body {
      background:
        radial-gradient(circle at 10% -10%, rgba(255, 255, 255, 0.9), transparent 35%),
        radial-gradient(circle at 90% -20%, rgba(205, 226, 255, 0.8), transparent 38%),
        linear-gradient(180deg, #eff5ff 0%, #eef2f7 55%, #ecf2f8 100%);
      font-family: "Capriola", sans-serif;
      text-align: center;
      color: #0f172a;
      min-height: 100vh;
      overflow: none;
    }
    .capriola-regular {
      font-family: "Capriola", sans-serif;
      font-weight: 800;
      font-style: normal;
    }

    .navbar {
      display: flex;
      justify-content: center;
      align-items: center;
      border-bottom: 1px solid rgba(148, 163, 184, 0.35);
      padding: 0.65rem 0;
      background: rgba(255, 255, 255, 0.84);
      backdrop-filter: blur(10px);
      box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
    }

    .navbar h1 {
      display: flex;
      align-items: center;
      font-weight: 700;
    }

    .navbar .fs-5 {
      color: #334155;
      background: rgba(15, 23, 42, 0.06);
      border: 1px solid rgba(15, 23, 42, 0.08);
      padding: 0.3rem 0.75rem !important;
      border-radius: 999px;
      font-size: 1rem !important;
    }

    .nav-meta {
      display: flex;
      align-items: center;
      gap: 0.45rem;
    }

    .help-btn {
      width: 2rem;
      height: 2rem;
      border-radius: 999px;
      border: 1px solid rgba(15, 23, 42, 0.18);
      background: rgba(255, 255, 255, 0.92);
      color: #0f172a;
      font-weight: 800;
      line-height: 1;
      box-shadow: 0 4px 12px rgba(15, 23, 42, 0.1);
    }

    .help-btn:hover {
      background: #f1f5f9;
    }

    #logo {
      height: 40px;
      margin-right: 10px;
    }

    .game-shell {
      max-width: 780px;
      margin-top: 1.2rem;
      margin-bottom: 6rem;
      background: rgba(255, 255, 255, 0.76);
      border: 1px solid rgba(148, 163, 184, 0.3);
      border-radius: 20px;
      box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
      padding: 1rem 1rem 1.2rem;
    }

    .chain-row {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 10px;
      margin: 0.5rem 0;
      width: 100%;
    }

    .word-row {
      display: flex;
      justify-content: center;
      position: relative;
      z-index: 2;
      transition: transform 0.2s ease;
    }

    .word-row.active {
      transform: translateY(-1px);
    }

    .letter-box {
      width: 40px;
      height: 50px;
      border: 2px solid #bfccdb;
      margin: 0 3px;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 1.3rem;
      font-weight: 600;
      text-transform: uppercase;
      border-radius: 10px;
      background: #f7fafc;
      transition: background 0.2s, border-color 0.2s, transform 0.15s ease, box-shadow 0.2s ease;
    }

    .active .letter-box {
      background: #ffffff;
    }

    .revealed {
      background: #dff0d8;
      border-color: #28a745;
    }

    .flash-red {
      background: #f8d7da !important;
      border-color: #dc3545 !important;
    }

    .filled {
      border-color: #0ea5e9;
      box-shadow: inset 0 -3px 0 rgba(14, 165, 233, 0.24);
    }

    .awaiting-input {
      border-color: #2563eb !important;
      box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
      animation: await-pulse 1.2s ease-in-out infinite;
      transform: translateY(-1px);
    }

    @keyframes await-pulse {
      0%, 100% { box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.16); }
      50% { box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.24); }
    }

    .connector {
      width: 70px;
      height: 60px;
      opacity: 0;
      transition: opacity 0.4s ease;
    }

    .connector svg {
      width: 70px;
      height: 60px;
    }

    .connector.left {
      order: -1;
      transform: scaleX(-1);
      margin-right:-20px;
    }
    .connector.right {
      margin-left:-20px;
    }
    .connector.active {
      opacity: 1;
    }

