/**
 * NIHONGO MASTER FLASHCARD v2.0 — PC Friendly
 */
.nmq-fc {
  --bg: #0f1117;
  --surface: #1a1d27;
  --card: #22263a;
  --card-back: #1e3a5f;
  --primary: #6c5ce7;
  --accent: #00cec9;
  --text: #f0f0f0;
  --text-dim: #8892b0;
  --easy: #00b894;
  --medium: #fdcb6e;
  --hard: #e17055;
  --radius: 18px;
  --shadow: 0 12px 48px rgba(0,0,0,0.4);

  font-family: 'Noto Sans', 'Noto Sans JP', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 600px;
  max-width: 1000px;
  width: 100%;
  margin: 24px auto;
  padding: 40px 40px 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: relative;
  user-select: none;
  -webkit-user-select: none;
}
@media (max-width: 900px) {
  .nmq-fc { padding: 28px 24px 20px; margin: 16px auto; }
}
@media (max-width: 600px) {
  .nmq-fc { padding: 20px 12px 20px; margin: 0; border-radius: 0; min-height: 100vh; }
}
.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-fc-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 520px;
  gap: 20px;
}

/* LOGO */
.nmq-fc-logo { text-align: center; margin-bottom: 16px; }
.nmq-fc-logo-icon { font-size: 56px; display: block; }
.nmq-fc-logo-text {
  font-size: 40px; font-weight: 900; letter-spacing: 6px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.nmq-fc-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-fc-subtitle { color: var(--text-dim); font-size: 18px; }

/* LANGUAGE GRID */
.nmq-fc-lang-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  width: 100%;
  max-width: 800px;
}
.nmq-fc-lang-btn {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 20px;
  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-fc-lang-btn:hover {
  border-color: var(--primary);
  background: var(--card);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(108,92,231,0.3);
}
.nmq-fc-flag { font-size: 28px; }

/* CATEGORY GRID */
.nmq-fc-section-title {
  color: var(--text-dim);
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin: 0;
  font-weight: 700;
}
.nmq-fc-cat-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  width: 100%;
  max-width: 800px;
}
.nmq-fc-cat-btn {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 18px 10px;
  background: var(--surface);
  border: 2px solid transparent;
  border-radius: var(--radius);
  color: var(--text); cursor: pointer;
  transition: all 0.2s;
}
.nmq-fc-cat-btn.nmq-fc-active {
  border-color: var(--primary);
  background: rgba(108,92,231,0.15);
  box-shadow: 0 4px 16px rgba(108,92,231,0.3);
}
.nmq-fc-cat-btn:hover { border-color: var(--primary); transform: translateY(-2px); }
.nmq-fc-cat-emoji { font-size: 28px; }
.nmq-fc-cat-label { font-size: 14px; font-weight: 700; }
.nmq-fc-cat-count { font-size: 12px; color: var(--text-dim); }

/* SETTINGS */
.nmq-fc-settings {
  display: flex; gap: 24px; margin: 12px 0;
  flex-wrap: wrap; justify-content: center;
}
.nmq-fc-toggle {
  display: flex; align-items: center; gap: 8px;
  font-size: 15px; color: var(--text-dim); cursor: pointer;
}
.nmq-fc-toggle input { accent-color: var(--primary); transform: scale(1.3); }

/* BUTTONS */
.nmq-fc-start-btn {
  padding: 18px 64px;
  background: linear-gradient(135deg, var(--primary), #a855f7);
  border: none; border-radius: var(--radius);
  color: #fff; font-size: 22px; font-weight: 800;
  letter-spacing: 3px; cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 6px 24px rgba(108,92,231,0.4);
}
.nmq-fc-start-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(108,92,231,0.6);
}
.nmq-fc-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;
  transition: all 0.2s;
}
.nmq-fc-back-btn:hover { border-color: var(--text); color: var(--text); }

