:root{color-scheme:light;font:400 16px/1.5 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",system-ui,sans-serif;color:#253149;background:#f5f7fb}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;background:radial-gradient(ellipse 45rem 28rem at 14% 2%,#dde9ff 0,transparent 76%),radial-gradient(ellipse 40rem 30rem at 98% 94%,#e2f3f2 0,transparent 75%),#f5f7fb}main{width:min(100% - 32px,455px);padding:42px 41px 27px;border:1px solid #fff;border-radius:28px;background:#fff;box-shadow:0 25px 80px #29426619,0 2px 9px #2937500a}.gate-mark{display:grid;place-items:center;width:51px;height:51px;margin-bottom:34px;border-radius:16px;background:linear-gradient(145deg,#748ff0,#3b60d0);box-shadow:0 9px 19px #436ad247;color:#fff;font-size:24px}.gate-kicker{font-size:11px;letter-spacing:.14em;font-weight:750;color:#6e87c5}h1{font-size:clamp(28px,5vw,35px);line-height:1.12;letter-spacing:-.05em;font-weight:750;margin:10px 0 13px}#manual-intro{color:#7a889e;line-height:1.55;margin:0 0 29px}button,input{font:inherit}button{cursor:pointer}#bg-button,form button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:11px 18px;border:0;border-radius:13px;background:#4267d6;color:#fff;font-weight:670;box-shadow:0 9px 22px #4267d641;transition:background .18s,transform .18s,box-shadow .18s}#bg-button{width:100%}#bg-button:hover,form button:hover{background:#3154c1;box-shadow:0 10px 26px #4267d65c}#bg-button:active,form button:active{transform:scale(.975)}#bg-message{min-height:1.5em;margin:13px 0;color:#b95360;font-size:13px}#bg-message:empty{min-height:0;margin:0}.gate-foot{text-align:center;border-top:1px solid #eef1f5;padding-top:19px;color:#a3aebc;font-size:11px;letter-spacing:.025em}.spinner{display:none;width:38px;height:38px;margin:25px auto;border:3px solid #e8edf8;border-top-color:#5e7cda;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.bg-auto #bg-button,.bg-auto #manual-intro{display:none}.bg-auto .spinner{display:block}.bg-auto main{min-height:330px}dialog{width:min(100% - 30px,420px);padding:31px;border:1px solid #fff;border-radius:23px;background:#fff;color:#26334b;box-shadow:0 32px 95px #15264346}dialog::backdrop{background:#24365575;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}.gate-dialog-icon{display:grid;place-items:center;width:40px;height:40px;border-radius:13px;background:#eaf0ff;color:#4a6ac9;font-weight:800}dialog h2{font-size:24px;letter-spacing:-.04em;margin:15px 0 4px}.dialog-intro{font-size:14px;color:#8492a7;margin:0 0 20px}form{margin-top:17px}form label{display:block;margin-bottom:9px;color:#4b5b74;font-size:14px}input[type=number]{width:96px;height:48px;padding:8px 12px;border:1px solid #dce4f0;background:#f8faff;color:#26334b;border-radius:11px;margin-right:8px}button:focus-visible,input:focus-visible{outline:3px solid #89a8f4;outline-offset:3px}.slider{position:relative;height:58px;margin:22px 0;border-radius:40px;background:#edf2fa;touch-action:none;user-select:none;box-shadow:inset 0 1px 3px #6076a41a}.slider-label{position:absolute;inset:0;display:grid;place-items:center;color:#7d8ca2;font-size:13px;font-weight:600;pointer-events:none}.slider-handle{position:absolute;top:5px;left:5px;z-index:1;width:48px;height:48px;padding:0;border:0;border-radius:50%;background:linear-gradient(145deg,#7290ed,#3d63d0);color:#fff;box-shadow:0 4px 14px #3f62c951;touch-action:none;cursor:grab}.slider-handle:active{cursor:grabbing}.slider.done{background:#e3f6eb}#slider-message{min-height:1.4em;color:#b95360;font-size:13px}#bg-custom-frame{position:fixed;inset:0;width:100%;height:100%;border:0;background:#fff}#bg-custom-status:not(:empty){position:fixed;left:50%;bottom:20px;z-index:10;transform:translateX(-50%);max-width:calc(100vw - 28px);padding:12px 18px;border:1px solid #fff;border-radius:15px;background:#f8faffed;color:#2f456f;box-shadow:0 10px 32px #18294f38;backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px)}body.custom{display:block;background:#fff}body.custom main{display:none}body.custom dialog{position:fixed;z-index:20}@media(max-width:520px){main{padding:35px 27px 23px;border-radius:23px}.gate-mark{margin-bottom:26px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}.spinner{animation:spin 1.2s steps(8) infinite}}@media(prefers-reduced-transparency:reduce){dialog::backdrop{backdrop-filter:none;-webkit-backdrop-filter:none}#bg-custom-status:not(:empty){background:#fff;backdrop-filter:none;-webkit-backdrop-filter:none}}@media(prefers-contrast:more){main,dialog{border-color:#5a6982}.gate-kicker,#manual-intro,.dialog-intro{color:#42516b}}