:root {
  --site-header-height: 82px;
  --tower-y: -1600px;
  --tower-scale: 1;
  --tower-shift-x: 0px;
  --tower-glow-x: 75%;
  --tower-glow-y: 50%;
}

.site-header {
  padding-top: 8px;
  padding-bottom: 8px;
}

.brand {
  width: 196px;
  min-height: 70px;
}

.section[id] {
  scroll-margin-top: calc(var(--site-header-height) + 12px);
}

.tower-journey {
  position: relative;
  min-height: calc(100svh - var(--site-header-height));
  color: var(--ivory);
  background: var(--graphite);
}

.tower-enabled .tower-journey {
  min-height: 620svh;
}

.tower-stage {
  position: relative;
  height: calc(100svh - var(--site-header-height));
  min-height: 620px;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at 76% 28%, rgba(112, 126, 130, 0.12), transparent 29%),
    linear-gradient(180deg, #101314 0%, #0e1011 57%, #0a0c0d 100%);
}

.tower-enabled .tower-stage {
  position: sticky;
  top: var(--site-header-height);
}

.tower-atmosphere,
.tower-grid,
.tower-cursor-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.tower-atmosphere {
  z-index: 0;
  opacity: 0.7;
  background:
    linear-gradient(90deg, transparent 0 49.95%, rgba(243, 240, 232, 0.025) 50%, transparent 50.05%),
    radial-gradient(ellipse at 70% 105%, rgba(243, 240, 232, 0.12), transparent 42%),
    radial-gradient(ellipse at 78% 48%, rgba(91, 103, 107, 0.1), transparent 35%);
}

.tower-grid {
  z-index: 1;
  opacity: 0.7;
  background-image:
    linear-gradient(rgba(243, 240, 232, 0.032) 1px, transparent 1px),
    linear-gradient(90deg, rgba(243, 240, 232, 0.032) 1px, transparent 1px);
  background-size: 128px 128px;
  -webkit-mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.7), transparent 48%, rgba(0, 0, 0, 0.9));
  mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.7), transparent 48%, rgba(0, 0, 0, 0.9));
}

.tower-cursor-glow {
  z-index: 3;
  opacity: 0;
  transition: opacity 280ms ease;
  background: radial-gradient(
    circle 230px at var(--tower-glow-x) var(--tower-glow-y),
    rgba(243, 240, 232, 0.09),
    rgba(243, 240, 232, 0.025) 35%,
    transparent 72%
  );
  mix-blend-mode: screen;
}

.tower-stage:hover .tower-cursor-glow {
  opacity: 1;
}

.tower-visual-wrap {
  position: absolute;
  z-index: 2;
  inset: 0 0 0 36%;
  overflow: hidden;
  background: #0e1011;
  pointer-events: none;
}

.tower-sequence-canvas,
.tower-sequence-poster,
.tower-model-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.tower-sequence-canvas {
  z-index: 1;
  display: block;
  opacity: 0;
  transition: opacity 420ms ease;
}

.tower-sequence-poster {
  z-index: 0;
  object-fit: cover;
  object-position: 53% 50%;
  transform: scale(1.7);
  transform-origin: 54% 72%;
  transition: opacity 420ms ease;
}

.tower-sequence-ready .tower-sequence-canvas {
  opacity: 1;
}

.tower-sequence-ready .tower-sequence-poster {
  opacity: 0;
}

.tower-model-shade {
  z-index: 2;
  background:
    linear-gradient(90deg, #0e1011 0%, rgba(14, 16, 17, 0.93) 7%, rgba(14, 16, 17, 0.23) 35%, transparent 56%),
    linear-gradient(180deg, rgba(14, 16, 17, 0.18), transparent 34%, rgba(8, 10, 11, 0.44));
}

.tower-model-beacon {
  position: absolute;
  z-index: 3;
  top: 15.8%;
  left: 61%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  opacity: 0;
  background: var(--red);
  box-shadow: 0 0 0 8px rgba(255, 74, 53, 0.08), 0 0 28px rgba(255, 74, 53, 0.8);
  transition: opacity 500ms ease;
}

