/* ==========================================================
   Bosch Production Management Portal (BPMP) design system
   Palette: graphite test-bench + steel-blue/amber signal accents.
   Fonts: system stacks only (no external font requests -> CSP-safe
   with default-src 'self'; swap in self-hosted webfonts under
   /assets/fonts if you want Space Grotesk / JetBrains Mono).
   ========================================================== */

:root {
  --bg: #14181C;
  --panel: #1B2127;
  --panel-alt: #222A32;
  --border: #2B333C;
  --text: #E8EAED;
  --text-muted: #8A94A3;
  --text-faint: #5D6672;

  --pass: #3DDC84;
  --fail: #E5484D;
  --warn: #F5A623;

  --brand-primary: #3E7CB1;
  --brand-accent: #F5A623;

  --font-display: 'Segoe UI Semibold', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;

  --radius: 6px;
  --shadow: 0 8px 24px rgba(0,0,0,0.35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 24px 24px;
}
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; margin: 0 0 8px; letter-spacing: 0.2px; }
a { color: inherit; }
button { font-family: inherit; cursor: pointer; }

/* ---------- Signature element: segmented status strip ----------
   An oscilloscope/LED-bank motif used on auth screens and as the
   dashboard hero - a row of pass/fail "signal" segments. */
.status-strip { display: flex; gap: 4px; height: 6px; margin: 20px 0 28px; }
.status-strip__seg { flex: 1; border-radius: 2px; opacity: 0.85; }
.status-strip__seg--pass { background: var(--pass); box-shadow: 0 0 8px rgba(61,220,132,0.5); }
.status-strip__seg--fail { background: var(--fail); box-shadow: 0 0 8px rgba(229,72,77,0.5); }

/* ---------- Auth pages ---------- */
.auth-body {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 24px;
}
.auth-card {
  width: 100%; max-width: 400px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
}
.auth-card__brand { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; margin-bottom: 4px; }
.auth-card__brand img { height: 30px; }
.auth-card__brand h1 { font-size: 17px; color: var(--text-muted); font-weight: 600; }
.auth-form { display: flex; flex-direction: column; gap: 6px; }
.auth-form label { font-size: 12px; color: var(--text-muted); margin-top: 10px; text-transform: uppercase; letter-spacing: 0.5px; }
.auth-form input {
  background: var(--panel-alt); border: 1px solid var(--border); color: var(--text);
  border-radius: var(--radius); padding: 10px 12px; font-size: 14px; font-family: var(--font-mono);
}
.auth-form input:focus, input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--brand-primary); outline-offset: 1px; border-color: var(--brand-primary);
}
.auth-error { color: var(--fail); font-size: 13px; min-height: 18px; margin: 8px 0 0; }
.auth-help { color: var(--text-muted); font-size: 13px; margin: 4px 0 12px; }
.qr-holder { display: flex; justify-content: center; margin: 8px 0; min-height: 180px; align-items: center; }
.secret-key { font-family: var(--font-mono); text-align: center; background: var(--panel-alt); border: 1px dashed var(--border); border-radius: var(--radius); padding: 10px; letter-spacing: 2px; word-break: break-all; }
.recovery-codes { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.recovery-list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; list-style: none; padding: 0; margin: 16px 0; font-family: var(--font-mono); }
.recovery-list li { background: var(--panel-alt); border: 1px solid var(--border); border-radius: 4px; padding: 8px; text-align: center; }

/* ---------- Buttons ---------- */
.btn {
  border: 1px solid var(--brand-primary); background: var(--brand-primary); color: #fff;
  border-radius: var(--radius); padding: 10px 16px; font-size: 13px; font-weight: 600; transition: filter 0.15s;
}
.btn:hover { filter: brightness(1.1); }
.btn:focus-visible { outline: 2px solid var(--brand-accent); outline-offset: 2px; }
.btn--block { width: 100%; margin-top: 16px; }
.btn--ghost { background: transparent; color: var(--text-muted); border-color: var(--border); }
.btn--ghost:hover { color: var(--text); border-color: var(--text-muted); }
.btn--small { padding: 6px 10px; font-size: 12px; }
.btn--danger { background: var(--fail); border-color: var(--fail); }

