/* ============================================================
   CAN Sniffer — Design System (light)
   A clean, bright, modern UI for a CAN diagnostics workbench.
   ============================================================ */

:root {
  /* Surfaces */
  --bg: #f4f6fa;
  --bg-subtle: #eef1f6;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --surface-3: #f1f5f9;
  --surface-inset: #f8fafc;

  /* Text */
  --text: #0f172a;
  --text-2: #334155;
  --muted: #64748b;
  --muted-2: #94a3b8;

  /* Borders */
  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  /* Brand + semantic */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-soft: #eff4ff;
  --primary-softer: #f5f8ff;
  --primary-border: #c7d8fe;

  --accent: #0891b2;
  --accent-soft: #ecfeff;

  --success: #16a34a;
  --success-soft: #ecfdf3;
  --success-border: #bbf7d0;

  --warning: #d97706;
  --warning-soft: #fffbeb;
  --warning-border: #fde68a;

  --danger: #dc2626;
  --danger-soft: #fef2f2;
  --danger-border: #fecaca;

  --info: #0ea5e9;
  --info-soft: #f0f9ff;

  /* Typography */
  --font-ui: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Roboto Mono", Consolas, monospace;

  /* Geometry */
  --sidebar-w: 256px;
  --topbar-h: 60px;
  --radius-xs: 6px;
  --radius-sm: 9px;
  --radius: 13px;
  --radius-lg: 18px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08), 0 2px 6px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.16);
  --ring: 0 0 0 3px rgba(37, 99, 235, 0.18);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  --transition: 0.16s ease;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

[x-cloak] { display: none !important; }

h1, h2, h3, h4 {
  font-weight: 650;
  line-height: 1.2;
  margin: 0 0 var(--space-sm);
  letter-spacing: -0.018em;
  color: var(--text);
}
h1 { font-size: 1.55rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1.02rem; }
h4 { font-size: 0.9rem; }

p { margin: 0 0 var(--space-md); }
p:last-child { margin-bottom: 0; }

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-hover); }

code, .mono, kbd { font-family: var(--font-mono); }
code {
  font-size: 0.85em;
  background: var(--surface-3);
  border: 1px solid var(--border);
  padding: 0.08em 0.4em;
  border-radius: var(--radius-xs);
  color: var(--text-2);
}

small, .help { font-size: 0.82rem; color: var(--muted); }
.help.warn { color: var(--warning); }
.muted { color: var(--muted); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }

:focus-visible { outline: none; box-shadow: var(--ring); }

/* Spacing helpers */
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

/* ============================================================
   App shell
   ============================================================ */

.app-shell { display: flex; min-height: 100vh; }

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(2px);
  z-index: 90;
}
.sidebar-backdrop.open { display: block; }

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-right: 1px solid var(--border);
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 100;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: var(--space-lg) var(--space-lg) var(--space-md);
  color: var(--text);
}
.sidebar-brand:hover { color: var(--text); }
.brand-icon { width: 34px; height: 34px; flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-weight: 700; font-size: 1.02rem; letter-spacing: -0.02em; }
.brand-tagline { font-size: 0.7rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.12em; }

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-sm) var(--space-md) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.sidebar-nav-group { display: flex; flex-direction: column; gap: 2px; }
.sidebar-nav-label {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted-2);
  padding: 0 var(--space-sm);
  margin-bottom: 4px;
}
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.55rem var(--space-sm);
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-weight: 500;
  font-size: 0.9rem;
  transition: background var(--transition), color var(--transition);
}
.sidebar-link svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--muted); transition: color var(--transition); }
.sidebar-link:hover { background: var(--surface-3); color: var(--text); }
.sidebar-link:hover svg { color: var(--text-2); }
.sidebar-link.active { background: var(--primary-soft); color: var(--primary-hover); font-weight: 600; }
.sidebar-link.active svg { color: var(--primary); }

.sidebar-footer { padding: var(--space-md); border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: var(--space-md); }
.sidebar-user { display: flex; flex-direction: column; gap: var(--space-sm); }
.user-name { font-size: 0.85rem; font-weight: 600; color: var(--text-2); padding: 0 var(--space-xs); }
.settings-link svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--muted); }
.settings-link.active svg { color: var(--primary); }