.tower-final-state .tower-model-beacon {
  opacity: 1;
  animation: tower-beacon 1.8s ease-in-out infinite;
}

.tower-svg-fallback {
  display: none;
}

.tower-static-sequence .tower-sequence-canvas {
  display: none;
}

.tower-static-sequence .tower-sequence-poster,
.tower-static-sequence.tower-sequence-ready .tower-sequence-poster {
  opacity: 0.38;
  object-position: 50% 50%;
  transform: none;
}

.tower-visual {
  position: absolute;
  top: 0;
  left: 54%;
  display: block;
  width: auto;
  height: 305svh;
  overflow: visible;
  transform-origin: 50% 0;
  transform: translate3d(calc(-50% + var(--tower-shift-x)), var(--tower-y), 0) scale(var(--tower-scale));
  will-change: transform;
  filter: drop-shadow(0 32px 50px rgba(0, 0, 0, 0.32));
}

.tower-zone {
  opacity: 0.025;
  transition: opacity 480ms ease, filter 480ms ease;
}

.tower-zone.is-complete {
  opacity: 0.46;
}

.tower-zone.is-active {
  opacity: 0.98;
  filter: drop-shadow(0 0 13px rgba(243, 240, 232, 0.36));
}

.tower-final-state .tower-zone {
  opacity: 0.78;
}

.tower-beacon {
  opacity: 0.12;
  transition: opacity 500ms ease;
}

.tower-final-state .tower-beacon {
  opacity: 1;
  animation: tower-beacon 1.8s ease-in-out infinite;
}

@keyframes tower-beacon {
  0%, 100% { transform: scale(0.78); opacity: 0.58; }
  50% { transform: scale(1.16); opacity: 1; }
}

.tower-datum {
  position: absolute;
  z-index: 4;
  top: 61.5%;
  left: 37%;
  right: 4%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  color: var(--red);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.16em;
  white-space: nowrap;
  pointer-events: none;
}

.tower-datum i {
  display: block;
  height: 1px;
  background: var(--red);
  box-shadow: 0 0 13px rgba(255, 74, 53, 0.36);
}

.journey-shell {
  position: relative;
  z-index: 5;
  width: min(calc(100% - 48px), var(--max));
  height: 100%;
  margin: 0 auto;
  pointer-events: none;
}

.journey-copy {
  position: absolute;
  inset: 0 auto 0 0;
  width: min(45%, 610px);
}

.journey-panel {
  position: absolute;
  top: 49%;
  left: 0;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  transform: translate3d(0, 28px, 0);
  transition: opacity 320ms ease, transform 420ms cubic-bezier(0.22, 1, 0.36, 1), visibility 320ms;
  pointer-events: none;
}

.journey-panel.is-active {
  opacity: 1;
  visibility: visible;
  transform: translate3d(0, -50%, 0);
  pointer-events: auto;
}

.journey-panel.is-before {
  transform: translate3d(0, calc(-50% - 24px), 0);
}

.journey-intro {
  top: 47%;
}

.journey-panel .button {
  pointer-events: auto;
}

.journey-kicker,
.journey-index,
.journey-name {
  margin: 0 0 18px;
  color: var(--red);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.journey-index {
  display: inline-block;
  min-width: 70px;
  color: var(--steel);
}

.journey-name {
  display: inline-block;
}

.journey-panel h1,
.journey-panel h2 {
  max-width: 660px;
  margin: 0 0 24px;
  color: var(--ivory);
}

.journey-panel h1 {
  font-size: clamp(54px, 5.9vw, 91px);
  line-height: 0.93;
  letter-spacing: -0.065em;
}

.journey-panel h2 {
  font-size: clamp(40px, 4.4vw, 64px);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.journey-panel > p:not(.journey-kicker, .journey-index, .journey-name) {
  max-width: 600px;
  margin-bottom: 28px;
  color: #aeb2b3;
  font-size: clamp(16px, 1.5vw, 20px);
}

