/**
 * NIHONGO MASTER MATCH v2.0 — PC Friendly
 */
.nmq-m {
  --bg: #0f1117; --surface: #1a1d27; --card: #22263a;
  --primary: #6c5ce7; --accent: #00cec9;
  --text: #f0f0f0; --text-dim: #8892b0;
  --match: #00b894; --wrong: #e17055;
  --radius: 16px;
  font-family: 'Noto Sans','Noto Sans JP',system-ui,sans-serif;
  background: var(--bg); color: var(--text);
  min-height: 600px; max-width: 1100px; width: 100%;
  margin: 24px auto; padding: 40px;
  border-radius: var(--radius);
  box-shadow: 0 12px 48px rgba(0,0,0,0.4);
  user-select: none; -webkit-user-select: none;
}
.nmq-rtl { direction: rtl; }
.nmq-font-bn { font-family: 'Noto Sans Bengali','Noto Sans',sans-serif; }
.nmq-font-si { font-family: 'Noto Sans Sinhala','Noto Sans',sans-serif; }
.nmq-font-my { font-family: 'Noto Sans Myanmar','Noto Sans',sans-serif; }
.nmq-font-km { font-family: 'Noto Sans Khmer','Noto Sans',sans-serif; }
.nmq-font-mn { font-family: 'Noto Sans Mongolian','Noto Sans',sans-serif; }

.nmq-m-center {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  min-height: 520px; gap: 20px;
}

.nmq-m-logo { text-align: center; margin-bottom: 12px; }
.nmq-m-logo-icon { font-size: 52px; display: block; }
.nmq-m-logo-text {
  font-size: 38px; font-weight: 900; letter-spacing: 6px;
  background: linear-gradient(135deg, #e17055, #fdcb6e);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.nmq-m-logo-level {
  display: inline-block; background: var(--primary); color: #fff;
  padding: 4px 18px; border-radius: 24px;
  font-size: 16px; font-weight: 700; margin-left: 12px; letter-spacing: 2px;
}
.nmq-m-sub { color: var(--text-dim); font-size: 18px; margin: 0; }

.nmq-m-lang-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 12px; width: 100%; max-width: 800px;
}
.nmq-m-lang-btn {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 18px;
  background: var(--surface); border: 2px solid transparent;
  border-radius: var(--radius); color: var(--text);
  cursor: pointer; transition: all 0.2s; font-size: 15px; font-weight: 600;
}
.nmq-m-lang-btn:hover { border-color: var(--primary); background: var(--card); transform: translateY(-3px); }
.nmq-m-flag { font-size: 26px; }

.nmq-m-stitle {
  color: var(--text-dim); font-size: 15px;
  text-transform: uppercase; letter-spacing: 3px; margin: 0; font-weight: 700;
}
.nmq-m-cat-grid {
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 12px; width: 100%; max-width: 800px;
}
.nmq-m-diff-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 12px; width: 100%; max-width: 600px;
}
.nmq-m-cat-btn, .nmq-m-diff-btn {
  display: flex; flex-direction: column; align-items: center;
  gap: 6px; padding: 16px 8px;
  background: var(--surface); border: 2px solid transparent;
  border-radius: var(--radius); color: var(--text);
  cursor: pointer; transition: all 0.2s; font-size: 14px;
}
.nmq-m-cat-btn.nmq-m-active, .nmq-m-diff-btn.nmq-m-active {
  border-color: var(--primary); background: rgba(108,92,231,0.15);
  box-shadow: 0 4px 16px rgba(108,92,231,0.3);
}
.nmq-m-cat-btn:hover, .nmq-m-diff-btn:hover { border-color: var(--primary); transform: translateY(-2px); }
.nmq-m-cl { font-size: 13px; font-weight: 700; }
.nmq-m-cc { font-size: 11px; color: var(--text-dim); }

