:root { color-scheme: light; font-family: Inter, ui-sans-serif, system-ui, sans-serif; background: #eef4f2; color: #173b43; }
body { margin: 0; min-height: 100vh; padding: 32px 16px; box-sizing: border-box; }
.shell { max-width: 900px; margin: 0 auto; }
.card { background: white; border: 1px solid #d8e5e1; border-radius: 18px; padding: 28px; box-shadow: 0 12px 40px #173b4312; }
.narrow { max-width: 440px; margin: 12vh auto 0; }
header { display: flex; justify-content: space-between; gap: 24px; align-items: start; margin: 0 0 24px; }
.eyebrow { letter-spacing: .12em; font-size: 12px; font-weight: 700; color: #28706f; }
h1 { margin: 8px 0; font-size: clamp(30px, 5vw, 48px); }
h2 { margin-top: 0; }
.muted { color: #5d7377; }
label { display: grid; gap: 8px; margin: 18px 0; font-weight: 650; }
input, textarea { width: 100%; box-sizing: border-box; border: 1px solid #b9cfca; border-radius: 10px; padding: 12px; font: inherit; color: inherit; background: #fbfdfc; }
textarea { resize: vertical; line-height: 1.5; }
button { border: 0; border-radius: 999px; padding: 12px 18px; background: #28706f; color: white; font: inherit; font-weight: 700; cursor: pointer; }
button.secondary { background: transparent; color: #28706f; border: 1px solid #9cbcb6; }
.error, .success { padding: 12px 14px; border-radius: 10px; }
.error { background: #fff0ee; color: #a33f35; }
.success { background: #e9f5ed; color: #256344; }