:root{
  --bg:#f4f0e8;
  --bg-deep:#ece5da;
  --card:#fffdf9;
  --card-soft:#f9f6f0;
  --text:#171816;
  --muted:#77736b;
  --muted-2:#a29d94;
  --line:#ddd6cb;
  --line-soft:#ebe5dc;
  --accent:#171816;
  --warm:#b96f4b;
  --warm-soft:#efe0d4;
  --success:#46634f;
  --danger:#a33d35;
  --radius:24px;
  --radius-sm:16px;
  --shadow:0 14px 38px rgba(35,28,19,.065);
  --shadow-soft:0 7px 22px rgba(35,28,19,.045);
}

*{box-sizing:border-box}
html{background:var(--bg)}
html,body{margin:0;min-height:100%;color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
body{background:radial-gradient(circle at 20% -10%,#fffaf3 0,transparent 28rem),var(--bg)}
button,input,select,textarea{font:inherit}
button{touch-action:manipulation}
svg{width:1em;height:1em;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
[hidden]{display:none!important}

.app-shell{max-width:780px;min-height:100dvh;margin:0 auto;padding:0 18px 118px}
.topbar{display:flex;justify-content:space-between;align-items:flex-start;padding:28px 2px 18px}
.brand-lockup{min-width:0}
.eyebrow,.section-kicker,.field-label,.result-label,.answer-label{font-size:9px;letter-spacing:.19em;color:var(--muted);font-weight:700}
.topbar h1{margin:4px 0 3px;font-family:Georgia,"Times New Roman",serif;font-size:30px;line-height:1;letter-spacing:.015em}
.topbar p{margin:0;color:var(--muted);font-size:12px}
.version{font-size:10px;color:var(--muted);padding:5px 8px;border:1px solid var(--line);border-radius:999px;background:rgba(255,253,249,.55)}

.view{display:none;animation:viewIn .22s ease}
.view.active{display:block}
@keyframes viewIn{from{opacity:.15;transform:translateY(5px)}to{opacity:1;transform:none}}
.section-head{margin:18px 2px 20px}
.section-head h2{font-family:Georgia,"Times New Roman",serif;font-size:39px;font-weight:500;line-height:1.02;margin:4px 0 8px;letter-spacing:-.018em}
.section-head p{margin:0;color:var(--muted);font-size:13px;line-height:1.45}
.compact-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px}
.compact-head p{padding-bottom:4px;text-align:right}

.card{background:rgba(255,253,249,.96);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.language-card{display:grid;grid-template-columns:minmax(0,1fr) 48px minmax(0,1fr);gap:8px;align-items:end;padding:12px;margin-bottom:13px}
.language-field{min-width:0}
.field-label{display:block;margin:0 0 7px 7px}
.language-field select{width:100%;min-width:0;height:50px;border:0;border-radius:15px;background:var(--card-soft);padding:0 38px 0 13px;color:var(--text);font-weight:600;font-size:13px;outline:none;cursor:pointer}
.language-field select:focus{box-shadow:0 0 0 2px rgba(23,24,22,.11)}
.swap{width:44px;height:44px;margin:0 auto 3px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--text);display:grid;place-items:center;cursor:pointer;transition:.18s ease}
.swap svg{font-size:21px}
.swap:hover{transform:translateY(-1px);box-shadow:var(--shadow-soft)}
.swap:active{transform:scale(.96)}

.composer-card{padding:17px 17px 13px}
textarea{width:100%;min-height:175px;resize:vertical;border:0;outline:0;background:transparent;font-family:Georgia,"Times New Roman",serif;font-size:23px;line-height:1.5;color:var(--text);padding:1px 2px 14px}
textarea::placeholder{color:#aaa49b}
.composer-footer{border-top:1px solid var(--line-soft);padding-top:12px;display:flex;align-items:center;gap:10px;color:var(--muted);font-size:11px}
.shortcut-hint{margin-left:auto;color:var(--muted-2)}
.primary,.secondary,.text-button{border-radius:999px;cursor:pointer;transition:.16s ease;white-space:nowrap}
.primary,.secondary{min-height:44px;padding:0 17px;border:1px solid var(--accent)}
.primary{background:var(--accent);color:#fff}
.secondary{background:transparent;color:var(--text);border-color:var(--line)}
.primary:hover,.secondary:hover{transform:translateY(-1px);box-shadow:var(--shadow-soft)}
.primary:active,.secondary:active{transform:scale(.985)}
button:disabled{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:none!important}
.translate-button{display:flex;align-items:center;gap:8px;margin-left:2px;padding-left:20px;padding-right:16px}
.translate-button svg{font-size:17px}

