:root {
  color-scheme: dark;
  --bg: #050711;
  --panel: #111827;
  --panel-2: #0f172a;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-2: #a78bfa;
  --ok: #22c55e;
  --warn: #f59e0b;
  --error: #ef4444;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 0%, rgba(56, 189, 248, 0.2), transparent 34rem),
    radial-gradient(circle at 82% 14%, rgba(167, 139, 250, 0.16), transparent 28rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0;
}

.hero {
  display: grid;
  grid-template-columns: 1fr minmax(260px, 370px);
  gap: 24px;
  align-items: end;
  margin-bottom: 20px;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 12px; font-size: clamp(2.5rem, 8vw, 5.4rem); line-height: 0.9; letter-spacing: -0.06em; }
h2 { margin-bottom: 0; font-size: 1.05rem; }
.hero-copy { max-width: 720px; color: var(--muted); font-size: 1.05rem; }

.control-grid, .lower-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 16px;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1.2fr 1.2fr 0.8fr 1.4fr;
  gap: 16px;
  margin: 16px 0;
}

.panel, .status-card, .log-panel, .widget {
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.96), rgba(15, 23, 42, 0.92));
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.3);
}

.panel, .log-panel, .widget { padding: 22px; }

.status-card {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 18px;
}

.status-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--warn);
  box-shadow: 0 0 24px var(--warn);
}

.status-dot.ok, .badge.ok { background: var(--ok); }
.status-dot.error, .badge.error { background: var(--error); }
.status-dot.ok { box-shadow: 0 0 24px var(--ok); }
.status-dot.error { box-shadow: 0 0 24px var(--error); }

.panel-title { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 16px; }
.badge { border-radius: 999px; background: #1f2937; color: var(--text); font-size: 0.74rem; font-weight: 800; padding: 6px 10px; text-transform: uppercase; }
.badge.warn { background: var(--warn); color: #1f1300; }

label { display: block; margin: 12px 0 6px; color: var(--muted); font-size: 0.88rem; }

input, select {
  width: 100%;
  border: 1px solid rgba(148, 163, 184, 0.24);
  border-radius: 14px;
  background: #020617;
  color: var(--text);
  padding: 12px 14px;
  outline: none;
}

input:focus, select:focus { border-color: var(--accent); }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }

button {
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #00111f;
  cursor: pointer;
  font-weight: 900;
  padding: 11px 16px;
}

button.secondary { background: #1f2937; color: var(--text); }
button.ghost { background: transparent; color: var(--text); border: 1px solid rgba(148, 163, 184, 0.24); }
button:hover { filter: brightness(1.08); }

.hint, .muted { color: var(--muted); }
.hint { margin-bottom: 0; font-size: 0.9rem; }
.list { display: grid; gap: 10px; }
.item { padding: 12px; border-radius: 16px; background: rgba(2, 6, 23, 0.58); border: 1px solid rgba(148, 163, 184, 0.08); }
.item button { margin-top: 10px; padding: 8px 12px; font-size: 0.78rem; }
code { color: var(--accent); }
pre { white-space: pre-wrap; word-break: break-word; color: #cbd5e1; }

.widget { min-height: 170px; position: relative; overflow: hidden; }
.widget::before { content: ""; position: absolute; inset: auto -30% -45% 20%; height: 120px; background: rgba(56, 189, 248, 0.12); filter: blur(34px); }
.widget .label { display: block; color: var(--muted); font-size: 0.8rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
.widget strong { display: block; margin: 16px 0 6px; font-size: clamp(2rem, 6vw, 4.4rem); line-height: 0.9; letter-spacing: -0.06em; }
.widget small { color: var(--muted); }
.speed-widget { grid-row: span 2; min-height: 356px; display: flex; flex-direction: column; justify-content: center; }
.speed-widget strong { font-size: clamp(4.8rem, 14vw, 9rem); }
.pedals-widget { grid-column: span 2; }
.source-widget, .profile-widget { grid-column: span 2; min-height: 130px; }
.source-widget strong, .profile-widget strong { font-size: 1.8rem; line-height: 1.1; }

.bar { height: 12px; border-radius: 999px; overflow: hidden; background: rgba(148, 163, 184, 0.18); }
.bar span { display: block; width: 0%; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width 120ms ease; }
.bar.brake span { background: linear-gradient(90deg, var(--warn), var(--error)); }
.pedal-row { display: grid; grid-template-columns: 76px 1fr 48px; gap: 10px; align-items: center; margin-top: 18px; }
.pedal-row span, .pedal-row strong { margin: 0; font-size: 0.88rem; color: var(--muted); }

.shift-on { color: var(--warn) !important; text-shadow: 0 0 22px rgba(245, 158, 11, 0.75); }
.log-panel { margin-top: 16px; }
.log-panel pre { min-height: 120px; margin-bottom: 0; }

@media (max-width: 980px) {
  .hero, .control-grid, .lower-grid, .dashboard-grid { grid-template-columns: 1fr; }
  .speed-widget, .pedals-widget, .source-widget, .profile-widget { grid-column: auto; grid-row: auto; min-height: 170px; }
}

@media (max-width: 640px) {
  .shell { width: min(100% - 20px, 1240px); padding: 24px 0; }
  .panel, .log-panel, .widget { padding: 18px; border-radius: 20px; }
  .pedal-row { grid-template-columns: 1fr; }
}