:root{--void: #0b0e14;--navy: #121a2b;--indigo: #1e2a4a;--rose: #e85a7a;--gold: #c8f542;--teal: #3ddc97;--parchment: #e8dcc8;--orange: #ff6b35;--smoke: #8b93a7;--holo: #f4f7fb;--font-display: "Playfair Display", Georgia, serif;--font-body: "DM Sans", system-ui, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, monospace;--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-top: env(safe-area-inset-top, 0px);--radius: 16px;--radius-sm: 10px;--shadow: 0 12px 40px rgba(0, 0, 0, .45)}*,*:before,*:after{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;font-family:var(--font-body);background:radial-gradient(ellipse 80% 50% at 90% 0%,rgba(30,42,74,.55),transparent 55%),radial-gradient(ellipse 60% 40% at 10% 100%,rgba(232,90,122,.08),transparent 50%),var(--void);color:var(--parchment);-webkit-font-smoothing:antialiased;line-height:1.45}button,input{font:inherit}button{cursor:pointer;border:none;background:none;color:inherit}a{color:inherit;text-decoration:none}.app-shell{min-height:100dvh;max-width:430px;margin:0 auto;padding:calc(12px + var(--safe-top)) 16px calc(88px + var(--safe-bottom));position:relative}.app-shell.focus-mode{padding-bottom:calc(24px + var(--safe-bottom))}.app-shell.focus-mode .bottom-nav{display:none}h1,h2,h3{font-family:var(--font-display);color:var(--holo);font-weight:600;margin:0 0 .4em;letter-spacing:.01em}p{margin:0 0 .75em}.mono{font-family:var(--font-mono)}.muted{color:var(--smoke)}.disclaimer-chip{display:inline-flex;align-items:center;gap:6px;font-size:11px;letter-spacing:.04em;text-transform:uppercase;color:var(--smoke);border:1px solid rgba(139,147,167,.35);border-radius:999px;padding:4px 10px}.card{background:linear-gradient(160deg,#1e2a4af2,#121a2bfa);border:1px solid rgba(232,220,200,.08);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}.card.bounty{position:relative;border-color:#c8f54240;background:linear-gradient(145deg,rgba(232,220,200,.06),transparent 40%),linear-gradient(160deg,#1e2a4afa,#0b0e14fa)}.card.bounty:before{content:"";position:absolute;top:8px;right:8px;bottom:8px;left:8px;border:1px dashed rgba(200,245,66,.18);border-radius:12px;pointer-events:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 18px;border-radius:999px;font-weight:600;transition:transform .12s ease,box-shadow .12s ease,opacity .12s ease}.btn:active{transform:scale(.98)}.btn-primary{background:var(--gold);color:var(--void);box-shadow:0 0 24px #c8f54240}.btn-secondary{border:1px solid var(--teal);color:var(--teal);background:#3ddc9714}.btn-ghost{color:var(--smoke);min-height:40px}.btn:disabled{opacity:.45;cursor:not-allowed}.top-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:18px}.brand{display:flex;flex-direction:column;gap:2px;min-width:0}.brand-title{font-family:var(--font-display);font-size:15px;color:var(--holo);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.brand-sub{font-size:10px;color:var(--smoke);letter-spacing:.08em}.top-actions{display:flex;align-items:center;gap:8px}.chip{display:inline-flex;align-items:center;gap:6px;min-height:36px;padding:0 10px;border-radius:999px;background:var(--navy);border:1px solid rgba(139,147,167,.25);font-size:12px;color:var(--parchment)}.chip.streak{color:var(--rose);border-color:#e85a7a59}.chip.pomodoro{color:var(--teal);border-color:#3ddc9759}.avatar-btn{width:40px;height:40px;border-radius:50%;background:radial-gradient(circle at 30% 30%,#3ddc97,transparent 45%),linear-gradient(145deg,#1e2a4a,#0b0e14);border:2px solid rgba(200,245,66,.45);display:grid;place-items:center;font-size:14px;font-weight:700;color:var(--holo)}.bottom-nav{position:fixed;left:50%;transform:translate(-50%);bottom:0;width:min(430px,100%);display:grid;grid-template-columns:repeat(4,1fr);gap:4px;padding:10px 