/* ── LAB design tokens ────────────────────────────────── */

:root {
    --paper: #FBFAF7;
    --ink: #14171A;
    --signal: #E8501E;
    --danger: #B3261E;
    --success: #2E9E5F;

    --font-sans: 'IBM Plex Sans', system-ui, sans-serif;
    --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
button, input, select { border-radius: 0; }

body {
    font-family: var(--font-sans);
    background: var(--paper);
    color: var(--ink);
    min-height: 100vh;
    display: flex;
}

/* ── Sidebar (app shell) ──────────────────────────────── */

.sidebar {
    width: 230px;
    flex-shrink: 0;
    background: var(--ink);
    min-height: 100vh;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
}

.logo {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 0.28em;
    font-weight: 600;
    color: var(--paper);
    padding: 0 10px;
    margin-bottom: 32px;
}

.logo-accent { color: var(--signal); }

.nav-section {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--paper) 45%, transparent);
    font-weight: 600;
    padding: 0 10px;
    margin-bottom: 10px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--paper) 70%, transparent);
    text-decoration: none;
    margin-bottom: 2px;
}

.nav-item svg { width: 17px; height: 17px; flex-shrink: 0; }

.nav-item:hover { background: color-mix(in srgb, var(--paper) 10%, transparent); }

.nav-item.active {
    background: var(--paper);
    color: var(--ink);
    font-weight: 600;
}

.sidebar-spacer { flex: 1; }

.btn-logout {
    padding: 8px 10px;
    background: transparent;
    color: color-mix(in srgb, var(--paper) 55%, transparent);
    border: 1px solid color-mix(in srgb, var(--paper) 30%, transparent);
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    text-align: center;
}
.btn-logout:hover { color: var(--danger); border-color: var(--danger); }

/* ── Main area ───────────────────────────────────────── */

main {
    flex: 1;
    padding: 32px 40px;
    max-width: 1100px;
    min-width: 0;
}

.view { display: none; }
.view.active { display: block; }

.card {
    background: var(--paper);
    border: 1px solid var(--ink);
    padding: 28px 32px;
}

.card + .card { margin-top: 24px; }

.card-title {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--ink) 50%, transparent);
    font-weight: 600;
    margin-bottom: 8px;
}

/* ── Form rows ───────────────────────────────────────── */

.form-row {
    display: flex;
    align-items: center;
    min-height: 52px;
    border-bottom: 1px solid color-mix(in srgb, var(--ink) 12%, transparent);
    gap: 0;
}

.form-row:last-of-type { border-bottom: none; }

.form-row label {
    width: 180px;
    flex-shrink: 0;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--ink) 50%, transparent);
    font-weight: 600;
}

.field-group {
    flex: 1;
    display: flex;
    gap: 8px;
    align-items: center;
}

input, select {
    flex: 1;
    padding: 7px 2px;
    border: none;
    border-bottom: 2px solid var(--ink);
    font-size: 0.88rem;
    font-family: var(--font-sans);
    color: var(--ink);
    background: transparent;
    outline: none;
}

input:focus, select:focus { border-bottom-color: var(--signal); caret-color: var(--signal); }

input.narrow  { flex: 0 0 130px; }
input.wide    { flex: 3; }
input.short   { flex: 1; }
input.medium  { flex: 2; }

input[readonly] {
    color: color-mix(in srgb, var(--ink) 35%, transparent);
    border-bottom-color: color-mix(in srgb, var(--ink) 12%, transparent);
    cursor: not-allowed;
}

.field-hint {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--ink) 40%, transparent);
    white-space: nowrap;
}

/* Status select coloring */
select.status-contacted {
    background: var(--success); color: var(--paper); border-bottom-color: var(--success);
    font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase;
    font-weight: 500; padding: 4px 8px;
}
select.status-active {
    background: var(--signal); color: var(--paper); border-bottom-color: var(--signal);
    font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase;
    font-weight: 500; padding: 4px 8px;
}

/* Form actions */
.form-actions {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
}

.msg-ok  {
    font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase;
    color: var(--success);
}
.msg-err {
    font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase;
    color: var(--danger);
}

.btn-primary {
    padding: 10px 22px;
    background: var(--ink);
    color: var(--paper);
    border: none;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-weight: 500;
    cursor: pointer;
}
.btn-primary:hover { background: color-mix(in srgb, var(--ink) 85%, var(--paper) 15%); }

.btn-ghost {
    padding: 10px 22px;
    background: transparent;
    color: color-mix(in srgb, var(--ink) 55%, transparent);
    border: 1px solid color-mix(in srgb, var(--ink) 30%, transparent);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    cursor: pointer;
}
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }

.btn-danger {
    padding: 9px 18px;
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
}
.btn-danger:hover { background: var(--danger); color: var(--paper); }