.journey-lead {
  line-height: 1.55;
}

.journey-outcome {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 16px;
  max-width: 540px;
  padding-top: 18px;
  border-top: 1px solid rgba(243, 240, 232, 0.18);
}

.journey-outcome span {
  color: var(--red);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.journey-outcome strong {
  color: var(--ivory);
  font-size: 13px;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.journey-final h2 {
  max-width: 720px;
}

.journey-progress {
  position: absolute;
  right: 0;
  bottom: 20px;
  left: 0;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  border-top: 1px solid rgba(243, 240, 232, 0.14);
  pointer-events: auto;
}

.journey-progress button {
  position: relative;
  min-height: 54px;
  padding: 13px 10px 0;
  border: 0;
  color: #656b6d;
  background: transparent;
  text-align: left;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 220ms ease;
}

.journey-progress button::before {
  content: "";
  position: absolute;
  top: -1px;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 320ms ease;
}

.journey-progress button span {
  margin-right: 8px;
  color: inherit;
}

.journey-progress button:hover,
.journey-progress button:focus-visible,
.journey-progress button.is-active,
.journey-progress button.is-complete {
  color: var(--ivory);
}

.journey-progress button.is-active::before,
.journey-progress button.is-complete::before {
  transform: scaleX(1);
}

.journey-progress button:focus-visible,
.tower-skip:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 4px;
}

.tower-skip {
  position: absolute;
  z-index: 8;
  top: 18px;
  right: max(24px, calc((100vw - var(--max)) / 2));
  padding: 8px 0;
  color: #818789;
  border-bottom: 1px solid rgba(243, 240, 232, 0.2);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 180ms ease, border-color 180ms ease;
}

.tower-skip:hover {
  color: var(--ivory);
  border-color: var(--red);
}

.tower-scroll-hint {
  position: absolute;
  z-index: 6;
  bottom: 92px;
  left: 50%;
  display: flex;
  gap: 10px;
  align-items: center;
  color: #6f7577;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transform: translateX(-50%);
  transition: opacity 260ms ease;
  pointer-events: none;
}

.tower-scroll-hint span {
  position: relative;
  width: 18px;
  height: 28px;
  border: 1px solid #5d6365;
  border-radius: 12px;
}

.tower-scroll-hint span::after {
  content: "";
  position: absolute;
  top: 6px;
  left: 7px;
  width: 2px;
  height: 6px;
  background: var(--red);
  animation: tower-scroll 1.6s ease-in-out infinite;
}

.tower-has-started .tower-scroll-hint {
  opacity: 0;
}

@keyframes tower-scroll {
  0% { transform: translateY(0); opacity: 0; }
  30% { opacity: 1; }
  100% { transform: translateY(8px); opacity: 0; }
}

.tower-noscript {
  padding: 32px max(24px, calc((100vw - var(--max)) / 2));
  color: var(--ivory);
  background: var(--graphite);
  border-top: 1px solid rgba(243, 240, 232, 0.15);
}

@media (max-width: 1100px) {
  .tower-visual-wrap {
    left: 32%;
  }

  .tower-datum {
    left: 33%;
  }

  .journey-copy {
    width: 47%;
  }

  .journey-panel h1 {
    font-size: clamp(50px, 6.6vw, 76px);
  }

  .journey-panel h2 {
    font-size: clamp(38px, 5vw, 54px);
  }
}

@media (max-width: 760px) {
  :root {
    --site-header-height: 70px;
  }

  .site-header {
    min-height: 70px;
    padding: 5px 18px;
  }

  .brand {
    width: 166px;
    min-height: 59px;
  }

  .tower-enabled .tower-journey {
    min-height: 540svh;
  }

  .tower-stage {
    min-height: 540px;
  }

  .tower-visual-wrap {
    left: 28%;
  }

  .tower-sequence-poster {
    object-position: 53% 50%;
    transform: scale(2.25);
    transform-origin: 55% 73%;
  }

