/* ============================================================
   打字小勇士 — Worksheet Studio Game Screen Override
   Only restyles #screen-game (gameplay screen).
   Menu + summary keep their existing look.
   ============================================================ */

:root {
  --ws-navy: #1a2e4a;
  --ws-navy-soft: #2d4263;
  --ws-coral: #ff6b5b;
  --ws-yellow: #ffd166;
  --ws-mint: #06d6a0;
  --ws-white: #ffffff;
  --ws-paper: #fffaf0;
  --ws-paper-warm: #fff8e7;
  --ws-coral-light: #fff0ee;
  --ws-mint-light: #e6faf3;
  --ws-rule: #e2d8c4;
  --ws-rule-soft: #efe7d3;
  --ws-shadow: 0 3px 0 var(--ws-navy);
  --ws-shadow-soft: 0 4px 0 rgba(26, 46, 74, 0.12);
}

#screen-game {
  /* Warm paper background with red margin rule + horizontal ruled lines */
  background:
    /* horizontal ruled lines */
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 39px,
      rgba(26, 46, 74, 0.08) 39px,
      rgba(26, 46, 74, 0.08) 40px
    ),
    /* vertical red margin line on the left */
    linear-gradient(
      to right,
      transparent 0,
      transparent 79px,
      rgba(255, 107, 91, 0.35) 79px,
      rgba(255, 107, 91, 0.35) 80px,
      transparent 80px
    ),
    /* warm paper base */
    linear-gradient(180deg, #fff8e7 0%, #fffaf0 100%);
  font-family: 'Nunito', 'Noto Sans TC', sans-serif;
  flex-direction: column;
  padding: 0;
  position: absolute;
  inset: 0;
  overflow: hidden;
}

/* Subtle paper grain — faint dot noise via radial gradients */
#screen-game::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 17% 22%, rgba(26, 46, 74, 0.025) 1px, transparent 1.5px),
    radial-gradient(circle at 73% 67%, rgba(26, 46, 74, 0.025) 1px, transparent 1.5px),
    radial-gradient(circle at 45% 88%, rgba(255, 107, 91, 0.04) 1px, transparent 1.5px);
  background-size: 60px 60px, 80px 80px, 100px 100px;
  pointer-events: none;
  z-index: 0;
}

/* Decorative star scatter (drawn with CSS, not unicode) */
#screen-game::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    /* tiny stars at known positions, drawn as SVG data uris */
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><path d='M10 2 L11.5 7.5 L17 8.5 L13 12 L14 18 L10 15 L6 18 L7 12 L3 8.5 L8.5 7.5 Z' fill='%23ffd166' stroke='%231a2e4a' stroke-width='1.2' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: 92% 12%;
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 1;
  opacity: 0.7;
}

/* ============================================================
   HUD — "Worksheet header band" with score chips
   ============================================================ */
#screen-game #game-hud {
  position: relative;
  z-index: 5;
  background: var(--ws-white);
  backdrop-filter: none;
  border-bottom: 3px solid var(--ws-navy);
  box-shadow: 0 4px 0 rgba(26, 46, 74, 0.08);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  flex-wrap: wrap;
}

/* Title chip on the very left of HUD */
#screen-game #game-hud::before {
  content: '練字場 / Typing Arena';
  font-family: 'Nunito', 'Noto Sans TC', sans-serif;
  font-weight: 900;
  font-size: 0.95rem;
  color: var(--ws-navy);
  background: var(--ws-yellow);
  border: 2px solid var(--ws-navy);
  border-radius: 6px;
  padding: 6px 12px;
  letter-spacing: 0.5px;
  box-shadow: 2px 2px 0 var(--ws-navy);
  margin-right: 8px;
  white-space: nowrap;
}

#screen-game .hud-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--ws-white);
  border: 2px solid var(--ws-navy);
  border-radius: 8px;
  box-shadow: 2px 2px 0 var(--ws-navy);
}

#screen-game .hud-item .hud-label {
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--ws-navy);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  opacity: 0.65;
  font-family: 'Nunito', 'Noto Sans TC', sans-serif;
}

#screen-game .hud-item .hud-value {
  font-family: 'Nunito', monospace;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--ws-navy);
  min-width: 1.5em;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

