:root {
    --normal: #000000;
    --background: #f8f8f8;
    --surface-1: #ffffff;
    --surface-2: #f0f0f2;
    --border-subtle: rgba(0,0,0,0.06);
    --border-moderate: rgba(0,0,0,0.12);
    --text-dim: #6b7280;
    --activetext: #4b5786;
    --ainfo: dodgerblue;
    --adanger: red;
    --asuccess: green;
    --accent-muted: rgba(85,158,255,0.08);
    --accent-border: rgba(85,158,255,0.2);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --row-odd: #f7f7fa;
}
@media (prefers-color-scheme: dark) {
    :root {
        --normal: #dddddd;
        --background: #161616;
        --surface-1: #181b20;
        --surface-2: #1f2328;
        --border-subtle: rgba(255,255,255,0.06);
        --border-moderate: rgba(255,255,255,0.12);
        --text-dim: #8b929e;
        --activetext: #eeeeee;
        --ainfo: #f2f2ff;
        --accent-muted: rgba(91,141,239,0.12);
        --accent-border: rgba(91,141,239,0.25);
        --row-odd: #181b20;
    }
}
* { box-sizing: border-box; }
body { margin: 0; font-family: 'Geist', system-ui, sans-serif; color: var(--normal); background: var(--background); line-height: 1.5; }
a { color: var(--ainfo); }
.bar { display: flex; justify-content: space-between; align-items: center; padding: 0.8em 4vw; background: var(--surface-1); border-bottom: 1px solid var(--border-subtle); }
.brand { font-weight: 700; text-decoration: none; color: var(--normal); }
.brand span { color: var(--adanger); }
.bar-links { display: flex; gap: 1em; align-items: center; }
.inline { display: inline; }
button.link { background: none; border: none; color: var(--ainfo); cursor: pointer; font: inherit; padding: 0; }
.page { max-width: 52em; margin: 0 auto; padding: 2em 4vw 4em; }
.foot { text-align: center; color: var(--text-dim); font-size: 0.85em; padding: 2em 4vw; }
h1 { font-size: 1.7em; letter-spacing: -0.02em; margin: 0 0 0.6em; }
h2 { font-size: 1.2em; margin: 2em 0 0.6em; }
p { color: var(--activetext); }
.msg { padding: 0.7em 1em; border-radius: var(--radius-sm); background: var(--accent-muted); border: 1px solid var(--accent-border); margin-bottom: 1em; }
.msg-error { background: rgba(255,66,77,0.1); border-color: rgba(255,66,77,0.25); color: var(--adanger); }
.card { background: var(--surface-1); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 1.2em 1.4em; margin-bottom: 1.2em; }
.btn { display: inline-block; padding: 0.6em 1.2em; border-radius: var(--radius-md); border: 1px solid var(--accent-border); background: var(--accent-muted); color: var(--ainfo); font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.btn-danger { color: var(--adanger); border-color: rgba(255,66,77,0.25); background: rgba(255,66,77,0.06); }
.btn-small { padding: 0.3em 0.7em; font-size: 0.85em; }
label { display: block; margin: 0.6em 0 0.2em; font-weight: 600; }
input[type=text], input[type=email], input[type=date], input[type=number], select, textarea { width: 100%; padding: 0.6em; border: 1px solid var(--border-moderate); border-radius: var(--radius-sm); background: var(--surface-1); color: var(--normal); font: inherit; }
.choice { display: block; font-weight: 400; margin: 0.2em 0; }
table { width: 100%; border-collapse: collapse; font-size: 0.95em; }
th { text-align: left; font-size: 0.75em; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); padding: 0.5em 0.7em; border-bottom: 2px solid var(--border-subtle); background: var(--surface-2); }
td { padding: 0.5em 0.7em; border-bottom: 1px solid var(--border-subtle); vertical-align: middle; }
tbody tr:nth-child(odd) { background: var(--row-odd); }
.total { font-size: 1.4em; font-weight: 700; }
.key-box { font-family: ui-monospace, monospace; font-size: 1.05em; padding: 0.8em 1em; background: var(--surface-2); border: 1px solid var(--border-moderate); border-radius: var(--radius-sm); word-break: break-all; user-select: all; }
.dim { color: var(--text-dim); font-size: 0.9em; }
h3 { font-size: 1.05em; margin: 1.2em 0 0.4em; }
.steps { margin: 0 0 1em; padding-left: 1.3em; color: var(--activetext); }
.steps li { margin-bottom: 0.4em; }
.code { font-family: ui-monospace, monospace; font-size: 0.9em; padding: 0.8em 1em; background: var(--surface-2); border: 1px solid var(--border-moderate); border-radius: var(--radius-sm); overflow-x: auto; white-space: pre; }
/* Account page: one card per section, even rhythm, no card butting a table. */
.section { margin-top: 1.8em; }
.section h2 { margin: 0 0 0.5em; }
.section .card { margin-bottom: 0; padding: 0.6em 1em 1em; }
.section .card > table { margin: 0; }
.section .card > table + p { margin: 0.9em 0 0; }
.actions { display: flex; gap: 0.6em; flex-wrap: wrap; margin: 1em 0 0; }
.right { text-align: right; }
.row-form { display: flex; gap: 0.6em; align-items: center; flex-wrap: wrap; margin-top: 1em; padding-top: 1em; border-top: 1px solid var(--border-subtle); }
.row-form label { margin: 0; white-space: nowrap; }
.row-form input[type=text] { flex: 1 1 14em; width: auto; }
.note { margin: 0.6em 0 0; }
@media (max-width: 640px) { .page { padding: 1.2em 16px 3em; } table { display: block; overflow-x: auto; } .row-form { flex-direction: column; align-items: stretch; } .row-form input[type=text] { width: 100%; } }

/* Admin pages: wider column, data on the left, action forms on the right. */
.page-wide { max-width: 84em; }
.admin-grid { display: grid; grid-template-columns: minmax(0, 1fr) 24em; gap: 0 1.6em; align-items: start; }
.admin-grid .section:first-child { margin-top: 1.8em; }
.card.scroll { overflow-x: auto; }
table.nowrap td, table.nowrap th { white-space: nowrap; }
table.ents { font-size: 0.9em; }
table.ents td, table.ents th { padding: 0.45em 0.5em; }
table.ents td:nth-child(4), table.ents td:nth-child(5), table.ents td:nth-child(6), table.ents td:nth-child(9), table.acts td:last-child { white-space: normal; }
table.ents td:nth-child(9), table.acts td:last-child { min-width: 12em; }
.head-row { display: flex; align-items: center; justify-content: space-between; gap: 1em; flex-wrap: wrap; margin: 0.4em 0 0; }
.head-row span { color: var(--activetext); }
.chips { display: flex; flex-wrap: wrap; gap: 0.4em; }
.chip { display: inline-flex; align-items: center; gap: 0.35em; padding: 0.3em 0.6em; border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); background: var(--surface-2); font-weight: 400; margin: 0; cursor: pointer; }
.chip:has(input:checked) { border-color: var(--accent-border); background: var(--accent-muted); }
.chip input { margin: 0; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 0 0.8em; }
.admin-side label { margin-top: 0.8em; }
.admin-side .actions { margin-top: 1em; }
@media (max-width: 1000px) { .admin-grid { grid-template-columns: 1fr; } }