/* ============================================================
   ME Platform — app shell over the Sigma industrial design tokens.
   Tokens live in ./tokens/*. This file wires them into the
   server-rendered Bootstrap layout. Square geometry, calm grey
   canvas, one interaction blue, colour only where it means
   something.
   ============================================================ */
@import url('./tokens/colors.css');
@import url('./tokens/typography.css');
@import url('./tokens/spacing.css');
@import url('./tokens/effects.css');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,400,0,0&display=swap');

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

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: var(--fs-body);
    line-height: var(--lh-body);
    color: var(--text-body);
    background: var(--surface-app);
    -webkit-font-smoothing: antialiased;
}

.material-symbols-outlined {
    font-family: 'Material Symbols Outlined';
    font-weight: normal; font-style: normal;
    font-size: 20px; line-height: 1;
    letter-spacing: normal; text-transform: none; white-space: nowrap;
    direction: ltr; -webkit-font-feature-settings: 'liga';
    -webkit-font-smoothing: antialiased; vertical-align: middle;
}

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.eyebrow {
    font-size: var(--fs-micro); font-weight: 700; letter-spacing: var(--ls-caps);
    text-transform: uppercase; color: var(--text-subtle);
}

a { color: var(--text-link); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- App layout grid ------------------------------- */
.app-shell { display: flex; min-height: 100vh; }
.app-main  { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.app-body  { flex: 1; padding: var(--space-7); max-width: var(--container-max); width: 100%; }

/* ---------- Side navigation (dark icon+label rail) -------- */
.side-nav {
    width: var(--nav-w); flex: none; background: var(--surface-rail);
    color: rgba(255,255,255,.62); display: flex; flex-direction: column;
    position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.side-nav__brand {
    display: flex; align-items: center; gap: 10px; height: var(--appbar-h);
    padding: 0 20px; flex: none; border-bottom: 1px solid rgba(255,255,255,.1);
}
.side-nav__brand .bar { width: 5px; height: 22px; background: var(--brand-red); flex: none; }
.side-nav__brand .wordmark { font-size: 16px; font-weight: 700; letter-spacing: .03em; color: #fff; }
.side-nav__brand .sub { font-size: 11px; color: rgba(255,255,255,.5); margin-left: auto; letter-spacing: var(--ls-caps); text-transform: uppercase; }
.side-nav__section { padding: 14px 20px 6px; font-size: 11px; font-weight: 700; letter-spacing: var(--ls-caps); text-transform: uppercase; color: rgba(255,255,255,.42); }
.side-nav__link {
    display: flex; align-items: center; gap: 12px; height: 44px; padding: 0 20px 0 17px;
    color: rgba(255,255,255,.62); border-left: 3px solid transparent;
    font-size: 14px; transition: background var(--dur-fast); white-space: nowrap;
}
.side-nav__link:hover { background: rgba(255,255,255,.06); text-decoration: none; color: #fff; }
.side-nav__link .material-symbols-outlined { font-size: 22px; color: inherit; }
.side-nav__link.active { color: #fff; background: rgba(255,255,255,.12); border-left-color: var(--brand-blue); font-weight: 600; }
.side-nav__link.active .material-symbols-outlined { color: #fff; }
.side-nav__badge {
    margin-left: auto; min-width: 18px; height: 18px; padding: 0 5px; border-radius: var(--radius-pill);
    background: var(--brand-blue); color: #fff; font-size: 11px; font-weight: 600;
    display: inline-flex; align-items: center; justify-content: center;
}

/* ---------- App bar --------------------------------------- */
.app-bar {
    display: flex; align-items: center; gap: 14px; height: var(--appbar-h);
    padding: 0 var(--space-7); flex: none; background: var(--surface-header);
    border-bottom: 1px solid var(--border-subtle); position: sticky; top: 0; z-index: 20;
}
.app-bar__title { font-size: 16px; font-weight: 600; color: var(--text-strong); white-space: nowrap; }
.app-bar__spacer { flex: 1; }
.app-bar__env {
    font-size: 11px; font-weight: 600; letter-spacing: var(--ls-caps); text-transform: uppercase;
    color: var(--text-muted); border: 1px solid var(--border-default); padding: 3px 8px;
}
.app-bar__user { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-body); }
.app-bar__avatar {
    width: 28px; height: 28px; border-radius: var(--radius-pill); background: var(--brand-blue);
    color: #fff; display: inline-flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 600;
}

