*{box-sizing:border-box;margin:0;padding:0;font-family:'Pretendard',system-ui,-apple-system,sans-serif}
:root{--bg:#f4f7fb;--card:#fff;--ink:#1f3143;--muted:#7c8b99;--line:#e7edf3;--primary:#5dade2;--primary-soft:#eaf5fc;--accent:#ff9f43;--success:#17a66e;--success-bg:#e6f8f0;--danger:#e84d57;--danger-bg:#fff0f1;--master:#b88419;--master-bg:#fff8e7}
body{background:#d8dee5;display:flex;justify-content:center;min-height:100vh;color:var(--ink)}
button{font:inherit}
.app-container{width:100%;max-width:430px;min-height:100vh;background:var(--bg);box-shadow:0 0 28px rgba(31,49,67,.12);overflow:hidden}
.header{height:68px;padding:10px 15px;background:#fff;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.brand{border:0;background:transparent;text-align:left;cursor:pointer}
.brand-name{display:block;color:var(--primary);font-weight:900;font-size:1.22rem;line-height:1.1}
.brand-sub{display:block;margin-top:3px;color:#9aa7b3;font-weight:650;font-size:.68rem;letter-spacing:.35px}
.lang-switch-btn,.icon-btn,.mini-btn{border:0;background:var(--primary-soft);color:var(--primary);font-weight:900;border-radius:999px;padding:9px 12px;cursor:pointer}
.view-section{padding:22px 15px 30px;min-height:calc(100vh - 68px);display:flex;flex-direction:column;gap:18px}
.hero{text-align:center;padding:16px 6px 2px}
.hero-mark{font-size:2rem;margin-bottom:8px}
.hero h1{font-size:1.75rem;line-height:1.2;letter-spacing:-.6px}
.hero p{color:var(--muted);font-size:.93rem;line-height:1.5;margin:12px auto 0;max-width:330px}
.panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:0 8px 20px rgba(31,49,67,.045)}
.panel h2{font-size:.95rem;margin-bottom:11px}
.grid-menu{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.select-btn{border:2px solid var(--line);background:#fff;padding:13px 8px;border-radius:12px;color:#637281;font-weight:800;cursor:pointer}
.select-btn.active-native{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.select-btn.active-target{border-color:var(--accent);color:#f28a24;background:#fff4e8}
.btn-primary,.btn-secondary{border:0;border-radius:13px;padding:15px 16px;font-weight:850;cursor:pointer}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,159,67,.24)}
.btn-secondary{background:#fff;color:#536474;border:1px solid var(--line)}
.language-summary{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px 12px;text-align:center}
.language-summary div{display:flex;flex-direction:column;gap:4px}
.summary-label{font-size:.62rem;color:var(--muted);font-weight:900;letter-spacing:1px}
.language-summary strong{font-size:.9rem}
.summary-arrow{color:#aab8c4;font-weight:900}
.home-title{text-align:center;padding:8px 0 0}
.home-title h2{font-size:1.34rem;margin-top:4px}
.eyebrow{font-size:.67rem;font-weight:900;letter-spacing:1.5px;color:#8fa0af}
.mode-list{display:flex;flex-direction:column;gap:10px}
.mode-card,.auto-all-card{width:100%;border:1px solid var(--line);background:#fff;border-radius:17px;padding:15px;display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;text-align:left;cursor:pointer;box-shadow:0 6px 17px rgba(31,49,67,.04)}
.mode-icon,.auto-play-icon{font-size:1.55rem}
.mode-card strong,.mode-card small,.auto-all-card strong,.auto-all-card small{display:block}
.mode-card small,.auto-all-card small{color:var(--muted);margin-top:3px;font-size:.75rem}
.chevron{font-size:1.6rem;color:#aab8c4}
.auto-all-card{background:linear-gradient(135deg,#203a57,#2b5c83);color:#fff;border:0}
.auto-all-card small{color:#d4e3ee}
.game-type-card.challenge{border-color:#dde5ef;background:linear-gradient(135deg,#fff,#f6f9fc)}
.subpage-top,.learn-top{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center}
.subpage-top>div,.learn-meta{text-align:center}
.subpage-top strong,.subpage-top span,.learn-meta strong,.learn-meta span{display:block}
.subpage-top span,.learn-meta span{font-size:.75rem;color:var(--muted);margin-top:2px}
.step-list{display:flex;flex-direction:column;gap:10px}
.step-card{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:13px;cursor:pointer;box-shadow:0 5px 16px rgba(31,49,67,.04)}
.step-number{width:46px;height:46px;border-radius:13px;background:var(--primary-soft);display:grid;place-items:center;color:var(--primary);font-weight:900;flex:0 0 46px}
.step-main{flex:1;text-align:left}
.step-main strong{display:block;font-size:.94rem}
.step-main small{display:block;color:var(--muted);margin-top:3px}
.master-card{margin-top:6px;border-color:#ead59f;background:var(--master-bg)}