.nmq-m-start-btn {
  padding: 18px 56px;
  background: linear-gradient(135deg, #e17055, #fdcb6e);
  border: none; border-radius: var(--radius);
  color: #fff; font-size: 20px; font-weight: 800;
  letter-spacing: 3px; cursor: pointer; transition: all 0.2s;
  box-shadow: 0 6px 24px rgba(225,112,85,0.4);
}
.nmq-m-start-btn:hover { transform: translateY(-3px); box-shadow: 0 10px 32px rgba(225,112,85,0.6); }
.nmq-m-back-btn {
  padding: 12px 28px;
  background: transparent; border: 1px solid var(--text-dim);
  border-radius: var(--radius); color: var(--text-dim);
  font-size: 15px; cursor: pointer;
}
.nmq-m-back-btn:hover { border-color: var(--text); color: var(--text); }

.nmq-m-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px; flex-wrap: wrap; gap: 10px;
}
.nmq-m-back-sm { background: transparent; border: none; color: var(--text-dim); font-size: 14px; cursor: pointer; padding: 6px 12px; border-radius: 8px; }
.nmq-m-back-sm:hover { background: var(--surface); color: var(--text); }
.nmq-m-hstat { font-size: 16px; font-weight: 700; color: var(--accent); background: var(--surface); padding: 6px 16px; border-radius: 10px; }

.nmq-m-preview-msg {
  text-align: center; font-size: 24px; font-weight: 700;
  color: var(--accent); padding: 12px;
  animation: nmq-m-pulse 1s infinite;
}

.nmq-m-grid {
  display: grid; gap: 14px; padding: 8px 0;
  max-width: 900px; margin: 0 auto;
}

.nmq-m-card {
  aspect-ratio: 1; perspective: 800px;
  cursor: pointer; min-height: 130px;
}
.nmq-m-card-inner {
  width: 100%; height: 100%; position: relative;
  transform-style: preserve-3d;
  transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
}
.nmq-m-card.nmq-m-flipped .nmq-m-card-inner,
.nmq-m-card.nmq-m-matched .nmq-m-card-inner {
  transform: rotateY(180deg);
}
.nmq-m-card-back, .nmq-m-card-front {
  position: absolute; inset: 0;
  backface-visibility: hidden; -webkit-backface-visibility: hidden;
  border-radius: var(--radius);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; padding: 14px 10px; overflow: hidden;
}
.nmq-m-card-back {
  background: linear-gradient(145deg, var(--card), #2a2e45);
  border: 2px solid rgba(108,92,231,0.2);
  font-size: 42px;
}
.nmq-m-card-front {
  transform: rotateY(180deg);
  border: 2px solid transparent;
}
.nmq-m-card-jp { background: linear-gradient(145deg, #1e2a4a, #22263a); border-color: rgba(108,92,231,0.4); }
.nmq-m-card-ans { background: linear-gradient(145deg, #1a3a3a, #1e3050); border-color: rgba(0,206,201,0.4); }
.nmq-m-card-text {
  font-size: 20px; font-weight: 700;
  text-align: center; line-height: 1.25;
  word-break: break-word; hyphens: auto;
  padding: 0 2px;
}
.nmq-m-jp-text {
  font-size: 32px;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 800;
}
.nmq-m-card-sub {
  font-size: 13px;
  color: var(--text-dim);
  text-align: center;
  line-height: 1.3;
  font-style: italic;
}
.nmq-m-card-jp .nmq-m-card-sub {
  font-family: 'Noto Sans JP', sans-serif;
  font-style: normal;
}

.nmq-m-card.nmq-m-matched .nmq-m-card-front {
  border-color: var(--match);
  box-shadow: 0 0 24px rgba(0,184,148,0.4);
}
.nmq-m-card.nmq-m-matched { animation: nmq-m-matchPop 0.5s ease; pointer-events: none; opacity: 0.6; }
.nmq-m-card:not(.nmq-m-flipped):not(.nmq-m-matched):hover .nmq-m-card-back {
  border-color: var(--primary); transform: scale(1.05);
}

