:root {
  color-scheme: light;
  --bg: #0d2818;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --brand: #1b5e20;
  --brand-dark: #145018;
  --error-bg: #fef2f2;
  --error-text: #b91c1c;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background:
    radial-gradient(circle at top, rgba(76, 175, 80, 0.25), transparent 42%),
    linear-gradient(160deg, #0d2818, #1b5e20 55%, #0d2818);
  color: var(--text);
}

.shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(100%, 420px);
  background: var(--card);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.card__header {
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand);
}

h1 {
  margin: 0;
  font-size: 1.75rem;
}

.subtitle {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.form {
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
}

.field input {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 12px;
  padding: 12px 14px;
  font: inherit;
}

.field input:focus {
  outline: 2px solid rgba(27, 94, 32, 0.25);
  border-color: var(--brand);
}

.btn {
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  font: inherit;
  font-weight: 700;
  color: #fff;
  background: var(--brand);
  cursor: pointer;
}

.btn:hover {
  background: var(--brand-dark);
}

.btn--ghost {
  margin-top: 18px;
  width: 100%;
  color: var(--brand);
  background: #ecfdf5;
}

.error {
  margin: 0;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--error-bg);
  color: var(--error-text);
  font-size: 0.9rem;
}

.hint {
  margin: 16px 0 0;
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
}

.success-copy {
  margin: 0;
  line-height: 1.55;
  color: #334155;
}

code {
  font-size: 0.78rem;
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 6px;
}