:root {
  --ink: #17314a;
  --ocean: #0aaee9;
  --ocean-deep: #0274c9;
  --gold: #ffd45c;
  --danger: #7b2bd3;
  --paper: rgba(255, 255, 255, 0.88);
}

* {
  box-sizing: border-box;
}

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

body {
  display: grid;
  min-height: 100vh;
  place-items: center;
  overflow: hidden;
  background: #071929;
  color: var(--ink);
  font-family: "Trebuchet MS", "Segoe UI", Arial, sans-serif;
}

button {
  font: inherit;
}

.phone-stage {
  position: relative;
  width: min(100vw, calc(100vh * 9 / 16));
  height: min(100vh, calc(100vw * 16 / 9));
  aspect-ratio: 9 / 16;
  overflow: hidden;
  background: #8edaf4;
  box-shadow: 0 0 42px rgba(0, 0, 0, 0.45);
  isolation: isolate;
}

.screen {
  position: absolute;
  inset: 0;
  display: none;
  overflow: hidden;
}

.screen.is-active {
  display: block;
}

.full-art,
.beach-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.primary-action {
  border: 0;
  border-radius: 999px;
  padding: clamp(10px, 2.2vh, 18px) clamp(20px, 5vw, 36px);
  color: #2b1600;
  font-weight: 900;
  letter-spacing: 0;
  background: linear-gradient(#fff6a8, #ffbf2f 55%, #f28b16);
  box-shadow: 0 8px 0 #9c4f0f, 0 16px 24px rgba(0, 0, 0, 0.28);
  cursor: pointer;
}

.primary-action:active {
  transform: translateY(4px);
  box-shadow: 0 4px 0 #9c4f0f, 0 10px 18px rgba(0, 0, 0, 0.3);
}

.start-action {
  position: absolute;
  left: 50%;
  bottom: 4.5%;
  z-index: 2;
  transform: translateX(-50%);
  font-size: clamp(18px, 3vh, 28px);
  white-space: nowrap;
}

.start-action:active {
  transform: translate(-50%, 4px);
}

.rules-screen {
  z-index: 10;
  background: #057ad8;
}

.close-rules {
  position: absolute;
  top: 1.8%;
  right: 3.5%;
  z-index: 3;
  display: grid;
  width: clamp(42px, 11vw, 62px);
  aspect-ratio: 1;
  place-items: center;
  border: 3px solid #fff;
  border-radius: 50%;
  color: #fff;
  background: rgba(8, 43, 99, 0.82);
  box-shadow: 0 5px 12px rgba(0, 30, 76, 0.35);
  cursor: pointer;
  font-size: clamp(22px, 4.5vh, 34px);
  font-weight: 900;
  line-height: 1;
}

.close-rules:active {
  transform: translateY(3px);
}

.hud {
  position: absolute;
  top: 1.3%;
  left: 4%;
  right: 4%;
  z-index: 5;
  display: grid;
  grid-template-columns: 1fr 0.78fr;
  gap: 10px;
  align-items: center;
}

.hearts {
  display: flex;
  gap: clamp(3px, 0.9vw, 7px);
  align-items: center;
  min-width: 0;
}

.heart {
  width: clamp(25px, 7.8vw, 48px);
  aspect-ratio: 1;
  object-fit: contain;
  filter: drop-shadow(0 3px 3px rgba(68, 33, 0, 0.35));
  transition: opacity 180ms ease, filter 180ms ease, transform 180ms ease;
}

.heart.is-lost {
  opacity: 0.24;
  filter: grayscale(1);
  transform: scale(0.88);
}

.timer-wrap {
  position: relative;
  height: clamp(20px, 4vh, 34px);
  overflow: hidden;
  border: 3px solid rgba(255, 255, 255, 0.95);
  border-radius: 999px;
  background: rgba(10, 93, 150, 0.32);
  box-shadow: 0 3px 8px rgba(0, 64, 118, 0.26);
}

.timer-bar {
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #48d9ff, #fff176, #ff8c42);
  transform-origin: left center;
}

.timer-text {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: #062946;
  font-size: clamp(12px, 2.4vh, 20px);
  font-weight: 900;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.85);
}