/* Mode switcher */
.mode-switch {
  display: flex;
  gap: 4px;
  padding: var(--space-sm) var(--space-md) 0;
}
.mode-switch-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 0.6rem 0.35rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 600;
  text-align: center;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.mode-switch-btn svg { width: 20px; height: 20px; color: var(--muted); transition: color var(--transition); }
.mode-switch-btn:hover { background: var(--surface-3); color: var(--text-2); }
.mode-switch-btn:hover svg { color: var(--text-2); }
.mode-switch-btn.active {
  background: var(--primary-soft);
  color: var(--primary-hover);
  border-color: var(--primary-border, var(--primary-soft));
}
.mode-switch-btn.active svg { color: var(--primary); }

/* Topbar active-device selector */
.device-selector { display: inline-flex; align-items: center; gap: 0.45rem; }
.device-selector-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--muted-2); flex-shrink: 0;
}
.device-selector-dot.online { background: var(--success); box-shadow: 0 0 0 3px var(--success-soft); }
.device-selector select {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.3rem 0.5rem;
  font-size: 0.85rem;
  background: var(--surface);
  color: var(--text-2);
  max-width: 200px;
}

/* Confirmed set-mode popover */
.mode-action { position: relative; }
.confirm-pop {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 60;
  width: 260px;
  padding: var(--space-md);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg, 0 10px 30px rgba(0,0,0,0.15));
}
.confirm-pop p { font-size: 0.85rem; color: var(--text-2); margin: 0 0 var(--space-sm); }
.confirm-pop-actions { display: flex; justify-content: flex-end; gap: var(--space-sm); }

/* Mode launchpad (home) */
.mode-launchpad { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-md); }
.mode-launch-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.mode-launch-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-2px); }
.mode-launch-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--primary-soft); color: var(--primary);
}
.mode-launch-icon svg { width: 22px; height: 22px; }
.mode-launch-card strong { display: block; color: var(--text); font-size: 1rem; }
.mode-launch-card .help { margin: 2px 0 0; }

.main-content { flex: 1; min-width: 0; display: flex; flex-direction: column; }

/* Topbar */
.topbar {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 0 var(--space-xl);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 80;
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.4rem;
  color: var(--text-2);
  cursor: pointer;
}
.nav-toggle svg { width: 20px; height: 20px; display: block; }
.topbar-title { font-weight: 650; font-size: 1.02rem; }
.topbar-spacer { flex: 1; }
.topbar-desktop { display: flex; align-items: center; min-width: 0; }
.mobile-brand { display: none; font-weight: 700; color: var(--text); }

/* Topbar device pill */
.device-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  background: var(--surface-3);
  border: 1px solid var(--border);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-2);
}
.device-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted-2); }
.device-pill.online .dot { background: var(--success); box-shadow: 0 0 0 3px var(--success-soft); }

.container {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: var(--space-xl);
  flex: 1;
}

/* ============================================================
   Breadcrumbs
   ============================================================ */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.breadcrumbs a { color: var(--muted); }
.breadcrumbs a:hover { color: var(--primary); }
.breadcrumbs .sep { color: var(--muted-2); }
.breadcrumbs .current { color: var(--text-2); font-weight: 600; }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
  text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn svg { width: 16px; height: 16px; }
.btn:disabled, .btn[disabled] { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary { background: var(--primary); color: #fff; box-shadow: var(--shadow-xs); }
.btn-primary:hover { background: var(--primary-hover); color: #fff; }

.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--surface-3); color: var(--text); border-color: var(--border-strong); }

.btn-ghost { background: transparent; color: var(--text-2); }
.btn-ghost:hover { background: var(--surface-3); color: var(--text); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; color: #fff; }

.btn-danger-soft { background: var(--danger-soft); color: var(--danger); border-color: var(--danger-border); }
.btn-danger-soft:hover { background: #fde4e4; color: var(--danger); }

/* Prominent “capture running” strip — Stop must be obvious at a glance */
.capture-active-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-lg);
  background: var(--danger-soft);
  border: 1px solid var(--danger-border);
  border-radius: var(--radius-md);
}
.capture-active-banner .capture-active-title {
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--danger);
}

.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.8rem; border-radius: var(--radius-xs); }
.btn-lg { padding: 0.7rem 1.4rem; font-size: 0.95rem; }
.btn-block { width: 100%; }
.btn-icon { padding: 0.45rem; }

/* ============================================================
   Cards / Panels
   ============================================================ */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-lg);
}
.panel:last-child { margin-bottom: 0; }
.panel-flush { padding: 0; overflow: hidden; }