/* ---------- Page header ----------------------------------- */
.page-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: var(--space-6); gap: 16px; flex-wrap: wrap; }
.page-head h1 { font-size: var(--fs-h1); line-height: var(--lh-h1); font-weight: 600; color: var(--text-strong); margin: 0; }
.page-head .lede { color: var(--text-muted); font-size: var(--fs-sm); margin-top: 2px; }
.breadcrumb-nx { font-size: 12px; color: var(--text-muted); margin-bottom: 6px; display: flex; gap: 6px; align-items: center; }
.breadcrumb-nx .material-symbols-outlined { font-size: 14px; }

/* ---------- Cards ----------------------------------------- */
.card-nx {
    background: var(--surface-card); border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-card); margin-bottom: var(--space-6);
}
.card-nx__head {
    display: flex; align-items: center; gap: 10px; padding: 12px 16px;
    border-bottom: 1px solid var(--border-subtle);
}
.card-nx__head h2, .card-nx__head h3 { font-size: var(--fs-title); font-weight: 600; color: var(--text-strong); margin: 0; }
.card-nx__head .spacer { flex: 1; }
.card-nx__body { padding: 16px; }
.card-nx--accent-run   { border-left: var(--bw-accent) solid var(--state-run); }
.card-nx--accent-warn  { border-left: var(--bw-accent) solid var(--state-warn); }
.card-nx--accent-fault { border-left: var(--bw-accent) solid var(--state-fault); }
.card-nx--accent-info  { border-left: var(--bw-accent) solid var(--state-info); }

/* ---------- KPI tiles ------------------------------------- */
.kpi-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: var(--space-5); margin-bottom: var(--space-6); }
.kpi {
    position: relative; background: var(--surface-card); border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-card); padding: 14px 16px; display: flex; flex-direction: column; gap: 8px;
    border-left: var(--bw-accent) solid var(--gray-300);
}
.kpi--run { border-left-color: var(--state-run); }
.kpi--warn { border-left-color: var(--state-warn); }
.kpi--fault { border-left-color: var(--state-fault); }
.kpi--info { border-left-color: var(--state-info); }
.kpi__label { font-size: 11px; font-weight: 600; letter-spacing: var(--ls-caps); text-transform: uppercase; color: var(--text-subtle); display: flex; justify-content: space-between; align-items: center; }
.kpi__value { font-family: var(--font-mono); font-size: var(--fs-metric); line-height: 1; font-weight: 600; color: var(--text-strong); font-variant-numeric: tabular-nums; }
.kpi__unit { font-size: 15px; font-weight: 500; color: var(--text-muted); margin-left: 4px; }
.kpi__caption { font-size: 12px; color: var(--text-muted); }

/* ---------- Status pills ---------------------------------- */
.pill {
    display: inline-flex; align-items: center; gap: 7px; height: 24px; padding: 0 10px 0 8px;
    font-size: 12px; font-weight: 600; line-height: 1; border-radius: var(--radius-pill); white-space: nowrap;
}
.pill .dot { position: relative; width: 8px; height: 8px; flex: none; }
.pill .dot::before { content: ''; position: absolute; inset: 0; border-radius: 50%; background: currentColor; }
.pill--run   { color: var(--state-run); background: var(--state-run-bg); }
.pill--warn  { color: var(--state-warn-fg); background: var(--state-warn-bg); }
.pill--fault { color: var(--state-fault); background: var(--state-fault-bg); }
.pill--idle  { color: var(--gray-600); background: var(--state-idle-bg); }
.pill--info  { color: var(--state-info); background: var(--state-info-bg); }
/* lifecycle state pills */
.pill--draft { color: var(--gray-600); background: var(--state-idle-bg); }
.pill--provisional { color: var(--state-warn-fg); background: var(--state-warn-bg); }
.pill--approved { color: var(--state-run); background: var(--state-run-bg); }
.pill--active { color: var(--state-run); background: var(--state-run-bg); }
.pill--obsolete { color: var(--gray-600); background: var(--state-idle-bg); }
.pill--ctq { color: var(--brand-red); background: var(--state-fault-bg); }

