:root{
  --ink:#0F1218;--cyan:#00E5FF;--cyan-50:#E8FCFF;--white:#fff;
  --gray-500:#5B6573;--gray-100:#F2F4F7;--gray-200:#E6EAF0;
  --green:#22C55E;--amber:#F59E0B;--pink:#FF6B9D;--violet:#8B5CF6;
  --shadow:0 6px 24px rgba(15,18,24,.08);
  --shadow-sm:0 2px 8px rgba(15,18,24,.06);
  --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,system-ui,sans-serif;
  color:var(--ink);background:var(--gray-100);
  padding-bottom:84px;-webkit-font-smoothing:antialiased;
}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}

/* ---------- Header ---------- */
header.top{
  position:sticky;top:0;z-index:30;
  background:var(--ink);color:var(--white);
  height:54px;display:flex;align-items:center;padding:0 16px;
}
.top-row{width:100%;max-width:760px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:18px}
.brand .logo{width:30px;height:30px;border-radius:8px;background:var(--cyan);color:var(--ink);display:grid;place-items:center;font-size:16px}
.brand small{display:block;font-weight:500;font-size:11px;color:#9aa3b2;letter-spacing:.5px}
.pills{display:flex;gap:8px}
.pill{background:rgba(255,255,255,.1);border-radius:999px;padding:6px 10px;font-size:12px;font-weight:700;display:flex;align-items:center;gap:4px;white-space:nowrap}

/* ---------- Dashboard ---------- */
.hero{background:var(--ink);color:var(--white);padding:8px 16px 22px}
.hero .wrap{padding:0}
.hello{font-size:14px;color:#9aa3b2;margin-bottom:2px}
.goal-card{background:linear-gradient(135deg,#16202e,#0F1218);border:1px solid #243040;border-radius:var(--radius);padding:18px;margin-top:8px}
.goal-title{font-size:18px;font-weight:800;margin-bottom:2px}
.goal-sub{font-size:13px;color:#9aa3b2;margin-bottom:14px}
.progress{height:12px;background:#243040;border-radius:999px;overflow:hidden}
.progress>span{display:block;height:100%;background:linear-gradient(90deg,var(--cyan),#7af0ff);border-radius:999px;transition:width .6s}
.goal-meta{display:flex;justify-content:space-between;font-size:12px;color:#9aa3b2;margin-top:8px;font-weight:600}
.goal-meta b{color:var(--cyan)}

.mission{margin-top:14px}
.mission h3{font-size:13px;color:#9aa3b2;text-transform:uppercase;letter-spacing:.6px;margin-bottom:8px;font-weight:700}
.mission-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.mchip{background:rgba(255,255,255,.07);border:1px solid #243040;border-radius:12px;padding:10px 6px;text-align:center;font-size:12px;font-weight:600;color:#cfd6e0;display:flex;flex-direction:column;align-items:center;gap:4px}
.mchip .ic{font-size:20px}
.mchip.done{background:rgba(34,197,94,.15);border-color:rgba(34,197,94,.4);color:#bbf7d0}
.mchip.done .ic::after{content:"✓";font-size:11px;color:var(--green)}

/* ---------- Tabs ---------- */
nav.tabs{position:sticky;top:54px;z-index:20;background:var(--white);border-bottom:1px solid var(--gray-200);overflow-x:auto;scrollbar-width:none}
nav.tabs::-webkit-scrollbar{display:none}
.tab-row{max-width:760px;margin:0 auto;display:flex;gap:4px;padding:8px 12px;min-width:max-content}
.tab{padding:9px 14px;border-radius:999px;font-size:14px;font-weight:700;color:var(--gray-500);white-space:nowrap;display:flex;align-items:center;gap:6px}
.tab.active{background:var(--ink);color:var(--white)}
.tab .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);display:none}
.tab.active .dot{display:block}

/* ---------- Content ---------- */
main{padding:18px 0 30px}
.panel{display:none;animation:fade .25s ease}
.panel.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.day-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.day-tag{font-size:13px;font-weight:700;color:var(--gray-500)}
.day-tag b{color:var(--ink)}
.topic-card{background:var(--white);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow-sm);display:flex;align-items:center;gap:12px;margin-bottom:16px}
.topic-card .em{font-size:30px}
.topic-card .t{font-weight:800;font-size:17px}
.topic-card .s{font-size:13px;color:var(--gray-500)}

.card{background:var(--white);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-sm);margin-bottom:14px}
.card h3{font-size:18px;font-weight:800;margin-bottom:4px;display:flex;align-items:center;gap:8px}
.card .hint{font-size:13px;color:var(--gray-500);margin-bottom:14px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--ink);color:var(--white);padding:12px 18px;border-radius:10px;font-weight:700;font-size:15px;transition:.15s}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn.primary{background:var(--cyan);color:var(--ink)}
.btn.ghost{background:var(--gray-100);color:var(--ink)}
.btn.outline{background:transparent;border:2px solid var(--gray-200);color:var(--ink)}
.btn.block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btnrow{display:flex;gap:8px;flex-wrap:wrap}

/* words */
.word{border:1px solid var(--gray-200);border-radius:12px;padding:14px;margin-bottom:10px;cursor:pointer;transition:.15s}
.word:hover{border-color:var(--cyan)}
.word-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.word-en{font-weight:800;font-size:18px}
.word-ru{font-size:14px;color:var(--gray-500)}
.word-def{font-size:14px;color:var(--ink);margin-top:8px;display:none}
.word-ex{font-size:13px;color:var(--gray-500);margin-top:6px;font-style:italic;display:none}
.word.open .word-def,.word.open .word-ex{display:block}
.play{width:36px;height:36px;border-radius:50%;background:var(--cyan-50);color:var(--ink);display:grid;place-items:center;font-size:16px;flex-shrink:0}
.play:hover{background:var(--cyan)}
.stars{font-size:12px;color:var(--amber);margin-top:6px;display:none}
.word.open .stars{display:block}