.translate-loading{margin-top:13px;padding:16px 18px;display:flex;align-items:center;gap:13px}
.translate-loading strong{display:block;font-size:13px;margin-bottom:2px}
.translate-loading span:not(.spinner){display:block;color:var(--muted);font-size:11px}
.spinner{width:22px;height:22px;border:2px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin .72s linear infinite;flex:0 0 auto}
@keyframes spin{to{transform:rotate(360deg)}}

.result-card{margin-top:13px;padding:19px}
.result-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}
.result-heading>div{display:flex;align-items:center;gap:9px}
.result-language{font-size:10px;color:var(--muted);padding-left:9px;border-left:1px solid var(--line)}
.result-badge{font-size:9px;letter-spacing:.12em;font-weight:700;color:var(--warm);background:var(--warm-soft);border-radius:999px;padding:6px 8px}
.translated-text{font-family:Georgia,"Times New Roman",serif;font-size:28px;line-height:1.4;letter-spacing:-.01em;margin:15px 0 14px}
.translation-note{color:var(--muted);font-size:12px;line-height:1.55;background:var(--card-soft);border-radius:13px;padding:10px 12px;margin:0 0 15px}
.result-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;padding-top:2px}
.action-button{display:flex;align-items:center;gap:7px;min-height:40px;padding:0 14px;font-size:12px}
.action-button svg{font-size:15px}
.status{min-height:22px;padding:9px 4px 0;font-size:12px;color:var(--muted)}
.status.error{color:var(--danger)}

.vocab-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:13px}
.vocab-summary>div{background:rgba(255,253,249,.72);border:1px solid var(--line);border-radius:18px;padding:13px 12px;display:grid;gap:2px}
.vocab-summary strong{font-family:Georgia,"Times New Roman",serif;font-size:24px;font-weight:500}
.vocab-summary span{font-size:10px;color:var(--muted)}
.toolbar{display:flex;align-items:center;gap:9px;padding:8px 10px 8px 13px;margin-bottom:13px;box-shadow:var(--shadow-soft)}
.search-wrap{display:flex;align-items:center;gap:9px;flex:1;min-width:0}
.search-wrap svg{font-size:16px;color:var(--muted);flex:0 0 auto}
.search-wrap input{width:100%;height:40px;border:0;background:transparent;outline:0;color:var(--text)}
.search-wrap input::placeholder{color:var(--muted-2)}
.text-button{border:0;background:transparent;padding:9px 9px;color:var(--muted);font-size:11px}
.text-button:hover{color:var(--danger)}
.vocab-list{display:grid;gap:10px}
.vocab-item{background:rgba(255,253,249,.96);border:1px solid var(--line);border-radius:20px;padding:15px 15px 13px;box-shadow:var(--shadow-soft)}
.vocab-top{display:flex;justify-content:space-between;gap:12px}
.vocab-copy{min-width:0}
.vocab-source{font-size:13px;font-weight:650;line-height:1.35;color:var(--muted)}
.vocab-target{font-family:Georgia,"Times New Roman",serif;font-size:22px;line-height:1.35;margin-top:5px}
.vocab-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:13px;padding-top:10px;border-top:1px solid var(--line-soft)}
.lang-pair{display:flex;gap:5px;align-items:center;color:var(--muted);font-size:10px}
.lang-chip{background:var(--card-soft);padding:5px 7px;border-radius:999px;font-weight:650}
.vocab-score{font-size:10px;color:var(--muted)}
.icon-btn{width:33px;height:33px;border:1px solid transparent;border-radius:50%;background:transparent;color:var(--muted-2);cursor:pointer;font-size:18px;display:grid;place-items:center;flex:0 0 auto}
.icon-btn:hover{border-color:var(--line);color:var(--danger);background:var(--card-soft)}
.empty-card,.empty-state{text-align:center;color:var(--muted)}
.empty-card{padding:36px 20px}
.empty-state{padding:24px 10px}
.empty-card h3,.empty-state h3{margin:11px 0 6px;color:var(--text);font-family:Georgia,"Times New Roman",serif;font-weight:500;font-size:21px}
.empty-card p,.empty-state p{margin:0 auto 18px;max-width:330px;font-size:12px;line-height:1.5}
.empty-icon{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;margin:0 auto;background:var(--warm-soft);color:var(--warm);font-family:Georgia,"Times New Roman",serif;font-size:18px}

