.hero-water {
    position: relative;
    width: 100%;
    height: 560px;
    overflow: hidden;
    background: #0e0b3d;
    cursor: default;
  }
  .water-bg {
    position: absolute;
    inset: -10%;
    background-image: url('../img/hero/water-bg.jpg');
    background-size: cover;
    background-position: center;
    filter: url(#waterDistort);
  }
  .koi-layer {
    position: absolute;
    inset: 0;
    z-index: 2;
  }
  .koi {
    position: absolute;
    top: 0;
    left: 0;
    width: 78px;
    height: 34px;
    margin: -17px 0 0 -39px;
    pointer-events: auto;
    opacity: 0.55;
    filter: blur(1.6px) drop-shadow(0 4px 5px rgba(10,10,40,0.15));
  }
  .koi-wake {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 46px;
    height: 14px;
    margin: -7px 0 0 -50px;
    border-radius: 50%;
    background: radial-gradient(ellipse, rgba(255,255,255,0.35), transparent 70%);
    opacity: 0.6;
  }
  .lilypad {
    position: absolute;
    z-index: 4;
    transform-origin: center;
    will-change: transform;
    transition: transform 1.1s cubic-bezier(0.34, 1.2, 0.4, 1);
  }
  .lilypad-inner {
    display: block;
    animation: bobPad var(--dur, 6s) ease-in-out infinite;
    animation-delay: var(--delay, 0s);
  }
  .lilypad svg, .lilypad img { display: block; filter: drop-shadow(0 2px 3px rgba(20,40,20,0.35)); }

  .restart-btn {
    position: absolute;
    top: 24px;
    right: 24px;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: rgba(255,255,255,0.7);
    border: 1px solid rgba(17,17,17,0.12);
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    color: #111111;
    cursor: pointer;
    backdrop-filter: blur(6px);
    transition: background 0.2s ease, transform 0.15s ease;
  }
  .restart-btn:hover { background: rgba(255,255,255,0.95); }
  .restart-btn:active { transform: scale(0.96); }
  .restart-btn svg { width: 15px; height: 15px; }

  .water-title {
    position: absolute;
    inset: 0;
    z-index: 5;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin: 0;
    padding: 0 40px;
    text-align: center;
    pointer-events: none;
  }
  .title-line {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
  }
  .letter-wrap {
    position: relative;
    display: inline-block;
    pointer-events: auto;
    transform-origin: center;
    will-change: transform;
    transition: transform 1s cubic-bezier(0.34, 1.2, 0.4, 1);
  }
  .letter-inner {
    display: inline-block;
    font-family: 'Fredoka', -apple-system, sans-serif;
    font-size: clamp(30px, 5vw, 62px);
    font-weight: 600;
    color: #082616;
    letter-spacing: -0.01em;
    text-shadow: 0 2px 2px rgba(20, 20, 50, 0.3);
    animation: bobLetter var(--dur, 5s) ease-in-out infinite;
    animation-delay: var(--delay, 0s);
  }
  .letter-wrap.space { width: 0.28em; }

  @keyframes bobLetter {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(0, -2px) rotate(0.4deg); }
  }
  @keyframes bobPad {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(0, -7px) rotate(1.5deg); }
  }

  .ripple-ring {
    position: absolute;
    z-index: 3;
    border-radius: 50%;
    border: 1.8px solid rgba(255,255,255,0.6);
    box-shadow: 0 0 2px rgba(255,255,255,0.15);
    transform: translate(-50%, -50%) scale(0.3);
    opacity: 0.72;
    pointer-events: none;
    animation: rippleOut 1100ms ease-out forwards;
  }
  @keyframes rippleOut {
    to { transform: translate(-50%, -50%) scale(1); opacity: 0; }
  }