* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, sans-serif; background: #f4f5f7; color: #1d2330; }
.bar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: .7rem 1.2rem; background: #fff; border-bottom: 1px solid #dde1e8; }
.bar nav { display: flex; gap: 1rem; align-items: center; }
.lang-switch { display: flex; gap: 4px; }
.lang-link { text-decoration: none; color: #6b7385; font-size: .8rem; font-weight: 700; padding: 3px 8px; border: 1px solid #dde1e8; border-radius: 6px; }
.lang-link:hover { color: #1d2330; }
.lang-link.active { color: #fff; background: #2457d6; border-color: #2457d6; }
.brand { font-weight: 700; color: #2457d6; text-decoration: none; }
main { max-width: 860px; margin: 1.5rem auto; padding: 0 1rem; }
.card { background: #fff; border: 1px solid #dde1e8; border-radius: 10px; padding: 1.2rem 1.4rem; margin-bottom: 1.2rem; }
.card.narrow { max-width: 420px; margin-inline: auto; }
.hero { text-align: center; padding: 3rem 1.4rem; }
h1 { font-size: 1.25rem; margin-top: 0; }
label { display: block; margin-bottom: .8rem; font-size: .9rem; }
input { width: 100%; padding: .55rem .7rem; border: 1px solid #c4cad4; border-radius: 6px; font: inherit; margin-top: .25rem; }
.row { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; margin-top: .5rem; }
.row input { flex: 1 1 200px; margin: 0; width: auto; }
.btn { display: inline-block; padding: .5rem 1rem; border: 0; border-radius: 6px; background: #2457d6; color: #fff; font: inherit; cursor: pointer; text-decoration: none; }
.btn.secondary { background: #e6e9ef; color: #1d2330; }
.btn.danger { background: #c62f3d; }
button.link { background: none; border: 0; color: #2457d6; cursor: pointer; font: inherit; padding: 0; }
form.inline { display: inline; }
.muted { color: #6b7385; font-size: .85rem; }
.flash { padding: .6rem .9rem; border-radius: 6px; margin-bottom: 1rem; }
.flash.success { background: #e2f6e8; color: #1c6b36; }
.flash.error { background: #fde6e8; color: #9b2230; }
.doc { border-top: 1px solid #eceff3; padding: .9rem 0; }
.doc .muted { margin-left: .5rem; }
.link-input { font-family: monospace; font-size: .85rem; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .5rem; border-top: 1px solid #eceff3; font-size: .9rem; }
.badge { background: #2457d6; color: #fff; border-radius: 4px; padding: 0 .4rem; font-size: .7rem; vertical-align: middle; }
body.viewer { display: flex; flex-direction: column; height: 100vh; }
.pdf { flex: 1; width: 100%; border: 0; }