/* Be + -ing Chips – Present Continuous – Teen2Teen 2 Unit 2
   Fun, playful, mobile-first redesign */

:root {
  --bic-bg: #f5f3ff;
  --bic-card: #ffffff;
  --bic-text: #1e1b4b;
  --bic-muted: #64748b;
  --bic-accent: #6d28d9;
  --bic-accent-2: #8b5cf6;
  --bic-soft: #ede9fe;
  --bic-ok: #16a34a;
  --bic-ok-soft: rgba(22, 163, 74, 0.14);
  --bic-bad: #dc2626;
  --bic-bad-soft: rgba(220, 38, 38, 0.12);
  --bic-timer: #f59e0b;
  --bic-timer-low: #ef4444;
  --bic-streak: #f97316;
  --bic-shadow: 0 10px 28px rgba(30, 27, 75, 0.08);
  --bic-line: rgba(109, 40, 217, 0.14);
  --bic-pink: #ec4899;
  --bic-cyan: #06b6d4;
}

html[data-theme="dark"] {
  --bic-bg: #0f1220;
  --bic-card: #1a1f35;
  --bic-text: #f1f5f9;
  --bic-muted: #94a3b8;
  --bic-accent: #c4b5fd;
  --bic-accent-2: #a78bfa;
  --bic-soft: rgba(124, 58, 237, 0.18);
  --bic-ok: #4ade80;
  --bic-ok-soft: rgba(74, 222, 128, 0.16);
  --bic-bad: #f87171;
  --bic-bad-soft: rgba(248, 113, 113, 0.14);
  --bic-timer: #fbbf24;
  --bic-timer-low: #f87171;
  --bic-streak: #fb923c;
  --bic-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
  --bic-line: rgba(167, 139, 250, 0.22);
  --bic-pink: #f472b6;
  --bic-cyan: #22d3ee;
}

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

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bic-bg);
  color: var(--bic-text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}

.bic-game {
  max-width: 720px;
  margin: 0 auto;
  min-height: 100dvh;
  padding: 14px 16px 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow-x: hidden;
}

/* ---------- Floating particles (fun layer) ---------- */
.bic-fx {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 40;
  overflow: hidden;
}
.bic-fx i {
  position: absolute;
  font-size: 1.4rem;
  animation: bic-float-up 1.1s ease-out forwards;
  opacity: 0;
}

/* ---------- Start & Done screens ---------- */
.bic-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px 8px;
  animation: bic-in 0.4s cubic-bezier(0.34, 1.2, 0.64, 1);
}

.bic-hero {
  font-size: 3.6rem;
  line-height: 1;
  margin-bottom: 14px;
  filter: drop-shadow(0 8px 16px rgba(109, 40, 217, 0.3));
}

.bic-screen h1 {
  margin: 0 0 10px;
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--bic-accent), var(--bic-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bic-desc {
  margin: 0 0 8px;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--bic-muted);
  max-width: 360px;
}

.bic-meta {
  margin: 0 0 24px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--bic-accent-2);
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.bic-meta span {
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--bic-soft);
}

.bic-screen .ua-btn {
  min-width: 180px;
  font-size: 1.05rem;
  padding: 14px 28px;
}

/* ---------- Play area ---------- */
.bic-play {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.bic-stats {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.bic-timer-wrap {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--bic-card);
  box-shadow: var(--bic-shadow);
  border: 1px solid var(--bic-line);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  font-size: 1.05rem;
  color: var(--bic-timer);
  transition: color 0.2s, background 0.2s, transform 0.2s;
}

.bic-timer-wrap.is-low {
  color: var(--bic-timer-low);
  background: var(--bic-bad-soft);
  border-color: transparent;
  animation: bic-pulse 0.8s ease infinite;
}

.bic-timer-icon { font-size: 1.1rem; }

.bic-score-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.bic-score-pill,
.bic-streak-pill {
  padding: 8px 13px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
  display: flex;
  align-items: center;
  gap: 5px;
}

.bic-score-pill {
  background: var(--bic-soft);
  color: var(--bic-accent);
}

.bic-streak-pill {
  background: linear-gradient(135deg, #fff7ed, #ffedd5);
  color: var(--bic-streak);
  border: 1px solid rgba(249, 115, 22, 0.25);
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.25s, transform 0.25s;
}

html[data-theme="dark"] .bic-streak-pill {
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.2), rgba(251, 146, 60, 0.12));
}

.bic-streak-pill.is-on {
  opacity: 1;
  transform: scale(1);
  animation: bic-pop 0.4s ease;
}

.bic-streak-pill.is-hot {
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  color: #b45309;
  box-shadow: 0 0 16px rgba(245, 158, 11, 0.4);
}

html[data-theme="dark"] .bic-streak-pill.is-hot {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.3), rgba(251, 191, 36, 0.2));
  color: #fbbf24;
}

/* Emoji context badge */
.bic-emoji-badge {
  font-size: 2.6rem;
  line-height: 1;
  margin-bottom: 6px;

  display: inline-block;
}

/* Sentence card */
.bic-card {
  background: var(--bic-card);
  border-radius: 22px;
  padding: 20px 16px 18px;
  box-shadow: var(--bic-shadow);
  border: 1px solid var(--bic-line);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s;
}

