/* ============================================================
   Base — reset + typography + global
   ============================================================ */

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

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

body {
  font-family: var(--font-family-base);
  font-size: var(--fs-base);
  font-weight: var(--fw-regular);
  line-height: var(--lh-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-fast);
}
a:hover { color: var(--color-primary); }

button {
  font-family: inherit;
  border: 0;
  background: none;
  cursor: pointer;
  color: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-base);
  font-weight: var(--fw-extrabold);
  line-height: var(--lh-tight);
  color: var(--color-text);
  letter-spacing: -0.015em;
}

h1 { font-size: var(--fs-5xl); }
h2 { font-size: var(--fs-4xl); }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-xl); }

p { line-height: var(--lh-relaxed); }

/* Focus for accessibility */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Container */
.container {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 0 var(--page-padding-x);
  width: 100%;
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   Responsive: type scale + container padding
   ============================================================ */

@media (max-width: 1279px) {
  .container { padding: 0 var(--page-padding-md); }
}

@media (max-width: 767px) {
  .container { padding: 0 var(--page-padding-sm); }

  h1 { font-size: var(--fs-3xl); }
  h2 { font-size: 28px; }
  h3 { font-size: var(--fs-xl); }
}