/* ════════════════════════════════════════════════════════════════
   BASE — reset, document, controls, accessibility
   ════════════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; overflow: hidden; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
}
button, input, select, textarea { font-family: var(--font-sans); -webkit-tap-highlight-color: transparent; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 8px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: var(--text4); background-clip: content-box; }
* { scrollbar-width: thin; scrollbar-color: var(--border2) transparent; }

/* ── Selection ── */
::selection { background: rgba(10,108,255,0.22); }

/* ── Focus: visible, accessible (replaces the old outline:none) ── */
:focus { outline: none; }
button:focus-visible,
a:focus-visible,
[role="button"]:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: var(--r-xs);
}
input:focus-visible, select:focus-visible, textarea:focus-visible { outline: none; }
input:focus, select:focus, textarea:focus {
  border-color: var(--accent-hover) !important;
  box-shadow: 0 0 0 3.5px hsl(var(--mood-h) var(--mood-s) 52% / 0.18);
}
select option { background: var(--surface2); color: var(--text); }

/* ── Opaque chrome (no blur, instant theme switch) ── */
.kn-header, .kn-nav, .kn-footer {
  background: var(--glass-bg) !important;
}

/* ── Button helpers ── */
.btn-ghost:hover { background: var(--surface2) !important; color: var(--text) !important; }
.nav-tab:hover   { color: var(--text2) !important; }

/* ── Hide-on-desktop helper (per-row meta for compact layouts) ── */
.kn-row-meta { display: none; }

/* ── Strips that scroll on touch ── */
.kn-metrics, .kn-nav { scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.kn-metrics::-webkit-scrollbar, .kn-nav::-webkit-scrollbar { display: none; }

/* ── Native-style mobile chrome (off on desktop) ── */
.kn-bottom-nav { display: none; }
.kn-fab        { display: none; }

/* ── Tabular numerals everywhere numbers live ── */
.kn-num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }