motion.css

/* ============================================
   MOTION.CSS — 2026 Motion Graphics & Polish
   SupaLedgers Design System Extension
   ============================================ */

/* ============================================
   0. RESPECT REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .aurora, .dot-grid-bg { display: none !important; }
}

/* ============================================
   1. FIX: ABOVE-FOLD VISIBILITY
   Elements in the viewport on load should be
   immediately visible. The IntersectionObserver
   will fire, but there's a flash of hidden content.
   We mark the hero and first sections as visible
   via JS (see motion.js), and also make the hero
   content always visible since it's always above fold.
   ============================================ */

/* Hero content is always above fold — never hide it */
.hero .js-reveal,
.hero .stagger,
.hero .stagger > * {
  opacity: 1 !important;
  transform: none !important;
}

/* Make js-reveal snappier for below-fold */
.js-reveal {
  transition: opacity 0.45s var(--ease-out), transform 0.45s var(--ease-out);
}

.stagger > * {
  transition: opacity 0.4s var(--ease-out), transform 0.4s var(--ease-out);
}

/* ============================================
   2. HERO AURORA / ANIMATED GRADIENT MESH
   Slow-shifting gradient using @property
   ============================================ */

@property --aurora-1 {
  syntax: '<percentage>';
  initial-value: 20%;
  inherits: false;
}

@property --aurora-2 {
  syntax: '<percentage>';
  initial-value: 80%;
  inherits: false;
}

@property --aurora-3 {
  syntax: '<percentage>';
  initial-value: 40%;
  inherits: false;
}

@property --aurora-4 {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}

.aurora {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.aurora::before,
.aurora::after {
  content: '';
  position: absolute;
  inset: -50%;
  animation: aurora-shift 16s ease-in-out infinite alternate;
}

.aurora::before {
  background:
    radial-gradient(ellipse 50% 40% at var(--aurora-1) 30%, rgba(39, 171, 131, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 40% 50% at var(--aurora-2) 60%, rgba(62, 189, 147, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse 60% 30% at 50% var(--aurora-3), rgba(20, 125, 100, 0.06) 0%, transparent 60%);
  filter: blur(40px);
  animation: aurora-move-1 12s ease-in-out infinite alternate;
}

.aurora::after {
  background:
    radial-gradient(ellipse 45% 35% at 70% 40%, rgba(100, 100, 200, 0.05) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 30% 70%, rgba(39, 171, 131, 0.06) 0%, transparent 50%);
  filter: blur(60px);
  animation: aurora-move-2 18s ease-in-out infinite alternate-reverse;
}

@keyframes aurora-move-1 {
  0%   { --aurora-1: 20%; --aurora-2: 80%; --aurora-3: 40%; }
  33%  { --aurora-1: 40%; --aurora-2: 60%; --aurora-3: 55%; }
  66%  { --aurora-1: 60%; --aurora-2: 35%; --aurora-3: 30%; }
  100% { --aurora-1: 30%; --aurora-2: 75%; --aurora-3: 60%; }
}

@keyframes aurora-move-2 {
  0%   { transform: translate(0, 0) rotate(0deg); opacity: 0.7; }
  50%  { transform: translate(5%, -3%) rotate(3deg); opacity: 1; }
  100% { transform: translate(-3%, 5%) rotate(-2deg); opacity: 0.8; }
}

/* ============================================
   3. ANIMATED DOT GRID FOR DARK SECTIONS
   CSS-only pulsing dot pattern
   ============================================ */

.dot-grid-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.dot-grid-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle 1px at center, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black, transparent 80%);
  animation: dot-pulse 6s ease-in-out infinite alternate;
}

@keyframes dot-pulse {
  0%   { opacity: 0.4; }
  50%  { opacity: 0.7; }
  100% { opacity: 0.5; }
}

/* ============================================
   4. CARD HOVER GLOW EFFECTS
   Subtle border-glow on hover for cards
   ============================================ */

/* Feature cards, pricing cards, testimonials, value cards */
.card,
.pricing-card,
.pricing-card-full,
.testimonial,
.value-card,
.mockup-card {
  position: relative;
  transition: box-shadow 0.3s var(--ease-out),
              transform 0.3s var(--ease-out),
              border-color 0.3s var(--ease-out);
}

.card:hover,
.testimonial:hover,
.value-card:hover {
  box-shadow: 0 4px 20px rgba(39, 171, 131, 0.1),
              0 0 0 1px rgba(39, 171, 131, 0.08);
  border-color: rgba(39, 171, 131, 0.2);
  transform: translateY(-2px);
}

.pricing-card:hover,
.pricing-card-full:hover {
  box-shadow: 0 4px 20px rgba(39, 171, 131, 0.08),
              0 0 0 1px rgba(39, 171, 131, 0.08);
  border-color: rgba(39, 171, 131, 0.15);
  transform: translateY(-2px);
}