/* ---------- Buttons --------------------------------------- */
.btn-nx {
    display: inline-flex; align-items: center; justify-content: center; gap: 7px;
    height: var(--control-h); padding: 0 16px; border: 1px solid transparent;
    font-family: var(--font-sans); font-size: 14px; font-weight: 600; cursor: pointer;
    background: var(--brand-blue); color: #fff; transition: background var(--dur-fast); white-space: nowrap;
}
.btn-nx:hover { background: var(--brand-blue-hover); text-decoration: none; color: #fff; }
.btn-nx:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.btn-nx .material-symbols-outlined { font-size: 18px; }
.btn-nx--ghost { background: transparent; color: var(--text-body); border-color: var(--border-default); }
.btn-nx--ghost:hover { background: var(--gray-100); color: var(--text-strong); }
.btn-nx--danger { background: var(--brand-red); }
.btn-nx--danger:hover { background: var(--brand-red-hover); }
.btn-nx--sm { height: var(--control-h-sm); padding: 0 10px; font-size: 13px; }
.btn-nx[disabled], .btn-nx:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- Data table ------------------------------------ */
.table-nx { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
.table-nx thead th {
    text-align: left; font-size: 11px; font-weight: 700; letter-spacing: var(--ls-caps);
    text-transform: uppercase; color: var(--text-subtle); padding: 10px 14px;
    border-bottom: 1px solid var(--border-default); background: var(--surface-sunken); white-space: nowrap;
}
.table-nx tbody td { padding: 0 14px; height: var(--row-h); border-bottom: 1px solid var(--border-subtle); color: var(--text-body); vertical-align: middle; }
.table-nx tbody tr:hover { background: var(--gray-050); }
.table-nx td.num, .table-nx th.num { text-align: right; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.table-nx .row-link { color: var(--text-link); font-weight: 600; }

/* ---------- Forms ----------------------------------------- */
.form-row { margin-bottom: var(--space-5); }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--space-5); }
.label-nx { display: block; font-size: 12px; font-weight: 600; color: var(--text-body); margin-bottom: 5px; }
.label-nx .req { color: var(--brand-red); }
.input-nx, .select-nx, .textarea-nx {
    width: 100%; height: var(--control-h); padding: 0 12px; border: 1px solid var(--border-default);
    background: var(--surface-card); font-family: var(--font-sans); font-size: 14px; color: var(--text-strong);
}
.textarea-nx { height: auto; min-height: 76px; padding: 10px 12px; resize: vertical; }
.input-nx:focus, .select-nx:focus, .textarea-nx:focus { outline: none; border-color: var(--border-focus); box-shadow: var(--focus-ring-inset); }
.hint-nx { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.help-bounds { font-family: var(--font-mono); }

/* ---------- Alerts / flash -------------------------------- */
.alert-nx { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border: 1px solid; font-size: 13px; margin-bottom: var(--space-5); }
.alert-nx .material-symbols-outlined { font-size: 20px; flex: none; }
.alert-nx--ok { background: var(--state-run-bg); border-color: var(--state-run); color: #1a5c37; }
.alert-nx--warn { background: var(--state-warn-bg); border-color: var(--state-warn); color: var(--state-warn-fg); }
.alert-nx--error { background: var(--state-fault-bg); border-color: var(--state-fault); color: #9a1418; }
.alert-nx--info { background: var(--state-info-bg); border-color: var(--state-info); color: #0a5a8c; }

/* ---------- Misc ------------------------------------------ */
.muted { color: var(--text-muted); }
.tag-mono { font-family: var(--font-mono); font-size: 12px; background: var(--gray-100); padding: 1px 6px; border: 1px solid var(--border-subtle); }
.empty-state { text-align: center; padding: 48px 16px; color: var(--text-muted); }
.empty-state .material-symbols-outlined { font-size: 44px; color: var(--gray-300); }
.def-list { display: grid; grid-template-columns: 160px 1fr; gap: 8px 16px; font-size: 14px; }
.def-list dt { color: var(--text-muted); }
.def-list dd { margin: 0; color: var(--text-strong); }
.section-gap { margin-top: var(--space-8); }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.gap-2 { gap: 8px; } .d-flex-nx { display: flex; }

