/* ==========================================================================
   base.css — resets, typography, layout primitives, utilities, keyframes
   ========================================================================== */

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--gray-700);
  background: var(--white);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 { margin: 0; line-height: 1.15; color: inherit; }
p { margin: 0; line-height: 1.7; }

a { color: inherit; text-decoration: none; transition: color var(--transition); }

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

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

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

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

.serif { font-family: var(--font-serif); }

/* --- Layout primitives ---------------------------------------------------- */

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

.container-narrow { max-width: var(--container-7xl); margin-inline: auto; }
.container-6xl    { max-width: var(--container-6xl); margin-inline: auto; }
.container-5xl    { max-width: var(--container-5xl); margin-inline: auto; }

.px-page { padding-inline: 1.5rem; }
@media (min-width: 768px) { .px-page { padding-inline: 2.5rem; } }

/* --- Generic buttons ------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background var(--transition), color var(--transition), opacity var(--transition), box-shadow var(--transition);
  line-height: 1.25;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  padding: .625rem 1.5rem;
  font-size: .875rem;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover { background: var(--primary-hover); }

.btn-outline-primary {
  border: 2px solid var(--primary);
  color: var(--primary);
  padding: .625rem 1.5rem;
  font-size: .875rem;
}
.btn-outline-primary:hover { background: var(--primary); color: var(--white); }

.btn-light {
  background: var(--gray-100);
  color: var(--black);
  border: 1px solid var(--gray-100);
  padding: .625rem 1.5rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .05em;
}
.btn-light:hover { background: var(--gray-200); }

.read-more {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  font-size: .75rem;
  color: var(--gray-900);
}
.read-more:hover { color: var(--primary); }

/* --- Reveal-on-scroll (replaces framer-motion <Reveal>) ------------------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s ease, transform .7s ease;
}
[data-reveal="left"]  { transform: translateX(-40px); }
[data-reveal="right"] { transform: translateX(40px); }
[data-reveal].is-visible {
  opacity: 1;
  transform: translate(0, 0);
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* --- Keyframes ------------------------------------------------------------ */

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

@keyframes ping {
  75%, 100% { transform: scale(2); opacity: 0; }
}
@keyframes pulse {
  50% { opacity: .5; }
}

/* --- Misc utilities ------------------------------------------------------- */

.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;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}