body { margin: 0; background: #f4f6f8; color: #172033; }
label { display: block; margin-top: 16px; font-weight: 600; }
input[type="text"] { box-sizing: border-box; width: 100%; padding: 10px; border: 1px solid #aaa; border-radius: 6px; }
input[type="text"], textarea {box-sizing: border-box; width: 100%; padding: 10px; border: 1px solid #aaa; border-radius: 6px; font: inherit; }
:root { color-scheme: light; font-family: system-ui, sans-serif; }
main { width: min(720px, calc(100% - 32px)); margin: 48px auto; }
/*.card { padding: 28px; border-radius: 16px; background: white; box-shadow: 0 8px 28px #17203318; }*/
h1 { margin-top: 0; font-size: 1.6rem; }
.drop-zone { display: block; padding: 42px 20px; border: 2px dashed #6b7c93; border-radius: 12px; text-align: center; cursor: pointer; transition: .15s; }
.drop-zone:hover, .drop-zone.dragover { border-color: #1769e0; background: #edf5ff; }
.drop-zone strong { display: block; margin-bottom: 7px; font-size: 1.1rem; }
#attachments { position: absolute; width: 1px; height: 1px; overflow: hidden; opacity: 0; }
.hint { margin: 12px 0; color: #59677a; font-size: .9rem; }
.file-list { margin: 18px 0; padding: 0; list-style: none; }
.file-list li { display: flex; gap: 12px; align-items: center; padding: 10px 12px; border-bottom: 1px solid #e3e8ef; }
.file-name { flex: 1; overflow-wrap: anywhere; }
.file-size { color: #65748a; font-size: .85rem; white-space: nowrap; }
button { border: 0; border-radius: 8px; cursor: pointer; }
.remove { padding: 5px 9px; background: #feecef; color: #a5122b; }
.submit { padding: 11px 18px; background: #1769e0; color: white; font-weight: 700; }
.submit:disabled { opacity: .5; cursor: not-allowed; }
.message { margin: 10px 0; padding: 11px 14px; border-radius: 8px; }
.success { background: #e8f8ee; color: #146c38; }
.error { background: #feecef; color: #98172c; }