#screen-game #hud-combo {
  color: var(--ws-coral);
}

#screen-game #hud-timer {
  color: var(--ws-mint);
}

#screen-game #hud-timer.urgent {
  color: var(--ws-coral);
  animation: ws-pulse 0.6s infinite alternate;
}

@keyframes ws-pulse {
  from { transform: scale(1); }
  to { transform: scale(1.12); }
}

/* Lives → row of pencil stubs (SVG drawn) */
#screen-game .hud-lives {
  display: inline-flex;
  gap: 4px;
  font-size: 0;
  letter-spacing: 0;
  align-items: center;
}

#screen-game .ws-pencil {
  display: inline-block;
  width: 22px;
  height: 22px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><g stroke='%231a2e4a' stroke-width='1.8' stroke-linejoin='round' stroke-linecap='round'><path d='M3 19 L8 14 L18 4 L20 6 L10 16 L5 21 Z' fill='%23ffd166'/><path d='M3 19 L5 21 L8 18 L4 16 Z' fill='%231a2e4a'/><path d='M16 6 L18 4 L20 6 L18 8 Z' fill='%23ff6b5b'/></g></svg>");
  background-size: contain;
  background-repeat: no-repeat;
  transition: opacity 0.3s, transform 0.3s;
}

#screen-game .ws-pencil.lost {
  opacity: 0.18;
  filter: grayscale(1);
  transform: rotate(-15deg);
}

#screen-game .heart-damage {
  animation: ws-shake 0.3s ease;
}

@keyframes ws-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px) rotate(-2deg); }
  75% { transform: translateX(3px) rotate(2deg); }
}

/* Pause button → square navy outline */
#screen-game .pause-btn {
  margin-left: auto;
  padding: 8px 14px;
  border: 2px solid var(--ws-navy);
  border-radius: 8px;
  background: var(--ws-white);
  color: var(--ws-navy);
  font-size: 1.1rem;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 2px 2px 0 var(--ws-navy);
  transition: transform 0.1s, box-shadow 0.1s;
}

#screen-game .pause-btn:hover {
  background: var(--ws-yellow);
}

#screen-game .pause-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 0 0 0 var(--ws-navy);
}

/* ============================================================
   Game container — the playfield
   ============================================================ */
#screen-game #game-container {
  position: relative;
  z-index: 2;
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  overflow: hidden;
  /* "danger zone" — bottom band tinted coral, like the bottom margin of a worksheet */
}

/* Bottom danger line — dashed navy "ground" where letters land */
#screen-game #game-container::after {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 6px;
  height: 0;
  border-top: 3px dashed var(--ws-navy);
  pointer-events: none;
  z-index: 3;
  opacity: 0.45;
}

/* Decor layer — sits above the game container, between HUD and input area */
.ws-decor {
  position: absolute;
  top: 70px;       /* below HUD */
  left: 0;
  right: 0;
  bottom: 90px;    /* above input area */
  pointer-events: none;
  z-index: 4;
}

/* Mascot in the corner — cheering rabbit with pencil */
.ws-mascot {
  position: absolute;
  bottom: 10px;
  right: 18px;
  width: 130px;
  height: 130px;
  background-image: url("../assets/mascots/02_rabbit.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: bottom right;
  pointer-events: none;
  z-index: 4;
  animation: ws-mascot-bob 3.2s ease-in-out infinite;
  filter: drop-shadow(0 2px 0 rgba(26, 46, 74, 0.15));
}

.ws-mascot.left {
  left: 18px;
  right: auto;
  background-image: url("../assets/mascots/05_fox.png");
  transform: scaleX(-1);
  width: 110px;
  height: 110px;
  animation-delay: 0.6s;
}

@keyframes ws-mascot-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.ws-mascot.left {
  animation-name: ws-mascot-bob-left;
}

@keyframes ws-mascot-bob-left {
  0%, 100% { transform: scaleX(-1) translateY(0); }
  50% { transform: scaleX(-1) translateY(-5px); }
}

.ws-mascot.cheer {
  animation: ws-mascot-cheer 0.5s ease;
}

@keyframes ws-mascot-cheer {
  0%, 100% { transform: translateY(0) rotate(0); }
  30% { transform: translateY(-14px) rotate(-6deg); }
  60% { transform: translateY(-8px) rotate(4deg); }
}

