/* ============================================
   Shared base — reset, typography helpers,
   scroll-reveal utilities. Each variation
   layers its own theme.css on top.
   ============================================ */

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

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

body {
  margin: 0;
  min-height: 100vh;
  font-feature-settings: "kern", "liga", "calt";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

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

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

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

h1, h2, h3, h4, h5, h6, p {
  margin: 0;
}

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

/* ---------- Scroll-reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 900ms cubic-bezier(.2,.65,.2,1),
              transform 900ms cubic-bezier(.2,.65,.2,1);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-delay="1"] { transition-delay: 80ms; }
.reveal[data-delay="2"] { transition-delay: 160ms; }
.reveal[data-delay="3"] { transition-delay: 240ms; }
.reveal[data-delay="4"] { transition-delay: 320ms; }
.reveal[data-delay="5"] { transition-delay: 400ms; }
.reveal[data-delay="6"] { transition-delay: 480ms; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Helpers ---------- */
.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;
}