.bic-card.is-ok {
  box-shadow: 0 0 0 3px var(--bic-ok), var(--bic-shadow);
}

.bic-card.is-bad {
  animation: bic-shake 0.45s ease;
}

.bic-prompt {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bic-accent-2);
  margin-bottom: 10px;
}

.bic-sentence {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 5px 3px;
  font-size: 1.32rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--bic-text);
  min-height: 2.5em;
}

.bic-word {
  display: inline-block;
  padding: 2px 1px;
}

.bic-blank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 4.3em;
  height: 2.25em;
  padding: 0 10px;
  margin: 0 2px;
  border-radius: 14px;
  border: 2.5px dashed var(--bic-accent-2);
  background: var(--bic-soft);
  color: var(--bic-accent);
  font-size: 1.05rem;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.15s, background 0.2s, border-color 0.2s, box-shadow 0.2s;
  -webkit-tap-highlight-color: transparent;
  vertical-align: middle;
}

.bic-blank:empty::before {
  content: "···";
  opacity: 0.4;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.bic-blank.is-filled {
  border-style: solid;
  border-color: var(--bic-accent);
  background: var(--bic-card);
  box-shadow: 0 3px 10px rgba(109, 40, 217, 0.18);
  /* no enter animation — avoids flicker on re-render */
}

.bic-blank.is-filled:hover { transform: scale(1.04); }

.bic-blank.is-ok {
  border-color: var(--bic-ok);
  background: var(--bic-ok-soft);
  color: var(--bic-ok);
  animation: bic-pop 0.4s ease;
}

.bic-blank.is-bad {
  border-color: var(--bic-bad);
  background: var(--bic-bad-soft);
  color: var(--bic-bad);
  animation: bic-shake 0.4s ease;
}

/* Chips */
.bic-chips-label {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--bic-muted);
  text-align: center;
  margin-top: 2px;
}

.bic-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  padding: 2px 0 6px;
}

.bic-chip {
  appearance: none;
  border: none;
  padding: 13px 18px;
  min-height: 50px;
  min-width: 76px;
  border-radius: 16px;
  background: var(--bic-card);
  color: var(--bic-text);
  font-size: 1.08rem;
  font-weight: 800;
  box-shadow: var(--bic-shadow);
  border: 1.5px solid var(--bic-line);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s, background 0.2s, opacity 0.2s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  position: relative;
}

.bic-chip:hover:not(:disabled) {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 14px 28px rgba(109, 40, 217, 0.2);
}

.bic-chip:active:not(:disabled) {
  transform: scale(0.94);
}

.bic-chip:disabled,
.bic-chip.is-used {
  opacity: 0.28;
  cursor: default;
  transform: none;
  box-shadow: none;
  pointer-events: none;
}

.bic-chip.is-be {
  background: linear-gradient(145deg, #f5f3ff, #fce7f3);
  border-color: rgba(139, 92, 246, 0.4);
}

html[data-theme="dark"] .bic-chip.is-be {
  background: linear-gradient(145deg, rgba(124, 58, 237, 0.28), rgba(236, 72, 153, 0.18));
}

.bic-chip.is-ing {
  background: linear-gradient(145deg, #e0f2fe, #dbeafe);
  border-color: rgba(59, 130, 246, 0.35);
}

html[data-theme="dark"] .bic-chip.is-ing {
  background: linear-gradient(145deg, rgba(59, 130, 246, 0.22), rgba(14, 165, 233, 0.15));
}


/* Feedback */
.bic-feedback {
  text-align: center;
  min-height: 1.5em;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--bic-muted);
  transition: color 0.2s, transform 0.2s;
}

.bic-feedback.is-ok {
  color: var(--bic-ok);
  animation: bic-pop 0.35s ease;
}

.bic-feedback.is-bad {
  color: var(--bic-bad);
  animation: bic-shake 0.35s ease;
}

/* Combo toast */
.bic-combo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.5);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--bic-streak);
  text-shadow: 0 2px 12px rgba(249, 115, 22, 0.4);
  pointer-events: none;
  opacity: 0;
  z-index: 5;
}

.bic-combo.is-show {
  animation: bic-combo-burst 0.9s ease forwards;
}

/* Encouragement overlay */
.bic-encourage {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(15, 18, 32, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: bic-fade 0.25s ease;
}

.bic-encourage-card {
  background: var(--bic-card);
  border-radius: 28px;
  padding: 36px 28px 30px;
  max-width: 360px;
  width: 100%;
  text-align: center;
  box-shadow: 0 28px 56px rgba(0, 0, 0, 0.3);
  animation: bic-pop-in 0.45s cubic-bezier(0.34, 1.5, 0.64, 1);
  position: relative;
  overflow: hidden;
}