/* DONE */
.nmq-m-done-icon { font-size: 72px; animation: nmq-m-bounce 0.5s; }
.nmq-m-done-title {
  font-size: 36px; font-weight: 900; margin: 0;
  background: linear-gradient(135deg, #e17055, #fdcb6e);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.nmq-m-done-grade { font-size: 24px; margin: 0; }
.nmq-m-done-stars { font-size: 40px; letter-spacing: 12px; }
.nmq-m-done-stats { display: flex; gap: 28px; margin: 16px 0; flex-wrap: wrap; justify-content: center; }
.nmq-m-done-stat { display: flex; flex-direction: column; align-items: center; gap: 6px; font-size: 14px; color: var(--text-dim); }
.nmq-m-done-val { font-size: 28px; font-weight: 800; color: var(--accent); }
.nmq-m-done-actions { display: flex; gap: 16px; margin-top: 12px; }

@keyframes nmq-m-pulse { 0%,100% { opacity: 0.6; transform: scale(1); } 50% { opacity: 1; transform: scale(1.05); } }
@keyframes nmq-m-matchPop { 0% { transform: scale(1); } 50% { transform: scale(1.15); } 100% { transform: scale(1); } }
@keyframes nmq-m-bounce { 0% { transform: scale(0.5); opacity: 0; } 60% { transform: scale(1.15); } 100% { transform: scale(1); opacity: 1; } }

/* FULLSCREEN */
.nmq-fullscreen {
  position: fixed !important; top: 0 !important; left: 0 !important; right: 0 !important; bottom: 0 !important;
  width: 100vw !important; height: 100vh !important;
  max-width: 100vw !important; margin: 0 !important;
  z-index: 999999; overflow-y: auto;
  border-radius: 0 !important; padding: 48px !important;
}
.nmq-fs-btn {
  position: fixed; bottom: 24px; right: 24px;
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, #e17055, #fdcb6e);
  border: 3px solid rgba(255,255,255,0.2); color: #fff;
  font-size: 24px; cursor: pointer; z-index: 1000000;
  box-shadow: 0 6px 24px rgba(225,112,85,0.4);
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.nmq-fs-btn:hover { transform: scale(1.1) rotate(90deg); }

/* TABLET */
@media (max-width: 900px) {
  .nmq-m { padding: 28px; max-width: 95%; }
  .nmq-m-lang-grid { grid-template-columns: repeat(3, 1fr); }
  .nmq-m-cat-grid { grid-template-columns: repeat(4, 1fr); }
}

/* MOBILE */
@media (max-width: 600px) {
  .nmq-m { padding: 16px; margin: 8px auto; min-height: auto; }
  .nmq-m-center { gap: 14px; min-height: auto; }
  .nmq-m-logo-icon { font-size: 38px; }
  .nmq-m-logo-text { font-size: 26px; letter-spacing: 4px; }
  .nmq-m-logo-level { font-size: 13px; padding: 3px 14px; }
  .nmq-m-sub { font-size: 14px; }
  .nmq-m-lang-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .nmq-m-lang-btn { padding: 11px 12px; font-size: 13px; gap: 8px; }
  .nmq-m-flag { font-size: 22px; }
  .nmq-m-stitle { font-size: 13px; letter-spacing: 2px; }
  .nmq-m-cat-grid { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .nmq-m-diff-grid { grid-template-columns: repeat(3, 1fr); }
  .nmq-m-cat-btn, .nmq-m-diff-btn { padding: 10px 4px; }
  .nmq-m-cl { font-size: 11px; }
  .nmq-m-cc { font-size: 10px; }
  .nmq-m-start-btn { font-size: 17px; padding: 14px 40px; letter-spacing: 2px; }
  .nmq-m-card { min-height: 95px; }
  .nmq-m-card-text { font-size: 15px; }
  .nmq-m-jp-text { font-size: 26px; }
  .nmq-m-card-sub { font-size: 11px; }
  .nmq-m-card-back { font-size: 34px; }
  .nmq-m-card-back, .nmq-m-card-front { padding: 10px 6px; gap: 5px; }
  .nmq-m-grid { gap: 8px; }
  .nmq-m-hstat { font-size: 13px; padding: 4px 10px; }
  .nmq-m-preview-msg { font-size: 18px; }
  .nmq-m-done-icon { font-size: 50px; }
  .nmq-m-done-title { font-size: 26px; }
  .nmq-m-done-grade { font-size: 18px; }
  .nmq-m-done-stars { font-size: 28px; letter-spacing: 8px; }
  .nmq-m-done-stats { gap: 16px; }
  .nmq-m-done-val { font-size: 20px; }
  .nmq-fs-btn { bottom: 12px; right: 12px; width: 46px; height: 46px; font-size: 20px; }
  .nmq-fullscreen { padding: 16px !important; }
}

