/* Skip nav */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--page-margin);
  padding: var(--space-2) var(--space-4);
  background: var(--color-text);
  color: var(--color-bg);
  font-size: var(--text-label);
  font-weight: 400;
  text-decoration: none;
  z-index: 10000;
  border-radius: var(--radius-md);
}
.skip-link:focus {
  top: var(--space-4);
}

/* Pause animations button — visually hidden, keyboard accessible (WCAG 2.2.2) */
.pause-animations {
  position: absolute;
  top: -100%;
  left: var(--page-margin);
  padding: var(--space-2) var(--space-4);
  background: var(--color-text);
  color: var(--color-bg);
  font-family: var(--font-body);
  font-size: var(--text-label);
  font-weight: 400;
  border: none;
  cursor: pointer;
  z-index: 10000;
  border-radius: var(--radius-md);
}
.pause-animations:focus {
  top: calc(var(--space-4) + 32px + var(--space-2));
}

/* Focus indicators — keyboard navigation */
:focus-visible {
  outline: 2px solid var(--color-ruby);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}
* {
  margin: 0;
}
body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 300;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img,
video {
  max-width: 100%;
  display: block;
}
p,
h1,
h2,
h3 {
  overflow-wrap: break-word;
}

/* Rubylith entrance overlay — shared across all pages */
.ruby-entrance {
  position: fixed;
  inset: 0;
  background: var(--color-ruby);
  mix-blend-mode: var(--ruby-blend);
  opacity: 1;
  pointer-events: none;
  z-index: 200;
}

/* Eyebrow — shared across all pages */
.eyebrow {
  display: inline-block;
  font-size: var(--text-eyebrow);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  background: #d40e0e; /* Darker than --color-ruby for WCAG AA contrast (5.43:1 vs 4.17:1) */
  padding: var(--space-1) var(--space-3);
  transition: background var(--duration-base) var(--ease-out);
}

.eyebrow:hover {
  background: var(--color-cyan);
}

/* Buttons */
.btn-primary {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  background: var(--color-text);
  color: var(--color-bg);
  border-radius: var(--radius-md);
  font-size: var(--text-label);
  font-weight: 400;
  text-decoration: none;
  transition: opacity var(--duration-fast) var(--ease-out);
}
.btn-primary:hover {
  opacity: 0.85;
}

.btn-secondary {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  background: transparent;
  color: var(--color-text);
  border: var(--border-default) solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-label);
  font-weight: 400;
  text-decoration: none;
  transition: background var(--duration-fast) var(--ease-out);
}
.btn-secondary:hover {
  background: var(--color-surface);
}

/* Scroll-driven fade-in */
@media (prefers-reduced-motion: no-preference) {
  .fade-in {
    opacity: 0;
    transform: translateY(16px);
    transition:
      opacity var(--duration-slow) var(--ease-out),
      transform var(--duration-slow) var(--ease-out);
  }
  .fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Ruby cursor — desktop / pointer devices only */
.cursor-ruby {
  position: fixed;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: var(--color-ruby);
  mix-blend-mode: var(--ruby-blend);
  pointer-events: none;
  z-index: 9999;
  top: 0;
  left: 0;
  will-change: transform;
  opacity: 0;
  transition:
    opacity var(--duration-fast) var(--ease-out),
    width var(--duration-fast) var(--ease-spring),
    height var(--duration-fast) var(--ease-spring),
    background var(--duration-base) var(--ease-out);
}

.cursor-ruby.is-hovering {
  width: 16px;
  height: 16px;
  background: var(--color-cyan);
}

/* Responsive breakpoints */
/* Mobile first — base styles apply to mobile */
/* Tablet */
@media (min-width: 768px) {
}
/* Desktop */
@media (min-width: 1024px) {
}
/* Wide */
@media (min-width: 1280px) {
}