.prompt-panel {
  position: absolute;
  top: 6.6%;
  left: 4%;
  right: 4%;
  z-index: 5;
  text-align: center;
}

.prompt-panel h1 {
  margin: 0 auto clamp(8px, 1.4vh, 14px);
  padding: clamp(8px, 1.4vh, 13px) clamp(12px, 3vw, 22px);
  border: 3px solid rgba(255, 255, 255, 0.95);
  border-radius: 8px;
  background: rgba(8, 97, 169, 0.82);
  color: #fff;
  font-size: clamp(17px, 2.65vh, 25px);
  line-height: 1.06;
  text-shadow: 0 2px 0 rgba(0, 39, 80, 0.55);
}

.verse-text {
  margin: 0;
  padding: clamp(10px, 1.8vh, 18px) clamp(12px, 3vw, 22px);
  border: 3px solid rgba(7, 87, 131, 0.55);
  border-radius: 8px;
  background: var(--paper);
  color: #18314d;
  font-size: clamp(16px, 2.45vh, 24px);
  font-weight: 900;
  line-height: 1.15;
  box-shadow: 0 8px 18px rgba(0, 67, 111, 0.18);
}

.blank {
  display: inline-block;
  min-width: 5ch;
  height: 0.78em;
  border-bottom: 4px solid var(--ocean-deep);
  color: var(--ocean-deep);
  vertical-align: baseline;
}

.verse-ref {
  margin: clamp(5px, 0.9vh, 8px) 0 0;
  color: #fff;
  font-size: clamp(12px, 1.75vh, 17px);
  font-weight: 900;
  text-shadow: 0 2px 4px rgba(0, 31, 64, 0.7);
}

.battlefield {
  position: absolute;
  inset: 0;
  z-index: 2;
}

.character {
  position: absolute;
  user-select: none;
  pointer-events: none;
}

.castle {
  left: -5%;
  bottom: 21%;
  z-index: 2;
  width: 62%;
  filter: drop-shadow(0 8px 10px rgba(67, 41, 9, 0.4));
}

.devil {
  left: 4%;
  bottom: 18%;
  z-index: 3;
  width: 30%;
  filter: drop-shadow(0 7px 7px rgba(48, 15, 4, 0.38));
}

.milton {
  right: 3%;
  bottom: 12.5%;
  z-index: 4;
  width: 31%;
  filter: drop-shadow(0 7px 8px rgba(18, 48, 72, 0.34));
}

.bird {
  right: 9.5%;
  bottom: 45.5%;
  z-index: 4;
  width: 25%;
  animation: hover 2.2s ease-in-out infinite;
  filter: drop-shadow(0 0 12px rgba(255, 230, 125, 0.75));
}

.wave {
  right: -72%;
  bottom: 17%;
  z-index: 6;
  width: 76%;
  opacity: 0;
  transform: translateX(0) scale(1.02);
  filter: drop-shadow(0 10px 18px rgba(4, 73, 110, 0.42));
}

.battlefield.wave-attack .wave {
  animation: waveCrash 2.7s cubic-bezier(0.16, 0.9, 0.25, 1) forwards;
  opacity: 1;
}

.battlefield.wave-attack .castle,
.battlefield.wave-attack .devil {
  animation: sweptAway 1.1s ease-in forwards;
  animation-delay: 1.55s;
}

.energy-panel {
  position: absolute;
  left: 6%;
  right: 6%;
  bottom: 19.3%;
  z-index: 5;
}

.energy-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 5px;
  color: #fff;
  font-size: clamp(12px, 1.9vh, 18px);
  font-weight: 900;
  text-shadow: 0 2px 3px rgba(0, 42, 78, 0.72);
}

.energy-track {
  height: clamp(17px, 3.2vh, 28px);
  overflow: hidden;
  border: 3px solid #fff;
  border-radius: 999px;
  background: rgba(15, 83, 130, 0.42);
  box-shadow: 0 4px 8px rgba(0, 57, 93, 0.28);
}

