:root {
    --bg:          #f6f7f9;
    --surface:     #ffffff;
    --surface-2:   #fbfbfc;
    --border:      #e3e6ea;
    --border-firm: #d2d7dd;
    --text:        #17191c;
    --text-dim:    #61666e;
    --text-faint:  #8b9098;
    --accent:      #2f6df6;
    --accent-ink:  #ffffff;
    --danger:      #c8342b;
    --danger-bg:   #fdeceb;
    --radius:      10px;
    --shadow:      0 1px 2px rgba(16, 18, 22, .05), 0 4px 16px rgba(16, 18, 22, .05);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg:          #14161a;
        --surface:     #1b1e23;
        --surface-2:   #21252b;
        --border:      #2b3037;
        --border-firm: #3a4048;
        --text:        #e9ebee;
        --text-dim:    #a2a8b2;
        --text-faint:  #767d87;
        --accent:      #4f86ff;
        --accent-ink:  #0d1016;
        --danger:      #ff6b60;
        --danger-bg:   #331d1b;
        --shadow:      0 1px 2px rgba(0, 0, 0, .3), 0 4px 20px rgba(0, 0, 0, .28);
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto,
          Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

/* ─────────────────────────── login ─────────────────────────── */

.login-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-card {
    width: 100%;
    max-width: 380px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 32px;
}

.brand {
    font-size: 19px;
    font-weight: 650;
    letter-spacing: -.01em;
    margin: 0 0 4px;
}

.brand-sub {
    color: var(--text-dim);
    font-size: 13.5px;
    margin: 0 0 26px;
}

label {
    display: block;
    font-size: 12.5px;
    font-weight: 550;
    color: var(--text-dim);
    margin-bottom: 6px;
    letter-spacing: .01em;
}

input[type="email"], input[type="password"], input[type="text"] {
    width: 100%;
    padding: 10px 12px;
    font: inherit;
    color: var(--text);
    background: var(--surface-2);
    border: 1px solid var(--border-firm);
    border-radius: 8px;
    margin-bottom: 16px;
    transition: border-color .12s, box-shadow .12s;
}

input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

button {
    width: 100%;
    padding: 10px 14px;
    font: inherit;
    font-weight: 550;
    color: var(--accent-ink);
    background: var(--accent);
    border: 1px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: filter .12s;
}

button:hover:not(:disabled) { filter: brightness(1.07); }
button:disabled { opacity: .6; cursor: default; }

.error {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid color-mix(in srgb, var(--danger) 28%, transparent);
    border-radius: 8px;
    padding: 9px 12px;
    font-size: 13.5px;
    margin-bottom: 16px;
}

/* ─────────────────────────── shell ─────────────────────────── */

header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
}

.header-inner {
    max-width: 1080px;
    margin: 0 auto;
    height: 58px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-inner .brand { margin: 0; flex: 1; }

.who {
    font-size: 13px;
    color: var(--text-dim);
    text-align: right;
    line-height: 1.35;
}

.who .role {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--text-faint);
}

.link-btn {
    width: auto;
    padding: 7px 13px;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-dim);
    background: transparent;
    border: 1px solid var(--border-firm);
}

.link-btn:hover:not(:disabled) {
    filter: none;
    color: var(--text);
    background: var(--surface-2);
}

main {
    max-width: 1080px;
    margin: 0 auto;
    padding: 32px 24px 64px;
}

/* ─────────────────────────── app grid ─────────────────────────── */

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 14px;
}

.tile {
    display: block;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    text-decoration: none;
    color: inherit;
    transition: border-color .12s, transform .12s, box-shadow .12s;
}

.tile:hover {
    border-color: var(--border-firm);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.tile-icon { font-size: 22px; line-height: 1; margin-bottom: 10px; }
.tile-name { font-weight: 600; margin-bottom: 3px; }
.tile-desc { font-size: 13px; color: var(--text-dim); }

/* ─────────────────────────── empty state ─────────────────────────── */

.empty {
    background: var(--surface);
    border: 1px dashed var(--border-firm);
    border-radius: var(--radius);
    padding: 56px 32px;
    text-align: center;
}

.empty h2 {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 8px;
}

.empty p {
    color: var(--text-dim);
    font-size: 14px;
    margin: 0 auto;
    max-width: 46ch;
}

.muted { color: var(--text-faint); font-size: 13px; }
[hidden] { display: none !important; }

/* ─────────────────────────── nav ─────────────────────────── */

.nav { display: flex; gap: 4px; }

.nav a {
    padding: 6px 11px;
    border-radius: 7px;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-dim);
    text-decoration: none;
}

.nav a:hover { background: var(--surface-2); color: var(--text); }
.nav a.current { background: var(--surface-2); color: var(--text); font-weight: 550; }

/* ─────────────────────────── panels ─────────────────────────── */

.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}

.panel-title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--text-faint);
    margin: 0 0 16px;
}

.notice {
    background: color-mix(in srgb, var(--accent) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent) 32%, transparent);
    color: var(--text);
    border-radius: 8px;
    padding: 10px 13px;
    font-size: 13.5px;
    margin-bottom: 18px;
    word-break: break-word;
}

/* ─────────────────────────── add-user form ─────────────────────────── */

.row-form {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: flex-end;
}

.field { flex: 1 1 170px; }
.field-narrow { flex: 0 0 120px; }
.field-action { flex: 0 0 auto; }
.field input, .field select { margin-bottom: 0; }
.field-action button { width: auto; padding: 10px 18px; }

select {
    width: 100%;
    padding: 10px 12px;
    font: inherit;
    color: var(--text);
    background: var(--surface-2);
    border: 1px solid var(--border-firm);
    border-radius: 8px;
}

/* ─────────────────────────── table ─────────────────────────── */

.table-scroll { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }

th {
    text-align: left;
    font-size: 11.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--text-faint);
    padding: 0 12px 9px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

td {
    padding: 11px 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }
tr.inactive td { opacity: .55; }
.right { text-align: right; }
.faint { color: var(--text-faint); }

.tag {
    display: inline-block;
    font-size: 10.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--accent);
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    border-radius: 4px;
    padding: 1px 5px;
    vertical-align: 1px;
}

.inline-select {
    width: auto;
    padding: 5px 8px;
    font-size: 13px;
    border-radius: 6px;
}

.actions { white-space: nowrap; }

.mini {
    width: auto;
    padding: 5px 10px;
    margin-left: 6px;
    font-size: 12.5px;
    font-weight: 500;
    color: var(--text-dim);
    background: transparent;
    border: 1px solid var(--border-firm);
    border-radius: 6px;
}

.mini:hover:not(:disabled) { filter: none; color: var(--text); background: var(--surface-2); }
.mini.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 35%, transparent); }
.mini.armed { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
.mini.danger.armed { background: var(--danger); border-color: var(--danger); color: #fff; }

.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; }