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}
.panel-header h1, .panel-header h2, .panel-header h3 { margin: 0; }
.panel-header .help { margin-top: 4px; }
.panel-header .card-actions { margin-top: 0; align-items: center; }
.panel-header .inline-form { align-items: center; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}
.card-actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; margin-top: var(--space-md); }

.section-divider {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

/* Hero */
.hero { margin-bottom: var(--space-lg); }
.hero h1 { font-size: 1.9rem; }
.hero .lead { font-size: 1.05rem; color: var(--muted); max-width: 60ch; }

/* ============================================================
   Grids
   ============================================================ */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}
.stat-label { font-size: 0.78rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; }
.stat-value { font-size: 2rem; font-weight: 700; letter-spacing: -0.03em; margin-top: 4px; }
.stat-value-sub { font-size: 1rem; color: var(--muted); font-weight: 500; }

.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-md);
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

.device-card, .session-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
  position: relative;
}
.device-card:hover, .session-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.device-card h3, .session-card h3 { margin-bottom: var(--space-sm); }
.device-status {
  position: absolute; top: var(--space-lg); right: var(--space-lg);
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--muted-2);
}
.device-status.online { background: var(--success); box-shadow: 0 0 0 4px var(--success-soft); }
.device-chips { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-bottom: var(--space-md); }
.device-card-warn { margin-bottom: var(--space-sm); }

/* Quick link cards */
.quick-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.quick-card {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: var(--space-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  color: var(--text);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.quick-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--primary-border); color: var(--text); }
.quick-card h3 { margin: 0; }
.quick-card-icon {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: var(--radius-sm);
  background: var(--primary-soft); color: var(--primary);
  margin-bottom: var(--space-xs);
}
.quick-card-icon svg { width: 22px; height: 22px; }

/* ============================================================
   Badges & chips
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1.5;
  border: 1px solid transparent;
}
.badge-muted { background: var(--surface-3); color: var(--muted); border-color: var(--border); }
.badge-success { background: var(--success-soft); color: var(--success); border-color: var(--success-border); }
.badge-warning { background: var(--warning-soft); color: var(--warning); border-color: var(--warning-border); }
.badge-danger { background: var(--danger-soft); color: var(--danger); border-color: var(--danger-border); }
.badge-info { background: var(--primary-soft); color: var(--primary-hover); border-color: var(--primary-border); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-pill);
  font-size: 0.76rem;
  font-weight: 500;
  background: var(--surface-3);
  color: var(--text-2);
  border: 1px solid var(--border);
}
.chip-warn { background: var(--warning-soft); color: var(--warning); border-color: var(--warning-border); }
.chip-accent { background: var(--primary-soft); color: var(--primary-hover); border-color: var(--primary-border); }

/* ============================================================
   Forms
   ============================================================ */
input[type="text"], input[type="password"], input[type="number"],
input[type="email"], input[type="search"], input[type="file"],
select, textarea {
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.75rem;
  width: 100%;
  transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: var(--ring); }
input::placeholder, textarea::placeholder { color: var(--muted-2); }
input:disabled, select:disabled, textarea:disabled { background: var(--surface-3); color: var(--muted); cursor: not-allowed; }
textarea { resize: vertical; min-height: 70px; }
select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.65rem center;
  padding-right: 2rem;
}

.form-group { display: flex; flex-direction: column; gap: 0.3rem; margin-bottom: var(--space-md); font-size: 0.85rem; font-weight: 600; color: var(--text-2); }
.form-group input, .form-group select, .form-group textarea { font-weight: 400; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: var(--space-md); }

.inline-form { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-sm); }
.inline-form input, .inline-form select { width: auto; min-width: 140px; }

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-2);
  cursor: pointer;
}
.checkbox-label input[type="checkbox"] { width: auto; accent-color: var(--primary); width: 16px; height: 16px; }

.radio-group { display: flex; flex-direction: column; gap: var(--space-sm); }
.radio-label { display: flex; align-items: center; gap: 0.5rem; font-size: 0.88rem; cursor: pointer; }
.radio-label input { width: auto; accent-color: var(--primary); }

/* Auth */
.auth-layout { display: grid; place-items: center; min-height: 100vh; padding: var(--space-lg); background: linear-gradient(160deg, var(--bg-subtle), var(--surface)); }
.auth-card {
  width: 100%; max-width: 400px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl) var(--space-xl);
  box-shadow: var(--shadow-lg);
}
.auth-brand { display: flex; align-items: center; gap: 0.7rem; justify-content: center; margin-bottom: var(--space-xl); }
.auth-brand .brand-icon { width: 40px; height: 40px; }