    .connector path {
      stroke-dasharray: 150;
      stroke-dashoffset: 150;
      animation: drawArrow 0.8s forwards ease;
    }
    .left-row,
    .right-row{
        padding: 0;
    }
    @keyframes drawArrow {
      to {
        stroke-dashoffset: 0;
      }
    }

    .hud {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      margin-top: 0.5rem;
      margin-bottom: 1.3rem;
      padding: 0.38rem 0.75rem;
      border-radius: 999px;
      border: 1px solid rgba(148, 163, 184, 0.35);
      background: rgba(255, 255, 255, 0.78);
      box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
    }

    .hud-finished {
      opacity: 0.5;
    }

    .hud-label {
      font-size: 0.82rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: #475569;
    }

    .hud-divider {
      width: 1px;
      height: 1.1rem;
      background: rgba(100, 116, 139, 0.45);
      margin: 0 0.15rem;
    }

    .lives {
      font-size: 1.8rem;
      line-height: 1;
      color: #f97316;
    }

    .streak-value {
      font-size: 1.05rem;
      font-weight: 700;
      color: #0f766e;
      min-width: 1.25rem;
      text-align: center;
    }

    .help-screen {
      position: fixed;
      inset: 0;
      background: rgba(2, 6, 23, 0.55);
      display: flex;
      justify-content: center;
      align-items: center;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.25s ease;
      z-index: 10001;
    }

    .help-screen.show {
      opacity: 1;
      pointer-events: auto;
    }

    .help-card {
      width: min(92vw, 540px);
      background: linear-gradient(180deg, #ffffff, #f8fbff);
      border: 1px solid rgba(148, 163, 184, 0.35);
      border-radius: 18px;
      box-shadow: 0 24px 60px rgba(2, 6, 23, 0.24);
      padding: 1rem 1rem 0.95rem;
      text-align: left;
    }

    .help-card h2 {
      margin: 0 0 0.4rem;
      font-size: 1.45rem;
    }

    .help-card p {
      margin: 0 0 0.6rem;
      color: #334155;
    }

    .help-list {
      margin: 0 0 0.85rem 1.1rem;
      padding: 0;
      color: #334155;
      font-size: 0.95rem;
    }

    .help-list li {
      margin: 0.25rem 0;
    }

    .lose-fill-pop {
      animation: lose-fill-pop 0.22s ease;
    }

    @keyframes lose-fill-pop {
      0% { transform: scale(0.82); opacity: 0.35; }
      100% { transform: scale(1); opacity: 1; }
    }

    .share-results {
      display: none;
      margin-top: 1rem;
      padding: 0.75rem;
      border-radius: 14px;
      background: rgba(241, 245, 249, 0.72);
      border: 1px solid rgba(148, 163, 184, 0.25);
    }

    .btn {
      border-radius: 10px;
      font-weight: 700;
      letter-spacing: 0.01em;
      box-shadow: 0 8px 18px rgba(15, 23, 42, 0.14);
    }

    input {
      position: absolute;
      opacity: 0;
      pointer-events: none;
    }

    .load-error {
      margin: 1.2rem auto;
      max-width: 28rem;
      padding: 0.9rem 1rem;
      border-radius: 12px;
      border: 1px solid rgba(220, 38, 38, 0.35);
      color: #991b1b;
      background: rgba(254, 242, 242, 0.85);
    }

    #puzzleArea{
      position: relative;
      min-height: 45em;
      display: flex;
      flex-direction: column;
      align-items: center;
      width: 100%;
    }

    #puzzleViewport{
      max-height: 17em; 
      overflow-y: auto;
      overflow-x: hidden;
      position: relative;
      scroll-behavior: smooth;
      border-radius: 14px;
      padding: 0.5rem 0.25rem 0.4rem;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.82) 0%, rgba(248, 251, 255, 0.8) 100%);
      border: 1px solid rgba(203, 213, 225, 0.55);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
    }

    #puzzleViewport::-webkit-scrollbar {
      width: 8px;
    }

    #puzzleViewport::-webkit-scrollbar-thumb {
      background: rgba(148, 163, 184, 0.55);
      border-radius: 999px;
    }

