:root {
  color-scheme: dark;
  --shore-black: #07090a;
  --shore-ink: #f4f6f5;
}

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

html {
  width: 100%;
  margin: 0;
  background: var(--shore-black);
  scroll-behavior: auto;
}

body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  overflow-x: hidden;
  background: var(--shore-black);
  color: var(--shore-ink);
  font-family: Pretendard, SUIT, "Noto Sans KR", system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shore-type-page {
  width: 100%;
  background: var(--shore-black);
}

.shore-type {
  --image-opacity: 1;
  --dark-opacity: 0;
  --vignette-opacity: 0.18;
  --copy-opacity: 0;
  --copy-y: 0px;
  --cue-opacity: 1;
  --progress-value: 0;
  --type-scale: 1;
  position: relative;
  height: 430svh;
  min-height: 240rem;
  background: var(--shore-black);
}

.shore-type__sticky {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100vh;
  height: 100svh;
  overflow: hidden;
  background: var(--shore-black);
  isolation: isolate;
}

.shore-type__image,
.shore-type__grade,
.shore-type__particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.shore-type__image {
  z-index: 0;
  display: block;
  object-fit: cover;
  object-position: 50% 50%;
  opacity: var(--image-opacity);
  transform: scale(1.001);
  user-select: none;
  will-change: opacity;
}

.shore-type__grade {
  z-index: 1;
  background:
    radial-gradient(
      ellipse 64% 72% at 57% 53%,
      transparent 30%,
      rgb(3 5 6 / calc(var(--vignette-opacity) * 0.5)) 70%,
      rgb(3 5 6 / var(--vignette-opacity)) 100%
    ),
    linear-gradient(
      180deg,
      rgb(2 4 5 / calc(var(--dark-opacity) * 0.72)) 0%,
      rgb(4 6 7 / calc(var(--dark-opacity) * 0.9)) 48%,
      rgb(7 9 10 / var(--dark-opacity)) 100%
    );
  pointer-events: none;
  will-change: background;
}

.shore-type__particles {
  z-index: 2;
  display: block;
  pointer-events: none;
}

.shore-type__copy {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  width: min(84vw, 90rem);
  color: var(--shore-ink);
  opacity: var(--copy-opacity);
  text-align: center;
  transform: translate(-50%, calc(-50% + var(--copy-y)));
  will-change: opacity, transform;
}

.shore-type__eyebrow {
  margin: 0 0 clamp(1.1rem, 2.2vh, 1.7rem);
  color: rgb(226 231 230 / 62%);
  font-size: clamp(0.56rem, 0.52vw, 0.7rem);
  font-weight: 620;
  letter-spacing: 0.28em;
}

.shore-type__copy h1 {
  margin: 0;
  color: #f7f9f8;
  font-size: clamp(4.8rem, 11.6vw, 12rem);
  font-weight: 760;
  letter-spacing: 0.095em;
  line-height: 0.82;
  text-indent: 0.095em;
  text-shadow: 0 0 2.4rem rgb(184 215 218 / 8%);
  transform: scale(var(--type-scale));
  transform-origin: center;
}

.shore-type__statement {
  margin: clamp(2.2rem, 4.8vh, 3.8rem) 0 0;
  color: rgb(238 242 241 / 82%);
  font-size: clamp(1.05rem, 1.65vw, 1.72rem);
  font-weight: 430;
  letter-spacing: -0.025em;
  line-height: 1.62;
}

.shore-type__cue {
  position: absolute;
  z-index: 4;
  right: clamp(1.25rem, 4vw, 4rem);
  bottom: clamp(1.4rem, 4vh, 3.2rem);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin: 0;
  color: rgb(241 244 243 / 68%);
  font-size: 0.57rem;
  font-weight: 650;
  letter-spacing: 0.22em;
  opacity: var(--cue-opacity);
}

.shore-type__cue i {
  position: relative;
  display: block;
  width: 2.8rem;
  height: 1px;
  overflow: hidden;
  background: rgb(255 255 255 / 22%);
}

.shore-type__cue i::after {
  position: absolute;
  inset: 0;
  background: #fff;
  content: "";
  transform: translateX(-100%);
  animation: shore-cue 2.4s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}

.shore-type__progress {
  position: absolute;
  z-index: 4;
  bottom: clamp(1.4rem, 4vh, 3.2rem);
  left: clamp(1.25rem, 4vw, 4rem);
  display: grid;
  width: min(15rem, 26vw);
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.75rem;
  color: rgb(240 243 242 / 45%);
  font-size: 0.5rem;
  font-weight: 650;
  letter-spacing: 0.17em;
}

.shore-type__progress i {
  display: block;
  height: 1px;
  overflow: hidden;
  background: rgb(255 255 255 / 14%);
}

.shore-type__progress b {
  display: block;
  width: 100%;
  height: 100%;
  background: rgb(240 244 243 / 74%);
  transform: scaleX(var(--progress-value));
  transform-origin: left center;
}