/* FLASHCARD HEADER */
.nmq-fc-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px; flex-wrap: wrap; gap: 12px;
}
.nmq-fc-back-sm {
  background: transparent; border: none;
  color: var(--text-dim); font-size: 15px;
  cursor: pointer; padding: 6px 12px;
  border-radius: 8px;
}
.nmq-fc-back-sm:hover { background: var(--surface); color: var(--text); }
.nmq-fc-counter { font-size: 18px; font-weight: 800; color: var(--accent); }
.nmq-fc-round { font-size: 14px; color: var(--text-dim); }

/* PROGRESS BAR */
.nmq-fc-progress-bar {
  width: 100%; height: 6px;
  background: var(--surface);
  border-radius: 3px;
  margin-bottom: 28px; overflow: hidden;
}
.nmq-fc-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 3px;
  transition: width 0.4s ease;
}

/* CARD */
.nmq-fc-card-wrap {
  perspective: 1500px;
  width: 100%;
  max-width: 600px;
  height: 380px;
  margin: 0 auto 24px;
  cursor: pointer;
}
.nmq-fc-card {
  width: 100%; height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.nmq-fc-flipped { transform: rotateY(180deg); }

.nmq-fc-card-front, .nmq-fc-card-back {
  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: 12px; padding: 36px;
  box-shadow: var(--shadow);
}
.nmq-fc-card-front {
  background: linear-gradient(145deg, var(--card), #2a2e45);
  border: 2px solid rgba(108,92,231,0.3);
}
.nmq-fc-card-back {
  background: linear-gradient(145deg, var(--card-back), #1a3050);
  border: 2px solid rgba(0,206,201,0.3);
  transform: rotateY(180deg);
}
.nmq-fc-cat-badge {
  position: absolute; top: 16px; left: 20px;
  font-size: 13px; color: var(--text-dim);
  background: rgba(255,255,255,0.05);
  padding: 4px 14px; border-radius: 14px;
}
.nmq-fc-jp {
  font-size: 84px; font-weight: 900;
  font-family: 'Noto Sans JP', sans-serif;
  line-height: 1.2; text-align: center;
  text-shadow: 0 4px 12px rgba(0,0,0,0.4);
}
.nmq-fc-reading {
  font-size: 24px;
  color: var(--accent);
  font-family: 'Noto Sans JP', sans-serif;
}
.nmq-fc-hint {
  position: absolute; bottom: 20px;
  font-size: 15px; color: var(--text-dim);
  animation: nmq-fc-pulse 2s infinite;
}
.nmq-fc-answer {
  font-size: 44px; font-weight: 700;
  text-align: center; line-height: 1.3;
  color: var(--accent);
}
.nmq-fc-en-sub {
  font-size: 20px; color: var(--text-dim); font-style: italic;
}
.nmq-fc-jp-small {
  position: absolute; bottom: 20px;
  font-size: 16px; color: var(--text-dim);
  font-family: 'Noto Sans JP', sans-serif;
}

/* SRS BUTTONS */
.nmq-fc-action { min-height: 80px; display: flex; align-items: center; justify-content: center; }
.nmq-fc-srs-buttons {
  display: flex; gap: 16px;
  justify-content: center; margin-bottom: 20px;
  animation: nmq-fc-slideUp 0.3s ease;
}
.nmq-fc-srs {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 16px 36px;
  border: 2px solid transparent;
  border-radius: var(--radius);
  color: #fff; font-size: 16px; font-weight: 700;
  cursor: pointer; transition: all 0.2s; min-width: 110px;
}
.nmq-fc-srs-wrong { background: rgba(225,112,85,0.2); border-color: var(--hard); color: #fff; }
.nmq-fc-srs-wrong:hover { background: rgba(225,112,85,0.45); transform: translateY(-3px); }
.nmq-fc-srs-correct { background: rgba(0,184,148,0.2); border-color: var(--easy); color: #fff; }
.nmq-fc-srs-correct:hover { background: rgba(0,184,148,0.45); transform: translateY(-3px); }
.nmq-fc-srs-icon { font-size: 28px; font-weight: 900; }
.nmq-fc-swipe-hint { text-align: center; color: var(--text-dim); font-size: 15px; margin-bottom: 20px; }