/* ============================================================
   Tables
   ============================================================ */
.table-scroll { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.data-table thead th {
  text-align: left;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  font-weight: 700;
  padding: 0.65rem 0.85rem;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 1;
}
.data-table tbody td { padding: 0.6rem 0.85rem; border-bottom: 1px solid var(--border); color: var(--text-2); }
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr.clickable { cursor: pointer; transition: background var(--transition); }
.data-table tbody tr.clickable:hover { background: var(--primary-softer); }
.data-table tbody tr.selected { background: var(--primary-soft); }
.data-table tbody tr.selected td { color: var(--text); }
.data-table .mono { font-family: var(--font-mono); font-size: 0.82rem; }
.data-table tr.hunt-match td { background: var(--warning-soft); }
.data-table tr.hunt-match.selected td { background: var(--warning-border); }
.data-table tr.recommended-row td { background: var(--success-soft); }
.row-actions { text-align: right; white-space: nowrap; }

/* ============================================================
   Flash / toast
   ============================================================ */
.flash-messages { display: flex; flex-direction: column; gap: var(--space-sm); margin-bottom: var(--space-lg); }
.flash {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  font-size: 0.88rem;
  color: var(--text-2);
}
.flash-success { background: var(--success-soft); border-color: var(--success-border); color: #166534; }
.flash-error, .flash-danger { background: var(--danger-soft); border-color: var(--danger-border); color: #991b1b; }
.flash-warning { background: var(--warning-soft); border-color: var(--warning-border); color: #92400e; }
.flash-info { background: var(--primary-soft); border-color: var(--primary-border); color: var(--primary-hover); }
.flash-dismiss { background: none; border: none; font-size: 1.2rem; line-height: 1; color: inherit; opacity: 0.6; cursor: pointer; padding: 0 0.25rem; }
.flash-dismiss:hover { opacity: 1; }

/* ============================================================
   Modal
   ============================================================ */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(3px);
  display: grid; place-items: center;
  z-index: 200;
  padding: var(--space-lg);
}
.modal {
  width: 100%; max-width: 460px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-lg);
  max-height: 90vh; overflow-y: auto;
}
.modal-lg { max-width: 620px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-md); }
.modal-header h3 { margin: 0; }
.modal-close { background: none; border: none; font-size: 1.5rem; line-height: 1; color: var(--muted); cursor: pointer; }
.modal-close:hover { color: var(--text); }

/* ============================================================
   Tabs
   ============================================================ */
.tabs {
  display: flex;
  gap: 2px;
  background: var(--surface-3);
  padding: 3px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
}
.tab {
  flex: 1;
  white-space: nowrap;
  padding: 0.45rem 0.85rem;
  border: none;
  background: transparent;
  border-radius: var(--radius-xs);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
}
.tab:hover { color: var(--text-2); }
.tab.active { background: var(--surface); color: var(--primary-hover); box-shadow: var(--shadow-xs); }
.tab .tab-count { font-size: 0.7rem; background: var(--surface-3); padding: 0 0.35rem; border-radius: var(--radius-pill); color: var(--muted); }
.tab.active .tab-count { background: var(--primary-soft); color: var(--primary); }

/* Collapsible */
.collapsible { border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: var(--space-sm); overflow: hidden; }
.collapsible-head {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-sm);
  width: 100%; padding: 0.7rem 0.9rem;
  background: var(--surface-2); border: none; cursor: pointer;
  font-family: inherit; font-size: 0.9rem; font-weight: 600; color: var(--text);
}
.collapsible-head:hover { background: var(--surface-3); }
.collapsible-head .chev { transition: transform var(--transition); color: var(--muted); }
.collapsible.open .collapsible-head .chev { transform: rotate(90deg); }
.collapsible-body { padding: var(--space-md); border-top: 1px solid var(--border); }

/* ============================================================
   Empty states
   ============================================================ */
.empty-state {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: var(--space-sm);
  padding: var(--space-2xl) var(--space-lg);
  color: var(--muted);
  grid-column: 1 / -1;
}
.empty-state-icon {
  width: 56px; height: 56px;
  display: grid; place-items: center;
  border-radius: var(--radius);
  background: var(--surface-3); color: var(--muted-2);
}
.empty-state-icon svg { width: 28px; height: 28px; }
.empty-state-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-sm); margin-top: var(--space-sm); }