/* "Today's challenge" sticky note — top-left decorative */
.ws-sticky {
  position: absolute;
  top: 14px;
  left: 18px;
  background: var(--ws-yellow);
  border: 2.5px solid var(--ws-navy);
  border-radius: 4px;
  padding: 8px 14px;
  font-family: 'Nunito', 'Noto Sans TC', sans-serif;
  font-weight: 800;
  color: var(--ws-navy);
  font-size: 0.85rem;
  transform: rotate(-3deg);
  box-shadow: 3px 3px 0 rgba(26, 46, 74, 0.2);
  z-index: 4;
  line-height: 1.3;
  pointer-events: none;
}

.ws-sticky::before {
  content: '★';
  display: inline-block;
  margin-right: 4px;
  color: var(--ws-coral);
  font-size: 0.95rem;
}

.ws-sticky-en {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  opacity: 0.7;
  margin-top: 2px;
}

/* ============================================================
   Falling words — paper cards with colored tabs
   ============================================================ */
#screen-game .falling-word {
  position: absolute;
  padding: 10px 18px 10px 18px;
  border: 2.5px solid var(--ws-navy);
  border-radius: 10px;
  background: var(--ws-white);
  color: var(--ws-navy);
  font-family: 'Nunito', 'Noto Sans TC', sans-serif;
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: 0.5px;
  white-space: nowrap;
  user-select: none;
  text-shadow: none;
  box-shadow: 3px 3px 0 var(--ws-navy);
  transform: rotate(var(--ws-rotate, 0deg));
  z-index: 5;
  /* override gradient backgrounds from old palette */
  background-image: none !important;
}

/* Color-tagged top stripe — kept via the old word-color-N classes */
#screen-game .falling-word.word-color-0 { background: var(--ws-white) !important; border-color: var(--ws-navy); --ws-rotate: -2deg; }
#screen-game .falling-word.word-color-1 { background: var(--ws-coral-light) !important; border-color: var(--ws-navy); --ws-rotate: 1.5deg; }
#screen-game .falling-word.word-color-2 { background: var(--ws-mint-light) !important; border-color: var(--ws-navy); --ws-rotate: -1deg; }
#screen-game .falling-word.word-color-3 { background: var(--ws-paper-warm) !important; border-color: var(--ws-navy); --ws-rotate: 2deg; }
#screen-game .falling-word.word-color-4 { background: var(--ws-white) !important; border-color: var(--ws-navy); --ws-rotate: -1.5deg; }
#screen-game .falling-word.word-color-5 { background: var(--ws-coral-light) !important; border-color: var(--ws-navy); --ws-rotate: 0.5deg; }

/* Colored tab/sticker on top of each card */
#screen-game .falling-word::before {
  content: '';
  position: absolute;
  top: -7px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 10px;
  background: var(--ws-coral);
  border: 2px solid var(--ws-navy);
  border-radius: 3px;
  box-shadow: 0 2px 0 rgba(26, 46, 74, 0.3);
}

#screen-game .falling-word.word-color-0::before { background: var(--ws-coral); }
#screen-game .falling-word.word-color-1::before { background: var(--ws-yellow); }
#screen-game .falling-word.word-color-2::before { background: var(--ws-mint); }
#screen-game .falling-word.word-color-3::before { background: var(--ws-coral); }
#screen-game .falling-word.word-color-4::before { background: var(--ws-yellow); }
#screen-game .falling-word.word-color-5::before { background: var(--ws-mint); }

/* Targeted state — yellow halo + lift + scale */
#screen-game .falling-word.targeted {
  box-shadow: 0 0 0 4px var(--ws-yellow), 5px 5px 0 var(--ws-navy);
  transform: rotate(0deg) scale(1.08) translateY(-2px);
  z-index: 6;
  background: var(--ws-paper-warm) !important;
}

/* Matched character: navy filled, white text — like a stamped letter */
#screen-game .falling-word .matched {
  background: var(--ws-mint);
  color: var(--ws-navy);
  border-radius: 3px;
  padding: 0 2px;
  margin: 0 1px;
  display: inline-block;
  font-weight: 900;
  box-shadow: inset 0 -2px 0 rgba(26, 46, 74, 0.2);
}

