/* Kenteken Intelligence — app.css
 * Component utilities built on Primer CSS variables.
 */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg-muted);
  color: var(--color-fg-default);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-accent-fg); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Shell */
.ki-shell { max-width: 1020px; margin: 0 auto; padding: 0 24px 64px; }

/* Nav */
.ki-nav {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border-default);
}
.ki-nav-inner {
  max-width: 1020px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; height: 56px;
}
.ki-brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; color: var(--color-fg-default); text-decoration: none; }
.ki-logo { width: 28px; height: 28px; border-radius: var(--radius-full); background: var(--color-primary); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 13px; }
.ki-nav-link { font-size: 13px; color: var(--color-fg-muted); padding: 4px 8px; border-radius: var(--radius-medium); }
.ki-nav-link:hover { background: var(--color-bg-muted); color: var(--color-fg-default); text-decoration: none; }

/* Page header */
.ki-page-header { padding: 32px 0 24px; }
.ki-page-title { font-size: 24px; font-weight: 700; margin: 0 0 4px; letter-spacing: -0.01em; }
.ki-page-sub { font-size: 14px; color: var(--color-fg-muted); margin: 0; }

/* Card */
.ki-card {
  background: var(--color-bg-default);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-large);
  padding: 20px 24px;
  box-shadow: var(--shadow-resting-small);
}
.ki-card + .ki-card { margin-top: 16px; }
.ki-card-title { font-size: 14px; font-weight: 600; margin: 0 0 14px; color: var(--color-fg-default); }

/* Plate input */
.ki-plate-input {
  font-size: 22px; font-weight: 700; letter-spacing: 3px; text-align: center;
  text-transform: uppercase;
  background: #ffd200; color: #1c2024;
  border: 2px solid #1c2024; border-radius: var(--radius-medium);
  padding: 12px 16px; width: 100%;
  font-family: var(--font-mono);
}
.ki-plate-input:focus { outline: 2px solid var(--color-accent-fg); outline-offset: 2px; }
.ki-plate-input::placeholder { color: #9a8a00; }

/* Buttons */
.ki-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: var(--radius-medium);
  font-size: 14px; font-weight: 600; font-family: inherit;
  border: 1px solid transparent; cursor: pointer; transition: filter 0.15s;
}
.ki-btn-primary { background: var(--color-primary); color: #fff; }
.ki-btn-primary:hover { filter: brightness(0.92); }
.ki-btn-default { background: var(--color-bg-inset); color: var(--color-fg-default); border-color: var(--color-border-default); }
.ki-btn-default:hover { background: var(--color-bg-muted); }

/* Risk chips */
.ki-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.ki-chip {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: var(--radius-full);
  font-size: 12px; font-weight: 600;
  border: 1px solid transparent;
}
.ki-chip-ok  { background: var(--color-success-muted); color: var(--color-success-fg); border-color: var(--color-success-border); }
.ki-chip-warn{ background: var(--color-attention-muted); color: var(--color-attention-fg); border-color: var(--color-attention-border); }
.ki-chip-bad { background: var(--color-danger-muted); color: var(--color-danger-fg); border-color: var(--color-danger-border); }
.ki-chip-info{ background: var(--color-accent-muted); color: var(--color-accent-fg); border-color: var(--color-accent-border); }
.ki-chip-neutral { background: var(--color-bg-inset); color: var(--color-fg-muted); border-color: var(--color-border-default); }

/* Spec grid */
.ki-spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 32px; }
@media (max-width: 600px) { .ki-spec-grid { grid-template-columns: 1fr; } }
.ki-spec-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--color-bg-inset); font-size: 13px; }
.ki-spec-row:last-child { border-bottom: none; }
.ki-spec-key { color: var(--color-fg-muted); }
.ki-spec-val { font-weight: 600; text-align: right; font-family: var(--font-mono); font-size: 12px; }

/* Trace panel */
.ki-trace { margin-top: 12px; }
.ki-trace-step {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 0; border-bottom: 1px solid var(--color-bg-inset);
  font-size: 12px;
}
.ki-trace-step:last-child { border-bottom: none; }
.ki-trace-num { min-width: 26px; height: 26px; border-radius: var(--radius-full); background: var(--color-bg-inset); border: 1px solid var(--color-border-default); display: grid; place-items: center; font-weight: 700; font-size: 11px; color: var(--color-fg-muted); flex-shrink: 0; margin-top: 1px; }
.ki-trace-node { font-weight: 600; font-size: 13px; color: var(--color-fg-default); line-height: 1.4; }
.ki-trace-cond { color: var(--color-fg-muted); margin-top: 3px; line-height: 1.55; font-size: 12px; }
.ki-trace-matched { font-family: var(--font-mono); color: var(--color-accent-fg); }
.ki-trace-type-PREDICATE .ki-trace-num { background: var(--color-accent-muted); color: var(--color-accent-fg); border-color: var(--color-accent-border); }
.ki-trace-type-TRANSITION .ki-trace-num { background: var(--color-attention-muted); color: var(--color-attention-fg); border-color: var(--color-attention-border); }
.ki-trace-type-OUTCOME .ki-trace-num { background: var(--color-success-muted); color: var(--color-success-fg); border-color: var(--color-success-border); }

/* Hero */
.ki-hero { padding: 28px 0 20px; }
.ki-hero-make { font-size: 28px; font-weight: 800; letter-spacing: -0.02em; margin: 0; }
.ki-hero-meta { font-size: 14px; color: var(--color-fg-muted); margin: 4px 0 0; }
.ki-plate-badge { display: inline-block; background: #ffd200; color: #1c2024; font-family: var(--font-mono); font-weight: 700; letter-spacing: 2px; padding: 3px 10px; border-radius: var(--radius-small); font-size: 14px; border: 1.5px solid #1c2024; margin-right: 8px; }

/* Locked section */
.ki-locked { text-align: center; padding: 32px; color: var(--color-fg-muted); border: 1px dashed var(--color-border-default); border-radius: var(--radius-large); margin-top: 16px; }

/* Alert */
.ki-alert { padding: 12px 16px; border-radius: var(--radius-medium); border: 1px solid; font-size: 13px; margin-bottom: 16px; }
.ki-alert-danger { background: var(--color-danger-muted); color: var(--color-danger-fg); border-color: var(--color-danger-border); }
.ki-alert-info   { background: var(--color-accent-muted); color: var(--color-accent-fg); border-color: var(--color-accent-border); }

/* Provenance footer */
.ki-provenance { font-size: 11px; color: var(--color-fg-muted); margin-top: 10px; font-family: var(--font-mono); }