@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--bg-color:#fff;--surface:#fff;--surface-hover:#f5f5f5;--text-primary:#1c1c1e;--text-secondary:#666;--accent:#1c1c1e;--accent-hover:#333;--danger:#ff3b30;--border-color:#00000026}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);-webkit-font-smoothing:antialiased;font-family:Inter,sans-serif;overflow-x:hidden}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-color)}::-webkit-scrollbar-thumb{background:#ccc;border-radius:4px}.app-container{flex-direction:column;max-width:600px;min-height:100vh;margin:0 auto;display:flex}.top-nav{color:#fff;background:#000;border-bottom:1px solid #ffffff1a;justify-content:space-between;align-items:center;padding:12px 16px;display:flex}.logo-text{letter-spacing:-.5px;font-size:18px;font-weight:700}.nav-actions{align-items:center;gap:16px;display:flex}.icon-btn{color:#fff;cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;display:flex;position:relative}.notification-dot{background-color:var(--danger);border-radius:50%;width:8px;height:8px;position:absolute;top:-2px;right:-2px}.sticky-top-section{z-index:10;flex-direction:column;display:flex;position:sticky;top:0}.header{-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color);background:#fffffff2;padding:12px 16px}.search-container{margin-bottom:12px;position:relative}.search-icon{color:var(--text-secondary);position:absolute;top:50%;left:12px;transform:translateY(-50%)}.search-input{background:var(--surface);border:1px solid var(--border-color);width:100%;color:var(--text-primary);border-radius:8px;outline:none;padding:10px 10px 10px 36px;font-size:15px;transition:all .2s}.search-input:focus{border-color:var(--accent)}.global-controls{gap:8px;display:flex}.btn{cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:6px;padding:10px 16px;font-size:14px;font-weight:600;transition:all .2s;display:flex}.btn-primary{background:var(--accent);color:#fff;flex:1}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{color:var(--text-primary);border:1px solid var(--border-color);background:0 0}.btn-secondary:hover{background:var(--surface-hover)}.word-list{flex-direction:column;gap:8px;padding:12px 16px 100px;display:flex}.word-card{border:1px solid var(--border-color);cursor:pointer;background:0 0;border-radius:8px;align-items:center;padding:8px;display:flex}.word-card:hover{background:var(--surface-hover)}.word-card.active{border-color:var(--accent);background:var(--surface);border-width:2px;padding:7px}.play-btn{color:#fff;cursor:pointer;background:#1c1c1e;border:none;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;margin-right:12px;display:flex}.play-btn:active{transform:scale(.95)}.word-text{text-align:left;flex:1;font-size:16px;font-weight:500}.korean-text{color:var(--text-primary)}.separator{color:var(--text-secondary);margin:0 4px}.russian-text{color:var(--text-secondary)}.lights-out{z-index:9999;background:#000;flex-direction:column;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.lights-out-text{color:#fff;text-align:center;-webkit-user-select:none;user-select:none;flex-direction:column;flex:1;justify-content:center;padding:2rem;font-size:14vw;font-weight:400;animation:.3s fadeIn;display:flex}.lights-out-stats{color:#fff6;text-align:center;white-space:nowrap;-webkit-user-select:none;user-select:none;background:#ffffff1a;border-radius:50px;min-width:34px;padding:4px 12px;font-size:14px;font-weight:600;transition:all .2s;position:absolute;top:24px;right:24px}.lights-out-prompt{color:#ffffffb3;text-align:center;flex-direction:column;flex:1;justify-content:center;font-size:28px;font-weight:300;animation:.3s fadeIn;display:flex}.turn-on-light-btn{color:#fff;cursor:pointer;background:0 0;border:1px solid #fff6;border-radius:30px;align-items:center;gap:8px;margin-bottom:32px;padding:12px 