#screen-game .falling-word .unmatched {
  color: var(--ws-navy);
  opacity: 1;
}

/* Ruby (zhuyin) text */
#screen-game .falling-word rt {
  font-size: 0.5em;
  color: var(--ws-coral);
  font-weight: 700;
  letter-spacing: 0;
}

/* Simple-mode falling word — large character + key hint */
#screen-game .falling-word.simple-word {
  padding: 14px 18px 10px;
  min-width: 70px;
}

#screen-game .simple-char {
  font-family: 'Nunito', 'Noto Sans TC', sans-serif;
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--ws-navy);
  line-height: 1;
}

#screen-game .simple-key-hint {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--ws-white);
  background: var(--ws-navy);
  border-radius: 3px;
  padding: 2px 8px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* ============================================================
   Input area — looks like a "writing line"
   ============================================================ */
#screen-game #input-area {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 14px 24px 22px;
  position: relative;
  z-index: 5;
}

#screen-game #game-input {
  width: 100%;
  padding: 14px 22px;
  border: 2.5px solid var(--ws-navy);
  border-radius: 10px;
  background: var(--ws-white);
  font-family: 'Nunito', 'Noto Sans TC', sans-serif;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--ws-navy);
  text-align: center;
  letter-spacing: 1px;
  outline: none;
  box-shadow: 3px 3px 0 var(--ws-navy);
  transition: box-shadow 0.15s, transform 0.15s;
}

#screen-game #game-input::placeholder {
  color: var(--ws-navy);
  opacity: 0.35;
  font-weight: 700;
}

#screen-game #game-input:focus {
  box-shadow: 5px 5px 0 var(--ws-navy), 0 0 0 4px var(--ws-yellow);
  transform: translate(-1px, -1px);
}

/* Simple mode hint — a "pencil instruction" callout */
#screen-game .simple-hint {
  width: 100%;
  padding: 18px 20px;
  background: var(--ws-yellow);
  border: 3px dashed var(--ws-navy);
  border-radius: 12px;
  text-align: center;
  font-family: 'Nunito', 'Noto Sans TC', sans-serif;
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--ws-navy);
  letter-spacing: 2px;
  animation: ws-hint-pulse 2.4s infinite ease-in-out;
  box-shadow: 3px 3px 0 var(--ws-navy);
}

@keyframes ws-hint-pulse {
  0%, 100% { transform: translateY(0); box-shadow: 3px 3px 0 var(--ws-navy); }
  50% { transform: translateY(-3px); box-shadow: 3px 6px 0 var(--ws-navy); }
}

/* ============================================================
   Floating popups — score, meaning, combo
   ============================================================ */
#screen-game .floating-score-popup {
  position: absolute;
  font-family: 'Nunito', sans-serif;
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--ws-coral);
  text-shadow:
    -2px 0 0 var(--ws-navy),
    2px 0 0 var(--ws-navy),
    0 -2px 0 var(--ws-navy),
    0 2px 0 var(--ws-navy),
    0 4px 0 rgba(26, 46, 74, 0.3);
  pointer-events: none;
  z-index: 25;
  animation: ws-floatUp 1s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes ws-floatUp {
  0% { opacity: 1; transform: translateY(0) scale(0.6) rotate(-4deg); }
  30% { transform: translateY(-30px) scale(1.15) rotate(2deg); }
  100% { opacity: 0; transform: translateY(-80px) scale(1) rotate(-2deg); }
}

#screen-game .meaning-popup {
  position: absolute;
  padding: 6px 14px;
  border: 2px solid var(--ws-navy);
  border-radius: 8px;
  background: var(--ws-navy);
  color: var(--ws-white);
  font-family: 'Nunito', 'Noto Sans TC', sans-serif;
  font-size: 0.95rem;
  font-weight: 800;
  white-space: nowrap;
  pointer-events: none;
  z-index: 20;
  box-shadow: 2px 2px 0 var(--ws-coral);
  animation: ws-floatUpMeaning 1.6s ease forwards;
}