/* dialogue */
.lines{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}
.line{display:flex;gap:10px;max-width:88%}
.line.B{align-self:flex-end;flex-direction:row-reverse}
.bubble{background:var(--gray-100);border-radius:14px;padding:10px 14px;font-size:15px}
.line.B .bubble{background:var(--cyan-50)}
.bubble .who{font-size:11px;font-weight:800;color:var(--gray-500);margin-bottom:2px;text-transform:uppercase;letter-spacing:.4px}
.bubble .tr{font-size:12px;color:var(--gray-500);margin-top:6px;font-style:italic;display:none}
.line.show-tr .bubble .tr{display:block}

/* quiz */
.q{margin-bottom:16px}
.q .qt{font-weight:700;margin-bottom:8px;font-size:15px}
.opts{display:flex;flex-direction:column;gap:6px}
.opt{border:1.5px solid var(--gray-200);border-radius:10px;padding:11px 14px;font-size:14px;text-align:left;transition:.12s;font-weight:500}
.opt:hover{border-color:var(--cyan)}
.opt.correct{background:#dcfce7;border-color:var(--green);font-weight:700}
.opt.wrong{background:#fee2e2;border-color:#ef4444}
.opt.disabled{pointer-events:none}
.explain{font-size:13px;color:var(--gray-500);margin-top:6px;padding:8px 10px;background:var(--gray-100);border-radius:8px;display:none}
.explain.show{display:block}
.score{font-weight:800;text-align:center;padding:10px;border-radius:10px;background:var(--cyan-50);margin-top:10px;display:none}
.score.show{display:block}

/* listening */
.audio-controls{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.speed{display:flex;gap:4px;background:var(--gray-100);border-radius:999px;padding:4px}
.speed button{padding:6px 12px;border-radius:999px;font-size:13px;font-weight:700;color:var(--gray-500)}
.speed button.on{background:var(--white);color:var(--ink);box-shadow:var(--shadow-sm)}
.listen-text{background:var(--gray-100);border-radius:12px;padding:14px;font-size:15px;line-height:1.7;display:none;margin-bottom:14px}
.listen-text.show{display:block}
.rec-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:#ef4444;padding:4px 10px;background:#fee2e2;border-radius:999px}
.rec-badge .blink{width:8px;height:8px;border-radius:50%;background:#ef4444;animation:blink 1s infinite}
@keyframes blink{50%{opacity:.3}}

/* speaking */
.speak-box{display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;padding:20px;background:var(--gray-100);border-radius:var(--radius);margin-bottom:14px}
.mic{width:72px;height:72px;border-radius:50%;background:var(--ink);color:var(--white);font-size:30px;display:grid;place-items:center;transition:.2s}
.mic.rec{background:#ef4444;animation:pulse 1.2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(239,68,68,.4)}50%{box-shadow:0 0 0 16px rgba(239,68,68,0)}}
.transcript{width:100%;background:var(--white);border-radius:12px;padding:14px;min-height:60px;font-size:15px;text-align:left}
.transcript .ph{color:var(--gray-500)}
.match{font-size:14px;font-weight:700;padding:6px 14px;border-radius:999px}
.match.good{background:#dcfce7;color:#15803d}
.match.ok{background:#fef9c3;color:#a16207}
.match.bad{background:#fee2e2;color:#b91c1c}
.target{background:#fffbeb;border:1px solid #fde68a;border-radius:12px;padding:12px;font-size:14px;display:none}
.target.show{display:block}
.target b{display:block;margin-bottom:4px;color:#a16207}

/* writing */
textarea{width:100%;border:1.5px solid var(--gray-200);border-radius:12px;padding:12px;font:inherit;font-size:15px;resize:vertical;min-height:120px;transition:.15s}
textarea:focus{outline:none;border-color:var(--cyan)}
.model{background:#f0fdf4;border:1px solid #bbf7d0;border-radius:12px;padding:14px;font-size:14px;display:none;margin-top:10px}
.model.show{display:block}
.model b{display:block;color:#15803d;margin-bottom:6px}
.tips{font-size:13px;color:var(--gray-500);margin-top:10px;padding:10px 12px;background:var(--cyan-50);border-radius:8px}

/* done bar */
.done-bar{position:fixed;left:0;right:0;bottom:0;z-index:40;background:var(--white);border-top:1px solid var(--gray-200);padding:10px 16px;box-shadow:0 -4px 16px rgba(15,18,24,.06)}
.done-bar .wrap{display:flex;align-items:center;gap:12px;max-width:760px}
.done-bar .info{flex:1;font-size:13px;font-weight:600;color:var(--gray-500)}
.done-bar .info b{color:var(--ink)}
.done-btn{background:var(--cyan);color:var(--ink);padding:12px 22px;border-radius:10px;font-weight:800;font-size:15px}
.done-btn.done{background:var(--green);color:var(--white)}

/* toast */
.toast{position:fixed;bottom:100px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--ink);color:var(--white);padding:12px 20px;border-radius:999px;font-weight:700;font-size:14px;z-index:60;opacity:0;pointer-events:none;transition:.3s}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

@media(max-width:640px){
  body{font-size:16px}
  .mission-grid{grid-template-columns:repeat(3,1fr)}
  .card{padding:16px}
  .done-btn{padding:12px 18px}
}
@media(min-width:641px){
  .hero{padding:12px 16px 26px}
}