24px;font-size:16px;transition:all .2s;display:flex}.turn-on-light-btn:hover{background:#ffffff1a;border-color:#fff}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.drawer-overlay{-webkit-backdrop-filter:blur(2px);z-index:1000;opacity:0;background:#0006;animation:.3s forwards fadeOverlay;position:fixed;inset:0}.drawer{background:var(--bg-color);z-index:1001;flex-direction:column;width:300px;max-width:85%;padding:24px;transition:right .3s cubic-bezier(.16,1,.3,1);display:flex;position:fixed;top:0;bottom:0;right:-320px;box-shadow:-4px 0 24px #0000001a}.drawer.open{right:0}.drawer-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.drawer-title{font-size:18px;font-weight:700}.drawer-close{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;padding:4px;display:flex}.drawer-content{flex-direction:column;gap:12px;display:flex}.feedback-link{background:var(--surface);border:1px solid var(--border-color);color:var(--text-primary);border-radius:12px;align-items:center;gap:12px;padding:16px;font-weight:500;text-decoration:none;transition:all .2s;display:flex}.feedback-link:hover{background:var(--surface-hover);border-color:var(--accent)}.plus-drawer-btn{color:var(--text-primary);background:#f59e0b14;border:1px solid #f59e0b}.plus-drawer-btn:hover{background:#f59e0b29;border-color:#f59e0b;transform:translateY(-1px)}.notification-card{background:var(--surface);border:1px solid var(--accent);border-radius:12px;padding:16px}.notification-tag{background:var(--accent);color:#fff;border-radius:12px;margin-bottom:8px;padding:4px 8px;font-size:11px;font-weight:700;display:inline-block}.notification-title{margin-bottom:4px;font-weight:700}.notification-desc{color:var(--text-secondary);font-size:13px;line-height:1.4}@keyframes fadeOverlay{to{opacity:1}}.ios-guide-modal{background:var(--bg-color);border-radius:20px 20px 0 0;width:100%;max-width:600px;padding:24px;animation:.3s cubic-bezier(.16,1,.3,1) slideUp;position:relative;box-shadow:0 -4px 24px #00000026}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.splash-screen{z-index:9999;background-color:#000;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.splash-logo{color:#fff;letter-spacing:-1px;font-size:32px;font-weight:700}.splash-logo-container{flex-direction:column;align-items:center;gap:16px;display:flex}.splash-logo-img{object-fit:contain;width:240px;height:240px;animation:2s ease-in-out infinite pulseLogo}@keyframes pulseLogo{0%{transform:scale(1)}50%{transform:scale(1.05)}to{transform:scale(1)}}.onboarding-overlay{z-index:9999;color:#fff;background-color:#000;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.onboarding-content{text-align:center;flex-direction:column;align-items:center;width:100%;max-width:400px;display:flex}.onboarding-slide{flex-direction:column;align-items:center;gap:24px;display:flex}.onboarding-icon-container{background:#ffffff1a;border-radius:50%;justify-content:center;align-items:center;width:96px;height:96px;margin-bottom:8px;display:flex}.onboarding-slide h2{letter-spacing:-.5px;margin-bottom:8px;font-size:24px;font-weight:700}.onboarding-slide p{color:#fffc;font-size:16px;line-height:1.5}.onboarding-pagination{gap:8px;margin:48px 0 32px;display:flex}.onboarding-pagination .dot{background:#ffffff4d;border-radius:50%;width:8px;height:8px;transition:all .3s}.onboarding-pagination .dot.active{background:#fff;border-radius:4px;width:24px}.onboarding-btn-pill{color:#000;cursor:pointer;background:#fff;border:none;border-radius:100px;width:100%;padding:16px 48px;font-size:18px;font-weight:600;transition:transform .2s}.onboarding-btn-pill:active{transform:scale(.96)}.fade-in{animation:.5s forwards onboardingFadeIn}.fade-out{animation:.5s forwards onboardingFadeOut}@keyframes onboardingFadeIn{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}@keyframes