.practice-progress{margin:0 2px 12px}
.progress-copy{display:flex;justify-content:space-between;color:var(--muted);font-size:10px;margin-bottom:7px}
.progress-track{height:4px;border-radius:999px;background:var(--line);overflow:hidden}
.progress-track span{display:block;height:100%;width:0;background:var(--warm);border-radius:inherit;transition:width .25s ease}
.practice-card{padding:23px;min-height:360px;display:grid;align-items:center}
.practice-meta{display:inline-flex;align-items:center;padding:6px 9px;border-radius:999px;background:var(--card-soft);font-size:9px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);font-weight:700}
.practice-prompt{font-family:Georgia,"Times New Roman",serif;font-size:34px;line-height:1.28;letter-spacing:-.015em;margin:33px 0 30px;text-align:center}
.wide{width:100%}
.reveal-button{min-height:48px;background:var(--card-soft);font-weight:650}
.practice-answer-wrap{margin-top:22px;padding:20px 3px 2px;border-top:1px solid var(--line)}
.answer-label{display:block;margin-bottom:8px}
.practice-answer{font-family:Georgia,"Times New Roman",serif;font-size:26px;line-height:1.4}
.practice-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:22px}
.grade-button{min-height:64px;border-radius:18px;display:flex;align-items:center;justify-content:flex-start;gap:10px;text-align:left;padding:9px 13px;white-space:normal}
.grade-button .grade-icon{font-size:20px;min-width:22px;text-align:center}
.grade-button strong,.grade-button small{display:block}
.grade-button strong{font-size:12px}
.grade-button small{font-size:9px;margin-top:2px;opacity:.7}

.bottom-nav{position:fixed;z-index:20;left:50%;bottom:12px;transform:translateX(-50%);width:min(720px,calc(100% - 24px));display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:7px;background:rgba(255,253,249,.91);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid rgba(207,199,188,.9);border-radius:24px;box-shadow:0 14px 36px rgba(35,28,19,.14)}
.nav-btn{position:relative;border:0;background:transparent;color:var(--muted);display:grid;gap:3px;justify-items:center;align-content:center;min-height:57px;border-radius:18px;font-size:9px;cursor:pointer;transition:.18s ease}
.nav-icon{height:24px;display:grid;place-items:center}
.nav-icon svg{font-size:21px}
.nav-btn.active{color:var(--text);background:var(--card-soft);font-weight:700}
.nav-btn.active:after{content:"";position:absolute;bottom:5px;width:4px;height:4px;border-radius:50%;background:var(--warm)}

.toast{position:fixed;z-index:50;left:50%;bottom:94px;transform:translateX(-50%);max-width:min(420px,calc(100% - 36px));padding:11px 15px;border-radius:999px;background:#171816;color:#fff;font-size:11px;box-shadow:0 10px 30px rgba(0,0,0,.18);animation:toastIn .2s ease}
.toast.error{background:#7e2d27}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%,0)}}

@media(max-width:520px){
  .app-shell{padding-left:13px;padding-right:13px;padding-bottom:112px}
  .topbar{padding-top:22px}
  .topbar h1{font-size:27px}
  .section-head h2{font-size:35px}
  .compact-head{display:block}
  .compact-head p{text-align:left;padding:0;margin-top:2px}
  .language-card{grid-template-columns:minmax(0,1fr) 42px minmax(0,1fr);padding:10px;gap:5px}
  .language-field select{font-size:12px;padding-left:10px}
  textarea{font-size:21px;min-height:160px}
  .shortcut-hint{display:none}
  .composer-footer{justify-content:space-between}
  .translate-button{margin-left:auto}
  .translated-text{font-size:25px}
  .practice-prompt{font-size:30px}
}

@media(min-width:700px){
  .app-shell{padding-left:30px;padding-right:30px}
  .topbar{padding-top:34px}
  .section-head h2{font-size:43px}
}

@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}