* {
  box-sizing: border-box;
}

:root {
  color-scheme: light;
  --bg: #050816;
  --card: rgba(255, 255, 255, 0.08);
  --accent: #ff7b54;
  --text: #f8fafc;
  --muted: rgba(248, 250, 252, 0.7);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", "Inter", system-ui, sans-serif;
  background: radial-gradient(circle at top, #1d1f3b, #050816 55%);
  color: var(--text);
}

.shell {
  max-width: 960px;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.5em;
  font-size: 0.8rem;
  color: var(--muted);
}

.lead {
  max-width: 520px;
  color: var(--muted);
  font-size: 1.1rem;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
}

.toggle input {
  accent-color: var(--accent);
}

.card {
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 32px;
  padding: 2rem;
  backdrop-filter: blur(12px);
  margin-top: 2rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-weight: 600;
}

input,
select {
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(5, 8, 22, 0.4);
  color: var(--text);
  padding: 0.8rem 1rem;
  font-size: 1rem;
}

.primary {
  grid-column: 1 / -1;
  padding: 1rem 2rem;
  border-radius: 999px;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  color: #050816;
  background: linear-gradient(120deg, #fde68a, var(--accent));
  cursor: pointer;
}

.plan {
  margin-top: 3rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 32px;
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.week-card {
  border-radius: 24px;
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.week-card h3 {
  margin: 0 0 0.75rem;
}

.week-card ul {
  margin: 0;
  padding-left: 1rem;
  color: var(--muted);
}