onboardingFadeOut{0%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(.98)}}.footer-nav{width:100%;max-width:600px;padding:8px 16px;padding-bottom:calc(8px + env(safe-area-inset-bottom));z-index:100;background:#000;border-top:1px solid #ffffff1a;position:fixed;bottom:0;left:50%;transform:translate(-50%)}.share-footer-btn{color:#fff;cursor:pointer;background:0 0;border:1px solid #fff3;border-radius:8px;justify-content:center;align-items:center;gap:8px;width:100%;padding:8px;font-size:14px;font-weight:500;transition:all .2s;display:flex}.share-footer-btn:hover{background:#ffffff0d}.share-footer-btn:active{background:#ffffff26}.dev-buttons{gap:8px;display:flex;position:absolute;left:50%;transform:translate(-50%)}.dev-buttons button{cursor:pointer;color:#fff;background:#ffffff1a;border:1px solid #fff3;border-radius:4px;padding:2px 8px;font-size:12px}.toast-notification{color:#111827;z-index:10000;text-align:center;pointer-events:none;background:#fff;border:1px solid #e5e7eb;border-radius:24px;width:max-content;max-width:90%;padding:14px 20px;font-size:14px;font-weight:500;animation:.4s cubic-bezier(.175,.885,.32,1.275) forwards toastEnter;position:fixed;top:70px;left:50%;transform:translate(-50%);box-shadow:0 4px 16px #00000026}.toast-notification.exiting{animation:1.2s forwards toastExit}@keyframes toastEnter{0%{opacity:0;transform:translate(-50%,-100%)}to{opacity:1;transform:translate(-50%)}}@keyframes toastExit{0%{opacity:1;transform:translate(-50%)}20%{opacity:1;transform:translate(-50%,10px)}to{opacity:0;transform:translate(30vw,-50px)scale(.2)}}.menu-notification-block{color:#1e3a8a;background:#eff6ff;border-left:4px solid #3b82f6;border-radius:4px 8px 8px 4px;margin-bottom:16px;padding:12px 16px;font-size:14px;line-height:1.5;animation:.3s fadeIn}.menu-notification-block p{margin:0}.pro-carousel-overlay{-webkit-backdrop-filter:blur(8px);z-index:9999;color:#fff;background:#000000e6;flex-direction:column;animation:.3s fadeIn;display:flex;position:fixed;inset:0}.pro-carousel-close{color:#fff;cursor:pointer;z-index:10000;background:#ffffff1a;border:none;border-radius:50%;justify-content:center;align-items:center;padding:8px;transition:all .2s;display:flex;position:absolute;top:24px;right:24px}.pro-carousel-close:hover{background:#fff3}.pro-carousel-content{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;max-width:400px;margin:0 auto;padding:24px;display:flex}.pro-carousel-header{background:#f59e0b1a;border:1px solid #f59e0b4d;border-radius:20px;align-items:center;gap:8px;margin-bottom:40px;padding:6px 16px;display:flex}.pro-carousel-header span{color:#f59e0b;letter-spacing:1px;font-size:14px;font-weight:800}.pro-carousel-icon-container{background:linear-gradient(145deg,#f59e0b26,#f59e0b0d);border:1px solid #f59e0b33;border-radius:50%;justify-content:center;align-items:center;width:120px;height:120px;margin-bottom:32px;display:flex;box-shadow:0 0 40px #f59e0b26}.pro-carousel-content h2{color:#fff;letter-spacing:-.5px;margin-bottom:16px;font-size:28px;font-weight:800}.pro-carousel-content p{color:#ffffffb3;font-size:16px;line-height:1.6}.pro-carousel-footer{padding:24px;padding-bottom:calc(24px + env(safe-area-inset-bottom));background:linear-gradient(#0000,#000);flex-direction:column;align-items:center;display:flex}.pro-carousel-pagination{gap:8px;margin-bottom:32px;display:flex}.pro-dot{background:#fff3;border-radius:50%;width:8px;height:8px;transition:all .3s}.pro-dot.active{background:#f59e0b;border-radius:4px;width:24px}.btn-pro-action{color:#fff;cursor:pointer;background:linear-gradient(135deg,#f59e0b,#d97706);border:none;border-radius:100px;width:100%;max-width:400px;padding:16px;font-size:18px;font-weight:700;transition:transform .2s;box-shadow:0 8px 20px #f59e0b4d}.btn-pro-action:active{transform:scale(.96)}