/* ═══════════════════════════════════════════════════════════
   PORTBILL — BASE
   Reset, typography scale, global focus/motion rules.
═══════════════════════════════════════════════════════════ */

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

/* The browser's own `hidden` attribute rule and an author class rule that
   sets `display` (e.g. .hbadge/.tab-btn { display: inline-flex }) have
   EQUAL CSS specificity — whichever comes later in source order wins. Every
   component file in this app is authored after this one, so without this
   override any `hidden`-attribute element that also carries a display-set
   class silently keeps rendering (confirmed on #syncBadge: hidden=true but
   computed display:flex). This keeps `hidden` authoritative everywhere. */
[hidden] { display: none !important; }

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}
@media (max-width: 359px) { html { font-size: 14px; } }
@media (min-width: 1920px) { html { font-size: 17px; } }
@media (min-width: 2560px) { html { font-size: 18px; } }

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-page);
  color: var(--tx-0);
  font-family: 'Inter', 'DM Sans', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Subtle ambient depth — no particles, no mesh gradients: enterprise, not decorative */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(1200px 700px at 10% -10%, rgba(var(--gold-rgb), 0.07), transparent 60%),
    radial-gradient(1000px 620px at 100% 0%, rgba(56,169,224,0.05), transparent 60%),
    radial-gradient(800px 500px at 50% 110%, rgba(19,184,138,0.03), transparent 60%);
}

h1, h2, h3, h4 { font-weight: 600; line-height: 1.2; }

/* Tabular figures everywhere money/tonnage appears */
.mono, .rspan, .pc-rate-input, .pvr-val, .sv, .iv,
input[type="number"], input.cyan-glow, input.cargo-glow, input.sd-glow,
.bt td, .date-display {
  font-family: 'DM Mono', ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-nav {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 10000;
  background: var(--accent);
  color: #0a0e17;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 0 0 var(--r-sm) 0;
}
.skip-nav:focus {
  left: 0;
}

/* Global focus ring — WCAG 2.2 AA visible focus, keyboard-only */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--accent-hi);
  outline-offset: 2px;
  border-radius: var(--r-xs);
}

/* Reduced motion — single authoritative block */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

::selection {
  background: var(--accent-bg);
  color: var(--tx-0);
}

/* Thin, unobtrusive scrollbars (Chromium + Firefox) */
* { scrollbar-width: thin; scrollbar-color: var(--bdr-3) transparent; }
*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-thumb { background: var(--bdr-3); border-radius: var(--r-xs); }
*::-webkit-scrollbar-track { background: transparent; }