }

.hero-panel .panel {
  padding: 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  box-shadow: var(--shadow);
}

.panel-title {
  font-weight: 700;
  margin-bottom: 14px;
}

.diagram {
  display: grid;
  gap: 14px;
  margin-top: 12px;
}

.lane {
  position: relative;
  height: 80px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  padding: 14px;
}
.pad {
  border-radius: 14px;
  border: 1px solid rgba(125,211,252,0.35);
  background: rgba(125,211,252,0.12);
}

/* RX marker: smaller purple box on top of pads */
.rx {
  position: absolute;

  /* centered over pads 3 and 4 (overlapping two) */
  left: 58%;
  top: 50%;
  transform: translate(-50%, -50%);

  width: 58px;
  height: 38px;
  border-radius: 14px;

  border: 1px solid rgba(167,139,250,0.55);
  background: rgba(167,139,250,0.22);
  box-shadow: 0 0 0 4px rgba(167,139,250,0.08);
}

.vehicle {
  position: relative;
  height: 70px;
  border-radius: 22px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}
.vehicle-body {
  position: absolute;
  inset: 16px 28px 16px 28px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.20);
  background: rgba(0,0,0,0.10);
}

/* Small power + controls markers inside the vehicle box */
.ctrl {
  position: absolute;
  width: 26px;
  height: 18px;
  border-radius: 10px;
  border: 1px solid rgba(52,211,153,0.55);
  background: rgba(52,211,153,0.20);
  box-shadow: 0 0 0 4px rgba(52,211,153,0.08);
}

.ctrl.c1 {
  left: 22%;
  top: 26%;
}

.ctrl.c2 {
  left: 30%;
  top: 52%;
}

.wheel {
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: rgba(255,255,255,0.18);
  border: 1px solid var(--border);
  bottom: 10px;
}
.w1 { left: 24px; }
.w2 { right: 24px; }

.legend {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}
.dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  display: inline-block;
  margin-right: 8px;
}
.dot-a { background: rgba(125,211,252,0.95); }
.dot-b { background: rgba(167,139,250,0.95); }
.dot-c { background: rgba(52,211,153,0.95); }

.panel-foot {
  margin-top: 14px;
}

.section {
  padding: 56px 0;
}
.section-alt {
  background: rgba(255,255,255,0.03);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section h2 {
  font-size: 26px;
  margin: 0 0 10px 0;
}
.section-lead {
  margin: 0 0 24px 0;
  color: var(--muted);
  line-height: 1.7;
}

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 860px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
}

.card {
  padding: 18px 18px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.card h3 { margin: 0 0 8px 0; }
.card p { margin: 0; color: var(--muted); line-height: 1.6; }

.two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
@media (min-width: 940px) {
  .two-col { grid-template-columns: 1fr 1fr; }
}

.bullets {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}
.bullets li { margin-bottom: 8px; }

.note {
  margin-top: 16px;
  padding: 14px 14px;
  border-radius: 16px;
  border: 1px solid rgba(52,211,153,0.25);
  background: rgba(52,211,153,0.08);
  color: var(--muted);
}

.spec-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.spec {
  padding: 14px 14px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255,255,255,0.03);
}
.spec-k { font-size: 12px; color: var(--muted2); letter-spacing: 0.2px; margin-bottom: 6px; }
.spec-v { font-size: 14px; color: var(--text); }

.cta-mini { margin-top: 14px; }

.timeline {
  display: grid;
  gap: 14px;
}
.timeline-item {
  padding: 18px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
}
.timeline-date {
  font-size: 12px;
  color: var(--muted2);
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.timeline-body h3 { margin: 0 0 8px 0; }
.timeline-body p { margin: 0; color: var(--muted); line-height: 1.6; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 920px) {
  .contact-grid { grid-template-columns: 0.95fr 1.05fr; }
}

.contact-card, .contact-form {
  padding: 18px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
}

.contact-lines {
  display: grid;
  gap: 8px;
  margin: 14px 0;
  color: var(--muted);
}
.k { color: var(--muted2); margin-right: 8px; }

.form-row {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}
label { font-size: 13px; color: var(--muted); }

input, textarea {
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.15);
  color: var(--text);
  outline: none;
}
[data-theme="light"] input,
[data-theme="light"] textarea {
  background: rgba(255,255,255,0.70);
}

input:focus, textarea:focus {
  border-color: rgba(125,211,252,0.55);
  box-shadow: 0 0 0 4px rgba(125,211,252,0.12);
}

.footer {
  padding: 28px 0;
}
.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  border-top: 1px solid var(--border);
  padding-top: 20px;
}
.logo-foot { font-weight: 700; }
.muted { color: var(--muted); }
.small { font-size: 12px; }