:root { color-scheme: light; --ink: #172b35; --muted: #536773; --accent: #087f78; --line: #cbd7dc; }
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: #f3f6f7; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
main { max-width: 560px; margin: 0 auto; padding: max(40px, env(safe-area-inset-top)) 24px max(28px, env(safe-area-inset-bottom)); }
.eyebrow { font-size: 11px; letter-spacing: .13em; font-weight: 700; color: var(--accent); margin: 0 0 24px; }
h1 { font-size: clamp(32px, 7vw, 42px); line-height: 1.1; letter-spacing: -.04em; margin: 0 0 16px; }
.intro { color: var(--muted); line-height: 1.6; margin-bottom: 28px; }
label { display: block; font-weight: 600; font-size: 14px; margin: 0 0 10px; }
textarea, input { width: 100%; font: inherit; font-size: 16px; color: var(--ink); background: white; border: 1px solid var(--line); border-radius: 8px; padding: 14px; }
textarea { min-height: 170px; resize: vertical; line-height: 1.6; }
textarea::placeholder { color: #687a83; }
:focus-visible { outline: 3px solid #087f78; outline-offset: 3px; }
.hint { color: var(--muted); font-size: 12px; line-height: 1.6; margin: 8px 0 20px; }
details { border-top: 1px solid var(--line); padding-top: 12px; margin: 12px 0 24px; }
summary { cursor: pointer; padding: 8px 0 16px; color: var(--muted); font-size: 14px; }
button { display: flex; justify-content: space-between; align-items: center; width: 100%; min-height: 54px; border: 0; border-radius: 8px; background: var(--accent); color: white; font: inherit; font-weight: 600; padding: 16px 20px; cursor: pointer; }
button:hover { background: #066d67; } button:active { background: #055b56; }
button:disabled { background: #516e70; cursor: wait; }
#feedback { min-height: 24px; color: #176448; line-height: 1.5; font-size: 14px; }
#feedback[data-error="true"] { color: #a52f35; }
footer { border-top: 1px solid var(--line); padding-top: 20px; color: var(--muted); font-size: 12px; line-height: 1.6; }
@media (min-width: 700px) { main { padding-top: 72px; } }