/* =========================================================================
   VIIALA — Foundation
   Reset, base typography, and shared primitives.
   Depends on tokens.css.
   ========================================================================= */

@import url("./tokens.css");

/* -------------------------------------------------------------------------
   Modern reset (Josh Comeau-style, trimmed)
   ------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  -moz-tab-size: 4;
  tab-size: 4;
}

body {
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-weight: var(--fw-regular);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

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

p, li, blockquote { text-wrap: pretty; }

/* -------------------------------------------------------------------------
   Typography — editorial by default
   Serif for narrative headlines; sans for UI, body, small headings.
   ------------------------------------------------------------------------- */
h1, .h1, h2, .h2 {
  font-family: var(--font-serif);
  font-weight: var(--fw-regular);
  line-height: var(--lh-heading);
  letter-spacing: var(--tracking-tight);
  text-wrap: balance;
}
h3, .h3, h4, .h4, h5, .h5, h6, .h6 {
  font-family: var(--font-sans);
  font-weight: var(--fw-medium);
  line-height: var(--lh-heading);
  letter-spacing: var(--tracking-normal);
  text-wrap: balance;
}

.display-xl { font-family: var(--font-serif); font-size: var(--fs-display-xl); line-height: var(--lh-tight); letter-spacing: var(--tracking-tight); }
.display-l  { font-family: var(--font-serif); font-size: var(--fs-display-l);  line-height: var(--lh-tight); letter-spacing: var(--tracking-tight); }
.display-m  { font-family: var(--font-serif); font-size: var(--fs-display-m);  line-height: var(--lh-heading); letter-spacing: var(--tracking-tight); }

h1, .h1 { font-size: var(--fs-h1); }
h2, .h2 { font-size: var(--fs-h2); }
h3, .h3 { font-size: var(--fs-h3); }
h4, .h4 { font-size: var(--fs-h4); }

.eyebrow {
  font-family: var(--font-sans);
  font-size: var(--fs-caption);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.lead {
  font-family: var(--font-serif);
  font-size: var(--fs-body-l);
  line-height: var(--lh-relaxed);
  color: var(--color-text);
}

.body   { font-size: var(--fs-body);    line-height: var(--lh-body); }
.body-s { font-size: var(--fs-body-s);  line-height: var(--lh-body); }
.caption{ font-size: var(--fs-caption); line-height: var(--lh-body); color: var(--color-text-muted); }

.muted   { color: var(--color-text-muted); }
.inverse { color: var(--color-text-inverse); }

/* Links */
a {
  color: currentColor;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--duration-fast) var(--ease-standard);
}
a:hover { color: var(--color-accent); }
a:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: var(--radius-xs);
}

/* Selection */
::selection {
  background: var(--viiala-horizon-ember-40);
  color: var(--viiala-midnight-silk);
}

/* -------------------------------------------------------------------------
   Layout primitives
   ------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-lg);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
.container-xl { max-width: var(--container-xl); }
.container-md { max-width: var(--container-md); }

.stack       > * + * { margin-top: var(--space-4); }
.stack-sm    > * + * { margin-top: var(--space-2); }
.stack-lg    > * + * { margin-top: var(--space-6); }
.stack-xl    > * + * { margin-top: var(--space-8); }

.row {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  align-items: center;
}

.grid { display: grid; gap: var(--space-5); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 720px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.section {
  padding-block: var(--space-9);
}

/* Focus ring utility for interactive elements */
.focus-ring:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

/* Divider */
.divider {
  height: 1px;
  background: var(--color-border);
  border: 0;
  margin-block: var(--space-6);
}

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