@keyframes ws-floatUpMeaning {
  0% { opacity: 0; transform: translateY(8px); }
  20% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(-50px); }
}

#screen-game ~ .combo-popup,
.combo-popup {
  position: fixed;
  top: 38%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: 'Nunito', sans-serif;
  font-size: 3.2rem;
  font-weight: 900;
  letter-spacing: 2px;
  color: var(--ws-yellow);
  text-shadow:
    -3px 0 0 var(--ws-navy),
    3px 0 0 var(--ws-navy),
    0 -3px 0 var(--ws-navy),
    0 3px 0 var(--ws-navy),
    3px 3px 0 var(--ws-navy),
    0 8px 0 rgba(26, 46, 74, 0.25);
  pointer-events: none;
  z-index: 200;
  animation: ws-comboBounce 0.9s ease forwards;
}

@keyframes ws-comboBounce {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.2) rotate(-15deg); }
  35% { opacity: 1; transform: translate(-50%, -50%) scale(1.25) rotate(6deg); }
  60% { transform: translate(-50%, -50%) scale(0.95) rotate(-3deg); }
  80% { transform: translate(-50%, -50%) scale(1.05) rotate(1deg); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1) rotate(0); }
}

/* ============================================================
   Pause overlay — paper card style
   ============================================================ */
#screen-game .overlay {
  background: rgba(26, 46, 74, 0.55);
  backdrop-filter: blur(4px);
  z-index: 100;
}

#screen-game .overlay-content {
  background: var(--ws-paper);
  border: 3px solid var(--ws-navy);
  border-radius: 14px;
  padding: 36px 44px;
  text-align: center;
  box-shadow: 6px 6px 0 var(--ws-navy);
  font-family: 'Nunito', 'Noto Sans TC', sans-serif;
  position: relative;
}

#screen-game .overlay-content::before {
  content: '';
  position: absolute;
  top: -22px;
  left: 50%;
  transform: translateX(-50%) rotate(-4deg);
  width: 70px;
  height: 22px;
  background: var(--ws-yellow);
  border: 2px solid var(--ws-navy);
  border-radius: 4px;
  box-shadow: 2px 2px 0 var(--ws-navy);
}

#screen-game .overlay-content h2 {
  font-family: 'Nunito', 'Noto Sans TC', sans-serif;
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--ws-navy);
  margin-bottom: 4px;
  letter-spacing: 2px;
  background: none;
  -webkit-text-fill-color: var(--ws-navy);
}

#screen-game .overlay-content h2::after {
  content: 'Paused';
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 4px;
  opacity: 0.5;
  margin-top: 2px;
  text-transform: uppercase;
}

#screen-game .menu-action-btn {
  display: block;
  width: 220px;
  margin: 12px auto;
  padding: 12px 16px;
  border: 2.5px solid var(--ws-navy);
  border-radius: 10px;
  background: var(--ws-coral);
  color: var(--ws-white);
  font-family: 'Nunito', 'Noto Sans TC', sans-serif;
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: 1px;
  cursor: pointer;
  box-shadow: 3px 3px 0 var(--ws-navy);
  transition: transform 0.1s, box-shadow 0.1s;
}

#screen-game .menu-action-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--ws-navy);
  opacity: 1;
}

#screen-game .menu-action-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--ws-navy);
}

#screen-game .menu-action-btn.secondary {
  background: var(--ws-white);
  color: var(--ws-navy);
}

/* ============================================================
   Word destroy / shake animations
   ============================================================ */
/* ============================================================
   Word destroy / shake animations
   ============================================================ */
@keyframes ws-wordEnter {
  0% { transform: rotate(var(--ws-rotate, 0deg)) translateY(-30px) scale(0.6); opacity: 0; }
  60% { transform: rotate(calc(var(--ws-rotate, 0deg) * 1.5)) translateY(8px) scale(1.06); opacity: 1; }
  100% { transform: rotate(var(--ws-rotate, 0deg)) translateY(0) scale(1); opacity: 1; }
}
#screen-game .falling-word.entering {
  animation: ws-wordEnter 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Per-letter stamp burst when newly matched */
@keyframes ws-stamp {
  0% { transform: scale(1); }
  35% { transform: scale(1.6) rotate(-4deg); filter: brightness(1.3); }
  100% { transform: scale(1) rotate(0); filter: brightness(1); }
}
#screen-game .falling-word .matched.stamp {
  animation: ws-stamp 0.28s ease;
}