    #chainOverlay {
      position: absolute;
      inset: 0;
      pointer-events: none;
      z-index: 1;
      overflow: visible;
    }

    .chain-link {
      fill: none;
      stroke: #6b7280;
      stroke-width: 4;
      stroke-linecap: round;
      stroke-linejoin: round;
      opacity: 0.95;
    }

    .chain-link-draw {
      stroke-dasharray: var(--path-length);
      stroke-dashoffset: var(--path-length);
      animation: chain-draw 0.65s ease forwards;
    }

    @keyframes chain-draw {
      to { stroke-dashoffset: 0; }
    }

    .shake-row {
      animation: gentle-shake 0.4s ease;
    }

    @keyframes gentle-shake {
      0% { transform: translateX(0); }
      20% { transform: translateX(-4px); }
      40% { transform: translateX(4px); }
      60% { transform: translateX(-3px); }
      80% { transform: translateX(3px); }
      100% { transform: translateX(0); }
    }

    :root{
      --brand-ink: #0f172a;
      --brand-soft: #334155;
      --brand-border: #cbd5e1;
      --mobile-osk-height: 13.1rem;
      --osk-bg: #0f172a;
      --osk-key-bg: #e9ecef;
      --osk-key-fg: #0f172a;
      --osk-key-outline: #cbd5e1;
      --osk-key-hover: #dee2e6;
      --osk-correct-bg: #16a34a;
      --osk-present-bg: #f59e0b;
      --osk-absent-bg: #475569;
      --osk-key-fg-contrast: #ffffff;
    }
    .osk { user-select: none; touch-action: manipulation; }
    .osk .kb-row { display: flex; gap: .25rem; justify-content: center; margin-bottom: .5rem; }
    .osk .kb-key { 
      position: relative;
      min-width: 2.4rem;
      height: 3.8rem;
      border-radius: .5rem;
      border: 1px solid var(--osk-key-outline);
      background: var(--osk-key-bg);
      color: var(--osk-key-fg);
      font-weight: 700;
      text-transform: uppercase;
      display: inline-flex; align-items: center; justify-content: center;
      padding: 0 .6rem;
      cursor: pointer;
      transition: transform .02s ease, background-color .15s ease;
    }
    .osk .kb-key:active { transform: translateY(1px); }
    .osk .kb-key:hover { background: var(--osk-key-hover); }
    .osk .kb-key.kb-key-xl { min-width: 5.6rem; }
    .osk .kb-key[data-state="correct"] { background: var(--osk-correct-bg); color: var(--osk-key-fg-contrast); border-color: transparent; }
    .osk .kb-key[data-state="present"] { background: var(--osk-present-bg); color: var(--osk-key-fg-contrast); border-color: transparent; }
    .osk .kb-key[data-state="absent"] { background: var(--osk-absent-bg); color: var(--osk-key-fg-contrast); border-color: transparent; }
    .osk .kb-key:disabled { opacity: .6; cursor: not-allowed; }
    @media (max-width: 576px) {
      body {
        padding-bottom: calc(var(--mobile-osk-height) + 6.2rem);
      }

      .navbar h1 {
        font-size: 1.1rem;
      }

      #logo {
        height: 31px;
      }

      .game-shell {
        margin-top: 0.7rem;
        margin-bottom: calc(var(--mobile-osk-height) + 6rem);
        padding: 0.78rem 0.5rem 0.9rem;
        border-radius: 16px;
      }

      .hud {
        position: fixed;
        left: 50%;
        transform: translateX(-50%);
        bottom: calc(env(safe-area-inset-bottom) + var(--mobile-osk-height) + 0.35rem);
        z-index: 9998;
        gap: 0.35rem;
        padding: 0.3rem 0.6rem;
        margin: 0;
        max-width: calc(100vw - 1rem);
        white-space: nowrap;
      }