.particle-tuner {
  position: absolute;
  z-index: 6;
  top: clamp(6.5rem, 13vh, 8rem);
  right: clamp(1rem, 3.3vw, 4rem);
  width: min(19rem, calc(100vw - 2rem));
  border: 1px solid rgb(235 242 241 / 16%);
  background: rgb(5 8 9 / 76%);
  box-shadow: 0 1.4rem 4rem rgb(0 0 0 / 25%);
  color: #eef2f1;
  font-variant-numeric: tabular-nums;
  -webkit-backdrop-filter: blur(18px) saturate(112%);
  backdrop-filter: blur(18px) saturate(112%);
}

.particle-tuner summary {
  display: flex;
  min-height: 2.85rem;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.9rem;
  color: rgb(235 241 240 / 68%);
  cursor: pointer;
  font-size: 0.55rem;
  font-weight: 680;
  letter-spacing: 0.18em;
  list-style: none;
  user-select: none;
}

.particle-tuner summary::-webkit-details-marker {
  display: none;
}

.particle-tuner summary::before {
  width: 0.38rem;
  height: 0.38rem;
  margin-right: 0.55rem;
  border-right: 1px solid currentcolor;
  border-bottom: 1px solid currentcolor;
  content: "";
  transform: rotate(45deg) translateY(-1px);
  transition: transform 180ms ease;
}

.particle-tuner:not([open]) summary::before {
  transform: rotate(-45deg) translate(-1px, -1px);
}

.particle-tuner summary span {
  margin-right: auto;
}

.particle-tuner summary b {
  color: rgb(240 245 244 / 88%);
  font-size: 0.56rem;
  font-weight: 650;
  letter-spacing: 0.1em;
}

.particle-tuner__body {
  display: grid;
  gap: 0.92rem;
  padding: 0.85rem 0.9rem 1rem;
  border-top: 1px solid rgb(235 242 241 / 12%);
}

.particle-tuner__control {
  display: grid;
  gap: 0.38rem;
}

.particle-tuner__control > span {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgb(236 241 240 / 66%);
  font-size: 0.65rem;
  font-weight: 560;
  letter-spacing: -0.01em;
}

.particle-tuner__control output {
  color: #f5f7f6;
  font-size: 0.62rem;
  font-weight: 660;
}

.particle-tuner__control input[type="range"] {
  width: 100%;
  height: 0.95rem;
  margin: 0;
  accent-color: #dce5e4;
  cursor: ew-resize;
}

.particle-tuner__control small {
  display: flex;
  justify-content: space-between;
  color: rgb(235 241 240 / 34%);
  font-size: 0.47rem;
  font-style: normal;
}

.particle-tuner__control small i {
  font-style: normal;
}

.particle-tuner button {
  min-height: 2.15rem;
  border: 1px solid rgb(235 242 241 / 16%);
  background: rgb(235 242 241 / 5%);
  color: rgb(239 243 242 / 64%);
  font: inherit;
  font-size: 0.62rem;
  cursor: pointer;
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.particle-tuner button:hover,
.particle-tuner button:focus-visible {
  border-color: rgb(235 242 241 / 38%);
  background: rgb(235 242 241 / 10%);
  color: #fff;
  outline: none;
}

@keyframes shore-cue {
  0% { transform: translateX(-100%); }
  48%, 58% { transform: translateX(0); }
  100% { transform: translateX(100%); }
}

@media (max-width: 48rem) {
  .shore-type {
    height: 420svh;
    min-height: 220rem;
  }

  .shore-type__image {
    object-position: 66% 50%;
  }

  .shore-type__grade {
    background:
      radial-gradient(
        ellipse 88% 60% at 65% 56%,
        transparent 24%,
        rgb(3 5 6 / calc(var(--vignette-opacity) * 0.58)) 72%,
        rgb(3 5 6 / var(--vignette-opacity)) 100%
      ),
      linear-gradient(
        180deg,
        rgb(2 4 5 / calc(var(--dark-opacity) * 0.78)) 0%,
        rgb(4 6 7 / calc(var(--dark-opacity) * 0.92)) 48%,
        rgb(7 9 10 / var(--dark-opacity)) 100%
      );
  }

  .shore-type__copy {
    width: calc(100% - 2rem);
  }

  .shore-type__eyebrow {
    margin-bottom: 1.2rem;
    font-size: 0.52rem;
    letter-spacing: 0.19em;
  }

  .shore-type__copy h1 {
    font-size: clamp(3.35rem, 15.2vw, 5.2rem);
    letter-spacing: 0.055em;
    text-indent: 0.055em;
  }

  .shore-type__statement {
    margin-top: 2.25rem;
    font-size: clamp(1rem, 4.5vw, 1.18rem);
    line-height: 1.66;
  }

  .shore-type__cue {
    display: none;
  }

  .shore-type__progress {
    display: none;
  }

  .particle-tuner {
    top: auto;
    right: 1rem;
    bottom: calc(1rem + env(safe-area-inset-bottom, 0px));
    left: 1rem;
    width: auto;
    max-height: calc(100svh - 8rem);
    overflow-y: auto;
  }

  .particle-tuner__body {
    gap: 0.72rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .shore-type {
    height: 200svh;
    min-height: 90rem;
  }

  .shore-type__cue i::after {
    animation: none;
    transform: none;
  }
}