.bic-encourage-card::before {
  content: "";
  position: absolute;
  top: -40%;
  left: -20%;
  width: 140%;
  height: 80%;
  background: radial-gradient(ellipse, rgba(139, 92, 246, 0.15), transparent 70%);
  pointer-events: none;
}

.bic-encourage-emoji {
  font-size: 3.4rem;
  margin-bottom: 12px;
  line-height: 1;
}

.bic-encourage-card h2 {
  margin: 0 0 8px;
  font-size: 1.55rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--bic-accent), var(--bic-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bic-encourage-card p {
  margin: 0 0 22px;
  font-size: 1rem;
  color: var(--bic-muted);
  line-height: 1.5;
}

.bic-encourage-card .ua-btn {
  width: 100%;
  font-size: 1.05rem;
  padding: 14px;
}

/* Done extras */
.bic-done-stats {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin: 14px 0 20px;
  flex-wrap: wrap;
}

.bic-done-stat {
  padding: 12px 16px;
  border-radius: 16px;
  background: var(--bic-soft);
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--bic-accent);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-width: 90px;
}

.bic-done-stat small {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--bic-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.bic-done-stat strong {
  font-size: 1.25rem;
}

/* Animations */
@keyframes bic-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes bic-pop {
  0% { transform: scale(1); }
  40% { transform: scale(1.12); }
  100% { transform: scale(1); }
}

@keyframes bic-pop-in {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

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

@keyframes bic-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.03); }
}

@keyframes bic-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes bic-bounce-soft {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}


@keyframes bic-chip-in {
  from { transform: scale(0.7); opacity: 0.5; }
  to { transform: scale(1); opacity: 1; }
}

@keyframes bic-card-ok {
  0% { transform: scale(1); }
  30% { transform: scale(1.02); }
  100% { transform: scale(1); }
}

@keyframes bic-combo-burst {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.4); }
  25% { opacity: 1; transform: translate(-50%, -55%) scale(1.15); }
  70% { opacity: 1; transform: translate(-50%, -70%) scale(1); }
  100% { opacity: 0; transform: translate(-50%, -90%) scale(0.9); }
}

@keyframes bic-float-up {
  0% { opacity: 1; transform: translateY(0) scale(1) rotate(0deg); }
  100% { opacity: 0; transform: translateY(-90px) scale(1.3) rotate(20deg); }
}

/* Mobile */
@media (max-width: 420px) {
  .bic-game { padding: 12px 12px 24px; }
  .bic-sentence { font-size: 1.15rem; }
  .bic-blank { min-width: 3.5em; height: 2em; font-size: 0.95rem; }
  .bic-chip { padding: 12px 14px; min-height: 46px; font-size: 1rem; }
  .bic-hero { font-size: 3rem; }
  .bic-screen h1 { font-size: 1.4rem; }
  .bic-emoji-badge { font-size: 2.2rem; }
}

@media (min-width: 560px) {
  .bic-game {
    padding: 20px 24px 36px;
    gap: 16px;
  }
  .bic-sentence {
    font-size: 1.55rem;
    gap: 8px 6px;
    min-height: 2.8em;
  }
  .bic-blank {
    min-width: 5em;
    height: 2.5em;
    font-size: 1.2rem;
    border-radius: 16px;
    padding: 0 14px;
  }
  .bic-chip {
    padding: 16px 24px;
    min-height: 56px;
    min-width: 92px;
    font-size: 1.2rem;
    border-radius: 18px;
  }
  .bic-card {
    padding: 28px 24px 24px;
    border-radius: 26px;
  }
  .bic-emoji-badge {
    font-size: 3.2rem;
    margin-bottom: 10px;
  }
  .bic-prompt {
    font-size: 0.78rem;
    margin-bottom: 14px;
  }
  .bic-chips-label {
    font-size: 0.8rem;
  }
  .bic-feedback {
    font-size: 1.15rem;
  }
  .bic-timer-wrap {
    padding: 10px 16px;
    font-size: 1.15rem;
  }
  .bic-score-pill,
  .bic-streak-pill {
    padding: 10px 16px;
    font-size: 0.95rem;
  }
  .bic-chips {
    gap: 14px;
  }
}

@media (min-width: 768px) {
  .bic-game {
    max-width: 780px;
    padding: 24px 28px 40px;
  }
  .bic-sentence {
    font-size: 1.7rem;
  }
  .bic-blank {
    min-width: 5.4em;
    height: 2.65em;
    font-size: 1.28rem;
  }
  .bic-chip {
    padding: 18px 28px;
    min-height: 60px;
    min-width: 100px;
    font-size: 1.28rem;
  }
  .bic-emoji-badge {
    font-size: 3.5rem;
  }
  .bic-screen h1 {
    font-size: 1.85rem;
  }
  .bic-hero {
    font-size: 4.2rem;
  }
  .bic-desc {
    font-size: 1.08rem;
    max-width: 420px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .bic-screen, .bic-play, .bic-blank.is-ok, .bic-blank.is-bad,
  .bic-encourage-card, .bic-timer-wrap.is-low, .bic-hero,
  .bic-emoji-badge, .bic-combo, .bic-fx i {
    animation: none !important;
  }
}