      .hud-label {
        font-size: 0.72rem;
      }

      .lives {
        font-size: 1.5rem;
      }

      .streak-value {
        font-size: 0.95rem;
      }

      .hud-divider {
        height: 0.9rem;
      }

      .letter-box {
        width: 34px;
        height: 44px;
        margin: 0 2px;
        font-size: 1.05rem;
      }
      #puzzleViewport {
        max-height: min(48vh, 16.5rem);
        padding: 0.35rem 0.1rem 0.35rem;
      }
      .reveal-card {
        width: min(94vw, 540px);
        max-height: 78vh;
        overflow-y: auto;
        padding: 0.95rem 0.7rem 0.85rem;
      }

      .help-card {
        width: min(95vw, 540px);
        max-height: 78vh;
        overflow-y: auto;
        padding: 0.9rem 0.75rem 0.82rem;
      }

      .reveal-actions .btn {
        min-width: 7rem;
        flex: 1 1 42%;
      }

      body #osk {
        padding: 0.35rem;
        padding-bottom: calc(env(safe-area-inset-bottom) + 0.9rem);
      }

      .osk .kb-row {
        gap: 0.18rem;
        margin-bottom: 0.36rem;
      }
      .osk .kb-key { min-width: 2.15rem; height: 3.35rem; border-radius: .45rem; padding: 0 .42rem; font-size: 0.95rem; }
      .osk .kb-key.kb-key-xl { min-width: 4.1rem; }
    }
    #osk {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;

  /* Style */
  padding: 0.5rem;
  background: linear-gradient(180deg, rgba(241, 245, 249, 0.97), rgba(226, 232, 240, 0.97));
  border-top: 1px solid rgba(148, 163, 184, 0.45);
  box-shadow: 0 -8px 24px rgba(15, 23, 42, 0.15);
  backdrop-filter: blur(10px);

  /* Respect iPhone notch & bottom bar */
  padding-bottom: calc(env(safe-area-inset-bottom) + 1.5rem);

  /* Prevent shrinking on small screens */
  touch-action: manipulation;
  user-select: none;
}
.reveal-screen {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(2, 6, 23, 0.58);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease;
  z-index: 10000;
}

.reveal-screen.show {
  opacity: 1;
  pointer-events: auto;
}

.reveal-card {
  width: min(92vw, 560px);
  background: linear-gradient(180deg, #ffffff, #f8fbff);
  border-radius: 20px;
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: 0 24px 60px rgba(2, 6, 23, 0.28);
  padding: 1.2rem 1rem 1rem;
  transform: translateY(16px) scale(0.98);
  transition: transform 0.35s ease;
}

.reveal-screen.show .reveal-card {
  transform: translateY(0) scale(1);
}

.reveal-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  font-size: 0.8rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
  border: 1px solid transparent;
}

.reveal-badge.win {
  color: #166534;
  background: #dcfce7;
  border-color: #86efac;
}

.reveal-badge.lose {
  color: #9a3412;
  background: #ffedd5;
  border-color: #fdba74;
}

#revealTitle {
  margin: 0.25rem 0 0.2rem;
  font-size: 1.7rem;
}

.reveal-message {
  color: #475569;
  margin-bottom: 0.6rem;
}

.reveal-words {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 0.9rem;
}

.reveal-word {
  font-size: 1.05rem;
  background: #ffffff;
  color: #0f172a;
  border-radius: 10px;
  padding: 0.52rem 0.85rem;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.1);
  border: 1px solid rgba(148, 163, 184, 0.22);
  transform: scale(0.8);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.reveal-word.show {
  transform: scale(1);
  opacity: 1;
}

.reveal-actions {
  display: flex;
  justify-content: center;
  gap: 0.65rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.reveal-actions .btn {
  min-width: 8.8rem;
}
.revealed {
  animation: pop-in 0.25s ease;
}

@keyframes pop-in {
  0% { transform: scale(0.8); opacity: 0; }
  80% { transform: scale(1.1); opacity: 1; }
  100% { transform: scale(1); }
}

.locked-letter {
  pointer-events: none;
  opacity: 0.95;
}