*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

*::-webkit-scrollbar {
  width: 0;
  height: 0;
  display: none;
  background: transparent;
}

:root {
  --bg: #000000;
  --green: #256b47;
  --green-bright: #3fa06f;
  --green-glow: rgba(63, 160, 111, 0.18);
  --btn-border: #3fa06f;
  --btn-bg: #050d09;
  --btn-text: #a8d4bc;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: var(--bg);
  color: var(--green);
  font-family: "Space Grotesk", system-ui, sans-serif;
  overflow-x: hidden;
}

.splash {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
  position: relative;
  isolation: isolate;
  will-change: transform;
}

.splash__workspace {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 12;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--btn-text);
  text-decoration: none;
  border: 1px solid var(--btn-border);
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: rgba(5, 13, 9, 0.65);
  backdrop-filter: blur(6px);
  transition: color 0.15s, border-color 0.15s, opacity 0.15s;
}

.splash__workspace:hover {
  color: var(--green-bright);
  border-color: var(--green-bright);
}

.splash__vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(
    ellipse 75% 60% at 50% 45%,
    var(--green-glow) 0%,
    transparent 65%
  );
  opacity: 0;
  transition: opacity 1.35s ease-out;
}

.splash__mark {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 1s cubic-bezier(0.22, 1, 0.36, 1);
}

.splash__mark-greeting {
  margin: 0 0 0.7rem;
  padding: 0;
  font-size: clamp(0.82rem, 2.6vw, 1.05rem);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--green-bright);
  text-align: center;
  text-transform: none;
}

.splash__mark--in {
  opacity: 1;
}

.splash__mark--out {
  opacity: 0;
  transition: opacity 1.05s cubic-bezier(0.4, 0, 0.2, 1);
}

.splash__mark-img {
  display: block;
  width: min(34vmin, 200px);
  height: auto;
}

.splash__title-spotlight {
  --tx: 0px;
  --ty: 0px;
  position: fixed;
  left: 0;
  top: 0;
  width: clamp(48px, 11vmin, 92px);
  height: clamp(48px, 11vmin, 92px);
  margin: 0;
  border-radius: 50%;
  pointer-events: none;
  z-index: 7;
  opacity: 0;
  transform: translate(-50%, -50%) translate(var(--tx), var(--ty));
  transition: opacity 0.4s ease;
  background: radial-gradient(
    circle,
    rgba(63, 160, 111, 0.42) 0%,
    rgba(63, 160, 111, 0.12) 42%,
    transparent 68%
  );
  mix-blend-mode: screen;
  filter: blur(0.5px);
  will-change: transform, opacity;
}

.splash--glow .splash__vignette {
  opacity: 0.5;
}

.splash__bg-hits {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  overflow: visible;
  opacity: 1;
}

.splash__bg-hit {
  position: absolute;
  width: 1px;
  height: 1px;
  left: 0;
  top: 0;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.splash__bg-hit::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(46vmin, 300px);
  height: min(46vmin, 300px);
  margin: 0;
  transform: translate(-50%, -50%) scale(0.12);
  border-radius: 50%;
  opacity: 0;
  background: radial-gradient(
    circle,
    rgba(63, 160, 111, 0.22) 0%,
    rgba(63, 160, 111, 0.07) 45%,
    transparent 72%
  );
  mix-blend-mode: screen;
  animation: splash-bg-hit 2.35s cubic-bezier(0.18, 0.55, 0.12, 1) forwards;
}

@keyframes splash-bg-hit {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.35);
    filter: brightness(1.12);
  }
  12% {
    opacity: 0.85;
    transform: translate(-50%, -50%) scale(1);
    filter: brightness(1.06);
  }
  55% {
    opacity: 0.45;
    transform: translate(-50%, -50%) scale(1.06);
    filter: brightness(0.98);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.12);
    filter: brightness(0.88);
  }
}

