/* Base styles for Phase 2. The full dashboard design system arrives in Phase 12. */
:root {
    --bg: #f5f7fa;
    --surface: #ffffff;
    --text: #1b2430;
    --muted: #5d6b7c;
    --accent: #0b6e4f;
    --border: #dde3ea;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #11161d;
        --surface: #1a212b;
        --text: #e6ebf1;
        --muted: #9aa7b6;
        --accent: #3ccf97;
        --border: #2a3440;
    }
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}
.container { max-width: 640px; margin: 0 auto; padding: 64px 16px; }
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px;
}
.eyebrow {
    margin: 0 0 8px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--accent);
}
h1 { margin: 0 0 12px; font-size: 26px; line-height: 1.25; }
a { color: var(--accent); }
.muted { color: var(--muted); font-size: 14px; }
.meta { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 20px 0; }
.meta dt { color: var(--muted); }
.meta dd { margin: 0; font-weight: 600; }
.debug pre { overflow-x: auto; font-size: 12px; background: var(--bg); padding: 12px; border-radius: 8px; }

/* ---- Phase 4: auth pages, app shell, forms ---- */
:root { --danger: #b42318; --danger-bg: #fdecea; --ok-bg: #e7f6ef; --warn: #9a6700; }
@media (prefers-color-scheme: dark) {
    :root { --danger: #ff8a80; --danger-bg: #3a1d1b; --ok-bg: #173327; --warn: #e3b341; }
}
.auth-body { display: flex; min-height: 100vh; align-items: center; justify-content: center; }
.auth-wrap { width: 100%; max-width: 420px; padding: 32px 16px; }
.brand { text-align: center; font-weight: 700; font-size: 18px; margin: 0 0 16px; }
.center { text-align: center; }
.small { font-size: 14px; }
.warn { color: var(--warn); }
.form { display: grid; gap: 8px; margin: 16px 0; }
.form label { font-weight: 600; font-size: 14px; margin-top: 8px; }
.form input {
    font: inherit; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
    background: var(--bg); color: var(--text); width: 100%;
}
.form input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.code-input { font-size: 22px; letter-spacing: .2em; text-align: center; }
.button {
    display: inline-block; margin-top: 12px; padding: 10px 16px; border: 0; border-radius: 8px;
    background: var(--accent); color: #fff; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; text-align: center;
}
@media (prefers-color-scheme: dark) { .button { color: #0b1a13; } }
.button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.link-button { background: none; border: 0; padding: 0; color: var(--accent); font: inherit; cursor: pointer; text-decoration: underline; }
.inline { display: inline; }
.alert { border-radius: 8px; padding: 10px 12px; margin-bottom: 16px; font-size: 14px; }
.alert ul { margin: 0; padding-left: 18px; }
.alert-error { background: var(--danger-bg); color: var(--danger); }
.alert-ok { background: var(--ok-bg); color: var(--text); }
.secret {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 18px; letter-spacing: .08em;
    background: var(--bg); border: 1px dashed var(--border); border-radius: 8px; padding: 10px; margin: 8px 0; word-break: break-all;
}
.steps { padding-left: 20px; display: grid; gap: 10px; }
.codes { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.codes code { display: block; padding: 8px; background: var(--bg); border-radius: 6px; text-align: center; font-size: 16px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 16px; background: var(--surface); border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.brand-link { font-weight: 700; color: var(--text); text-decoration: none; }
.topnav { display: flex; gap: 16px; align-items: center; }
.topnav a { color: var(--text); text-decoration: none; }
.page { max-width: 1100px; margin: 0 auto; padding: 24px 16px 48px; display: grid; gap: 16px; }
.card.narrow { max-width: 480px; }
.grid-2 { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
h2 { font-size: 18px; margin: 0 0 12px; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.table th { color: var(--muted); font-weight: 600; }
.card { overflow-x: auto; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; background: var(--border); }
.badge-ok { background: var(--ok-bg); color: var(--accent); }

/* ---- Phase 5: user management ---- */
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.page-head h1 { margin: 0; }
.filters, .inline-form { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 12px; }
.filters input, .filters select, .inline-form select, .inline-form input, .form select {
    font: inherit; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text);
}
.filters .button, .inline-form .button { margin-top: 0; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.actions .button { margin-top: 0; }
.button.danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
.field-error { color: var(--danger); font-size: 13px; margin: 0; }
.status-active { background: var(--ok-bg); color: var(--accent); }
.status-disabled { background: var(--danger-bg); color: var(--danger); }
.status-pending { background: var(--border); }
.pager { display: flex; gap: 16px; align-items: center; }
.matrix td, .matrix th { white-space: nowrap; }
.matrix tr.group th { background: var(--bg); color: var(--text); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---- Phase 6: centres ---- */
.centre-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.centre-card { display: grid; gap: 6px; color: var(--text); text-decoration: none; }
.centre-card:hover { border-color: var(--accent); }
.centre-card-head { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.centre-card-head .eyebrow { margin: 0; }
.meter { width: 100%; height: 8px; border: 0; border-radius: 999px; overflow: hidden; background: var(--border); appearance: none; }
.meter::-webkit-progress-bar { background: var(--border); border-radius: 999px; }
.meter::-webkit-progress-value { background: var(--accent); border-radius: 999px; }
.meter::-moz-progress-bar { background: var(--accent); border-radius: 999px; }
.badge-exam { background: #fff4ce; color: #7a5b00; }
@media (prefers-color-scheme: dark) { .badge-exam { background: #3d3212; color: #f5d97a; } }
.stat-row { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.stat { display: grid; gap: 4px; padding: 16px; }
.stat-label { color: var(--muted); font-size: 13px; }
.stat-value { font-size: 26px; font-weight: 700; }
.stat-value.ok { color: var(--accent); }
.stat-value.bad { color: var(--danger); }
.checkbox { display: flex; gap: 8px; align-items: center; font-weight: 400; }
.device-picker { display: grid; gap: 6px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); margin-bottom: 16px; }