:root { font: 16px system-ui, sans-serif; color: #182722; background: #f5f7f8; }
* { box-sizing: border-box; letter-spacing: 0; }
body { margin: 0; }
header { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; padding: 18px 24px; border-bottom: 1px solid #d7dfdc; background: white; }
header strong { margin-right: auto; }
header a { color: #176347; min-height: 44px; display: inline-flex; align-items: center; }
#account { font-size: 14px; color: #657079; }
main { max-width: 1200px; margin: auto; padding: 24px; }
h1 { font-size: 24px; } h2 { font-size: 18px; }
button, .upload { padding: 10px 16px; border-radius: 6px; border: 1px solid #197255; color: #176347; background: white; cursor: pointer; font: inherit; }
button:hover { background: #e5f3eb; } button:disabled { opacity: .5; cursor: wait; }
label { display: grid; gap: 8px; margin: 14px 0; }
input { font: inherit; padding: 12px; min-width: 0; max-width: 100%; border: 1px solid #a6b7b0; border-radius: 6px; }
#login { max-width: 420px; } #notice { color: #ac342c; overflow-wrap: anywhere; }
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.upload input { display: block; max-width: 230px; font-size: 14px; border: 0; padding: 0; }
.columns { display: grid; grid-template-columns: minmax(240px, 1fr) minmax(300px, 2fr); gap: 28px; }
.row { padding: 16px 0; border-bottom: 1px solid #d7dfdc; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.row strong { flex: 1; overflow-wrap: anywhere; min-width: 120px; }
#preview { min-width: 0; border-left: 1px solid #d7dfdc; padding-left: 24px; }
#preview img { max-width: 100%; max-height: 280px; object-fit: contain; }
#preview p { white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.6; }
.question { border-top: 1px solid #d7dfdc; padding: 18px 0; }
.question button { display: block; margin: 10px 0; text-align: left; width: 100%; }
.feedback { color: #176347; }
details { margin: 24px 0; } summary { cursor: pointer; }
[hidden] { display: none !important; }
@media (max-width: 700px) { main { padding: 16px; } .columns { grid-template-columns: 1fr; } #preview { border-left: 0; padding-left: 0; } .toolbar { align-items: start; flex-wrap: wrap; } header { padding: 14px; } }