/* ============================================================
   Workflow stepper
   ============================================================ */
.workflow-banner {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-lg);
}
.workflow-steps { display: flex; align-items: center; gap: var(--space-sm); }
.workflow-step {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-pill);
  color: var(--muted);
  font-weight: 600; font-size: 0.88rem;
  transition: background var(--transition), color var(--transition);
}
.workflow-step:hover { background: var(--surface-3); color: var(--text-2); }
.workflow-step-num {
  display: grid; place-items: center;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--surface-3); color: var(--muted);
  font-size: 0.78rem; font-weight: 700;
  border: 1px solid var(--border);
}
.workflow-step.active { color: var(--primary-hover); }
.workflow-step.active .workflow-step-num { background: var(--primary); color: #fff; border-color: var(--primary); }
.workflow-step.done { color: var(--success); }
.workflow-step.done .workflow-step-num { background: var(--success-soft); color: var(--success); border-color: var(--success-border); }
.workflow-connector { flex: 1; height: 2px; background: var(--border); border-radius: 2px; max-width: 60px; }
.workflow-connector.done { background: var(--success-border); }
.workflow-intro-help { margin: var(--space-sm) 0 0; font-size: 0.85rem; color: var(--muted); }

/* ============================================================
   Next-step rail (guided)
   ============================================================ */
.next-step {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius);
  background: var(--primary-soft);
  border: 1px solid var(--primary-border);
  margin-bottom: var(--space-md);
}
.next-step.is-done { background: var(--success-soft); border-color: var(--success-border); }
.next-step.is-wait { background: var(--surface-2); border-color: var(--border); }
.next-step-icon {
  width: 38px; height: 38px; flex-shrink: 0;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--primary); color: #fff;
}
.next-step.is-done .next-step-icon { background: var(--success); }
.next-step.is-wait .next-step-icon { background: var(--muted-2); }
.next-step-icon svg { width: 20px; height: 20px; }
.next-step-body { flex: 1; min-width: 0; }
.next-step-eyebrow { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--primary); }
.next-step.is-done .next-step-eyebrow { color: var(--success); }
.next-step.is-wait .next-step-eyebrow { color: var(--muted); }
.next-step-title { font-weight: 650; font-size: 1rem; color: var(--text); margin: 2px 0; }
.next-step-desc { font-size: 0.85rem; color: var(--muted); }
.next-step-actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; margin-top: var(--space-sm); }

/* ============================================================
   Status strip / device status card
   ============================================================ */
.status-strip {
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-lg);
}
.status-strip .status-item { display: flex; align-items: center; gap: 0.45rem; font-size: 0.85rem; color: var(--text-2); }
.status-strip .status-item .label { color: var(--muted); }
.status-strip .spacer { flex: 1; }

/* ============================================================
   Lists (sessions / references / marks / candidates)
   ============================================================ */
.stack-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-sm); }
.stack-list > li {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-sm);
  padding: 0.6rem 0.75rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}
.stack-list > li.active { border-color: var(--primary-border); background: var(--primary-softer); }
.stack-list .muted-row { background: transparent; border: none; color: var(--muted); justify-content: flex-start; padding: 0.4rem 0; }

.session-item { flex-wrap: wrap; }
.session-item .item-main { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.session-item .item-actions { display: flex; gap: var(--space-xs); }

.candidate-item { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.candidate-item .mono { font-size: 0.8rem; }

/* ============================================================
   Discovery Lab
   ============================================================ */
.lab-toolbar {
  display: flex; align-items: center; gap: var(--space-md); flex-wrap: wrap;
  padding: var(--space-sm) var(--space-md);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  font-size: 0.85rem; color: var(--text-2);
}
.lab-toolbar .sep { color: var(--border-strong); }

.filters {
  display: grid;
  grid-template-columns: 1fr 160px 1fr;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.lab-grid { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(320px, 1fr); gap: var(--space-lg); align-items: start; }
.lab-main { min-width: 0; }
.lab-main .table-scroll { max-height: 62vh; overflow-y: auto; }
.lab-sidebar { position: sticky; top: calc(var(--topbar-h) + var(--space-md)); }
.lab-sidebar .tab-panel { margin-top: var(--space-md); }

/* Top IDs */
.top-ids-list { display: flex; flex-direction: column; gap: 2px; max-height: 320px; overflow-y: auto; }
.top-id-row {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; padding: 0.4rem 0.6rem;
  border: 1px solid transparent; border-radius: var(--radius-xs);
  background: var(--surface-2);
  font-family: inherit; cursor: pointer; font-size: 0.8rem; color: var(--text-2);
  transition: background var(--transition), border-color var(--transition);
}
.top-id-row:hover { background: var(--primary-softer); border-color: var(--primary-border); }
.top-id-row .mono { font-family: var(--font-mono); }