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

table { width: 100%; border-collapse: collapse; }

th {
    text-align: left;
    font-family: var(--font-mono);
    font-size: 0.64rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--ink) 50%, transparent);
    font-weight: 600;
    padding: 8px 12px 10px 12px;
    border-bottom: 1px solid var(--ink);
}

/* Sortable headers. The caret is a CSS triangle rather than a glyph so it inherits the header
   colour exactly and stays crisp at 0.64rem, and it keeps its space at zero opacity so switching
   columns never shifts the header row. */
th.sortable {
    cursor: pointer;
    user-select: none;
}

th.sortable::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 6px;
    vertical-align: 2px;
    border-left: 3px solid transparent;
    border-right: 3px solid transparent;
    border-bottom: 4px solid currentColor;
    opacity: 0;
}

th.sortable:not(.sorted):hover { color: var(--ink); }
th.sortable:not(.sorted):hover::after { opacity: 0.35; }

/* Only the column actually driving the order earns the accent. */
th.sorted { color: var(--signal); }
th.sorted::after { opacity: 1; }
th.sorted-desc::after {
    border-bottom: none;
    border-top: 4px solid currentColor;
}

td {
    padding: 12px;
    font-size: 0.88rem;
    border-bottom: 1px solid color-mix(in srgb, var(--ink) 12%, transparent);
    vertical-align: middle;
}

tbody tr { cursor: pointer; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: color-mix(in srgb, var(--ink) 5%, var(--paper) 95%); }

.name-cell { font-weight: 600; }

.badge {
    display: inline-block;
    padding: 2px 8px;
    font-family: var(--font-mono);
    font-size: 0.64rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-weight: 500;
}
.badge-contacted { background: var(--success); color: var(--paper); }
.badge-active    { background: var(--signal); color: var(--paper); }

/* Presence. Mono because it's chrome, not content — same call as .badge and .empty-cell. */
.last-seen {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--ink) 60%, transparent);
    white-space: nowrap;
}

/* Only a live member earns the accent; the dot is what makes "online" scannable down a column. */
.last-seen-online {
    color: var(--signal);
    font-weight: 500;
}
.last-seen-online::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    margin-right: 6px;
    vertical-align: 1px;
    background: var(--signal);
}

/* Dimmer still than a real timestamp: "never" is an absence, not a value. */
.last-seen-never { color: color-mix(in srgb, var(--ink) 35%, transparent); }

.empty-cell {
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--ink) 40%, transparent);
    padding: 32px !important;
    cursor: default;
}

/* ── User detail ─────────────────────────────────────── */

.detail-header {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.avatar {
    width: 84px;
    height: 84px;
    flex-shrink: 0;
    background: var(--ink);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--paper);
}

.avatar svg { width: 48px; height: 48px; }

.detail-name {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.detail-status { margin: 4px 0 8px; }

.detail-meta {
    margin-bottom: 14px;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--ink) 45%, transparent);
}

.detail-contact {
    display: flex;
    gap: 56px;
    font-size: 0.85rem;
    color: color-mix(in srgb, var(--ink) 55%, transparent);
    line-height: 1.5;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 8px;
    margin: 24px 4px 0;
}

.tab {
    padding: 10px 16px 8px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--ink) 45%, transparent);
    background: none;
    border: none;
    border-bottom: 2px solid color-mix(in srgb, var(--ink) 20%, transparent);
    cursor: pointer;
    flex: 0 0 auto;
}

.tab:hover { color: var(--ink); }

.tab.active {
    color: var(--signal);
    font-weight: 600;
    border-bottom-color: var(--signal);
}

.tab-panel { display: none; margin-top: 24px; }
.tab-panel.active { display: block; }

.coming-soon {
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--ink) 40%, transparent);
    padding: 48px 0;
}

.danger-row {
    display: flex;
    justify-content: flex-end;
    margin-top: 24px;
}

/* Not found */
.notfound {
    text-align: center;
    padding: 64px 0;
    color: color-mix(in srgb, var(--ink) 55%, transparent);
    font-size: 0.9rem;
}
.notfound a { color: var(--signal); }

/* ── Login page ──────────────────────────────────────── */

header {
    background: var(--ink);
    color: var(--paper);
    padding: 14px 32px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.28em;
    font-weight: 600;
    text-transform: uppercase;
}

.login-page {
    display: block;
}

.login-page main {
    max-width: 400px;
    margin: 80px auto;
    padding: 0 24px;
}

.login-page .card-title { margin-bottom: 24px; }

.login-page .form-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    margin-bottom: 16px;
    min-height: auto;
    border-bottom: none;
}

.login-page label {
    width: auto;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--ink) 50%, transparent);
    font-weight: 600;
}

.login-page input { width: 100%; }

.login-page .btn-primary { width: 100%; margin-top: 8px; }

.login-page .msg-err { margin-top: 12px; text-align: center; }