@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap";:root{--blue:#06f;--blue-dark:#0047cc;--blue-light:#eff6ff;--blue-mid:#dbeafe;--text:#0f172a;--muted:#64748b;--border:#e2e8f0;--white:#fff}*,:before,:after{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html{background:var(--blue);height:100%;font-family:Inter,sans-serif;overflow-x:hidden}body{background:var(--blue);width:100%;min-height:100%;overflow-x:hidden}#root{flex-direction:column;min-height:100vh;display:flex}.app{background:var(--blue);flex-direction:column;min-height:100vh;display:flex}.navbar{flex-shrink:0;justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.brand{color:var(--white);letter-spacing:.5px;align-items:center;gap:10px;font-size:22px;font-weight:900;display:flex}.back-btn{color:var(--white);cursor:pointer;background:#fff3;border:none;border-radius:12px;justify-content:center;align-items:center;width:40px;height:40px;transition:background .2s;display:flex}.back-btn:hover{background:#ffffff4d}.hero{flex-shrink:0;padding:8px 24px 36px}.hero-title{color:var(--white);letter-spacing:-1.5px;font-size:44px;font-weight:900;line-height:1.1}.hero-sub{color:#ffffffbf;margin-top:6px;font-size:18px}.sheet{background:var(--white);border-radius:36px 36px 0 0;flex:1;padding:32px 20px 40px;overflow:hidden auto}.sheet-inner{width:100%;max-width:960px;margin:0 auto}.upload-zone{border:2.5px dashed var(--blue);background:var(--white);text-align:center;cursor:pointer;border-radius:28px;flex-direction:column;align-items:center;width:100%;margin-bottom:32px;padding:48px 20px 40px;transition:background .25s,transform .2s;display:flex}.upload-zone:hover,.upload-zone.drag-active{background:var(--blue-light);transform:translateY(-2px)}.upload-icon{background:var(--blue-light);width:88px;height:88px;color:var(--blue);border-radius:22px;justify-content:center;align-items:center;margin-bottom:20px;transition:transform .2s;display:flex}.upload-zone:hover .upload-icon{transform:scale(1.06)}.upload-title{color:var(--text);margin-bottom:8px;font-size:24px;font-weight:800}.upload-hint{color:var(--muted);margin-bottom:24px;font-size:15px}.upload-btn{background:var(--blue);color:var(--white);pointer-events:none;border:none;border-radius:18px;padding:14px 36px;font-size:17px;font-weight:700}.contact-row{border-top:1.5px dashed var(--border);flex-wrap:wrap;justify-content:center;align-items:center;gap:16px 28px;margin-top:8px;padding-top:24px;display:flex}.contact-item{color:var(--text);align-items:center;gap:8px;font-size:14px;font-weight:600;display:flex}.contact-item svg{color:var(--blue);flex-shrink:0}.settings-grid{flex-direction:column;gap:20px;display:flex}.file-card{background:var(--blue-light);border:1.5px dashed var(--blue);border-radius:22px;align-items:center;gap:14px;padding:18px;display:flex;overflow:hidden}.file-icon{background:var(--white);width:52px;min-width:52px;height:52px;color:var(--blue);border-radius:14px;justify-content:center;align-items:center;display:flex}.file-info{flex:1;min-width:0}.file-name{color:var(--text);white-space:nowrap;text-overflow:ellipsis;font-size:15px;font-weight:700;overflow:hidden}.file-meta{color:var(--muted);margin-top:3px;font-size:13px}.options-row{grid-template-columns:1fr 1fr;gap:14px;display:grid}.opt-box{background:var(--white);border:1px solid var(--border);border-radius:18px;padding:16px}.opt-box.full{grid-column:1/-1}.opt-label{color:var(--muted);text-transform:uppercase;letter-spacing:.6px;margin-bottom:12px;font-size:11px;font-weight:700}.seg{background:var(--border);border-radius:14px;gap:4px;padding:4px;display:flex}.seg-item{text-align:center;color:var(--muted);cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:10px;flex:1;padding:10px 4px;font-size:14px;font-weight:600;transition:all .18s}.seg-item.on{background:var(--white);color:var(--text);box-shadow:0 3px 10px #00000017}.seg-item.on.color{background:var(--blue);color:var(--white)}.copies-row{justify-content:space-between;align-items:center;gap:12px;display:flex}.copies-label{color:var(--muted);text-transform:uppercase;letter-spacing:.6px;font-size:11px;font-weight:700}.stepper{background:var(--border);border-radius:14px;align-items:center;gap:4px;padding:4px;display:flex}.stepper-btn{background:var(--white);width:40px;height:40px;color:var(--text);cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;transition:transform .12s;display:flex;box-shadow:0 2px 6px #0000000f}.stepper-btn:active{transform:scale(.94)}.stepper-val{text-align:center;width:44px;color:var(--text);font-size:20px;font-weight:800}.pay-card{background:var(--text);color:var(--white);border-radius:24px;padding:28px}.pay-title{margin-bottom:20px;font-size:20px;font-weight:800}.pay-row{color:#ffffffa6;justify-content:space-between;margin-bottom:12px;font-size:14px;display:flex}.pay-row span:last-child{color:var(--white);font-weight:600}.pay-divider{background:#ffffff1f;height:1px;margin:16px 0}.pay-total{justify-content:space-between;margin-bottom:24px;font-size:24px;font-weight:900;display:flex}.pay-btn{background:var(--blue);width:100%;height:58px;color:var(--white);cursor:pointer;border:none;border-radius:16px;justify-content:center;align-items:center;gap:8px;font-size:18px;font-weight:700;transition:opacity .2s,transform .1s;display:flex;box-shadow:0 8px 24px #06f6}.pay-btn:active{transform:scale(.98)}.pay-btn:disabled{opacity:.55;cursor:not-allowed;transform:none}.success-wrap{text-align:center;flex-direction:column;align-items:center;gap:20px;padding:8px 0;display:flex}.success-icon{background:var(--blue-light);border-radius:28px;justify-content:center;align-items:center;width:96px;height:96px;display:flex}.success-title{color:var(--text);letter-spacing:-1px;font-size:32px;font-weight:900}.success-desc{color:var(--muted);max-width:400px;font-size:16px;line-height:1.5}.code-box{background:var(--white);border:3px dashed var(--blue);letter-spacing:12px;color:var(--blue);border-radius:28px;width:100%;max-width:500px;padding:32px 20px;font-size:60px;font-weight:900}.expiry{color:var(--muted);background:var(--blue-light);border-radius:20px;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:600;display:flex}.action-row{gap:12px;width:100%;max-width:500px;display:flex}.act-btn{border:1.5px solid var(--border);background:var(--white);height:56px;color:var(--text);cursor:pointer;border-radius:16px;flex:1;justify-content:center;align-items:center;gap:8px;font-size:16px;font-weight:700;transition:all .18s;display:flex}.act-btn:hover{background:var(--blue-light);border-color:var(--blue)}.act-btn.primary{background:var(--blue);color:var(--white);border:none;box-shadow:0 8px 20px #0066ff4d}.spin{border:3px solid #ffffff59;border-top-color:var(--white);border-radius:50%;width:20px;height:20px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.slide{animation:.4s cubic-bezier(.16,1,.3,1) both slideUp}@keyframes slideUp{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@media (width>=700px){.navbar{padding:28px 5%}.hero{padding:12px 5% 44px}.hero-title{font-size:62px}.hero-sub{font-size:22px}.sheet{border-radius:48px 48px 0 0;padding:48px 5% 60px}.upload-zone{margin-bottom:40px;padding:72px 40px 60px}.upload-title{font-size:28px}.settings-grid{flex-direction:row;align-items:flex-start;gap:32px}.settings-left{flex:1.4}.settings-right{flex:1}.options-row{gap:18px}.opt-box{padding:20px}.pay-card{padding:36px}.pay-title{font-size:22px}.pay-total{font-size:28px}.code-box{letter-spacing:16px;padding:40px;font-size:72px}.success-title{font-size:40px}.success-desc{font-size:18px}}@media (width>=1100px){.sheet-inner{max-width:1100px}}