:root{--bg:#101014;--panel:#1b1b23;--line:#30303c;--text:#f5f2f7;--muted:#aaa6b4;--pink:#f17eaa;--pink2:#d95b8b;--green:#8ee0b0}*{box-sizing:border-box}html{height:100%;}body{margin:0;min-height:100vh;min-height:100dvh;background:radial-gradient(ellipse at top,#27202e 0,#101014 55%);font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:var(--text)}button,input{font:inherit}button{cursor:pointer}.shell{width:100%;max-width:560px;min-height:100vh;min-height:100dvh;margin:0 auto;padding:0 12px;display:flex;flex-direction:column;justify-content:center}.hidden{display:none!important}.calculator{width:100%;max-width:560px;min-height:min(100dvh,820px);margin:0 auto;padding:clamp(14px,3.2vh,28px) clamp(14px,4vw,24px);display:flex;flex-direction:column;justify-content:space-between;border-radius:28px;background:#19191e;border:1px solid #33333c;box-shadow:0 24px 80px #0007}.calc-brand{font-size:12px;letter-spacing:3px;color:#898592;text-align:center}.calc-display{height:clamp(90px,16vh,150px);display:flex;align-items:end;justify-content:end;padding:12px 8px;font-size:48px;overflow:hidden;white-space:nowrap;color:#fff}.keys{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(7px,2.1vw,14px)}.key{height:clamp(54px,9.5vh,82px);border:0;border-radius:50%;background:#303039;color:white;font-size:22px}.key:active{filter:brightness(1.25)}.key.muted{background:#aaa8b1;color:#16151a}.key.op,.key.equals{background:var(--pink2)}.key.zero{grid-column:span 2;border-radius:40px;text-align:left;padding-left:26px}.hint{display:none!important}.app{animation:appear .25s ease}@keyframes appear{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 2px 22px}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--pink);font-weight:700}.topbar h1{font-size:30px;margin:3px 0}.topbar h1 span{color:var(--pink)}.panel{background:#1b1b23eF;border:1px solid var(--line);border-radius:20px;padding:19px;margin-bottom:14px;box-shadow:0 12px 35px #0002}.panel h2{font-size:18px;margin:0 0 10px}.muted-text{color:var(--muted);font-size:13px;line-height:1.55}.panel label{display:block;margin:14px 0;font-size:12px;color:#d8d4de}.panel input{display:block;width:100%;margin-top:7px;padding:13px 12px;border-radius:11px;border:1px solid #3a3945;background:#121218;color:#fff;outline:none}.panel input:focus{border-color:var(--pink)}.button-row{display:flex;gap:10px;margin-top:16px}.primary,.outline{border-radius:11px;padding:12px 15px;border:1px solid transparent;font-weight:650}.primary{background:var(--pink2);color:white}.outline{background:transparent;border-color:#4b4655;color:#f4eaf0}.small{font-size:12px;padding:8px 11px}.full{width:100%}.notice{padding:12px 14px;border-radius:12px;background:#252533;border:1px solid #494455;color:#fff;font-size:13px;margin-bottom:14px}.notice.error{border-color:#a84c63;color:#ffc1ce}.notice.success{border-color:#42795c;color:#baf3cf}.welcome-panel{display:flex;align-items:center;justify-content:space-between;gap:10px}.welcome-panel h2{margin-top:6px}.pill{font-size:10px;font-weight:800;letter-spacing:1px;padding:7px 10px;border-radius:30px;background:#34313d;color:#d5d0df}.pill.premium{background:#214432;color:#a8f1c1}.price{font-size:32px;font-weight:800;margin:6px 0}.price small{font-size:13px;font-weight:500;color:var(--muted)}.payment-box{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#131319;border:1px solid #33313c;padding:12px;border-radius:12px;margin:12px 0}.payment-box strong{display:block;font-size:12px;margin-bottom:5px}.payment-box code{color:#ffd1e2;font-size:13px;word-break:break-all}.qr-box{align-items:flex-start}.qr-image{width:125px;height:125px;object-fit:contain;background:white;border-radius:8px}.chat-messages{display:flex;flex-direction:column;gap:9px;max-height:320px;overflow:auto;padding:5px 0 14px}.chat-bubble{max-width:90%;align-self:flex-start;background:#2b2935;border-radius:14px 14px 14px 4px;padding:10px 12px;font-size:13px;white-space:pre-wrap;overflow-wrap:anywhere}.chat-bubble.mine{align-self:flex-end;background:#70364f;border-radius:14px 14px 4px 14px}.chat-meta{font-size:10px;color:#c2b7c6;margin-top:5px}.chat-form{display:flex;gap:8px}.chat-form input{margin:0;min-width:0}.chat-form button{flex-shrink:0}.admin-list{margin-top:12px}.admin-item{border:1px solid #3b3945;border-radius:12px;padding:12px;margin-top:10px;font-size:12px;overflow-wrap:anywhere}.admin-item p{color:var(--muted);margin:5px 0}.admin-actions{display:flex;gap:8px;margin-top:10px}.footer{text-align:center;color:#777381;font-size:11px;line-height:1.5;padding:10px 20px}.muted{opacity:.8}@media(max-width:400px){.shell{padding:12px}.calculator{margin-top:3vh;padding:14px}.key{height:58px}.panel{padding:15px}.button-row>*{flex:1}}
.media-tools{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.media-label{display:inline-flex;align-items:center;justify-content:center;cursor:pointer}video,audio{background:#111}.admin-chat{border-top:1px solid var(--line);padding-top:10px;max-height:450px}.admin-chat .chat-bubble{max-width:100%}.admin-item h4{margin:8px 0}.button-row button:disabled,.media-tools button:disabled{opacity:.45;cursor:not-allowed}

/* Full-screen calculator adjustments for mobile devices */
@media(max-height:700px){.calculator{min-height:100dvh;border-radius:0;padding:10px 14px}.calc-display{height:clamp(65px,12vh,100px)}.key{height:clamp(46px,8.2vh,60px)}.keys{gap:7px}.shell{padding:0}.footer{display:none}}