/* ---------- Guided changeover screen (touch-first) -------- */
.co { display: flex; flex-direction: column; gap: var(--space-5); }
.co-bar {
    display: grid; grid-template-columns: auto 1.4fr 1fr auto; gap: 24px; align-items: center;
    background: var(--surface-card); border: 1px solid var(--border-subtle); box-shadow: var(--shadow-card);
    padding: 14px 20px;
}
.co-bar__val { font-size: 20px; font-weight: 600; color: var(--text-strong); margin-top: 2px; }
.co-bar__timer .co-bar__val { font-size: 30px; font-variant-numeric: tabular-nums; }
.co-bar__timer.over .co-bar__val { color: var(--brand-red); }
.co-bar__timer.under .co-bar__val { color: var(--state-run); }

.co-prep {
    display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
    background: var(--surface-card); border: 1px solid var(--border-subtle);
    border-left: var(--bw-accent) solid var(--state-info); padding: 10px 16px;
}
.co-chip {
    display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 10px;
    background: var(--gray-100); border: 1px solid var(--border-subtle); font-size: 13px; font-family: var(--font-mono);
}

.co-grid { display: grid; grid-template-columns: 1.7fr 1fr; gap: 24px; align-items: start; }

.co-card {
    background: var(--surface-card); border: 1px solid var(--border-subtle); box-shadow: var(--shadow-card);
    border-left: var(--bw-accent) solid var(--brand-blue); padding: 28px; min-height: 320px;
    display: flex; flex-direction: column; gap: 14px;
}
.co-card--critical { border-left-color: var(--state-fault); }
.co-card--fpok { border-left-color: var(--state-warn); }
.co-card--done { border-left-color: var(--state-run); align-items: flex-start; text-align: left; }
.co-card h2 { font-size: 24px; line-height: 30px; font-weight: 600; color: var(--text-strong); margin: 0; }
.co-instruction { font-size: 26px !important; line-height: 32px !important; }

.co-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 6px 0; }
.co-metric { background: var(--surface-sunken); border: 1px solid var(--border-subtle); padding: 16px 18px; }
.co-metric__val { font-size: 46px; line-height: 1; font-weight: 600; color: var(--text-strong); font-variant-numeric: tabular-nums; margin-top: 6px; }
.co-metric__uom { font-size: 18px; font-weight: 500; color: var(--text-muted); margin-left: 8px; }
.co-more { margin-top: 4px; }
.co-more summary { cursor: pointer; font-size: 13px; color: var(--text-link); }
.co-confirm { display: flex; gap: 12px; align-items: center; margin-top: auto; padding-top: 12px; flex-wrap: wrap; }

.co-steplist { list-style: none; margin: 0; padding: 0; }
.co-step { display: flex; align-items: center; gap: 10px; padding: 0 14px; height: 44px; border-bottom: 1px solid var(--border-subtle); font-size: 13px; color: var(--text-body); }
.co-step__icon { font-size: 20px; color: var(--gray-300); flex: none; }
.co-step.is-done { color: var(--text-muted); }
.co-step.is-done .co-step__icon { color: var(--state-run); }
.co-step.is-current { background: var(--brand-blue-tint); font-weight: 600; color: var(--text-strong); }
.co-step.is-current .co-step__icon { color: var(--brand-blue); }
.co-step__seq { flex: none; width: 20px; color: var(--text-subtle); }
.co-step__txt { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.co-step__crit { font-size: 18px; color: var(--state-fault); flex: none; }

@media (max-width: 1100px) {
    .co-grid { grid-template-columns: 1fr; }
    .co-bar { grid-template-columns: 1fr 1fr; row-gap: 14px; }
}

/* ---------- Login ----------------------------------------- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--gray-100); }
.login-card { width: 400px; max-width: 92vw; background: #fff; border: 1px solid var(--border-subtle); box-shadow: var(--shadow-raised); }
.login-card__head { display: flex; align-items: center; gap: 10px; padding: 20px 24px; border-bottom: 1px solid var(--border-subtle); }
.login-card__head .bar { width: 5px; height: 26px; background: var(--brand-red); }
.login-card__head .wordmark { font-size: 18px; font-weight: 700; letter-spacing: .03em; color: var(--text-strong); }
.login-card__body { padding: 24px; }
.login-hint { font-size: 12px; color: var(--text-muted); margin-top: 16px; line-height: 1.7; }