/* HOW TO POPUP */
.nmq-howto-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex; align-items: center; justify-content: center;
  z-index: 100; padding: 20px;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  animation: nmq-fc-fadeIn 0.3s;
}
.nmq-howto-box {
  background: var(--card); border: 2px solid var(--primary);
  border-radius: var(--radius); padding: 32px 28px;
  max-width: 440px; 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;
  background: linear-gradient(135deg, var(--primary), #a855f7);
  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); box-shadow: 0 6px 20px rgba(108,92,231,0.5); }
@keyframes nmq-fc-fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* STATS */
.nmq-fc-stats-bar {
  display: flex; justify-content: center; gap: 32px; padding: 12px;
}
.nmq-fc-stat { font-size: 16px; font-weight: 700; }
.nmq-fc-stat-easy { color: var(--easy); }
.nmq-fc-stat-med { color: var(--medium); }
.nmq-fc-stat-hard { color: var(--hard); }

/* DONE */
.nmq-fc-done-icon { font-size: 80px; animation: nmq-fc-bounce 0.6s ease; }
.nmq-fc-done-title {
  font-size: 36px; font-weight: 900; margin: 0;
  background: linear-gradient(135deg, var(--easy), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.nmq-fc-done-msg { color: var(--text-dim); font-size: 18px; }
.nmq-fc-done-stats { display: flex; gap: 32px; margin: 20px 0; flex-wrap: wrap; justify-content: center; }
.nmq-fc-done-stat {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  font-size: 16px;
}
.nmq-fc-done-circle {
  width: 80px; height: 80px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 800;
}
.nmq-fc-done-easy { background: rgba(0,184,148,0.2); color: var(--easy); border: 3px solid var(--easy); }
.nmq-fc-done-med { background: rgba(253,203,110,0.15); color: var(--medium); border: 3px solid var(--medium); }
.nmq-fc-done-hard { background: rgba(225,112,85,0.2); color: var(--hard); border: 3px solid var(--hard); }
.nmq-fc-done-rounds { color: var(--text-dim); font-size: 15px; }
.nmq-fc-done-actions { display: flex; gap: 16px; margin-top: 12px; }

/* ANIMATIONS */
@keyframes nmq-fc-pulse { 0%,100% { opacity: 0.5; } 50% { opacity: 1; } }
@keyframes nmq-fc-slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes nmq-fc-bounce { 0% { transform: scale(0.5); opacity: 0; } 60% { transform: scale(1.2); } 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, var(--primary), #a855f7);
  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(108,92,231,0.4);
  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-fc { padding: 28px; max-width: 95%; }
  .nmq-fc-lang-grid { grid-template-columns: repeat(3, 1fr); }
  .nmq-fc-cat-grid { grid-template-columns: repeat(4, 1fr); }
  .nmq-fc-jp { font-size: 64px; }
  .nmq-fc-card-wrap { height: 320px; }
}

/* MOBILE */
@media (max-width: 600px) {
  .nmq-fc { padding: 16px; margin: 8px auto; min-height: auto; }
  .nmq-fc-center { gap: 14px; min-height: auto; }
  .nmq-fc-logo-icon { font-size: 40px; }
  .nmq-fc-logo-text { font-size: 26px; letter-spacing: 4px; }
  .nmq-fc-logo-level { font-size: 13px; padding: 3px 14px; }
  .nmq-fc-subtitle { font-size: 14px; }
  .nmq-fc-lang-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .nmq-fc-lang-btn { padding: 12px; font-size: 13px; gap: 8px; }
  .nmq-fc-flag { font-size: 22px; }
  .nmq-fc-section-title { font-size: 13px; letter-spacing: 2px; }
  .nmq-fc-cat-grid { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .nmq-fc-cat-btn { padding: 12px 4px; }
  .nmq-fc-cat-emoji { font-size: 22px; }
  .nmq-fc-cat-label { font-size: 12px; }
  .nmq-fc-cat-count { font-size: 10px; }
  .nmq-fc-settings { gap: 12px; }
  .nmq-fc-toggle { font-size: 13px; }
  .nmq-fc-start-btn { font-size: 17px; padding: 14px 40px; letter-spacing: 2px; }
  .nmq-fc-card-wrap { height: 260px; max-width: 100%; }
  .nmq-fc-card-front, .nmq-fc-card-back { padding: 20px; }
  .nmq-fc-jp { font-size: 48px; }
  .nmq-fc-reading { font-size: 18px; }
  .nmq-fc-answer { font-size: 28px; }
  .nmq-fc-en-sub { font-size: 15px; }
  .nmq-fc-srs { padding: 12px 18px; min-width: 80px; font-size: 13px; }
  .nmq-fc-srs-icon { font-size: 20px; }
  .nmq-fc-done-icon { font-size: 56px; }
  .nmq-fc-done-title { font-size: 26px; }
  .nmq-fc-done-stats { gap: 16px; }
  .nmq-fc-done-circle { width: 60px; height: 60px; font-size: 18px; }
  .nmq-fs-btn { bottom: 12px; right: 12px; width: 46px; height: 46px; font-size: 20px; }
  .nmq-fullscreen { padding: 16px !important; }
}