/* MISS stamp — big red rubber stamp effect */
.ws-miss-stamp {
  position: absolute;
  font-family: 'Nunito', sans-serif;
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--ws-coral);
  letter-spacing: 4px;
  border: 4px solid var(--ws-coral);
  padding: 4px 14px;
  border-radius: 4px;
  background: rgba(255, 107, 91, 0.08);
  pointer-events: none;
  z-index: 30;
  transform-origin: center;
  animation: ws-miss-stamp 0.7s ease forwards;
  text-shadow: 1px 1px 0 var(--ws-navy);
  box-shadow: 0 0 0 2px rgba(26, 46, 74, 0.15);
}
@keyframes ws-miss-stamp {
  0% { opacity: 0; transform: scale(2.5) rotate(-15deg); }
  20% { opacity: 1; transform: scale(0.9) rotate(-12deg); }
  35% { transform: scale(1.05) rotate(-8deg); }
  100% { opacity: 0; transform: scale(1) rotate(-8deg) translateY(-10px); }
}

/* Confetti — paper bits exploding */
.ws-confetti {
  position: absolute;
  width: 8px;
  height: 12px;
  border: 1.5px solid var(--ws-navy);
  border-radius: 1px;
  pointer-events: none;
  z-index: 28;
  animation: ws-confetti-fly 0.9s cubic-bezier(0.2, 0.8, 0.4, 1) forwards;
}
@keyframes ws-confetti-fly {
  0% { opacity: 1; transform: translate(0, 0) rotate(0); }
  100% { opacity: 0; transform: translate(var(--dx), var(--dy)) rotate(var(--rot)); }
}

/* Mascot worried state — slight tilt, slower bob */
.ws-mascot.worried {
  filter: drop-shadow(0 2px 0 rgba(255, 107, 91, 0.4)) hue-rotate(-10deg);
  animation: ws-mascot-worry 1.6s ease-in-out infinite;
}
.ws-mascot.left.worried {
  animation: ws-mascot-worry-left 1.6s ease-in-out infinite;
}
@keyframes ws-mascot-worry {
  0%, 100% { transform: translateY(0) rotate(-3deg); }
  50% { transform: translateY(-2px) rotate(3deg); }
}
@keyframes ws-mascot-worry-left {
  0%, 100% { transform: scaleX(-1) translateY(0) rotate(-3deg); }
  50% { transform: scaleX(-1) translateY(-2px) rotate(3deg); }
}

/* Combo aura — input glows when on a streak */
#screen-game #input-area.combo-hot #game-input {
  box-shadow: 3px 3px 0 var(--ws-navy), 0 0 0 4px rgba(255, 209, 102, 0.6);
}
#screen-game #input-area.combo-blazing #game-input {
  box-shadow: 3px 3px 0 var(--ws-navy), 0 0 0 5px var(--ws-yellow), 0 0 24px 4px rgba(255, 107, 91, 0.5);
  animation: ws-input-pulse 0.6s ease-in-out infinite alternate;
}
@keyframes ws-input-pulse {
  from { transform: translate(0, 0); }
  to { transform: translate(0, -2px); }
}

/* Better floating score with label */
#screen-game .floating-score-popup {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-shadow: none;
  color: var(--ws-coral);
}
#screen-game .floating-score-popup .fs-label {
  font-family: 'Nunito', sans-serif;
  font-size: 0.9rem;
  font-weight: 900;
  letter-spacing: 2px;
  color: var(--ws-navy);
  background: var(--ws-yellow);
  border: 2px solid var(--ws-navy);
  padding: 1px 8px;
  border-radius: 4px;
  box-shadow: 1px 1px 0 var(--ws-navy);
}
#screen-game .floating-score-popup .fs-score {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--ws-coral);
  text-shadow:
    -2px 0 0 var(--ws-navy),
    2px 0 0 var(--ws-navy),
    0 -2px 0 var(--ws-navy),
    0 2px 0 var(--ws-navy),
    0 4px 0 rgba(26, 46, 74, 0.3);
}
#screen-game .floating-score-popup.perfect .fs-label {
  background: var(--ws-coral);
  color: var(--ws-white);
  font-size: 1rem;
  letter-spacing: 3px;
  animation: ws-perfect-shake 0.4s ease;
}
@keyframes ws-perfect-shake {
  0%, 100% { transform: rotate(0); }
  25% { transform: rotate(-4deg) scale(1.1); }
  75% { transform: rotate(4deg) scale(1.1); }
}