.splash__title {
  position: relative;
  z-index: 6;
  margin: 0 0 2.75rem;
  padding: 0;
  font-size: clamp(1.85rem, 7.5vw, 3.85rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.08;
  text-transform: lowercase;
  text-align: center;
}

.splash__title .splash__letter {
  vertical-align: top;
}

.splash__title--static {
  color: var(--green);
}

.splash__letter {
  display: inline-block;
  color: var(--green);
  transform-origin: 50% 50%;
  will-change: transform, opacity;
}

.splash__letter--dot {
  color: var(--green-bright);
}

.splash__letter--float {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 8;
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
  margin: 0;
  padding: 0;
  font-size: clamp(1.85rem, 7.5vw, 3.85rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.08;
  text-transform: lowercase;
  font-family: "Space Grotesk", system-ui, sans-serif;
  color: var(--green);
  will-change: transform, opacity, filter;
}

.splash__letter--float.splash__letter--dot {
  color: var(--green-bright);
}

.dive-btn {
  position: relative;
  z-index: 9;
  appearance: none;
  margin: 0;
  padding: 0;
  border: none;
  cursor: pointer;
  font: inherit;
  background: transparent;
  border-radius: 0;
  opacity: 0;
  transform: translate3d(0, 88px, 0);
  transition:
    opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
}

.dive-btn.dive-btn--visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  pointer-events: auto;
}

.dive-btn__label {
  display: block;
  padding: 1rem 2.75rem;
  font-size: clamp(0.8rem, 2.4vw, 0.95rem);
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--btn-text);
  background: var(--btn-bg);
  border: 2px solid var(--btn-border);
  border-radius: 0;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.5);
  transition:
    color 0.58s ease,
    background-color 0.58s ease,
    border-color 0.58s ease,
    transform 0.35s ease,
    box-shadow 0.58s ease;
}

.dive-btn:hover .dive-btn__label {
  color: #c5e2d4;
  background: #0f2419;
  border-color: rgba(63, 160, 111, 0.55);
  box-shadow:
    0 0 14px rgba(63, 160, 111, 0.12),
    0 0 0 1px rgba(63, 160, 111, 0.35);
}

.dive-btn:active .dive-btn__label {
  transform: scale(0.98);
}

.dive-btn:focus-visible {
  outline: 2px solid var(--green-bright);
  outline-offset: 4px;
}

.splash__barrier {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5px;
  z-index: 8;
  pointer-events: none;
  overflow: visible;
  opacity: 0;
  transition: opacity 0.28s ease;
}

.splash.splash--dive .splash__barrier {
  opacity: 1;
}

.splash__barrier-seam {
  position: absolute;
  left: 10%;
  right: 10%;
  bottom: 0;
  height: 1px;
  z-index: 6;
  background: linear-gradient(
    90deg,
    transparent,
    var(--green-bright) 12%,
    var(--green-bright) 88%,
    transparent
  );
  border-radius: 999px;
  box-shadow:
    0 0 6px rgba(63, 160, 111, 0.85),
    0 0 12px rgba(63, 160, 111, 0.2);
  transition:
    transform 0.55s cubic-bezier(0.34, 0.82, 0.26, 1),
    opacity 0.4s ease,
    filter 0.45s ease;
}

.splash__barrier--exit-pulse .splash__barrier-seam {
  transform: scaleX(1.15) scaleY(2.2);
  opacity: 0.5;
  filter: brightness(1.15);
}

.splash__barrier-door {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50.5%;
  z-index: 2;
  background: linear-gradient(
    180deg,
    rgba(63, 160, 111, 0.42) 0%,
    rgba(20, 56, 38, 0.88) 55%,
    rgba(0, 0, 0, 0.92) 100%
  );
  transition:
    transform 0.58s cubic-bezier(0.28, 0.82, 0.32, 1),
    box-shadow 0.45s ease,
    opacity 0.35s ease;
  box-shadow: inset 0 0 0 1px rgba(63, 160, 111, 0.35);
}