/* ═══ LIGHT THEME ═══ */
.nmq-fc.nmq-light {
  --bg: #f4f5fa; --surface: #ffffff; --card: #ffffff; --card-back: #e8f0fe;
  --text: #1a1a2e; --text-dim: #6b7280;
  --shadow: 0 12px 48px rgba(0,0,0,0.12);
}
.nmq-fc.nmq-light .nmq-fc-lang-btn,
.nmq-fc.nmq-light .nmq-fc-cat-btn { box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.nmq-fc.nmq-light .nmq-fc-card-front { background: linear-gradient(145deg, #ffffff, #f0f2f8); }
.nmq-fc.nmq-light .nmq-fc-card-back { background: linear-gradient(145deg, #e8f0fe, #d8e6fc); }

.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; } }

/* ═══ EXAMPLE SENTENCE — Separated from card, scrollable, mobile-friendly ═══ */
.nmq-fc-example-area {
  width: 100%;
  max-width: 600px;
  margin: 16px auto 0;
  padding: 0 12px 80px;
  box-sizing: border-box;
  animation: nmq-fc-ex-fadein 0.4s ease;
}
@keyframes nmq-fc-ex-fadein {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.nmq-fc-example {
  padding: 16px 20px;
  background: linear-gradient(135deg, rgba(0,206,201,0.10), rgba(108,92,231,0.06));
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
  box-shadow: 0 4px 18px rgba(0,0,0,0.15);
}
.nmq-fc-ex-label {
  font-size: 12px;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}
.nmq-fc-ex-jp {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  word-break: keep-all;
}
.nmq-fc-ex-reading {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.5;
}
.nmq-fc-ex-en {
  font-size: 16px;
  color: var(--text-dim);
  font-style: italic;
  line-height: 1.5;
}
/* Tablet */
@media (max-width: 900px) {
  .nmq-fc-ex-jp { font-size: 20px; }
  .nmq-fc-ex-reading { font-size: 14px; }
  .nmq-fc-ex-en { font-size: 15px; }
}
/* Mobile */
@media (max-width: 600px) {
  .nmq-fc-example-area { padding: 0 8px 100px; margin-top: 12px; }
  .nmq-fc-example { padding: 12px 16px; gap: 6px; }
  .nmq-fc-ex-label { font-size: 11px; }
  .nmq-fc-ex-jp { font-size: 18px; line-height: 1.45; }
  .nmq-fc-ex-reading { font-size: 13px; }
  .nmq-fc-ex-en { font-size: 14px; }
}
/* Light theme */
.nmq-fc.nmq-light .nmq-fc-example {
  background: linear-gradient(135deg, rgba(0,140,135,0.08), rgba(108,92,231,0.05));
  box-shadow: 0 4px 18px rgba(0,0,0,0.08);
}
.nmq-fc.nmq-light .nmq-fc-ex-jp { color: #1a1a2e; }
.nmq-fc.nmq-light .nmq-fc-ex-reading { color: #4a5568; }
.nmq-fc.nmq-light .nmq-fc-ex-en { color: #4a5568; }