/* ---------- App shell ---------- */
.app-shell { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--panel); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; padding: 20px 16px;
}
.sidebar__brand { display: flex; align-items: center; gap: 10px; padding: 4px 6px 24px; }
.sidebar__logo { max-height: 28px; max-width: 100%; }
.sidebar__org { font-family: var(--font-display); font-size: 13px; color: var(--text-muted); }
.sidebar__nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.nav-link {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: var(--radius);
  text-decoration: none; color: var(--text-muted); font-weight: 600; font-size: 13px;
}
.nav-link:hover { background: var(--panel-alt); color: var(--text); }
.nav-link.is-active { background: var(--panel-alt); color: var(--text); box-shadow: inset 3px 0 0 var(--brand-accent); }
.nav-icon { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.sidebar__footer { border-top: 1px solid var(--border); padding-top: 14px; display: flex; flex-direction: column; gap: 10px; }
.sidebar__user { display: flex; flex-direction: column; gap: 4px; }
.sidebar__username { font-size: 13px; font-weight: 600; }
.role-pill { align-self: flex-start; font-size: 10px; text-transform: uppercase; letter-spacing: 0.5px; padding: 2px 8px; border-radius: 20px; background: var(--panel-alt); color: var(--text-muted); border: 1px solid var(--border); }
.role-pill--system_admin { color: var(--warn); border-color: var(--warn); }
.role-pill--admin { color: var(--brand-primary); border-color: var(--brand-primary); }

.main { display: flex; flex-direction: column; min-width: 0; }
.topbar { display: flex; align-items: center; justify-content: space-between; padding: 18px 28px; border-bottom: 1px solid var(--border); }
.topbar__title { font-family: var(--font-display); font-size: 19px; }
.topbar__conlay-logo { height: 22px; opacity: 0.85; }
.content { padding: 24px 28px 60px; overflow-y: auto; }

/* ---------- Cards / stat grid ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 22px; }
.stat-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; position: relative; overflow: hidden; }
.stat-card__label { color: var(--text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.stat-card__value { font-family: var(--font-mono); font-size: 30px; font-weight: 700; margin-top: 6px; }
.stat-card--pass .stat-card__value { color: var(--pass); }
.stat-card--fail .stat-card__value { color: var(--fail); }
.stat-card--rate .stat-card__value { color: var(--brand-primary); }

.trend-chart { display: flex; align-items: flex-end; gap: 3px; height: 70px; }
.trend-bar { display: flex; flex-direction: column-reverse; width: 100%; min-width: 4px; }
.trend-bar__pass { background: var(--pass); border-radius: 1px 1px 0 0; }
.trend-bar__fail { background: var(--fail); border-radius: 1px 1px 0 0; margin-bottom: 1px; }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 20px; }
.panel__title { font-family: var(--font-display); font-size: 15px; margin-bottom: 14px; display: flex; align-items: center; justify-content: space-between; }

/* ---------- Tables ---------- */
table.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th { text-align: left; color: var(--text-muted); font-weight: 600; text-transform: uppercase; font-size: 11px; letter-spacing: 0.4px; padding: 8px 10px; border-bottom: 1px solid var(--border); }
.data-table td { padding: 9px 10px; border-bottom: 1px solid var(--border); font-family: var(--font-mono); }
.data-table tr:hover td { background: var(--panel-alt); }
.badge { display: inline-block; padding: 2px 8px; border-radius: 12px; font-size: 11px; font-weight: 700; font-family: var(--font-body); }
.badge--fail { background: rgba(229,72,77,0.15); color: var(--fail); }
.badge--pass { background: rgba(61,220,132,0.15); color: var(--pass); }

/* ---------- Forms (settings / reports) ---------- */
.form-row { display: flex; gap: 14px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 18px; }
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 11px; text-transform: uppercase; color: var(--text-muted); letter-spacing: 0.5px; }
.field input, .field select {
  background: var(--panel-alt); border: 1px solid var(--border); color: var(--text);
  border-radius: var(--radius); padding: 8px 10px; font-size: 13px; font-family: var(--font-mono);
}
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 20px; }
.tab { padding: 10px 16px; color: var(--text-muted); font-weight: 600; font-size: 13px; border-bottom: 2px solid transparent; }
.tab.is-active { color: var(--text); border-color: var(--brand-accent); }

.color-swatch { width: 20px; height: 20px; border-radius: 4px; border: 1px solid var(--border); display: inline-block; vertical-align: middle; }
.empty-state { color: var(--text-faint); text-align: center; padding: 30px; font-size: 13px; }

@media (max-width: 860px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 50; inset: 0 30% 0 0; transform: translateX(-100%); transition: transform 0.2s; }
  .sidebar.is-open { transform: translateX(0); }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}