*, *::before, *::after { box-sizing: border-box; }

:root {
    --c-bg: #f4f5f7;
    --c-fg: #20242a;
    --c-muted: #6b6f76;
    --c-primary: #2f6feb;
    --c-primary-hover: #2557c7;
    --c-border: #d6dbe1;
    --c-warn: #b26a00;
    --c-error: #c0392b;
    --radius: 10px;
    --shadow: 0 1px 2px rgba(0,0,0,.05), 0 4px 12px rgba(0,0,0,.04);
}

html, body {
    margin: 0; padding: 0; background: var(--c-bg); color: var(--c-fg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.45;
}

.container { max-width: 1200px; margin: 0 auto; padding: 16px; }

.admin-header { background: #fff; border-bottom: 1px solid var(--c-border); }
.admin-header .container { display: flex; align-items: center; gap: 16px; padding: 10px 16px; }
.admin-header .brand { font-weight: 700; color: var(--c-fg); text-decoration: none; }
.admin-header nav { display: flex; gap: 14px; flex: 1; }
.admin-header nav a { color: var(--c-muted); text-decoration: none; padding: 6px 8px; border-radius: 6px; }
.admin-header nav a.active, .admin-header nav a:hover { color: var(--c-fg); background: #eef1f7; }
.logout-form { display: inline; margin: 0; }
.logout-form .btn-link { background: none; border: 0; color: var(--c-muted); padding: 6px 8px; cursor: pointer; }

.panel { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; margin: 16px 0; }
.panel h2 { font-size: 1.1rem; margin: 0 0 12px; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field > span { font-size: .85rem; color: var(--c-muted); }
.field.grow { flex: 1; }
input[type=text], input[type=tel], input[type=date], input[type=password], select {
    width: 100%;
    padding: 8px 10px; border: 1px solid var(--c-border); border-radius: 8px; background: #fff;
    font-size: .95rem;
}
input:focus, select:focus { outline: 2px solid var(--c-primary); outline-offset: 1px; }

button {
    background: var(--c-primary); color: #fff; border: 0;
    padding: 10px 14px; border-radius: 8px; font-size: .95rem; cursor: pointer;
}
button:hover:not(:disabled) { background: var(--c-primary-hover); }

.btn-link { background: none; color: var(--c-primary); padding: 0; cursor: pointer; border: 0; }
.btn-link:hover { text-decoration: underline; }

.btn-danger { background: var(--c-error); }
.btn-danger:hover:not(:disabled) { background: #962d20; }

a { color: var(--c-primary); }
a:hover { text-decoration: underline; }

.inline-form { display: flex; align-items: flex-end; gap: 10px; flex-wrap: wrap; }
.edit-form { display: flex; gap: 8px; margin-top: 8px; }

table.data { width: 100%; border-collapse: collapse; font-size: .92rem; }
table.data th, table.data td { padding: 8px 10px; border-bottom: 1px solid var(--c-border); text-align: left; }
table.data th { background: #f9fafc; font-weight: 600; color: var(--c-muted); font-size: .85rem; }
table.data .num { text-align: right; }
.row-disabled td { color: var(--c-muted); background: #fbfbfc; }

.filters { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; align-items: end; }
.filter-actions { display: flex; gap: 12px; align-items: center; grid-column: 1 / -1; flex-wrap: wrap; }
.btn-export { padding: 10px 14px; background: #20242a; color: #fff; border-radius: 8px; text-decoration: none; }
.btn-export:hover { background: #1a1d22; text-decoration: none; color: #fff; }

dl.kv { display: grid; grid-template-columns: 200px 1fr; gap: 6px 16px; margin: 0; }
dl.kv dt { color: var(--c-muted); }
dl.kv dd { margin: 0; }

.manual-station { margin-top: 16px; }
.manual-station summary { cursor: pointer; color: var(--c-primary); }
.manual-station form { display: flex; flex-direction: column; gap: 10px; margin-top: 8px; max-width: 600px; }

.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; }
.auth-card { background: #fff; padding: 24px; border-radius: var(--radius); box-shadow: var(--shadow); max-width: 360px; width: 100%; }
.auth-card form { display: flex; flex-direction: column; gap: 12px; margin-top: 8px; }
.auth-card h1 { margin: 0; font-size: 1.4rem; }
.muted { color: var(--c-muted); }
.warn { color: var(--c-warn); }
.error { color: var(--c-error); }

code { background: #eef1f7; padding: 2px 6px; border-radius: 4px; font-size: .85em; }

@media (max-width: 640px) {
    dl.kv { grid-template-columns: 1fr; }
    dl.kv dt { font-weight: 600; }
}