/* ==========================================================================
   BORDERLANDS FOUNDATION — Base Styles
   Reset + global defaults. Import after tokens.css.
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--leading-normal);
  color: var(--color-text-dark);
  background-color: var(--color-warm-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

ul, ol {
  list-style: none;
}

/* --- Typography base --- */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);   /* 700; heroes use 800 */
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-dark);
  /* Sentence case ALWAYS — never text-transform: uppercase or capitalize */
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  line-height: var(--leading-relaxed);
  color: var(--color-stone-700);
}

strong { font-weight: var(--weight-semibold); }

/* --- Layout utilities --- */

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--section-padding-x);
}

.container--narrow {
  max-width: var(--container-md);
}

.container--wide {
  max-width: var(--container-2xl);
}

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

/* --- Background variants --- */

.bg-dark {
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
}

.bg-dark h1, .bg-dark h2, .bg-dark h3,
.bg-dark h4, .bg-dark h5, .bg-dark h6 {
  color: var(--color-white);
}

.bg-dark p {
  color: var(--color-navy-300);
}

.bg-navy-800 {
  background-color: var(--color-navy-800);
  color: var(--color-text-light);
}

.bg-warm {
  background-color: var(--color-warm-50);
}

.bg-warm-alt {
  background-color: var(--color-warm-100);
}

.bg-gold-tint {
  background-color: var(--color-gold-100);
}

/* --- Buttons --- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-normal);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  /* sentence case — no uppercase */
}

/* Primary = solid navy. The dominant, confident CTA on warm white. */
.btn--primary {
  background-color: var(--color-navy-900);
  color: var(--color-warm-50);
  border: 2px solid transparent;
}

.btn--primary:hover {
  background-color: var(--color-navy-800);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Gold = the high-emphasis donate/action CTA. Used sparingly. */
.btn--gold {
  background-color: var(--color-accent);
  color: var(--color-navy-900);
  border: 2px solid transparent;
}

.btn--gold:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

.btn--outline:hover {
  background-color: var(--color-white);
  color: var(--color-navy-900);
}

.btn--outline-gold {
  background-color: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn--outline-gold:hover {
  background-color: var(--color-accent);
  color: var(--color-navy-900);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-navy-700);
  border: 2px solid var(--color-stone-100);
}

.btn--ghost:hover {
  border-color: var(--color-navy-700);
  color: var(--color-navy-950);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

/* --- Label / eyebrow --- */

.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-normal);
  color: var(--color-gold-600);
  margin-bottom: var(--space-3);
  /* sentence case — no uppercase */
}

/* --- Divider line --- */

.divider {
  width: 48px;
  height: 3px;
  background-color: var(--color-accent);
  margin-block: var(--space-6);
}

.divider--center {
  margin-inline: auto;
}

/* --- Grid helpers --- */

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-8); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-8); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* --- Flex helpers --- */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { display: flex; flex-direction: column; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* --- Text utilities --- */
.text-center { text-align: center; }
.text-gold { color: var(--color-accent); }
.text-muted { color: var(--color-text-muted); }
.text-white { color: var(--color-white); }

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

/* --- Focus ring --- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}