[hidden] { display: none !important; }
body { font-family: system-ui, sans-serif; margin: 0; color: #1d1d1f; background: #fafafa; }
header { display: flex; align-items: center; gap: 2rem; padding: 0.75rem 1.5rem; background: #1d1d1f; color: #fff; }
header h1 { font-size: 1.2rem; margin: 0; letter-spacing: 0.1em; }
nav { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }
nav a { color: #fff; }
nav #who { opacity: 0.7; }
main { max-width: 60rem; margin: 1.5rem auto; padding: 0 1rem; }
form { display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: flex-end; margin: 0.5rem 0 1.5rem; }
label { display: flex; flex-direction: column; font-size: 0.85rem; gap: 0.2rem; }
input { padding: 0.4rem; font-size: 1rem; min-width: 14rem; }
button { padding: 0.45rem 0.9rem; font-size: 0.95rem; cursor: pointer; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 0.4rem; border-bottom: 1px solid #ddd; vertical-align: top; }
.card { background: #fff; border: 1px solid #ddd; border-radius: 6px; padding: 1rem; margin-bottom: 1rem; }
.muted { color: #666; font-size: 0.85rem; }
#flash { padding: 0.6rem 1rem; border-radius: 4px; background: #eef6ee; border: 1px solid #9c9; }
#flash.error { background: #fbeeee; border-color: #d99; }
#code-box { background: #fff8e0; border: 2px solid #e0b000; padding: 1rem; border-radius: 6px; }
#code-value { font-size: 1.4rem; letter-spacing: 0.08em; }
/* support dashboard (admin.html) */
body.admin main { max-width: 90rem; }
select, textarea { padding: 0.4rem; font-size: 1rem; font-family: inherit; }
td button { padding: 0.2rem 0.5rem; font-size: 0.85rem; margin: 0 0.25rem 0.25rem 0; }
.scroll { overflow-x: auto; }
td code { font-size: 0.8rem; word-break: break-all; }
dialog { border: 1px solid #ddd; border-radius: 6px; padding: 1.25rem; width: min(34rem, 90vw); }
dialog::backdrop { background: rgba(0, 0, 0, 0.4); }
dialog h3 { margin-top: 0; }
dialog form { flex-direction: column; align-items: stretch; margin: 0; }
dialog menu { display: flex; gap: 0.75rem; justify-content: flex-end; padding: 0; margin: 0; }