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var(--border);border-radius:var(--radius);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:36px 28px;gap:10px;overflow:hidden}.card-back-face{transform:rotateY(180deg)}.btn-delete-card{position:absolute;top:14px;right:16px;background:none;border:1px solid rgba(245,101,101,.2);border-radius:8px;padding:4px 9px;color:#f5656580;font-size:13px;font-family:inherit;cursor:pointer;line-height:1.4;transition:color .15s,border-color .15s,background .15s;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.btn-delete-card:hover{color:var(--red);border-color:var(--red-border);background:var(--red-bg)}.delete-confirm-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;background:#0009;display:flex;align-items:flex-end;justify-content:center}.delete-confirm{width:100%;max-width:480px;max-height:calc(100% - 8px - env(safe-area-inset-top));overflow-y:auto;overscroll-behavior-y:contain;touch-action:pan-y;-webkit-overflow-scrolling:touch;background:var(--surface);border-radius:20px 20px 0 0;padding:20px 16px calc(24px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:8px}.delete-confirm-title{font-size:15px;font-weight:600;color:var(--text-muted);text-align:center;margin-bottom:4px}.delete-confirm-btn{width:100%;padding:14px;border:none;border-radius:12px;font-size:16px;font-weight:500;font-family:inherit;cursor:pointer;background:var(--surface-2);color:var(--text);touch-action:manipulation;-webkit-tap-highlight-color:transparent;transition:opacity .15s}.delete-confirm-btn:active{opacity:.7}.delete-confirm-btn-danger{color:var(--red)}.delete-confirm-btn-cancel{color:var(--text-muted);margin-top:4px}.lang-tag{font-size:10px;font-weight:700;letter-spacing:.12em;color:var(--text-muted);text-transform:uppercase;padding:3px 8px;border-radius:6px;background:#ffffff0a;border:1px solid var(--border);position:absolute;top:16px;left:18px}.card-word{font-size:clamp(26px,7.5vw,40px);font-weight:200;letter-spacing:-.02em;color:var(--text);text-align:center;line-height:1.2}.card-hint{font-size:12px;color:var(--text-muted);position:absolute;bottom:16px}.card-pronounce{display:flex;align-items:center;gap:8px;margin-top:10px}.btn-pronounce{width:34px;height:34px;border-radius:50%;background:#ffffff0f;border:1px solid var(--border);color:var(--text-dim);font-size:15px;cursor:pointer;display:flex;align-items:center;justify-content:center;touch-action:manipulation;-webkit-tap-highlight-color:transparent;transition:background .15s,transform .12s}.btn-pronounce:hover{background:#ffffff1f;color:var(--text)}.btn-pronounce:active{transform:scale(.92)}.card-transcription{font-size:14px;color:var(--text-muted);font-family:SF Mono,ui-monospace,monospace}.card-front-face.has-image .card-transcription{color:#ffffff8c}.card-front-face.has-image 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.15s;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.btn:active{transform:scale(.96)}.btn-incorrect{background:var(--red-bg);border-color:var(--red-border);color:var(--red)}.btn-correct{background:var(--green-bg);border-color:var(--green-border);color:var(--green)}.card-topics{position:absolute;bottom:14px;left:14px;right:14px;display:flex;flex-wrap:wrap;gap:5px;justify-content:center}.card-examples-panel{width:100%;max-width:420px;display:flex;flex-direction:column;align-items:center;gap:8px;margin-top:4px}.card-examples-btn{padding:5px 14px;border-radius:20px;background:#ffffff0f;border:1px solid var(--border);color:var(--text-dim);font-size:12px;font-family:inherit;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;transition:background .15s}.card-examples-btn.open{background:#ffffff1f;border-color:var(--border-2);color:var(--text)}.card-examples-list{display:flex;flex-direction:column;gap:8px;width:100%}.card-example-item{padding:10px 12px;background:var(--surface);border-radius:12px;border:1px solid var(--border)}.card-example-context-label{display:inline-flex;align-items:center;margin-bottom:7px;padding:3px 8px;border-radius:20px;background:#52caff1a;border:1px solid rgba(82,202,255,.25);color:#8bd8ff;font-size:10px;font-weight:600;letter-spacing:.02em}.card-example-en{font-size:13px;color:var(--text);line-height:1.5;margin-bottom:4px}.card-example-ru{font-size:12px;color:var(--text-muted);line-height:1.5}.card-topic-chip{padding:3px 9px;border-radius:20px;background:#ffffff0f;border:1px solid var(--border);color:var(--text-dim);font-size:11px;font-family:inherit;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;transition:background 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16px;border-radius:12px;font-size:14px;font-weight:500;text-align:center}.type-it-result.correct{background:#34c7591f;border:1px solid rgba(52,199,89,.3);color:#34c759}.type-it-result.incorrect{background:#ff453a1a;border:1px solid rgba(255,69,58,.25);color:#ff453a}.btn-next{padding:14px;background:var(--surface-2);border:1px solid var(--border-2);border-radius:14px;color:var(--text);font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;transition:background .15s;width:100%}.btn-next:hover{background:#ffffff1f}.mode-toggle{display:flex;background:#00000040;border-radius:10px;border:1px solid var(--border);overflow:hidden;flex-shrink:0}.mode-btn{padding:5px 10px;background:none;border:none;color:var(--text-muted);font-size:12px;font-weight:500;font-family:inherit;cursor:pointer;transition:all 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.15s}.landing-waitlist-input:focus{border-color:#ffffff59}.landing-waitlist-input::placeholder{color:var(--text-muted)}.landing-waitlist-submit{padding:14px 22px;background:#fff;color:#000;border:none;border-radius:var(--radius);font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;transition:opacity .15s,transform .12s;white-space:nowrap}.landing-waitlist-submit:hover{opacity:.9}.landing-waitlist-submit:active{transform:scale(.97)}.landing-waitlist-submit:disabled{opacity:.5;cursor:default}.landing-waitlist-success{padding:14px 20px;background:var(--green-bg);border:1px solid var(--green-border);border-radius:var(--radius);color:var(--green);font-size:14px;font-weight:500}.landing-waitlist-error{margin-top:10px;font-size:13px;color:var(--red)}.landing-footer{padding:24px;text-align:center;color:var(--text-muted);font-size:13px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:8px;align-items:center}.landing-footer-contacts{display:flex;gap:20px;flex-wrap:wrap;justify-content:center}.landing-footer-contacts a{color:var(--text-muted);text-decoration:none;transition:color .15s}.landing-footer-contacts a:hover{color:var(--text)}@media (max-width:480px){.landing-nav{padding:calc(14px + env(safe-area-inset-top)) calc(16px + env(safe-area-inset-right)) 14px calc(16px + env(safe-area-inset-left))}.landing-hero{padding:40px 20px;min-height:calc(85vh - 56px)}.landing-features{padding:0 16px 60px}.landing-waitlist{padding:48px 16px 60px}.landing-waitlist-form{flex-direction:column}.landing-waitlist-submit{width:100%}}