/*
  Contour — base styles
  Font loading, a reset scoped to what this app actually needs, and the
  handful of global rules (focus, reduced motion, visually-hidden) that
  every component depends on rather than reimplementing.
*/

/* ---- Fonts (self-hosted, variable — one file covers the full weight range) ---- */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("../assets/fonts/Inter-Variable.woff2") format("woff2");
}

@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 500 700;
  font-display: swap;
  src: url("../assets/fonts/SpaceGrotesk-Variable.woff2") format("woff2");
}

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

html,
body,
h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

html {
  height: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100%;
  max-width: 100%;
  overflow-x: hidden; /* safety net — scrollable content (tables) must scroll in its own container */
}

img,
picture,
svg,
video {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

a {
  color: inherit;
}

ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

table {
  border-collapse: collapse;
}

/* ---- Base typography ---- */
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  font-weight: var(--weight-regular);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color var(--duration-base) var(--ease-standard),
    color var(--duration-base) var(--ease-standard);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
}

h1 {
  font-size: var(--text-xl);
}

h2 {
  font-size: var(--text-2xl);
}

h3 {
  font-size: var(--text-lg);
}

h4 {
  font-size: var(--text-md);
}

::selection {
  background-color: var(--color-accent-soft);
  color: var(--color-text-primary);
}

/* ---- Numeric data ---- */
.tabular-nums {
  font-variant-numeric: tabular-nums;
}

/* ---- Accessibility: focus ---- */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ---- Accessibility: visually hidden (skip link target text, chart data-table
   fallback, live regions) — hidden visually but present to assistive tech ---- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.visually-hidden.focusable:focus,
.visually-hidden.focusable:active {
  position: static;
  width: auto;
  height: auto;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}