.master-card .master-icon{background:#ffedbd;color:var(--master);font-size:1.25rem}
.master-card .step-main strong{color:#876111}
.autoplay-btn{border:1px solid var(--line);background:#fff;color:#536474;border-radius:999px;padding:9px 11px;font-size:.76rem;font-weight:850;cursor:pointer}
.autoplay-btn.active{background:#263f5a;color:#fff;border-color:#263f5a}
.progress-track{height:8px;background:#dde6ee;border-radius:999px;overflow:hidden}
.progress-track.compact{height:6px}
.progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--primary),#77c9f2);border-radius:999px;transition:width .25s}
.flashcard{background:#fff;border-radius:22px;padding:30px 20px 24px;text-align:center;border:1px solid var(--line);box-shadow:0 12px 28px rgba(31,49,67,.07);min-height:430px;display:flex;flex-direction:column;justify-content:center}
.meaning-label{font-weight:800;color:var(--accent);font-size:.94rem}
.word-main{font-size:2.75rem;font-weight:950;margin:12px 0 3px;letter-spacing:-1px}
.word-pron{color:var(--muted);font-size:1.08rem;font-weight:650;margin-bottom:18px}
.tts-main{align-self:center;border:1px solid #cce4f4;background:var(--primary-soft);color:#368ec4;border-radius:999px;padding:9px 16px;font-weight:850;cursor:pointer}
.sub-words-area{border-top:1px solid var(--line);margin-top:24px;padding-top:17px;text-align:left}
.sub-word-row{display:flex;justify-content:space-between;align-items:center;padding:8px 2px;color:#536474;font-size:.91rem}
.sub-word-row button{border:0;background:#f0f6fa;border-radius:999px;padding:6px 8px;cursor:pointer}
.learn-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.quiz-question-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px 18px;text-align:center;box-shadow:0 8px 22px rgba(31,49,67,.05)}
.quiz-question-card h2{font-size:2rem;margin-top:8px}
.muted{color:var(--muted)}
.quiz-options{display:flex;flex-direction:column;gap:10px}
.quiz-option-btn{border:2px solid var(--line);background:#fff;border-radius:14px;padding:15px;display:flex;justify-content:space-between;align-items:center;text-align:left;font-weight:820;color:var(--ink);cursor:pointer;transition:.15s}
.quiz-option-btn .answer-mark{font-size:1.35rem;font-weight:900;min-width:28px;text-align:right}
.quiz-option-btn.correct{background:var(--success-bg);border-color:var(--success);color:#08784c}
.quiz-option-btn.incorrect{background:var(--danger-bg);border-color:var(--danger);color:#bd313a}
.quiz-option-btn.dimmed{opacity:.52}
.result-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;text-align:center}
.result-card h2{font-size:1.35rem}
.result-card p{color:var(--muted);margin:6px 0 14px}
.result-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.game-help{background:#eef6fc;color:#55728a;padding:12px 13px;border-radius:13px;font-size:.8rem;line-height:1.5}
.match-board{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.match-card{min-height:88px;border:2px solid var(--line);background:#fff;border-radius:14px;padding:8px 5px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;cursor:pointer;transition:.15s;min-width:0}
.match-card strong{font-size:1.05rem;word-break:break-word}
.match-card small{font-size:.68rem;color:var(--muted);margin-top:4px}
.match-card.selected{border-color:var(--primary);background:var(--primary-soft);transform:scale(.98)}
.match-card.match-ok{border-color:var(--success);background:var(--success-bg);color:#08784c;opacity:.12;pointer-events:none}
.match-card.match-bad{border-color:var(--danger);background:var(--danger-bg);animation:shake .22s}
.mini-btn{padding:8px 11px}
.home-footer{margin-top:10px;padding:18px 6px 4px;text-align:center;border-top:1px solid var(--line);color:var(--muted)}
.footer-brand{font-size:.78rem;font-weight:800;color:#657687}
.footer-actions{display:flex;justify-content:center;align-items:center;gap:9px;margin:10px 0 7px}
.footer-link{border:0;background:transparent;color:#4b91be;font-weight:800;font-size:.8rem;cursor:pointer;padding:3px}
.home-footer small{display:block;font-size:.68rem;line-height:1.45;color:#9aa6b1}
@keyframes shake{0%,100%{transform:translateX(0)}33%{transform:translateX(-5px)}66%{transform:translateX(5px)}}
@media(max-width:360px){.word-main{font-size:2.3rem}.view-section{padding-left:12px;padding-right:12px}.match-card{min-height:88px;border:2px solid var(--line);background:#fff;border-radius:14px;padding:8px 5px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;cursor:pointer;transition:.15s;min-width:0}.match-card strong{font-size:.95rem}}

