/*
 * Reusable Components — Micrometry Automator
 * Navigation, cards, footer, badges, and glassmorphism effects.
 */

/* ═══════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  height: var(--nav-height);
  background: rgba(10, 22, 40, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  transition: background var(--transition-base);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  font-weight: var(--weight-bold);
  font-size: var(--text-lg);
}

.nav-logo img {
  height: 36px;
  width: auto;
}

.nav-logo-text {
  letter-spacing: -0.01em;
}

.nav-logo-text .logo-highlight {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-links a {
  display: block;
  padding: var(--space-2) var(--space-4);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.05);
}

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

.nav-cta {
  margin-left: var(--space-4);
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  z-index: calc(var(--z-fixed) + 1);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav */
@media (max-width: 1023px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-surface);
    border-left: 1px solid var(--glass-border);
    padding: calc(var(--nav-height) + var(--space-6)) var(--space-6) var(--space-6);
    transition: right var(--transition-slow);
    z-index: var(--z-fixed);
  }

  .nav-menu.open {
    right: 0;
  }

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
  }

  .nav-links a {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
  }

  .nav-cta {
    margin-left: 0;
    margin-top: var(--space-4);
  }

  .nav-cta .btn {
    width: 100%;
    justify-content: center;
  }

  /* Overlay behind mobile menu */
  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-fixed) - 1);
  }

  .nav-overlay.active {
    display: block;
  }
}


/* ═══════════════════════════════════════════
   GLASSMORPHISM CARD
   ═══════════════════════════════════════════ */

.card {
  background: var(--gradient-card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: rgba(0, 212, 255, 0.15);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transform: translateY(-4px);
}

/* Card with icon */
.card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--color-accent-dim);
  margin-bottom: var(--space-5);
  color: var(--color-accent);
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

.card h3 {
  margin-bottom: var(--space-3);
  font-size: var(--text-xl);
}

.card p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* Compact card variant */
.card-compact {
  padding: var(--space-6);
}

.card-compact .card-icon {
  width: 44px;
  height: 44px;
  margin-bottom: var(--space-4);
}

.card-compact .card-icon svg {
  width: 22px;
  height: 22px;
}


/* ═══════════════════════════════════════════
   BADGE / TAG
   ═══════════════════════════════════════════ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-full);
  background: var(--color-accent-dim);
  color: var(--color-accent);
  letter-spacing: 0.03em;
}

.badge-warm {
  background: rgba(255, 184, 0, 0.15);
  color: var(--color-accent-warm);
}


/* ═══════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════ */

.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-surface-border);
  padding: var(--space-12) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
}

@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 639px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  max-width: 320px;
}

.footer-brand p {
  font-size: var(--text-sm);
  margin-top: var(--space-4);
}

.footer-heading {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-2);
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-surface-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-bottom p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}


/* ═══════════════════════════════════════════
   SCROLL ANIMATIONS
   ═══════════════════════════════════════════ */

/* Animations only activate when JS is confirmed loaded.
   Without JS, all content stays fully visible (progressive enhancement). */
html.js-loaded .fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

html.js-loaded .fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children animation */
html.js-loaded .stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

html.js-loaded .stagger-children.visible > *:nth-child(1) { transition-delay: 0ms; }
html.js-loaded .stagger-children.visible > *:nth-child(2) { transition-delay: 100ms; }
html.js-loaded .stagger-children.visible > *:nth-child(3) { transition-delay: 200ms; }
html.js-loaded .stagger-children.visible > *:nth-child(4) { transition-delay: 300ms; }
html.js-loaded .stagger-children.visible > *:nth-child(5) { transition-delay: 400ms; }
html.js-loaded .stagger-children.visible > *:nth-child(6) { transition-delay: 500ms; }
html.js-loaded .stagger-children.visible > *:nth-child(7) { transition-delay: 600ms; }
html.js-loaded .stagger-children.visible > *:nth-child(8) { transition-delay: 700ms; }

html.js-loaded .stagger-children.visible > * {
  opacity: 1;
  transform: translateY(0);
}


/* ═══════════════════════════════════════════
   CONTENT SPACER (for fixed nav)
   ═══════════════════════════════════════════ */

.nav-spacer {
  height: var(--nav-height);
}