.energy-fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background:
    linear-gradient(90deg, #17dbff, #2f84ff 45%, #ffd769),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.28) 0 8px, transparent 8px 16px);
  box-shadow: 0 0 18px rgba(78, 223, 255, 0.85);
  transition: width 260ms ease;
}

.options {
  position: absolute;
  left: 5%;
  right: 5%;
  bottom: 3.2%;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(8px, 1.5vh, 13px);
}

.option {
  position: relative;
  min-height: clamp(54px, 8.6vh, 82px);
  border: 0;
  border-radius: 999px;
  padding: 10px 12px;
  color: #114169;
  font-size: clamp(17px, 2.55vh, 25px);
  font-weight: 900;
  line-height: 1;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.85);
  background:
    radial-gradient(circle at 20% 32%, #fff 0 22%, transparent 23%),
    radial-gradient(circle at 43% 24%, #fff 0 26%, transparent 27%),
    radial-gradient(circle at 69% 35%, #fff 0 24%, transparent 25%),
    radial-gradient(circle at 83% 56%, #f4fbff 0 20%, transparent 21%),
    linear-gradient(#ffffff, #dff3ff);
  box-shadow: 0 7px 0 #86bdd7, 0 14px 18px rgba(0, 58, 101, 0.25);
  cursor: pointer;
}

.option:disabled {
  cursor: default;
}

.option:active:not(:disabled) {
  transform: translateY(3px);
  box-shadow: 0 4px 0 #86bdd7, 0 9px 12px rgba(0, 58, 101, 0.26);
}

.option.is-correct {
  color: #104c25;
  background:
    radial-gradient(circle at 20% 32%, #fffce0 0 22%, transparent 23%),
    radial-gradient(circle at 43% 24%, #fffce0 0 26%, transparent 27%),
    radial-gradient(circle at 69% 35%, #fffce0 0 24%, transparent 25%),
    radial-gradient(circle at 83% 56%, #fff8bf 0 20%, transparent 21%),
    linear-gradient(#fffbd0, #bff9c8);
}

.option.is-wrong {
  color: #6b1742;
  background:
    radial-gradient(circle at 20% 32%, #fff 0 22%, transparent 23%),
    radial-gradient(circle at 43% 24%, #fff 0 26%, transparent 27%),
    radial-gradient(circle at 69% 35%, #fff 0 24%, transparent 25%),
    linear-gradient(#fff3fa, #ffd2e4);
}

.video-screen {
  z-index: 20;
  background: #000;
}

.story-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.result-screen {
  z-index: 21;
}

.result-title {
  position: absolute;
  left: 50%;
  z-index: 2;
  width: min(75%, 520px);
  max-height: 25%;
  object-fit: contain;
  pointer-events: none;
}

.victory-title {
  top: 36%;
  transform: translate(-50%, -50%);
}

.defeat-title {
  top: 49%;
  transform: translate(-50%, -50%);
}

.play-again {
  position: absolute;
  left: 50%;
  bottom: 5%;
  z-index: 3;
  transform: translateX(-50%);
  font-size: clamp(18px, 2.6vh, 28px);
  white-space: nowrap;
}

.play-again:active {
  transform: translate(-50%, 4px);
}

@keyframes hover {
  0%,
  100% {
    transform: translateY(-2%);
  }
  50% {
    transform: translateY(6%);
  }
}

@keyframes waveCrash {
  0% {
    right: -76%;
    opacity: 0;
    transform: scale(0.92) rotate(0deg);
  }
  15% {
    opacity: 1;
  }
  72% {
    right: 36%;
    opacity: 1;
    transform: scale(1.06) rotate(-2deg);
  }
  100% {
    right: 68%;
    opacity: 0.95;
    transform: scale(1.1) rotate(-4deg);
  }
}

@keyframes sweptAway {
  to {
    transform: translateX(-150%) rotate(-8deg);
    opacity: 0;
  }
}

@media (max-height: 680px) {
  .prompt-panel {
    top: 6%;
  }

  .verse-text {
    font-size: clamp(14px, 2.18vh, 20px);
  }

  .castle {
    width: 58%;
  }

  .milton {
    width: 29%;
  }
}