/* Heatmap */
#heatmap { display: flex; flex-direction: column; gap: 3px; font-family: var(--font-mono); font-size: 0.78rem; }
.heatmap-row { display: flex; align-items: center; gap: 0.4rem; }
.byte-cell {
  display: inline-block;
  padding: 0.15rem 0.3rem;
  border-radius: 4px;
  background: var(--surface-3);
  color: var(--text-2);
  min-width: 1.9em; text-align: center;
}
.byte-cell.changed { background: var(--warning-soft); color: var(--warning); font-weight: 700; }

/* Reference form list */
.reference-list, .marked-list, .candidate-list { list-style: none; margin: var(--space-sm) 0 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-xs); }
.reference-list li, .marked-list li, .candidate-list li {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-sm);
  padding: 0.45rem 0.6rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  font-size: 0.83rem;
}

/* Sync banner */
.sync-banner { border-color: var(--primary-border); background: var(--primary-softer); }

/* ============================================================
   Bit grid (mapper)
   ============================================================ */
.bit-grid { display: grid; grid-template-columns: repeat(8, 1fr); gap: 4px; margin: var(--space-sm) 0; max-width: 420px; }
.bit-cell {
  aspect-ratio: 1;
  display: grid; place-items: center;
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted);
  cursor: pointer; user-select: none;
  transition: background var(--transition), color var(--transition);
}
.bit-cell:hover { background: var(--primary-softer); }
.bit-cell.in-range { background: var(--primary-soft); color: var(--primary-hover); border-color: var(--primary-border); }
.bit-cell.selected { background: var(--primary); color: #fff; border-color: var(--primary); font-weight: 700; }

/* ============================================================
   Dashboard gauges
   ============================================================ */
.dashboard-statusbar { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-sm); margin-bottom: var(--space-md); }
.dashboard-statusbar-updated { margin-left: auto; font-size: 0.82rem; white-space: nowrap; }
.status-pill {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.3rem 0.7rem; border-radius: var(--radius-pill);
  font-size: 0.78rem; font-weight: 600;
  background: var(--surface-3); color: var(--muted); border: 1px solid var(--border);
}
.status-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted-2); }
.status-pill.status-live { background: var(--success-soft); color: var(--success); border-color: var(--success-border); }
.status-pill.status-live .dot { background: var(--success); }
.status-pill.status-stale { background: var(--warning-soft); color: var(--warning); border-color: var(--warning-border); }
.status-pill.status-stale .dot { background: var(--warning); }
.status-pill.status-error { background: var(--danger-soft); color: var(--danger); border-color: var(--danger-border); }
.status-pill.status-error .dot { background: var(--danger); }

.gauge-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: var(--space-md); }
.gauge-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; gap: var(--space-sm);
}
.gauge-header { display: flex; align-items: center; justify-content: space-between; gap: var(--space-sm); }
.gauge-title { font-size: 0.85rem; font-weight: 600; color: var(--text-2); }
.gauge-readout { display: flex; align-items: baseline; gap: 0.3rem; }
.gauge-value { font-size: 2rem; font-weight: 700; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.gauge-value.warn { color: var(--warning); }
.gauge-value.danger { color: var(--danger); }
.gauge-unit { font-size: 0.85rem; color: var(--muted); }
.gauge-arc { height: 6px; border-radius: var(--radius-pill); background: var(--surface-3); overflow: hidden; }
.gauge-arc-fill { height: 100%; width: 0%; background: var(--primary); border-radius: var(--radius-pill); transition: width var(--transition); }
.gauge-arc-fill.warn { background: var(--warning); }
.gauge-arc-fill.danger { background: var(--danger); }
.gauge-spark { height: 40px; }
.gauge-range { display: flex; justify-content: space-between; font-size: 0.7rem; color: var(--muted-2); }
.gauge-card h3 { margin: 0; font-size: 0.9rem; color: var(--text-2); }
.gauge-card canvas { max-height: 64px; margin-top: var(--space-xs); }
.gauge-card .gauge-value { font-size: 1.9rem; }

.ml-auto { margin-left: auto; }
.layout-widget-list { list-style: none; margin: var(--space-sm) 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-xs); }
.layout-widget-item { display: flex; align-items: center; gap: var(--space-sm); padding: 0.5rem 0.7rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 0.88rem; }
.layout-widget-item select { width: auto; }
.drag-handle { color: var(--muted-2); cursor: grab; }

