.byo-sliding-nav {
  position: relative;
  --slider-opacity: 0;
}
.byo-brand-mark {
  display: flex;
  width: 2rem;
  height: 2rem;
  flex: 0 0 2rem;
  align-items: center;
  justify-content: center;
}
.byo-brand-symbol {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.byo-brand-name {
  display: flex;
  align-items: center;
  height: 1.25rem;
}
.byo-brand-wordmark {
  display: block;
  width: auto;
  height: .72rem;
  max-width: 9.5rem;
  object-fit: contain;
}
.byo-sliding-nav::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  height: 2px;
  width: var(--slider-width, 0px);
  border-radius: 999px;
  background: var(--foreground);
  opacity: var(--slider-opacity);
  transform: translateX(var(--slider-x, 0px));
  pointer-events: none;
  transition: transform 320ms cubic-bezier(.22, 1, .36, 1), width 320ms cubic-bezier(.22, 1, .36, 1), opacity 160ms ease;
}
.byo-sliding-nav > a {
  background-color: transparent;
}
@media (prefers-reduced-motion: reduce) {
  .byo-sliding-nav::after { transition: none; }
}

.byo-device-showcase {
  --showcase-progress: 0;
  position: relative;
  height: 125vh;
  margin-top: 1.5rem;
}
.byo-device-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  min-height: 0;
  overflow: hidden;
  display: grid;
  place-items: center;
  isolation: isolate;
}
.byo-device-visual {
  width: min(96vw, 100rem);
  transform: scale(calc(.98 + var(--showcase-progress) * .04));
  transform-origin: center center;
  will-change: transform;
}
.byo-device-visual > * {
  margin-top: 0 !important;
}
.byo-device-image {
  max-height: 88vh;
  object-fit: contain !important;
  filter: none;
}
.byo-device-copy {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  color: #fff;
  text-align: center;
  pointer-events: none;
  text-shadow: 0 2px 28px rgba(0,0,0,.34);
}
.byo-after-device {
  position: relative;
  z-index: 3;
  margin-top: -58vh !important;
}
.byo-device-kicker,
.byo-device-line {
  margin: 0;
  opacity: 0;
  will-change: opacity, transform;
}
.byo-device-kicker {
  margin-bottom: 1rem;
  font-size: clamp(.72rem, 1vw, .9rem);
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  opacity: clamp(0, calc((var(--showcase-progress) - .01) * 10), 1);
  transform: translateY(calc((.1 - var(--showcase-progress)) * 70px));
}
.byo-device-line {
  max-width: 14ch;
  font-size: clamp(2.25rem, 6vw, 6.5rem);
  font-weight: 650;
  line-height: .98;
  letter-spacing: -.055em;
}
.byo-device-line-one {
  opacity: clamp(0, calc((var(--showcase-progress) - .03) * 10), calc((.55 - var(--showcase-progress)) * 8));
  transform: translateY(calc((.2 - var(--showcase-progress)) * 120px));
}
.byo-device-line-two {
  position: absolute;
  opacity: clamp(0, calc((var(--showcase-progress) - .46) * 9), calc((1.04 - var(--showcase-progress)) * 8));
  transform: translateY(calc((.62 - var(--showcase-progress)) * 120px));
}

@media (max-width: 700px) {
  .byo-brand-name { display: none; }
  .byo-device-showcase {
    height: auto;
    min-height: 0;
    margin-top: 1rem;
  }
  .byo-device-sticky {
    position: relative;
    top: auto;
    display: block;
    height: auto;
    min-height: 0;
    overflow: visible;
  }
  .byo-device-visual {
    width: 100%;
    transform: none;
  }
  .byo-device-image {
    display: block;
    width: 100%;
    max-height: none;
  }
  .byo-device-line { font-size: clamp(2.2rem, 11vw, 4rem); }
  .byo-after-device { margin-top: 0 !important; }
}
@media (prefers-reduced-motion: reduce) {
  .byo-device-showcase { height: auto; min-height: 0; }
  .byo-device-sticky { position: relative; height: auto; min-height: 0; overflow: visible; }
  .byo-device-visual { transform: none; }
  .byo-device-image { filter: none; }
  .byo-device-copy { display: none; }
  .byo-after-device { margin-top: 0 !important; }
}


/* Mobile menu and icon transitions */
.byo-mobile-menu-panel {
  position: relative;
  z-index: 40;
  transform-origin: top center;
  overflow: hidden;
  animation: byo-menu-open 300ms cubic-bezier(.22, 1, .36, 1) both;
}
.byo-mobile-menu-panel nav > * {
  opacity: 0;
  transform: translateY(-8px);
  animation: byo-menu-item-in 260ms cubic-bezier(.22, 1, .36, 1) forwards;
}
.byo-mobile-menu-panel nav > *:nth-child(2) { animation-delay: 35ms; }
.byo-mobile-menu-panel nav > *:nth-child(3) { animation-delay: 70ms; }
.byo-mobile-menu-panel nav > *:nth-child(4) { animation-delay: 105ms; }
.byo-mobile-menu-panel.byo-mobile-menu-closing {
  pointer-events: none;
  animation: byo-menu-close 240ms cubic-bezier(.55, 0, 1, .45) both;
}
.byo-mobile-menu-panel.byo-mobile-menu-closing nav > * {
  animation: byo-menu-item-out 150ms ease forwards;
}
.byo-mobile-menu-toggle {
  position: relative;
  transition: background-color 220ms ease, border-color 220ms ease, transform 220ms ease;
}
.byo-mobile-menu-toggle:active { transform: scale(.92); }
.byo-mobile-menu-toggle svg {
  transform-origin: center;
  animation: byo-menu-icon-open 300ms cubic-bezier(.22, 1, .36, 1) both;
}
.byo-mobile-menu-toggle[aria-expanded="false"] svg {
  animation-name: byo-menu-icon-close;
}
.byo-mobile-menu-toggle-closing svg {
  animation: byo-menu-icon-out 220ms ease both !important;
}
@keyframes byo-menu-open {
  from { opacity: 0; max-height: 0; transform: translateY(-10px) scaleY(.94); }
  to { opacity: 1; max-height: 24rem; transform: translateY(0) scaleY(1); }
}
@keyframes byo-menu-close {
  from { opacity: 1; max-height: 24rem; transform: translateY(0) scaleY(1); }
  to { opacity: 0; max-height: 0; transform: translateY(-10px) scaleY(.96); }
}
@keyframes byo-menu-item-in {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes byo-menu-item-out {
  to { opacity: 0; transform: translateY(-6px); }
}
@keyframes byo-menu-icon-open {
  from { opacity: 0; transform: rotate(-90deg) scale(.65); }
  to { opacity: 1; transform: rotate(0) scale(1); }
}
@keyframes byo-menu-icon-close {
  from { opacity: 0; transform: rotate(90deg) scale(.65); }
  to { opacity: 1; transform: rotate(0) scale(1); }
}
@keyframes byo-menu-icon-out {
  to { opacity: 0; transform: rotate(90deg) scale(.65); }
}
@media (prefers-reduced-motion: reduce) {
  .byo-mobile-menu-panel,
  .byo-mobile-menu-panel nav > *,
  .byo-mobile-menu-toggle svg {
    animation-duration: 1ms !important;
    animation-delay: 0ms !important;
  }
}


/* Four-column desktop footer; stacked on smaller screens. */
@media (min-width: 768px) {
  .byo-footer-grid {
    grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  }
}