/* Pulsing danger line — gets more intense as words fall */
#screen-game #game-container::after {
  animation: ws-danger-breathe 2.4s ease-in-out infinite;
}
@keyframes ws-danger-breathe {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.6; }
}

@keyframes ws-wordDestroy {
  0% { transform: rotate(var(--ws-rotate, 0deg)) scale(1); opacity: 1; }
  40% {
    transform: rotate(0deg) scale(1.25);
    opacity: 1;
    background: var(--ws-mint) !important;
    box-shadow: 0 0 0 6px var(--ws-yellow), 4px 4px 0 var(--ws-navy);
  }
  100% { transform: rotate(0deg) scale(0); opacity: 0; }
}

#screen-game .falling-word.destroying {
  animation: ws-wordDestroy 0.35s ease forwards !important;
}

#screen-game .shake {
  animation: ws-screen-shake 0.4s ease;
}

@keyframes ws-screen-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-7px); }
  40% { transform: translateX(7px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(5px); }
}

/* ============================================================
   Tweaks Panel — bottom-right floating card
   ============================================================ */
.ws-tweaks {
  position: fixed;
  bottom: 18px;
  right: 18px;
  width: 240px;
  background: var(--ws-paper);
  border: 2.5px solid var(--ws-navy);
  border-radius: 12px;
  padding: 14px 16px 16px;
  box-shadow: 4px 4px 0 var(--ws-navy);
  font-family: 'Nunito', 'Noto Sans TC', sans-serif;
  z-index: 500;
  display: none;
}

.ws-tweaks.show { display: block; }

.ws-tweaks-title {
  font-size: 0.85rem;
  font-weight: 900;
  color: var(--ws-navy);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 2px dashed var(--ws-navy);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ws-tweaks-close {
  background: none;
  border: none;
  font-size: 1.1rem;
  color: var(--ws-navy);
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.ws-tweak-row { margin-bottom: 12px; }

.ws-tweak-label {
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--ws-navy);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
  opacity: 0.7;
}

.ws-tweak-options {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.ws-tweak-btn {
  padding: 6px 10px;
  border: 2px solid var(--ws-navy);
  border-radius: 6px;
  background: var(--ws-white);
  color: var(--ws-navy);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.1s;
}

.ws-tweak-btn:hover { background: var(--ws-paper-warm); }

.ws-tweak-btn.active {
  background: var(--ws-navy);
  color: var(--ws-white);
}

/* Mascot variants for tweaks */
.ws-mascot.mascot-rabbit { background-image: url("../assets/mascots/02_rabbit.png"); }
.ws-mascot.mascot-fox { background-image: url("../assets/mascots/05_fox.png"); }
.ws-mascot.mascot-owl { background-image: url("../assets/mascots/01_owl.png"); }
.ws-mascot.mascot-unicorn { background-image: url("../assets/mascots/06_unicorn.png"); }
.ws-mascot.mascot-axolotl { background-image: url("../assets/mascots/08_axolotl_pencil.png"); }

/* Background-mode tweaks */
#screen-game.bg-plain {
  background:
    linear-gradient(180deg, var(--ws-paper) 0%, var(--ws-white) 100%);
}
#screen-game.bg-plain::after { background-image: none; }

#screen-game.bg-grid {
  background:
    repeating-linear-gradient(0deg, transparent 0, transparent 39px, rgba(26, 46, 74, 0.1) 39px, rgba(26, 46, 74, 0.1) 40px),
    repeating-linear-gradient(90deg, transparent 0, transparent 39px, rgba(26, 46, 74, 0.06) 39px, rgba(26, 46, 74, 0.06) 40px),
    var(--ws-white);
}