/* ═══ LIGHT THEME ═══ */
.nmq-m.nmq-light {
  --bg: #f4f5fa; --surface: #ffffff; --card: #ffffff;
  --text: #1a1a2e; --text-dim: #6b7280;
}
.nmq-m.nmq-light .nmq-m-lang-btn,
.nmq-m.nmq-light .nmq-m-cat-btn,
.nmq-m.nmq-light .nmq-m-diff-btn { box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.nmq-m.nmq-light .nmq-m-card-back { background: linear-gradient(145deg, #ffffff, #eef0f7); }
.nmq-m.nmq-light .nmq-m-card-jp { background: linear-gradient(145deg, #e8f0fe, #d8e6fc); }
.nmq-m.nmq-light .nmq-m-card-ans { background: linear-gradient(145deg, #e0f7f5, #d0f0ec); }

.nmq-theme-btn {
  position: fixed; bottom: 24px; right: 92px;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--surface); border: 3px solid rgba(128,128,128,0.2);
  color: var(--text); font-size: 24px; cursor: pointer; z-index: 1000000;
  box-shadow: 0 6px 24px rgba(0,0,0,0.2);
  display: flex; align-items: center; justify-content: center; transition: all 0.2s;
}
.nmq-theme-btn:hover { transform: scale(1.1); }
@media (max-width: 600px) { .nmq-theme-btn { bottom: 12px; right: 70px; width: 46px; height: 46px; font-size: 20px; } }

/* ═══ HOW TO POPUP ═══ */
.nmq-howto-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.78);
  display: flex; align-items: center; justify-content: center;
  z-index: 100; padding: 20px;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  animation: nmq-howto-fade 0.3s;
}
.nmq-howto-box {
  background: var(--card); border: 2px solid var(--primary);
  border-radius: var(--radius); padding: 32px 28px;
  max-width: 460px; width: 100%; text-align: center;
  box-shadow: 0 16px 56px rgba(0,0,0,0.5);
}
.nmq-howto-icon { font-size: 48px; margin-bottom: 8px; }
.nmq-howto-title { font-size: 22px; font-weight: 800; margin-bottom: 16px; color: var(--accent); }
.nmq-howto-text { font-size: 15px; line-height: 1.9; color: var(--text); text-align: left; margin-bottom: 24px; }
.nmq-howto-btn {
  padding: 14px 48px; border: none; border-radius: var(--radius);
  color: #fff; font-size: 17px; font-weight: 800;
  letter-spacing: 1px; cursor: pointer; transition: all 0.2s;
}
.nmq-howto-btn:hover { transform: translateY(-2px); }
@keyframes nmq-howto-fade { from { opacity: 0; } to { opacity: 1; } }
.nmq-m .nmq-howto-btn { background: linear-gradient(135deg, #e17055, #fdcb6e); }