.splash__barrier-door--left {
  left: 0;
  transform-origin: 0% 100%;
  border-right: 1px solid rgba(63, 160, 111, 0.42);
  border-radius: 0 1px 0 0;
  transform: translateX(11%);
}

.splash__barrier-door--right {
  right: 0;
  transform-origin: 100% 100%;
  border-left: 1px solid rgba(63, 160, 111, 0.42);
  border-radius: 1px 0 0 0;
  transform: translateX(-11%);
}

.splash__barrier--doors-open .splash__barrier-door--left {
  transform: translateX(-102%);
}

.splash__barrier--doors-open .splash__barrier-door--right {
  transform: translateX(102%);
}

.splash.splash--dive .splash__title .splash__letter {
  position: relative;
  z-index: 26;
  transform-origin: center center;
}

.splash.splash--dive .dive-btn {
  position: relative;
  z-index: 18;
}

.splash--dive .dive-btn.dive-btn--busy .dive-btn__label {
  transform: none;
  transition:
    color 0.58s ease,
    background-color 0.58s ease,
    border-color 0.58s ease,
    box-shadow 0.58s ease;
}

body.dive-lock {
  overflow: hidden;
}

.scroll-dive {
  --dive-h: 100vh;
  --dive-spacer-slabs: 3;
  --dive-duration: 1.05s;
  --dive-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  position: fixed;
  inset: 0;
  overflow: hidden;
  background: var(--bg);
  overscroll-behavior: none;
}

/* Same mood as .splash__vignette — stays visible when splash panel is hidden or scrolled away */
.scroll-dive::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(
    ellipse 75% 60% at 50% 45%,
    var(--green-glow) 0%,
    transparent 65%
  );
  opacity: 0;
}

.scroll-dive.scroll-dive--dive::before {
  opacity: 0.5;
}

/* Underlay replaces the splash vignette — never both at once (was reading as “extra green” then “normal”) */
.scroll-dive.scroll-dive--dive .splash--glow .splash__vignette {
  opacity: 0;
  transition: opacity 0s;
}

.scroll-dive.scroll-dive--falling {
  overflow: visible;
}

@supports (height: 100dvh) {
  .scroll-dive {
    --dive-h: 100dvh;
  }
}

.scroll-dive__strip {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  width: 100%;
  transform: translate3d(0, 0, 0);
  transition: transform var(--dive-duration) var(--dive-ease);
  will-change: transform;
  backface-visibility: hidden;
}

.scroll-dive__strip.scroll-dive__strip--auth {
  transform: translate3d(
    0,
    calc(-1 * (1 + var(--dive-spacer-slabs)) * var(--dive-h)),
    0
  );
}

.scroll-dive__panel {
  flex: 0 0 var(--dive-h);
  height: var(--dive-h);
  min-height: var(--dive-h);
  width: 100%;
  position: relative;
  backface-visibility: hidden;
}

.scroll-dive__panel--splash {
  overflow: hidden;
}

.scroll-dive__panel--splash.scroll-dive__panel--splash-fall {
  overflow: visible;
}

.scroll-dive__panel--dive-filler {
  flex: 0 0 calc(var(--dive-spacer-slabs) * var(--dive-h));
  height: calc(var(--dive-spacer-slabs) * var(--dive-h));
  min-height: calc(var(--dive-spacer-slabs) * var(--dive-h));
  background: transparent;
}

.scroll-dive__panel--auth {
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.scroll-dive__panel--splash .splash {
  min-height: 100%;
}

.scroll-dive__panel--auth .auth-shell {
  min-height: 100%;
}

.scroll-dive__panel--splash[aria-hidden="true"] {
  visibility: hidden;
  pointer-events: none;
}

.dive-btn.dive-btn--busy {
  pointer-events: none;
}

.dive-btn.dive-btn--busy .dive-btn__label {
  transform: none;
  transition:
    color 0.58s ease,
    background-color 0.58s ease,
    border-color 0.58s ease,
    box-shadow 0.58s ease;
}