12px calc(10px + var(--safe-bottom));background:#0b0e14eb;border-top:1px solid rgba(139,147,167,.2);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);z-index:40}.nav-item{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:11px;color:var(--smoke);padding:6px 4px;border-radius:12px}.nav-item.active{color:var(--gold);background:#c8f54214}.nav-icon{font-size:16px;line-height:1}.stack{display:flex;flex-direction:column;gap:16px}.row{display:flex;align-items:center;justify-content:space-between;gap:12px}.progress-ring-wrap{display:flex;align-items:center;gap:14px}.progress-ring{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--gold) calc(var(--pct) * 1%),rgba(139,147,167,.25) 0);position:relative}.progress-ring:after{content:"";position:absolute;top:5px;right:5px;bottom:5px;left:5px;border-radius:50%;background:var(--navy)}.progress-ring span{position:relative;z-index:1;font-family:var(--font-mono);font-size:12px;color:var(--holo)}.section-label{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--smoke);margin-bottom:8px}.greeting{font-family:var(--font-display);font-size:1.35rem;line-height:1.25;color:var(--holo)}.fade-up{animation:fadeUp .22s ease both}@media(prefers-reduced-motion:reduce){.fade-up{animation:none}}@keyframes fadeUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.lesson-top{display:grid;grid-template-columns:auto 1fr auto;gap:8px;align-items:center;margin-bottom:14px}.dots{display:flex;justify-content:center;gap:6px}.dot{width:8px;height:8px;border-radius:50%;background:var(--smoke);opacity:.45}.dot.done{background:var(--teal);opacity:1}.dot.current{background:var(--gold);opacity:1;box-shadow:0 0 10px #c8f5428c}.problem-card{border-left:3px solid var(--orange);margin-bottom:14px}.choice-list{display:flex;flex-direction:column;gap:10px}.choice{text-align:left;padding:14px;border-radius:var(--radius-sm);background:#0b0e148c;border:1px solid rgba(139,147,167,.25);min-height:48px}.choice.selected{border-color:var(--gold);box-shadow:0 0 0 1px #c8f54259}.choice.correct{border-color:var(--teal);background:#3ddc971a}.choice.wrong{border-color:var(--rose);background:#e85a7a14}.token-tray,.rail-slots{display:flex;flex-direction:column;gap:8px}.token,.slot{min-height:48px;border-radius:var(--radius-sm);padding:12px 14px;display:flex;align-items:center;justify-content:space-between;gap:8px}.token{background:#c8f54214;border:1px solid rgba(200,245,66,.35);cursor:grab}.token.used{opacity:.35;pointer-events:none}.slot{background:#0b0e1473;border:1px dashed rgba(139,147,167,.45)}.slot.filled{border-style:solid;border-color:#c8f54266;background:#1e2a4acc}.slot-index{font-family:var(--font-mono);color:var(--smoke);font-size:12px;margin-right:8px}.lesson-dock{position:sticky;bottom:0;display:flex;gap:10px;padding-top:14px;background:linear-gradient(to top,var(--void) 70%,transparent)}.lesson-dock .btn{flex:1}.feedback{margin-top:12px;padding:12px 14px;border-radius:var(--radius-sm);background:#121a2bf2;border:1px solid rgba(139,147,167,.3);font-size:14px}.feedback.ok{border-color:#3ddc9773}.feedback.bad{border-color:#e85a7a73}.journey{display:flex;flex-direction:column;gap:0;position:relative;padding-left:8px}.journey-node{display:grid;grid-template-columns:28px 1fr;gap:10px;padding:10px 0;position:relative}.journey-node:before{content:"";position:absolute;left:13px;top:0;bottom:0;width:2px;background:#8b93a740}.journey-node:first-child:before{top:50%}.journey-node:last-child:before{bottom:50%}.node-seal{width:28px;height:28px;border-radius:50%;border:2px solid