:root {
    --bg: #f5f6f8;
    --card: #ffffff;
    --text: #1b1f24;
    --muted: #667085;
    --border: #e3e6ea;
    --primary: #1f5eff;
    --primary-text: #ffffff;
    --danger: #c62828;
    --flash: #fff6d6;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--primary); }
h1 { font-size: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.1rem; margin: 0 0 .25rem; }
p { margin: .25rem 0; }

.topbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .75rem 1rem; background: var(--card); border-bottom: 1px solid var(--border); }
.topbar nav { display: flex; gap: .5rem; align-items: center; }
.brand { font-weight: 700; color: var(--text); text-decoration: none; }
.container { max-width: 1000px; margin: 0 auto; padding: 1.5rem 1rem; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 1.25rem; }
.narrow { max-width: 520px; margin: 0 auto; display: flex; flex-direction: column; gap: 1rem; }
.center { text-align: center; padding: 3rem 1rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.hint { font-size: .85rem; color: var(--muted); margin-top: -.5rem; }
.flash { background: var(--flash); border: 1px solid #f0d77a; border-radius: 8px; padding: .75rem 1rem; margin-bottom: 1rem; }

.grid { display: grid; gap: 1rem; }
.link { display: flex; gap: 1.25rem; align-items: flex-start; }
.link .qr { flex: none; width: 160px; height: 160px; border: 1px solid var(--border); border-radius: 8px; background: #fff; }
.link .info { min-width: 0; flex: 1; }
.link .info p { overflow-wrap: anywhere; }
.tag { display: inline-block; font-size: .75rem; font-weight: 600; padding: .1rem .4rem; border-radius: 4px; background: var(--bg); border: 1px solid var(--border); }
.actions { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .75rem; }

label { display: flex; flex-direction: column; gap: .35rem; font-weight: 600; font-size: .9rem; }
input[type=text], input[type=url], input[type=password], input[type=file] { font: inherit; font-weight: 400; padding: .55rem .7rem; border: 1px solid var(--border); border-radius: 8px; width: 100%; background: #fff; }
.prefix-input { display: flex; align-items: center; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.prefix-input span { padding: .55rem .5rem .55rem .7rem; color: var(--muted); font-weight: 400; background: var(--bg); white-space: nowrap; }
.prefix-input input { border: 0; border-radius: 0; }
fieldset.types { border: 0; padding: 0; margin: 0; display: flex; gap: 1.5rem; flex-wrap: wrap; }
fieldset.types legend { font-weight: 600; font-size: .9rem; margin-bottom: .35rem; }
label.radio { flex-direction: row; align-items: center; font-weight: 400; }

.btn { display: inline-flex; align-items: center; font: inherit; font-size: .9rem; padding: .45rem .8rem; border-radius: 8px; border: 1px solid var(--border); background: var(--card); color: var(--text); text-decoration: none; cursor: pointer; }
.btn:hover { border-color: var(--muted); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: var(--primary-text); }
.btn-ghost { background: transparent; }
.btn-danger { color: var(--danger); }
form.inline { display: inline; margin: 0; }

@media (max-width: 600px) {
    .link { flex-direction: column; align-items: center; text-align: center; }
    .actions { justify-content: center; }
    .prefix-input { flex-direction: column; align-items: stretch; }
}