/* ============================================================
   WiFi panel
   ============================================================ */
.wifi-conn {
  display: flex; align-items: center; gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface-2);
  margin-bottom: var(--space-md);
}
.wifi-conn.wifi-connection-live { border-color: var(--success-border); background: var(--success-soft); }
.wifi-conn.wifi-connection-offline { border-color: var(--border); background: var(--surface-3); }
.wifi-conn-icon { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; background: var(--surface); color: var(--muted); flex-shrink: 0; }
.wifi-connection-live .wifi-conn-icon { background: #fff; color: var(--success); }
.wifi-conn-icon svg { width: 22px; height: 22px; }
.wifi-conn-body { flex: 1; min-width: 0; }
.wifi-conn-ssid { font-weight: 650; font-size: 1.02rem; }
.wifi-conn-meta { display: flex; align-items: center; gap: 0.5rem; font-size: 0.8rem; color: var(--muted); margin-top: 2px; }
.wifi-conn-badges { display: flex; flex-direction: column; gap: 4px; align-items: flex-end; }

.wifi-bar { display: inline-block; width: 64px; height: 6px; border-radius: var(--radius-pill); background: var(--surface-3); overflow: hidden; }
.wifi-bar-fill { display: block; height: 100%; background: var(--muted-2); border-radius: var(--radius-pill); transition: width var(--transition); }
.wifi-signal-weak .wifi-bar-fill { background: var(--danger); }
.wifi-signal-medium .wifi-bar-fill { background: var(--warning); }
.wifi-signal-strong .wifi-bar-fill { background: var(--success); }

.wifi-pending {
  display: flex; align-items: center; gap: var(--space-sm); flex-wrap: wrap;
  padding: 0.7rem 1rem; border-radius: var(--radius-sm);
  background: var(--warning-soft); border: 1px solid var(--warning-border);
  color: #92400e; font-size: 0.85rem; margin-bottom: var(--space-md);
}

.wifi-body { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-lg); margin-top: var(--space-md); }
.wifi-col-head { margin-bottom: var(--space-sm); }
.wifi-net-list, .wifi-scan-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-sm); }
.wifi-net {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface-2); padding: 0.7rem 0.85rem;
}
.wifi-net.wifi-network-row-live, .wifi-scan-item-active { border-color: var(--success-border); background: var(--success-soft); }
.wifi-net-main { display: flex; align-items: center; gap: var(--space-sm); }
.wifi-net-priority {
  width: 26px; height: 26px; flex-shrink: 0; display: grid; place-items: center;
  border-radius: var(--radius-xs); background: var(--surface-3); color: var(--muted);
  font-size: 0.78rem; font-weight: 700;
}
.wifi-net-info { flex: 1; min-width: 0; }
.wifi-net-name { font-weight: 600; }
.wifi-net-actions { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.wifi-net-form { margin-top: var(--space-sm); padding-top: var(--space-sm); border-top: 1px solid var(--border); }
.wifi-delete-confirm { display: flex; align-items: center; gap: var(--space-sm); flex-wrap: wrap; }
.wifi-pass-wrap { position: relative; }
.wifi-pass-wrap input { padding-right: 2.4rem; }
.wifi-pass-toggle { position: absolute; right: 0.5rem; top: 50%; transform: translateY(-50%); background: none; border: none; color: var(--muted); cursor: pointer; padding: 0.2rem; }
.wifi-pass-toggle svg { width: 18px; height: 18px; display: block; }
.wifi-scan-item { display: flex; align-items: center; gap: var(--space-sm); border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface-2); padding: 0.6rem 0.75rem; }
.wifi-scan-item-info { flex: 1; min-width: 0; display: flex; align-items: center; gap: 0.4rem; flex-wrap: wrap; }
.wifi-scan-item-meta { display: flex; align-items: center; gap: 0.4rem; font-size: 0.78rem; color: var(--muted); }
.wifi-scan-loading, .wifi-scan-empty, .wifi-empty { display: flex; flex-direction: column; gap: var(--space-sm); align-items: flex-start; padding: var(--space-md) 0; }
.wifi-scan-loading { flex-direction: row; align-items: center; }
.chip-success { background: var(--success-soft); color: var(--success); border-color: var(--success-border); }
.chip-muted { background: var(--surface-3); color: var(--muted); }

.mode-buttons { display: flex; gap: var(--space-sm); flex-wrap: wrap; }
.mode-buttons form { display: inline; }

