:root{--primary-color: #667eea;--secondary-color: #764ba2;--text-color: #333;--text-color-light: #888;--background-color: #ffffff;--card-bg: rgba(255, 255, 255, .95);--card-border: rgba(255, 255, 255, .2);--button-android-start: #3DDC84;--button-android-end: #2BC470;--button-ios-start: #007AFF;--button-ios-end: #0056CC;--version-card-bg: rgba(255, 255, 255, .6);--version-card-border: rgba(255, 255, 255, .2);--skeleton-color: #e0e0e0;--skeleton-highlight: #f5f5f5}@media (prefers-color-scheme: dark){:root{--text-color: #f0f0f0;--text-color-light: #aaa;--background-color: #121212;--card-bg: rgba(30, 30, 30, .95);--card-border: rgba(255, 255, 255, .1);--button-android-start: #2BC470;--button-android-end: #25A85C;--button-ios-start: #0056CC;--button-ios-end: #004499;--version-card-bg: rgba(50, 50, 50, .6);--version-card-border: rgba(255, 255, 255, .1);--skeleton-color: #333;--skeleton-highlight: #444}}body{margin:0;font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color:var(--text-color);background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);background-attachment:fixed;display:flex;justify-content:center;align-items:center;min-height:100vh;padding:20px;box-sizing:border-box}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 20% 80%,rgba(120,119,198,.3) 0%,transparent 50%),radial-gradient(circle at 80% 20%,rgba(255,119,198,.3) 0%,transparent 50%),radial-gradient(circle at 40% 40%,rgba(120,219,255,.3) 0%,transparent 50%);animation:backgroundShift 20s ease-in-out infinite;z-index:-1}@keyframes backgroundShift{0%,to{opacity:1}50%{opacity:.8}}*{box-sizing:border-box}#root{width:100%;max-width:500px;margin:0 auto}button{border-radius:16px;border:none;padding:18px 32px;font-size:1.2em;font-weight:600;cursor:pointer;transition:all .4s cubic-bezier(.175,.885,.32,1.275);color:#fff;position:relative;overflow:hidden;min-height:60px;display:flex;align-items:center;justify-content:center}button:focus{outline:none}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);background-attachment:fixed;display:flex;justify-content:center;align-items:center;min-height:100vh;color:#333;padding:20px;box-sizing:border-box}body:before{content:"";position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:-1;background:radial-gradient(ellipse 80% 60% at 20% 80%,rgba(120,119,198,.14) 0%,transparent 100%),radial-gradient(ellipse 70% 50% at 80% 20%,rgba(255,119,198,.12) 0%,transparent 100%),radial-gradient(ellipse 60% 45% at 40% 40%,rgba(120,219,255,.1) 0%,transparent 100%);animation:bgMove 24s cubic-bezier(.77,0,.175,1) infinite alternate;pointer-events:none}@keyframes bgMove{0%{background-position:18% 77%,82% 23%,38% 41%;filter:blur(0px);opacity:1}30%{background-position:23% 83%,77% 17%,44% 45%;filter:blur(1.5px);opacity:.93}60%{background-position:15% 80%,85% 25%,41% 38%;filter:blur(.7px);opacity:1}to{background-position:20% 76%,80% 24%,39% 42%;filter:blur(0px);opacity:1}}.app-download-page{background:#fffffff2;border-radius:24px;box-shadow:0 20px 40px #0000001a;padding:40px;text-align:center;max-width:500px;width:100%;box-sizing:border-box}.app-header{margin-bottom:40px;animation:fadeInDown .8s ease-out .2s both}.app-icon{width:100px;height:100px;border-radius:20px;margin-bottom:20px;box-shadow:0 8px 16px #0000001a;transition:transform .3s ease;animation:iconBounce .6s ease-out .4s both}.app-icon:hover{transform:scale(1.05)}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes iconBounce{0%{opacity:0;transform:scale(.3)}50%{transform:scale(1.05)}to{opacity:1;transform:scale(1)}}.app-header h1{font-size:2.2em;color:#333;margin-bottom:10px}.download-section{margin-bottom:40px;animation:fadeInUp .8s ease-out .6s both}.download-buttons{display:flex;flex-direction:column;gap:16px}.download-button{display:flex;align-items:center;justify-content:center;padding:18px 24px;border:none;border-radius:16px;font-size:1.2em;font-weight:600;cursor:pointer;transition:all .4s cubic-bezier(.175,.885,.32,1.275);color:#fff;text-decoration:none;position:relative;overflow:hidden;min-height:60px;animation:fadeInUp .8s ease-out .8s both}.download-button svg{margin-right:12px;font-size:1.4em;filter:drop-shadow(0 1px 2px rgba(0,0,0,.1))}.download-button.android{background:linear-gradient(135deg,#3ddc84,#2bc470);box-shadow:0 8px 16px #3ddc844d,0 4px 8px #0000001a}.download-button.ios{background:linear-gradient(135deg,#007aff,#0056cc);box-shadow:0 8px 16px #007aff4d,0 4px 8px #0000001a}.download-button:hover{background-position:right center;transform:translateY(-4px) scale(1.02);box-shadow:0 12px 24px #3ddc8466,0 8px 16px #00000026}.download-button:active{animation:buttonTap .22s cubic-bezier(.42,1.72,.62,.94);transform:scale(.96);box-shadow:0 4px 12px #00000026}@keyframes buttonTap{0%{transform:scale(1);box-shadow:0 8px 16px #00000026}60%{transform:scale(.96);box-shadow:0 4px 12px #00000026}to{transform:scale(1);box-shadow:0 8px 16px #00000026}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.qrcode-container{margin:25px 0;padding:20px;border-radius:16px;background:#fff3;border:1.5px solid #e1e1e1;box-shadow:0 2px 8px #64649614}.version-info{margin-top:40px;animation:fadeInUp .8s ease-out 1s both;text-align:left}.version-info h2{font-size:1.4em;color:#555;margin:30px 0 15px;font-weight:600;text-align:left}.version-info ul{list-style:none;padding:0;margin:0}.version-info li{background:#fff9;border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:16px;margin-bottom:12px;text-align:left;font-size:.9em;line-height:1.5;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all .3s ease;animation:fadeInUp .7s cubic-bezier(.59,1.48,.49,.91) both}.version-info li:hover{background:#fffc;transform:translateY(-2px);box-shadow:0 4px 8px #0000001a}.app-footer{font-size:.9em;color:#888;margin-top:30px}.skeleton{background:#e0e0e0;border-radius:12px;animation:skeleton-loading 1.5s infinite}@keyframes skeleton-loading{0%{opacity:.6}50%{opacity:1}to{opacity:.6}}@media (max-width: 600px){.app-download-page{padding:25px}.app-header h1{font-size:1.8em}.app-icon{width:80px;height:80px}.download-button{padding:16px 20px;font-size:1em}}