/* ==========================================================================
   CALIBRATION LAB — design system
   Industrial precision-instrument aesthetic: dark graphite, blueprint grid,
   calibration-tag amber accent, monospace data, condensed display type.
   ========================================================================== */

:root {
  --bg: #121417;
  --bg-panel: #1a1d21;
  --bg-raised: #21262b;
  --bg-input: #181b1f;
  --grid-line: rgba(255, 255, 255, 0.035);
  --border: #2b3137;
  --border-bright: #3a4148;

  --text: #e9ecef;
  --text-dim: #8e98a3;
  --text-faint: #5a636c;

  --accent: #ff8a1e;
  --accent-dim: #c96c18;
  --accent-glow: rgba(255, 138, 30, 0.35);

  --cyan: #4fd6c4;
  --ok: #36d399;
  --ok-bg: rgba(54, 211, 153, 0.12);
  --warn: #ffb020;
  --warn-bg: rgba(255, 176, 32, 0.12);
  --danger: #ff5470;
  --danger-bg: rgba(255, 84, 112, 0.12);

  --font-display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --font-body: "IBM Plex Sans", -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --radius: 3px;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 15px;
}

body {
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 36px 36px;
  color: var(--text);
  font-family: var(--font-body);
  margin: 0;
  min-height: 100vh;
  letter-spacing: 0.01em;
}

::selection {
  background: var(--accent);
  color: #161616;
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-panel); }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-dim); }

a {
  color: var(--cyan);
  text-decoration: none;
}
a:hover { color: var(--accent); }

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--text);
}

h1 { font-size: 2.6rem; line-height: 1; margin-bottom: 1.25rem; }
h3 { font-size: 1.35rem; margin-top: 2rem; margin-bottom: 0.9rem; color: var(--accent); }
h4 { font-size: 1.1rem; color: var(--text-dim); }

.container {
  max-width: 1320px;
}

/* ---------- top nav ---------- */
.lab-header {
  background: linear-gradient(180deg, var(--bg-panel), var(--bg));
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(255, 138, 30, 0.08);
}

.lab-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text) !important;
}

.lab-brand .mark {
  width: 28px;
  height: 28px;
  position: relative;
  flex-shrink: 0;
}
.lab-brand .mark::before,
.lab-brand .mark::after {
  content: "";
  position: absolute;
  background: var(--accent);
}
.lab-brand .mark::before { left: 50%; top: 0; width: 2px; height: 100%; transform: translateX(-1px); }
.lab-brand .mark::after { top: 50%; left: 0; height: 2px; width: 100%; transform: translateY(-1px); }
.lab-brand .mark { border: 2px solid var(--accent); border-radius: 50%; }
.lab-brand small {
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: block;
  margin-top: -2px;
}

.lab-nav .nav-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim) !important;
  padding: 0.5rem 0.9rem !important;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
.lab-nav .nav-link:hover,
.lab-nav .nav-link.active {
  color: var(--accent) !important;
  border-bottom-color: var(--accent);
}

/* ---------- layout shell ---------- */
main.lab-main {
  padding-top: 1rem;
  padding-bottom: 4rem;
  min-height: 70vh;
}

.lab-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-panel);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 1rem 0;
}

/* ---------- page header / eyebrow ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent);
}

/* ---------- panels / cards ---------- */
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: relative;
}
.panel::before {
  content: "";
  position: absolute;
  top: -1px; left: -1px;
  width: 10px; height: 10px;
  border-top: 2px solid var(--accent);
  border-left: 2px solid var(--accent);
}
.panel::after {
  content: "";
  position: absolute;
  bottom: -1px; right: -1px;
  width: 10px; height: 10px;
  border-bottom: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
}

.card {
  background: var(--bg-panel) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  color: var(--text);
}
.card-title {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--accent);
}
.card-text { color: var(--text-dim); }

/* ---------- stat cards ---------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-bottom: 2.5rem;
}
.stat-card {
  background: var(--bg-panel);
  padding: 1.4rem 1.5rem;
  position: relative;
}
.stat-card .num {
  font-family: var(--font-mono);
  font-size: 2.3rem;
  font-weight: 600;
  line-height: 1;
  color: var(--text);
}
.stat-card .label {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  margin-top: 0.5rem;
}
.stat-card.accent .num { color: var(--accent); }
.stat-card.ok .num { color: var(--ok); }
.stat-card.warn .num { color: var(--warn); }
.stat-card.danger .num { color: var(--danger); }

/* ---------- tables ---------- */
.table {
  --bs-table-bg: transparent;
  color: var(--text);
  border-color: var(--border);
  font-size: 0.92rem;
}
.table thead th {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  border-bottom: 1px solid var(--border-bright);
  font-weight: 500;
  padding-bottom: 0.6rem;
}
.table td {
  border-color: var(--border);
  vertical-align: middle;
  padding: 0.65rem 0.75rem;
}
.table-striped > tbody > tr:nth-of-type(odd) > * {
  --bs-table-accent-bg: var(--bg-panel);
  color: var(--text);
}
.table-hover > tbody > tr:hover > * {
  --bs-table-accent-bg: var(--bg-raised);
  color: var(--text);
}
.table code, .table .mono { font-family: var(--font-mono); color: var(--cyan); }
.mono { font-family: var(--font-mono); color: var(--cyan); }