/* ============================================================
   Signals / mapper helpers
   ============================================================ */
.surface-inset { background: var(--surface-2); box-shadow: none; }
.mapper-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-lg); align-items: start; }
.mapper-grid .panel { margin-bottom: 0; }
.preview-list { list-style: none; margin: var(--space-sm) 0 0; padding: 0; display: flex; flex-direction: column; gap: 4px; font-size: 0.88rem; }
.preview-list li { padding: 0.4rem 0.6rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-xs); }
.field-error { color: var(--danger); font-size: 0.85rem; }
#preview-hex { font-family: var(--font-mono); }
#preview-chart { margin-top: var(--space-md); max-height: 160px; }
@media (max-width: 900px) { .mapper-grid { grid-template-columns: 1fr; } }

@media (max-width: 700px) { .wifi-body { grid-template-columns: 1fr; } }

/* ============================================================
   Utilities
   ============================================================ */
.quick-start-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-md); }
.quick-start-step {
  display: flex; gap: var(--space-md); align-items: flex-start;
  padding: var(--space-lg);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.quick-start-step:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--primary-border); color: var(--text); }
.quick-start-num {
  width: 32px; height: 32px; flex-shrink: 0;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--primary); color: #fff;
  font-weight: 700;
}
.quick-start-step strong { display: block; margin-bottom: 2px; }

.divider { height: 1px; background: var(--border); margin: var(--space-lg) 0; border: none; }

.tag-list { display: flex; flex-wrap: wrap; gap: var(--space-xs); }

.detail-list { display: grid; grid-template-columns: max-content 1fr; gap: 0.4rem var(--space-lg); font-size: 0.88rem; }
.detail-list dt { color: var(--muted); }
.detail-list dd { margin: 0; color: var(--text-2); font-weight: 500; }

.spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .lab-grid { grid-template-columns: 1fr; }
  .lab-sidebar { position: static; }
}

@media (max-width: 860px) {
  .sidebar {
    position: fixed; left: 0; top: 0;
    transform: translateX(-100%);
    transition: transform var(--transition);
    box-shadow: var(--shadow-lg);
  }
  .sidebar.open { transform: translateX(0); }
  .nav-toggle { display: inline-flex; }
  .mobile-brand { display: block; }
  .topbar-title { display: none; }
  .topbar-desktop { display: none; }
  .container { padding: var(--space-md); }
  .filters { grid-template-columns: 1fr; }
  .workflow-connector { max-width: 24px; }
  .workflow-step { padding: 0.4rem 0.5rem; font-size: 0.8rem; }
  .workflow-step-label { display: none; }
}

@media (max-width: 540px) {
  .inline-form { width: 100%; }
  .inline-form input, .inline-form select { width: 100%; min-width: 0; }
  .device-selector select { max-width: 130px; }
  .mode-switch-btn { font-size: 0.68rem; padding: 0.5rem 0.25rem; }
}

/* ============================================================
   Correlation results — verdict, confidence meter, charts
   ============================================================ */

.confidence-meter {
  position: relative;
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--surface-3);
  overflow: hidden;
  min-width: 90px;
  flex: 1 1 auto;
}
.confidence-meter-sm { height: 6px; min-width: 56px; max-width: 90px; }

.confidence-meter-fill {
  height: 100%;
  border-radius: var(--radius-pill);
  background: var(--muted-2);
  transition: width var(--transition);
}
.confidence-meter-fill.confidence-success { background: var(--success); }
.confidence-meter-fill.confidence-warn { background: var(--warning); }
.confidence-meter-fill.confidence-muted { background: var(--muted-2); }

.corr-summary {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  align-items: center;
  margin-bottom: var(--space-md);
}
.corr-stat {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-width: 180px;
}
.corr-stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  white-space: nowrap;
}
.corr-stat-value { font-weight: 600; color: var(--text); }

.corr-charts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}
.chart-box {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
}
.chart-title {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: var(--space-sm);
}
.chart-canvas-wrap { position: relative; height: 240px; }

.candidate-table tbody tr { cursor: pointer; }
.candidate-table tbody tr.candidate-selected {
  background: var(--primary-softer);
  box-shadow: inset 3px 0 0 var(--primary);
}

#how-to-read summary {
  cursor: pointer;
  font-size: 0.95rem;
}
#how-to-read[open] summary { margin-bottom: var(--space-xs); }

.candidate-eliminated { opacity: 0.5; }
.candidate-survivor { background: var(--success-soft); }