/* Nav */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  height: var(--nav-h);
  padding: 0 var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(247, 250, 252, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--outline-soft);
  transition:
    background-color 0.45s ease,
    border-color 0.45s ease;
}

.site-nav.is-dark {
  background: rgba(14, 26, 36, 0.82);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.site-nav .nav-logo {
  display: flex;
  align-items: center;
  align-self: stretch;
  padding: 30px 0;
}

.site-nav .nav-logo img {
  height: calc(var(--nav-h) - 60px);
  width: auto;
  transition: opacity 0.35s ease, filter 0.35s ease;
}

.site-nav .nav-logo .logo-light { display: none; }

.site-nav .nav-logo .logo-dark {
  filter: brightness(0) saturate(100%) invert(17%) sepia(12%) saturate(1200%) hue-rotate(169deg) brightness(95%);
}

.site-nav.is-dark .nav-logo .logo-dark { display: none; }
.site-nav.is-dark .nav-logo .logo-light { display: block; filter: none; }

.site-nav .nav-links {
  display: flex;
  gap: clamp(20px, 3vw, 36px);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
}

.site-nav .nav-links a {
  color: var(--on-surface);
  position: relative;
  display: inline-block;
  opacity: 1;
  transform: translateY(0);
  transition:
    color 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.site-nav .nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: var(--tertiary);
  transform: scaleX(0);
  transform-origin: center;
  opacity: 0;
  transition:
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.35s ease;
}

.site-nav .nav-links a.is-active::after,
.site-nav .nav-links a:hover::after {
  transform: scaleX(1);
  opacity: 1;
}

.site-nav .nav-links a.is-leaving::after {
  transform: scaleX(0);
  opacity: 0;
}

.site-nav .nav-links a.is-entering {
  opacity: 1;
  transform: translateY(0);
}

.site-nav.is-scrolling .nav-links a:not(.is-active) {
  opacity: 0.42;
  transform: translateY(1px);
}

.site-nav.is-scrolling .nav-links a.is-active {
  opacity: 1;
  transform: translateY(-1px);
}

.site-nav.is-dark .nav-links a {
  color: var(--on-surface-inverse);
}

.site-nav.is-dark .nav-links a:hover,
.site-nav.is-dark .nav-links a.is-active {
  color: var(--tertiary);
}

/* Compare slider — render (left) / reality (right) */
.compare {
  max-width: 920px;
  margin: 0 auto clamp(40px, 6vw, 56px);
}

.compare-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(14, 26, 36, 0.18);
  user-select: none;
  touch-action: none;
  cursor: ew-resize;
  --split: 50;
}

.compare-frame.is-dragging {
  cursor: grabbing;
}

.compare-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  display: block;
}

.compare-render {
  z-index: 1;
}

.compare-reality {
  z-index: 2;
  clip-path: inset(0 0 0 calc(var(--split) * 1%));
}

.compare-badge {
  position: absolute;
  top: 16px;
  z-index: 3;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--azul-midnight-ink);
  background: rgba(255, 255, 255, 0.9);
  border-radius: 4px;
  pointer-events: none;
  box-shadow: 0 2px 10px rgba(14, 26, 36, 0.14);
}

.compare-badge--render {
  left: 16px;
}

.compare-badge--reality {
  right: 16px;
}

.compare-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(var(--split) * 1%);
  width: 2px;
  margin-left: -1px;
  background: rgba(255, 255, 255, 0.95);
  z-index: 4;
  transform: translateX(-50%);
  cursor: ew-resize;
}

.compare-handle-knob {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.94);
  color: rgba(43, 47, 51, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 18px rgba(14, 26, 36, 0.22);
  pointer-events: none;
}

.compare-handle-knob svg {
  width: 30px;
  height: 30px;
}

.compare-caption {
  margin: 18px 0 0;
  text-align: center;
  font-size: clamp(15px, 2vw, 18px);
  font-weight: 500;
  color: var(--on-surface-muted);
  letter-spacing: 0.01em;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  background: var(--tertiary);
  color: var(--azul-midnight-ink);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
}

@media (max-width: 600px) {
  .btn-primary { width: 100%; }
}

/* Shiny glow button */
.shiny-btn-filters {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.shiny-btn-wrap {
  position: relative;
  display: inline-block;
  margin: 0 auto;
}

.shiny-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 168px;
  height: 58px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 17px;
  isolation: isolate;
}

.shiny-btn__glow {
  position: absolute;
  pointer-events: none;
  overflow: hidden;
  opacity: 0.55;
  transition: opacity 0.3s ease;
}

.shiny-btn-wrap:hover .shiny-btn__glow,
.shiny-btn-wrap:focus-within .shiny-btn__glow {
  opacity: 0.8;
}

.shiny-btn:active .shiny-btn__glow {
  opacity: 1;
}

.shiny-btn__spin {
  position: absolute;
  inset: -150%;
}

.shiny-btn-wrap:hover .shiny-btn__spin,
.shiny-btn-wrap:focus-within .shiny-btn__spin {
  animation:
    shiny-speen 8s cubic-bezier(0.56, 0.15, 0.28, 0.86) infinite,
    shiny-woah 4s ease-in-out infinite;
}

.shiny-btn__glow--outer {
  inset: 0;
  z-index: 0;
  filter: blur(2em) url(#shiny-unopaq);
}

.shiny-btn__glow--outer .shiny-btn__spin {
  background: linear-gradient(90deg, var(--tertiary) 30%, transparent 50%, var(--secondary) 70%);
}

.shiny-btn__glow--mid {
  inset: -2px;
  z-index: 1;
  border-radius: 17px;
  filter: blur(0.25em) url(#shiny-unopaq2);
}

.shiny-btn__glow--mid .shiny-btn__spin {
  background: linear-gradient(90deg, #3dd4f2 20%, transparent 45% 55%, var(--primary) 80%);
}

.shiny-btn__body {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 168px;
  height: 58px;
  padding: 0 36px;
  border-radius: 15px;
  background: #111215;
  overflow: hidden;
}

.shiny-btn__glow--inner {
  inset: -2px;
  border-radius: inherit;
  filter: blur(2px) url(#shiny-unopaq3);
}

.shiny-btn__glow--inner .shiny-btn__spin {
  background: linear-gradient(90deg, var(--tertiary) 30%, transparent 45% 55%, var(--secondary) 70%);
}

.shiny-btn__label {
  position: relative;
  z-index: 1;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--on-surface-inverse);
}

.shiny-btn:focus-visible {
  outline: 2px solid var(--tertiary);
  outline-offset: 4px;
}

@keyframes shiny-speen {
  0% { transform: rotate(10deg); }
  50% { transform: rotate(190deg); }
  100% { transform: rotate(370deg); }
}

@keyframes shiny-woah {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(0.75); }
}

@media (max-width: 600px) {
  .shiny-btn-wrap,
  .shiny-btn,
  .shiny-btn__body {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .shiny-btn-wrap:hover .shiny-btn__spin,
  .shiny-btn-wrap:focus-within .shiny-btn__spin {
    animation: none;
  }
}