:root{--bg:#0b0f14;--card:#121820;--accent:#2563eb;--accent-secondary:#38bdf8;--success:#22c55e;--error:#ef4444;--text:#fff;--text-secondary:#94a3b8}*{box-sizing:border-box}html,body{height:100%;margin:0;overflow:hidden}#root{height:100%}body{background:var(--bg);color:#fff;font-family:Inter,-apple-system,BlinkMacSystemFont,SF Pro Display,sans-serif}.app{flex-direction:column;max-width:480px;height:100dvh;margin:0 auto;display:flex;position:relative;overflow:hidden}.app-content{-webkit-overflow-scrolling:touch;flex:1;padding:25px;overflow-y:auto}.header{flex-shrink:0;justify-content:space-between;align-items:center;margin-bottom:10px;padding:25px 25px 0;display:flex;position:relative}.logo{color:#fff;font-size:clamp(22px,6vw,30px);font-weight:700}.menu-button{border:2px solid var(--accent);color:#fff;cursor:pointer;background:0 0;border-radius:50%;width:48px;height:48px;font-size:28px}.dropdown{background:var(--card);opacity:0;pointer-events:none;z-index:10;border-radius:20px;width:min(300px,80vw);transition:all .2s;position:absolute;top:60px;right:0;overflow:hidden;transform:translateY(-10px);box-shadow:0 15px 40px #00000080}.dropdown.open{opacity:1;pointer-events:auto;transform:translateY(0)}.dropdown div{cursor:pointer;border-bottom:1px solid #ffffff14;justify-content:space-between;align-items:center;padding:20px 24px;font-size:20px;display:flex}.dropdown div:last-child{border-bottom:none}.balance{text-align:center;margin-top:30px}.balance p{color:var(--text-secondary);margin:0;font-size:20px}.balance h1{margin:15px 0;font-size:clamp(40px,14vw,64px)}.balance span{color:var(--text-secondary);font-size:18px}.actions{grid-template-columns:1fr 1fr;gap:15px;margin-top:40px;display:grid}.action-card{background:var(--card);color:#fff;cursor:pointer;border:none;border-radius:20px;height:150px}.action-card div{background:var(--accent);border-radius:50%;justify-content:center;align-items:center;width:60px;height:60px;margin:auto;font-size:40px;display:flex}.action-card span{color:var(--accent);margin-top:15px;font-size:20px;display:block}.devices{background:var(--card);border-radius:20px;margin-top:25px;padding:25px}.devices-header{justify-content:space-between;align-items:center;display:flex}.devices h2{margin:0}.devices p{color:var(--text-secondary)}.devices button{background:var(--card);color:#fff;border:none;border-radius:15px;padding:15px 25px;font-size:18px}.modal-bg{z-index:20;background:#0009;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--card);text-align:center;border-radius:25px;width:90%;max-width:400px;padding:25px}.modal h2{margin-bottom:25px}.modal button{background:var(--card);color:#fff;border:none;border-radius:15px;width:100%;margin-top:12px;padding:18px;font-size:20px}.modal button:hover{background:var(--accent)}.modal .close{color:var(--text-secondary);background:0 0}.device-card{background:var(--card);cursor:pointer;border:1px solid #ffffff0f;border-radius:18px;align-items:center;gap:16px;margin-top:14px;padding:16px;transition:all .2s;display:flex}.device-card:active{transform:scale(.98)}.device-icon{background:var(--card);border-radius:16px;flex-shrink:0;justify-content:center;align-items:center;width:52px;height:52px;font-size:26px;display:flex}.device-info{flex-direction:column;display:flex}.device-info h3{color:#fff;margin:0;font-size:18px;font-weight:600}.device-info span{color:var(--text-secondary);margin-top:4px;font-size:13px}.modal-overlay{z-index:99999;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#000000bf;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.confirm-box{background:var(--card);box-sizing:border-box;text-align:center;color:#fff;border-radius:24px;width:calc(100% - 40px);max-width:360px;padding:24px;animation:.2s confirmShow}.confirm-box h2{margin-bottom:12px}.confirm-box p{color:var(--text-secondary);margin-bottom:24px}.confirm-actions button{border:none;border-radius:14px;flex:1;padding:14px}.delete-confirm{background:var(--error);color:#fff}.delete-modal{background:var(--card);text-align:center;color:#fff;border-radius:24px;width:85%;max-width:360px;padding:24px}.history-screen,.device-screen{background:var(--bg);max-width:480px;height:100dvh;color:var(--text);flex-direction:column;margin:0 auto;display:flex;overflow:hidden}.sticky-header,.device-header{background:var(--bg);border-bottom:1px solid #94a3b826;flex-shrink:0;justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.back-button,.device-header button{color:var(--accent-secondary);cursor:pointer;background:0 0;border:none;padding:0;font-size:16px}.sticky-header-balance{flex-direction:column;align-items:flex-end;line-height:1.3;display:flex}.sticky-header-balance span{color:var(--text-secondary);font-size:12px}.sticky-header-balance b{font-size:18px}.history-content,.device-content{-webkit-overflow-scrolling:touch;flex:1;padding:20px;overflow-y:auto}.history-content h1{text-align:center;margin:10px 0 25px;font-size:26px}.history-empty{text-align:center;color:var(--text-secondary)}.history-group{margin-bottom:20px}.history-group-title{color:var(--text-secondary);letter-spacing:.5px;margin-bottom:10px;padding-left:4px;font-size:12px}.history-item{background:var(--card);border-radius:16px;align-items:center;gap:14px;margin-bottom:10px;padding:14px 16px;display:flex}.history-icon{background:#94a3b81f;border-radius:12px;justify-content:center;align-items:center;width:40px;min-width:40px;height:40px;font-size:18px;display:flex}.history-item-text{flex-direction:column;display:flex}.history-item-text span{color:var(--text-secondary);margin-top:2px;font-size:13px}.device-content h1{margin-bottom:8px;font-size:26px}.device-content>span{color:var(--text-secondary)}.delete-button{background:var(--error);color:#fff;cursor:pointer;border:none;border-radius:14px;width:100%;margin-top:30px;padding:14px;font-size:15px;font-weight:600;display:block}.delete-overlay{z-index:20;background:#0009;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.delete-modal{background:var(--card);text-align:center;border-radius:20px;width:85%;max-width:320px;padding:24px}.delete-modal p{color:var(--text-secondary);margin:10px 0 20px}.confirm-actions{gap:12px;display:flex}.confirm-actions button{cursor:pointer;color:var(--text);background:#94a3b826;border:none;border-radius:12px;flex:1;padding:12px;font-size:15px}.delete-confirm{color:#fff;background:var(--error)!important}.bottom-menu{background:var(--card);padding:12px 0 calc(12px + env(safe-area-inset-bottom));border-top:1px solid #94a3b826;flex-shrink:0;justify-content:space-around;align-items:center;display:flex}.bottom-menu a{color:var(--text-secondary);flex-direction:column;align-items:center;gap:4px;font-size:12px;text-decoration:none;display:flex}