/* Reset + base element styles + shared components (nav, footer, buttons). */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: var(--leading-tight);
  margin: 0;
  letter-spacing: -0.01em;
}

p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

/* Focus visibility — kept strong and consistent everywhere */
:focus-visible {
  outline: 2px solid var(--color-accent-strong);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
.container--narrow { max-width: var(--content-width-narrow); }

/* Offset anchor-scroll targets so the fixed header never covers them */
main section[id] { scroll-margin-top: 96px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-strong);
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 1px;
  background: var(--color-accent-strong);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: transform var(--duration-fast) var(--ease), background var(--duration-fast) var(--ease), border-color var(--duration-fast) var(--ease);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }

.btn--primary {
  background: var(--color-accent);
  color: #0a0d0c;
}
.btn--primary:hover { background: var(--color-accent-strong); }

.btn--ghost {
  border-color: var(--color-border-strong);
  color: var(--color-text);
}
.btn--ghost:hover { border-color: var(--color-accent-strong); color: var(--color-accent-strong); }

/* ---- Site nav ---- */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  padding-block: var(--space-4);
  transition: background var(--duration-base) var(--ease), border-color var(--duration-base) var(--ease), padding var(--duration-base) var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(10, 13, 12, 0.82);
  backdrop-filter: blur(10px);
  border-color: var(--color-border);
  padding-block: var(--space-3);
}

.site-nav {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding-left: 44px;
}

.site-nav__brand {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.site-nav__logo {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-elevated-2);
  border: 1px solid var(--color-border-strong);
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.site-nav__links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease);
  padding-block: var(--space-1);
  border-bottom: 1px solid transparent;
}
.site-nav__links a:hover,
.site-nav__links a[aria-current="page"] {
  color: var(--color-text);
}
.site-nav__links a[aria-current="page"] {
  border-color: var(--color-accent);
}

.site-nav__actions { display: flex; align-items: center; gap: var(--space-4); }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}
.nav-toggle__bar,
.nav-toggle__bar::before,
.nav-toggle__bar::after {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--duration-fast) var(--ease), opacity var(--duration-fast) var(--ease);
}
.nav-toggle__bar::before { transform: translateY(-6px); }
.nav-toggle__bar::after { transform: translateY(4px); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::before { transform: translateY(0) rotate(45deg); background: var(--color-text); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::after { transform: translateY(0) rotate(-45deg); background: var(--color-text); }

@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; }
  .site-nav__links {
    position: fixed;
    inset: 0;
    top: 68px;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-6);
    padding: var(--space-7) var(--space-5);
    background: var(--color-bg);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--duration-base) var(--ease), opacity var(--duration-base) var(--ease);
  }
  .site-nav__links[data-open="true"] {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .site-nav__links a { font-size: var(--text-xl); }
  .site-nav__actions .btn--ghost { display: none; }
}

/* ---- Placeholder callout — visible on the live page, not just in code ---- */
.placeholder {
  border: 1px dashed var(--color-placeholder-border);
  background: var(--color-placeholder-bg);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-warm-strong);
}
.placeholder__label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-warm);
  margin-bottom: var(--space-2);
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-7);
  margin-top: var(--space-9);
}
.site-footer__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  color: var(--color-text-faint);
  font-size: var(--text-sm);
}
.site-footer__links { display: flex; gap: var(--space-5); }
.site-footer__links a:hover { color: var(--color-text-muted); }

/* ---- Scroll reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--duration-slow) var(--ease), transform var(--duration-slow) var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* Visually-hidden but accessible */
.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;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -60px;
  background: var(--color-accent);
  color: #0a0d0c;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 1000;
  transition: top var(--duration-fast) var(--ease);
}
.skip-link:focus { top: var(--space-4); }