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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-body);
  background-color: var(--color-bg-page);
  margin: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-heading);
  line-height: var(--leading-tight);
  margin-top: 0;
}

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

a { color: inherit; }

.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;
}

/* ── Navigation ── */
.site-header {
  background-color: var(--color-bg-dark);
  position: relative;
  z-index: 10;
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text-light);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  flex-shrink: 0;
  letter-spacing: -0.01em;
}

.nav-logo img {
  max-height: 48px;
  width: auto;
}

.nav-logo__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-accent);
  color: var(--color-bg-dark);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

.site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--space-5);
  align-items: center;
}

.site-nav__link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-light);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: color var(--transition-base);
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--color-accent);
}

.site-nav__link.active {
  color: var(--color-accent);
}

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-light);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-2);
  line-height: 1;
}

.nav-hamburger:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.nav-drawer {
  display: none;
  background-color: var(--color-bg-dark);
  padding: var(--space-5) var(--container-pad);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-drawer.open {
  display: block;
}

.nav-drawer__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.nav-drawer__list a {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-light);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: color var(--transition-base);
}

.nav-drawer__list a:hover {
  color: var(--color-accent);
}

.nav-drawer__list a.active {
  color: var(--color-accent);
}

/* ── CTA Button ── */
.btn-cta {
  display: inline-block;
  width: 100%;
  padding: var(--space-4) var(--space-5);
  background: var(--color-accent);
  color: var(--color-text-light);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-base), transform var(--transition-base);
}

.btn-cta:hover,
.btn-cta:focus-visible {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.btn-cta:active {
  transform: translateY(0);
}

.btn-cta:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* ── Secondary Button ── */
.btn-secondary {
  display: inline-block;
  padding: var(--space-3) var(--space-5);
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-base), color var(--transition-base);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: var(--color-primary);
  color: var(--color-text-light);
}

/* ── Footer ── */
.site-footer {
  background-color: var(--color-bg-dark);
  padding: var(--space-7) var(--container-pad);
  text-align: center;
}

.site-footer p {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
}

/* ── Mobile nav ── */
@media (max-width: 768px) {
  .nav-container {
    height: 60px;
  }

  .site-nav {
    display: none;
  }

  .nav-hamburger {
    display: block;
  }
}