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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  font-family: var(--font-secondary);
  font-size: 1rem;
  line-height: var(--line-height);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-primary);
  font-weight: 400;
  line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 8vw, 5rem); letter-spacing: 0.02em; }
h2 { font-size: clamp(1.875rem, 5vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.625rem); }

p { max-width: 65ch; }

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--color-brand);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 9999;
  border-radius: var(--radius);
  font-size: 0.875rem;
}
.skip-link:focus { top: 0.75rem; }

/* Container */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* Section header */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}
.section-header p {
  max-width: none;
  color: var(--color-muted);
  font-size: 1.0625rem;
  margin-top: 0.75rem;
  font-style: italic;
  font-family: var(--font-primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  min-height: 44px;
  min-width: 44px;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-brand);
  color: #fff;
  border: 1px solid var(--color-brand);
}
.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--color-brand-dark);
  border-color: var(--color-brand-dark);
}

.btn--outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.65);
}
.btn--outline:hover,
.btn--outline:focus-visible {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-line);
}
.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--color-brand);
  color: var(--color-brand);
}

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 3px;
}

/* Divider line */
.rule {
  width: 2.5rem;
  height: 1px;
  background: var(--color-brand);
  margin: 1rem auto 0;
}

/* Scroll reveal (JS adds .is-visible) */
.reveal {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}