:root { --hijau: #0d3b2e; --hijau2: #145a43; --kuning: #f2c94c; --teks: #1b2a24; --abu: #5d6b65; --garis: #d5ded9; --latar: #f4f7f5; --merah: #c0392b; }
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--teks); background: var(--latar); line-height: 1.5; }
.wadah { max-width: 640px; margin: 0 auto; padding: 0 16px 48px; }
.kepala { background: linear-gradient(120deg, var(--hijau), var(--hijau2)); color: #fff; margin: 0 -16px 20px; padding: 28px 20px 24px; }
.logo { height: 40px; }
.kepala h1 { font-size: 1.6rem; line-height: 1.2; margin: 16px 0 8px; }
.kepala h1 span { color: var(--kuning); }
.kepala p { margin: 0; opacity: .92; }
fieldset { border: 0; background: #fff; border-radius: 16px; padding: 18px 16px; margin: 0 0 16px; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
legend { font-weight: 700; font-size: 1.05rem; padding: 0; float: left; width: 100%; margin-bottom: 8px; }
label { display: block; font-weight: 600; font-size: .95rem; margin: 12px 0 0; }
label small { font-weight: 400; color: var(--abu); }
input:not([type=radio]):not([type=checkbox]), select, textarea { display: block; width: 100%; margin-top: 6px; padding: 12px; font: inherit; font-weight: 400; border: 1px solid var(--garis); border-radius: 10px; background: #fff; color: var(--teks); }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--hijau2); border-color: transparent; }
[aria-invalid=true] { border-color: var(--merah) !important; }
.dua { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 420px) { .dua { grid-template-columns: 1fr; } }
.pilihan { margin-top: 12px; }
.judul-pilihan { display: block; font-weight: 600; font-size: .95rem; }
.radio { display: inline-flex; align-items: center; gap: 6px; margin: 8px 20px 0 0; font-weight: 400; }
.centang { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; margin-top: 16px; }
.centang input { margin-top: 4px; width: 18px; height: 18px; flex: none; }
.tersembunyi { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.galat-field { display: block; color: var(--merah); font-weight: 500; font-size: .85rem; margin-top: 4px; }
.galat { color: var(--merah); font-weight: 600; min-height: 1em; }
button { display: block; width: 100%; padding: 14px; font: inherit; font-weight: 700; font-size: 1.05rem; border: 0; border-radius: 12px; background: var(--hijau); color: #fff; cursor: pointer; }
button:disabled { opacity: .6; }
#terima-kasih { background: #fff; border-radius: 16px; padding: 24px 18px; text-align: center; }
#terima-kasih button { margin-top: 16px; background: var(--hijau2); }