/* ---------- badges / status chips ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  border: 1px solid currentColor;
  white-space: nowrap;
}
.chip::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.chip-ok { color: var(--ok); background: var(--ok-bg); }
.chip-warn { color: var(--warn); background: var(--warn-bg); }
.chip-danger { color: var(--danger); background: var(--danger-bg); }
.chip-neutral { color: var(--text-dim); background: var(--bg-raised); }

/* ---------- buttons ---------- */
.btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: var(--radius);
  padding: 0.5rem 1.1rem;
  border-width: 1px;
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #161616;
  font-weight: 600;
}
.btn-primary:hover {
  background: #ffa64d;
  border-color: #ffa64d;
  color: #161616;
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.btn-outline-primary { color: var(--accent); border-color: var(--accent); }
.btn-outline-primary:hover { background: var(--accent); color: #161616; }
.btn-outline-secondary { color: var(--text-dim); border-color: var(--border-bright); }
.btn-outline-secondary:hover { background: var(--bg-raised); color: var(--text); border-color: var(--text-dim); }
.btn-outline-danger { color: var(--danger); border-color: var(--danger); }
.btn-outline-danger:hover { background: var(--danger); color: #161616; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #161616; font-weight: 600; }
.btn-secondary { background: var(--bg-raised); border-color: var(--border-bright); color: var(--text); }
.btn-link { color: var(--cyan); text-decoration: none; }
.btn-link:hover { color: var(--accent); }

/* ---------- forms ---------- */
.form-control, .form-select {
  background: var(--bg-input);
  border: 1px solid var(--border-bright);
  color: var(--text);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.88rem;
}
.form-control:focus, .form-select:focus {
  background: var(--bg-input);
  color: var(--text);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-control::placeholder { color: var(--text-faint); }
.form-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-faint);
  margin-bottom: 0.35rem;
}
select.form-select option { background: var(--bg-panel); }
.text-danger { color: var(--danger) !important; font-family: var(--font-mono); font-size: 0.78rem; }

/* ---------- alerts ---------- */
.alert {
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  border-left: 3px solid var(--accent);
}
.alert-info {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--cyan);
  color: var(--text);
}

/* ---------- definition lists (detail views) ---------- */
dl.row dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-faint);
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed var(--border);
}
dl.row dd {
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed var(--border);
  color: var(--text);
}

/* ---------- certificate ---------- */
.cert {
  background: var(--bg-panel);
  border: 1px solid var(--border-bright);
  position: relative;
  padding: 2.5rem;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 24px 24px;
}
.cert::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px dashed var(--border-bright);
  pointer-events: none;
}
.cert-seal {
  position: absolute;
  top: 1.8rem;
  right: 1.8rem;
  width: 92px;
  height: 92px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  transform: rotate(-8deg);
}

/* ---------- misc ---------- */
hr { border-color: var(--border); opacity: 1; }
.text-muted { color: var(--text-faint) !important; }

.kpi-bar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.badge.bg-success { background: var(--ok) !important; color: #0c1f17; }
.badge.bg-warning { background: var(--warn) !important; color: #2a1c00; }
.badge.bg-danger { background: var(--danger) !important; color: #2a0a12; }

/* ---------- operator kiosk login ---------- */
.login-shell { max-width: 980px; margin: 2rem auto; }
.operator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}
.operator-tile {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 0.8rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s;
}
.operator-tile:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.operator-tile img, .operator-tile .avatar-fallback {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border-bright);
}
.operator-tile .avatar-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--accent);
  background: var(--bg-raised);
}
.operator-tile:hover img, .operator-tile:hover .avatar-fallback { border-color: var(--accent); }
.operator-tile .op-name { font-size: 0.85rem; text-align: center; color: var(--text); }
.operator-tile .op-code { font-size: 0.68rem; color: var(--text-faint); }

.modal-content.panel { background: var(--bg-panel); }
.modal-backdrop.show { opacity: 0.75; }

/* ---------- operator badge in nav ---------- */
.operator-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  border: 1px solid var(--border-bright);
  border-radius: 999px;
  padding: 0.25rem 0.7rem 0.25rem 0.25rem;
}
.operator-pill img, .operator-pill .avatar-fallback {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  object-fit: cover;
}
.operator-pill .avatar-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-raised);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.85rem;
}

/* ---------- barcode scan kiosk ---------- */
.scan-input {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  letter-spacing: 0.08em;
  text-align: center;
  padding: 1rem;
  background: var(--bg-input);
  border: 2px dashed var(--border-bright);
}
.scan-input:focus { border-color: var(--accent); border-style: solid; }
.scan-hint {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-top: 0.6rem;
}