.sentence-card{border-color:#d7e8f4;background:linear-gradient(135deg,#fff,#f5fbff)}
.sentence-auto{background:linear-gradient(135deg,#375270,#456f94)}
.sentence-learning .word-main{font-size:2.05rem;line-height:1.3;letter-spacing:-.3px}
.sentence-learning{min-height:410px}
.sentence-learning .sub-word-row span{line-height:1.35}
.match-card strong{overflow-wrap:anywhere;line-height:1.15}
@media(max-width:360px){.match-card{min-height:82px;padding:7px 4px}.match-card strong{font-size:.88rem}}

.footer-anchor{text-decoration:none;display:inline-flex;align-items:center}


/* ---------- Global feedback/support ---------- */
.site-support-note{
  margin:22px 18px 92px;
  padding:16px 18px;
  border-radius:16px;
  background:#ffffff;
  border:1px solid #e2eaf0;
  text-align:center;
  color:#6f7e8d;
  font-size:.82rem;
  line-height:1.45;
}
.site-support-note strong{
  display:block;
  margin-bottom:5px;
  color:#2C3E50;
  font-size:.9rem;
}
.site-support-note span{display:block}
.floating-actions{
  position:fixed;
  right:max(14px,calc((100vw - 430px)/2 + 14px));
  bottom:18px;
  z-index:900;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.floating-btn{
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  border-radius:50%;
  background:#ffffff;
  border:1px solid #dfe8ee;
  box-shadow:0 5px 16px rgba(32,55,75,.14);
  text-decoration:none;
  font-size:1.05rem;
  color:#2f7eb0;
  transition:.15s;
}
.floating-btn:hover{transform:translateY(-1px)}
.floating-btn.support{background:#fff;color:#E5484D;border-color:#f0c7c9}
@media(max-width:480px){
  .floating-actions{right:12px;bottom:14px}
  .floating-btn{width:42px;height:42px}
}

.match-card .match-pron{
  display:block;
  margin-top:5px;
  color:#7c8b99;
  font-size:.72rem;
  line-height:1.18;
  font-weight:600;
  overflow-wrap:anywhere;
}
.floating-btn.install{
  border:1px solid #cfe2ef;
  background:#fff;
  color:#2F7EB0;
  font-size:1.65rem;
  line-height:1;
  font-weight:500;
  cursor:pointer;
  font-family:Arial,sans-serif;
}
.floating-btn.install.install-ready{
  box-shadow:0 0 0 3px rgba(93,173,226,.13),0 5px 16px rgba(32,55,75,.14);
}


/* ---------- RC10 FINAL: Match language code + pronunciation ---------- */
.match-card{
  min-width:0;
  overflow:hidden;
}
.match-card .match-word{
  display:block;
  width:100%;
  line-height:1.18;
  overflow-wrap:normal;
  word-break:keep-all;
}
.match-card .match-meta{
  display:flex;
  align-items:baseline;
  justify-content:center;
  flex-wrap:wrap;
  gap:2px 4px;
  width:100%;
  margin-top:6px;
  color:#7c8b99;
  font-size:.70rem;
  line-height:1.2;
  font-weight:600;
  text-align:center;
}
.match-card .match-lang{
  flex:0 0 auto;
  white-space:nowrap;
  font-weight:800;
  color:#657888;
}
.match-card .match-pron-text{
  min-width:0;
  max-width:100%;
  white-space:normal;
  overflow-wrap:anywhere;
  word-break:normal;
}
@media(max-width:360px){
  .match-card .match-meta{
    font-size:.66rem;
    gap:2px 3px;
  }
}

.privacy-link{
  display:inline-block;
  margin-top:8px;
  color:#8a98a5;
  font-size:.73rem;
  text-decoration:underline;
  text-underline-offset:2px;
}