/* Don't override the featured card's existing glow */
.pricing-card--featured:hover,
.pricing-card-full--featured:hover {
  box-shadow: 0 0 0 1.5px var(--teal-400),
              0 8px 24px rgba(39, 171, 131, 0.12);
}

.mockup-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}

/* Card inner glow effect on hover - CSS-only spotlight */
.card::after,
.pricing-card::after,
.pricing-card-full::after,
.testimonial::after,
.value-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
  pointer-events: none;
  background: radial-gradient(
    300px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(39, 171, 131, 0.06),
    transparent 60%
  );
  z-index: 1;
}

.card:hover::after,
.pricing-card:hover::after,
.pricing-card-full:hover::after,
.testimonial:hover::after,
.value-card:hover::after {
  opacity: 1;
}

/* Ensure card content stays above the glow */
.card > *,
.pricing-card > *,
.pricing-card-full > *,
.testimonial > *,
.value-card > * {
  position: relative;
  z-index: 2;
}

/* ============================================
   5. SMOOTH NUMBER COUNTERS (pricing)
   Handled by JS, CSS provides smooth look
   ============================================ */

.counter-animated {
  display: inline-block;
  font-variant-numeric: tabular-nums lining-nums;
}

/* ============================================
   6. GLASSMORPHISM POLISH
   Enhanced nav on scroll + "Free Beta" card
   ============================================ */

/* Enhanced nav glassmorphism on scroll */
.nav--scrolled {
  background: rgba(255, 255, 255, 0.85) !important;
  backdrop-filter: blur(24px) saturate(1.5) !important;
  -webkit-backdrop-filter: blur(24px) saturate(1.5) !important;
  border-bottom-color: rgba(16, 42, 67, 0.06) !important;
  box-shadow: 0 1px 3px rgba(16, 42, 67, 0.04),
              0 4px 12px rgba(16, 42, 67, 0.04) !important;
}

/* Glass effect for the Free Beta card on contact page */
.contact-info__card {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-xl) !important;
  overflow: hidden;
  position: relative;
}

.contact-info__card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(39, 171, 131, 0.05) 0%,
    rgba(255, 255, 255, 0.02) 50%,
    rgba(39, 171, 131, 0.03) 100%
  );
  pointer-events: none;
}

/* ============================================
   7. MICRO-INTERACTIONS
   Button scale+glow, link underlines, pulse dot
   ============================================ */

/* Button hover: subtle scale-up + glow */
.btn--primary:hover {
  transform: translateY(-1px) scale(1.02) !important;
  box-shadow: 0 4px 20px rgba(39, 171, 131, 0.35),
              0 0 40px rgba(39, 171, 131, 0.1) !important;
}

.btn--primary:active {
  transform: translateY(0) scale(0.98) !important;
  box-shadow: 0 2px 8px rgba(39, 171, 131, 0.2) !important;
}

.btn--secondary:hover {
  transform: translateY(-1px) scale(1.01);
}

.btn--outline-light:hover {
  transform: translateY(-1px) scale(1.02);
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.06);
}

/* Nav link smooth underline animation */
.nav__links a:not(.nav__cta) {
  position: relative;
}

.nav__links a:not(.nav__cta)::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-accent);
  transition: width 0.25s var(--ease-out);
}

.nav__links a:not(.nav__cta):hover::after,
.nav__links a:not(.nav__cta).active::after {
  width: 100%;
}

/* Footer link underline animation */
.footer__col a {
  position: relative;
}

.footer__col a::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width 0.25s var(--ease-out);
}

.footer__col a:hover::after {
  width: 100%;
}

/* Pulse dot animation for "Beta spots are limited" badge */
@keyframes pulse-dot {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(39, 171, 131, 0.5);
  }
  50% {
    opacity: 0.8;
    box-shadow: 0 0 0 6px rgba(39, 171, 131, 0);
  }
}

/* Ensure the inline pulse dot works */
[style*="animation:pulse"] {
  animation: pulse-dot 2s ease-in-out infinite !important;
}

/* ============================================
   8. SMOOTH SECTION TRANSITIONS
   Gradient dividers instead of hard edges
   ============================================ */

/* Light → Dark transition */
.section--light + .section--dark,
.section--gray + .section--dark {
  position: relative;
}

.section--light + .section--dark::before,
.section--gray + .section--dark::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(
    to bottom,
    var(--color-bg) 0%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 1;
}

.section--gray + .section--dark::before {
  background: linear-gradient(
    to bottom,
    var(--color-surface) 0%,
    transparent 100%
  );
}

/* Dark → Light transition */
.section--dark + .section--light,
.section--dark + .section--gray {
  position: relative;
}