var(--smoke);background:var(--void);z-index:1;display:grid;place-items:center;font-size:11px}.node-seal.mastered{border-color:var(--teal);background:#3ddc9733;color:var(--teal)}.node-seal.available{border-color:var(--gold);color:var(--gold)}.node-seal.locked{border-color:var(--smoke);color:var(--smoke);border-style:dashed}.skill-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.skill-pill{background:var(--navy);border-radius:var(--radius-sm);padding:10px;border:1px solid rgba(139,147,167,.2)}.skill-bar{height:6px;border-radius:999px;background:#8b93a733;overflow:hidden;margin-top:8px}.skill-bar>span{display:block;height:100%;background:linear-gradient(90deg,var(--orange),var(--gold));border-radius:inherit}.badge-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.badge{padding:12px;border-radius:var(--radius-sm);border:1px solid rgba(139,147,167,.25);background:#121a2bcc;font-size:13px}.badge.earned{border-color:#c8f54266;box-shadow:inset 0 0 20px #c8f5420f}.badge.locked{opacity:.45}.avatar-stage{border-radius:24px;padding:22px 16px;text-align:center;background:radial-gradient(circle at 50% 20%,rgba(61,220,151,.18),transparent 50%),linear-gradient(180deg,#1e2a4a,#121a2b 70%,#0b0e14);border:1px solid rgba(200,245,66,.2)}.avatar-ring{width:112px;height:112px;margin:0 auto 12px;border-radius:50%;display:grid;place-items:center;background:radial-gradient(circle at 35% 30%,rgba(244,247,251,.15),transparent 40%),linear-gradient(145deg,#3ddc97,#1e2a4a 55%,#0b0e14);border:3px solid rgba(200,245,66,.55);box-shadow:0 0 30px #3ddc9733;font-size:40px}.rank-name{font-family:var(--font-display);color:var(--gold);font-size:1.25rem}.xp-track{height:8px;border-radius:999px;background:#8b93a740;overflow:hidden;margin-top:10px}.xp-track>span{display:block;height:100%;background:var(--teal)}.settings-list{display:flex;flex-direction:column;gap:12px}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid rgba(139,147,167,.15)}.toggle{width:48px;height:28px;border-radius:999px;background:var(--indigo);border:1px solid rgba(139,147,167,.35);position:relative;flex-shrink:0}.toggle.on{background:#3ddc9740;border-color:var(--teal)}.toggle:after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:var(--smoke);transition:transform .15s ease,background .15s ease}.toggle.on:after{transform:translate(20px);background:var(--teal)}.pomodoro-presets{display:flex;gap:8px;flex-wrap:wrap}.preset{min-width:52px;min-height:40px;border-radius:999px;border:1px solid rgba(139,147,167,.3);padding:0 12px;color:var(--smoke)}.preset.active{border-color:var(--teal);color:var(--teal);background:#3ddc971a}.farewell{margin-top:18px;text-align:center;font-family:var(--font-display);font-style:italic;color:var(--parchment);opacity:.9}.legal{font-size:12px;color:var(--smoke);line-height:1.4}.error-banner{padding:12px 14px;border-radius:var(--radius-sm);border:1px solid rgba(232,90,122,.45);background:#e85a7a1a;color:var(--parchment);font-size:14px}.error-text{color:var(--rose);font-size:14px;margin:0}.field{display:flex;flex-direction:column;gap:8px}.field-label{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--smoke)}.field-input{width:100%;min-height:48px;padding:0 14px;border-radius:var(--radius-sm);border:1px solid rgba(232,220,200,.16);background:#0b0e14d9;color:var(--holo);outline:none}.field-input:focus{border-color:#c8f5428c;box-shadow:0 0 0 3px #c8f5421f}.field-input::placeholder{color:#8b93a7b3}.loading{text-align:center;padding:48px 16px;color:var(--smoke)}.panel-list{display:flex;flex-direction:column;gap:12px}.panel{padding:14px;border-radius:var(--radius-sm);background:#0b0e1473;border:1px solid rgba(139,147,167,.2)}.panel h3{font-size:1rem;color:var(--gold)}