body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, #030711, #00030a);
  color: #f3f7ff;
  font-family: "Space Grotesk", "Inter", system-ui, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.2rem, 5vw, 4rem);
}

.shell {
  width: min(520px, 100%);
}

.eyebrow {
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: #8ca9ff;
}

header h1 {
  margin: 0.4rem 0;
  font-size: clamp(2.2rem, 5vw, 3.1rem);
}

header p {
  color: #9eb4da;
  margin: 0;
}

.panel {
  margin-top: 1.5rem;
  padding: clamp(1.2rem, 4vw, 2rem);
  border-radius: 28px;
  background: rgba(6, 12, 26, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.2);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
}

label {
  display: block;
  margin-bottom: 1rem;
  font-weight: 600;
}

input {
  width: 100%;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.8rem 1rem;
  background: rgba(0, 3, 15, 0.6);
  color: #f3f7ff;
  margin-top: 0.4rem;
}

button {
  width: 100%;
  border: none;
  border-radius: 18px;
  padding: 0.9rem;
  font-size: 1rem;
  font-weight: 700;
  background: linear-gradient(120deg, #ff7a18, #af002d 85%);
  color: #050505;
  cursor: pointer;
}

.tracker .muted {
  color: #9eb4da;
  margin-top: 1rem;
}

.dial {
  margin-top: 0.6rem;
  border-radius: 999px;
  border: 2px solid rgba(255, 255, 255, 0.12);
  padding: 2.5rem 0;
  text-align: center;
  font-size: 2rem;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05), transparent);
}

.dial.focus {
  border-color: #38bdf8;
  box-shadow: 0 0 40px rgba(56, 189, 248, 0.25);
}

.dial.rest {
  border-color: #34d399;
  box-shadow: 0 0 40px rgba(52, 211, 153, 0.25);
}

.dial small {
  display: block;
  font-size: 0.9rem;
  margin-top: 0.4rem;
  color: #c8d4f5;
}

@media (max-width: 600px) {
  body {
    padding: 1rem;
  }
}