.section--dark + .section--light::before,
.section--dark + .section--gray::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(
    to bottom,
    var(--color-surface-dark) 0%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 1;
}

/* Light → Gray transition */
.section--light + .section--gray {
  position: relative;
}

.section--light + .section--gray::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 24px;
  background: linear-gradient(
    to bottom,
    var(--color-bg) 0%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 1;
}

/* Gray → Light transition */
.section--gray + .section--light {
  position: relative;
}

.section--gray + .section--light::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 24px;
  background: linear-gradient(
    to bottom,
    var(--color-surface) 0%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 1;
}

/* ============================================
   9. NAV CTA BUTTON PULSE ON IDLE
   Subtle attention-grabbing pulse
   ============================================ */

.nav__cta {
  position: relative;
  overflow: visible;
}

.nav__cta::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: var(--color-accent);
  opacity: 0;
  z-index: -1;
  animation: cta-glow 3s ease-in-out infinite;
}

@keyframes cta-glow {
  0%, 100% { opacity: 0; transform: scale(1); }
  50% { opacity: 0.15; transform: scale(1.08); }
}

/* ============================================
   10. VOICE DEMO CARD ENHANCEMENTS
   Make the hero demo card feel more alive
   ============================================ */

.voice-demo {
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}

.voice-demo:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3),
              0 0 40px rgba(39, 171, 131, 0.08);
}

/* Typing effect on transcript */
.voice-demo__transcript p {
  overflow: hidden;
  border-right: 2px solid rgba(159, 179, 200, 0.5);
  animation: cursor-blink 1.2s step-end infinite;
}

@keyframes cursor-blink {
  0%, 100% { border-color: rgba(159, 179, 200, 0.5); }
  50% { border-color: transparent; }
}

/* ============================================
   11. THESIS STEP ANIMATION
   Subtle continuous animation on the flow icons
   ============================================ */

.thesis__step-icon {
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.thesis__step:hover .thesis__step-icon {
  transform: scale(1.1);
  box-shadow: 0 0 20px rgba(39, 171, 131, 0.2);
}

.thesis__arrow {
  animation: arrow-nudge 2s ease-in-out infinite;
}

@keyframes arrow-nudge {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(4px); }
}

@media (max-width: 640px) {
  .thesis__arrow {
    animation: arrow-nudge-down 2s ease-in-out infinite;
  }
  @keyframes arrow-nudge-down {
    0%, 100% { transform: rotate(90deg) translateX(0); }
    50% { transform: rotate(90deg) translateX(4px); }
  }
}

/* ============================================
   12. HOW-STEP NUMBER ANIMATION
   ============================================ */

.how-step__num {
  transition: color 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}

.how-step:hover .how-step__num {
  color: var(--teal-200);
  transform: translateY(-2px);
}

/* ============================================
   13. FAQ DETAILS ANIMATION
   ============================================ */

.faq-item summary {
  transition: color 0.2s var(--ease-out);
}

.faq-item[open] summary {
  color: var(--color-accent);
}

.faq-item p {
  animation: faq-expand 0.3s var(--ease-out);
}

@keyframes faq-expand {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   14. TEAM AVATAR HOVER
   ============================================ */

.team-avatar {
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.team-member:hover .team-avatar {
  transform: scale(1.05);
  box-shadow: 0 0 24px rgba(39, 171, 131, 0.15);
}

/* ============================================
   15. GENERAL CARD ENTRANCE STAGGER
   (applied to feature sections on features page)
   ============================================ */

.feature-section .feature-visual {
  transition: transform 0.5s var(--ease-out), opacity 0.5s var(--ease-out);
}

/* ============================================
   16. SAVINGS HIGHLIGHT ANIMATION
   Pulsing glow on the savings row
   ============================================ */

.cost-row--savings {
  animation: savings-glow 3s ease-in-out infinite;
}

@keyframes savings-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(39, 171, 131, 0); }
  50% { box-shadow: 0 0 20px rgba(39, 171, 131, 0.1); }
}

/* ============================================
   17. MOBILE REFINEMENTS
   ============================================ */

@media (max-width: 768px) {
  /* Reduce section transition heights on mobile */
  .section--light + .section--dark::before,
  .section--gray + .section--dark::before,
  .section--dark + .section--light::before,
  .section--dark + .section--gray::before {
    height: 40px;
  }

  .section--light + .section--gray::before,
  .section--gray + .section--light::before {
    height: 24px;
  }

  /* Simpler hover effects on touch devices */
  @media (hover: none) {
    .card:hover,
    .testimonial:hover,
    .value-card:hover,
    .pricing-card:hover,
    .pricing-card-full:hover {
      transform: none;
    }
  }
}