  .tower-model-beacon {
    top: 24%;
    left: 53%;
  }

  .tower-grid {
    background-size: 72px 72px;
  }

  .tower-cursor-glow,
  .tower-datum-code,
  .tower-datum-label {
    display: none;
  }

  .tower-datum {
    top: 57%;
    right: 3%;
    left: 62%;
    grid-template-columns: 1fr;
    gap: 8px;
    font-size: 8px;
  }

  .journey-shell {
    width: calc(100% - 36px);
  }

  .journey-copy {
    width: 64%;
  }

  .journey-panel {
    top: 52%;
  }

  .journey-intro {
    top: 46%;
    width: 92%;
  }

  .journey-panel h1 {
    max-width: 430px;
    font-size: clamp(42px, 12.7vw, 62px);
    line-height: 0.96;
  }

  .journey-panel h2 {
    font-size: clamp(30px, 8.2vw, 43px);
    line-height: 1;
  }

  .journey-panel > p:not(.journey-kicker, .journey-index, .journey-name) {
    font-size: 14px;
    line-height: 1.5;
  }

  .journey-outcome {
    display: block;
    max-width: 300px;
    padding-top: 12px;
  }

  .journey-outcome span {
    display: block;
    margin-bottom: 6px;
  }

  .journey-outcome strong {
    font-size: 11px;
  }

  .journey-progress {
    bottom: 8px;
  }

  .journey-progress button {
    min-width: 0;
    min-height: 48px;
    padding: 12px 3px 0;
    overflow: hidden;
    color: #5e6466;
    font-size: 0;
    text-align: center;
  }

  .journey-progress button span {
    display: block;
    margin: 0;
    font-size: 9px;
  }

  .tower-skip {
    top: 12px;
    right: 18px;
    font-size: 8px;
  }

  .tower-scroll-hint {
    bottom: 72px;
    left: 18px;
    max-width: 155px;
    transform: none;
    font-size: 8px;
    line-height: 1.4;
  }
}

@media (max-width: 460px) {
  .tower-visual-wrap {
    left: 23%;
  }

  .journey-copy {
    width: 60%;
  }

  .journey-intro {
    width: 150%;
  }

  .journey-panel h1 {
    font-size: 42px;
  }

  .journey-panel h2 {
    font-size: 31px;
  }

  .journey-panel > p:not(.journey-kicker, .journey-index, .journey-name) {
    font-size: 13px;
  }

  .journey-panel .button {
    min-height: 46px;
    padding: 0 15px;
    font-size: 12px;
  }
}

@media (max-width: 360px) {
  .tower-skip,
  .tower-scroll-hint {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tower-enabled .tower-journey {
    min-height: auto;
  }

  .tower-enabled .tower-stage {
    position: relative;
    top: 0;
    height: auto;
    min-height: 100svh;
    padding: 96px 0 72px;
    overflow: hidden;
  }

  .tower-visual-wrap {
    inset: 0 0 0 45%;
    opacity: 1;
  }

  .tower-zone,
  .tower-zone.is-active,
  .tower-zone.is-complete {
    opacity: 0.72;
    filter: none;
    transition: none;
  }

  .tower-cursor-glow,
  .tower-datum,
  .tower-scroll-hint,
  .journey-progress {
    display: none;
  }

  .journey-shell {
    height: auto;
  }

  .journey-copy {
    position: relative;
    inset: auto;
    display: grid;
    width: min(680px, 82%);
    gap: 64px;
  }

  .journey-panel,
  .journey-panel.is-active,
  .journey-panel.is-before {
    position: relative;
    top: auto;
    left: auto;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
    pointer-events: auto;
  }

  .journey-panel h1,
  .journey-panel h2 {
    font-size: clamp(34px, 7vw, 62px);
  }

  .tower-model-beacon,
  .tower-final-state .tower-model-beacon {
    opacity: 1;
    animation: none;
  }

  .tower-skip {
    display: none;
  }
}