:root{--bg:#060812;--panel:#0c1628;--line:#294061;--text:#f4f8ff;--muted:#8da0bf;--cyan:#1be4ef;--blue:#3386ff;--violet:#7657ff;--green:#61eca9;--red:#ff8097}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;overflow-x:hidden;overflow-y:auto;background:var(--bg)}
body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text)}
.v4-auth-shell{min-height:100dvh;display:grid;grid-template-columns:minmax(460px,1.08fr) minmax(420px,.92fr);background:radial-gradient(circle at 15% 28%,rgba(20,144,255,.18),transparent 32%),radial-gradient(circle at 92% 8%,rgba(103,75,255,.16),transparent 30%),#060812}
.v4-auth-visual{min-height:100dvh;position:relative;overflow:hidden;padding:47px 55px;border-right:1px solid rgba(70,105,160,.25);background:linear-gradient(145deg,rgba(4,9,24,.82),rgba(2,7,18,.97))}
.v4-auth-brand,.v4-mobile-brand{display:flex;align-items:center;gap:14px}.v4-auth-brand img,.v4-mobile-brand img{width:62px;height:62px}.v4-auth-brand strong,.v4-mobile-brand strong{display:block;font-size:21px;letter-spacing:3.6px}.v4-auth-brand small,.v4-mobile-brand small{display:block;margin-top:7px;color:var(--cyan);font-size:8px;letter-spacing:2.7px}
.v4-orbit-stage{position:absolute;width:min(47vw,520px);aspect-ratio:1;left:50%;top:43%;transform:translate(-50%,-50%);display:grid;place-items:center}.v4-orbit-stage img{width:46%;z-index:4;filter:drop-shadow(0 0 38px rgba(32,124,255,.5));animation:v4float 5s ease-in-out infinite}
.v4-orbit{position:absolute;border-radius:50%;border:1px solid rgba(35,152,255,.30);animation:v4rotate 16s linear infinite}.v4-orbit:after{content:"";position:absolute;width:9px;height:9px;right:10%;top:13%;border-radius:50%;background:var(--cyan);box-shadow:0 0 18px var(--cyan)}.v4-orbit.one{inset:5%}.v4-orbit.two{inset:20%;animation-duration:12s;animation-direction:reverse;border-color:rgba(116,79,255,.32)}.v4-orbit.three{inset:33%;animation-duration:9s}
.node{position:absolute;border-radius:50%;background:#178bff;box-shadow:0 0 18px #178bff;animation:v4pulse 2.4s ease-in-out infinite}.n1{width:7px;height:7px;left:13%;top:36%}.n2{width:5px;height:5px;right:18%;bottom:27%;animation-delay:.7s}.n3{width:8px;height:8px;right:27%;top:19%;animation-delay:1.2s}
.v4-auth-copy{position:absolute;left:55px;right:55px;bottom:59px}.v4-auth-copy>span{color:var(--cyan);font-size:10px;font-weight:900;letter-spacing:2.5px}.v4-auth-copy h1{margin:12px 0 12px;font-size:clamp(39px,5vw,67px);line-height:1.03;letter-spacing:-3px}.v4-auth-copy em{color:var(--cyan);font-style:normal}.v4-auth-copy p{max-width:520px;color:var(--muted);line-height:1.7}
.v4-auth-main{min-height:100dvh;padding:calc(30px + env(safe-area-inset-top)) clamp(22px,5vw,70px) calc(28px + env(safe-area-inset-bottom));display:flex;flex-direction:column;justify-content:center}.v4-mobile-brand{display:none}.v4-auth-content{width:100%;max-width:540px;margin:auto}
.v4-auth-card{width:100%;padding:34px;border:1px solid rgba(58,91,144,.55);border-radius:27px;background:linear-gradient(145deg,rgba(14,24,44,.98),rgba(7,13,25,.98));box-shadow:0 30px 90px rgba(0,0,0,.42)}.v4-auth-card h2{margin:12px 0 8px;font-size:clamp(36px,5vw,52px);line-height:1.06;letter-spacing:-2.2px}.v4-auth-card>p{color:var(--muted);line-height:1.65}.v4-auth-kicker{color:var(--green);font-size:10px;font-weight:900;letter-spacing:2.4px}
.v4-auth-form{display:grid;gap:17px}.v4-auth-form label{display:grid;gap:8px;color:#dce7f7;font-size:14px;font-weight:800}.v4-auth-form input{width:100%;min-height:54px;padding:14px 15px;border:1px solid #293b5e;border-radius:14px;outline:none;color:#fff;background:#060b15;font:inherit}.v4-auth-form input:focus{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(24,226,238,.09)}
.v4-auth-submit{width:100%;min-height:54px;border:0;border-radius:14px;color:#03121b;background:linear-gradient(90deg,var(--cyan),var(--blue),var(--violet));font:inherit;font-weight:900;cursor:pointer}.v4-auth-switch{text-align:center!important}.v4-auth-switch a{color:var(--cyan);text-decoration:none;font-weight:800}
.v4-form-pair{display:grid;grid-template-columns:1fr 1fr;gap:13px}.v4-auth-form em{font-weight:500;color:var(--muted)}.v4-auth-footer{text-align:center;color:#61738f;font-size:11px;margin-top:24px}
.alert{margin-bottom:17px;padding:14px 16px;border:1px solid rgba(255,128,151,.28);border-radius:14px;color:#ff9caf;background:rgba(255,96,127,.11)}
.v4-password-wrap{position:relative}.v4-password-wrap input{padding-right:88px}.v4-password-toggle{position:absolute;right:8px;top:50%;transform:translateY(-50%);min-height:38px!important;padding:0 10px!important;border:0;border-radius:10px;background:transparent!important;color:var(--cyan)!important;font-weight:800;cursor:pointer}
@keyframes v4rotate{to{transform:rotate(360deg)}}@keyframes v4float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}@keyframes v4pulse{0%,100%{transform:scale(.75);opacity:.45}50%{transform:scale(1.35);opacity:1}}
@media(max-width:850px){.v4-auth-shell{display:block}.v4-auth-visual{display:none}.v4-auth-main{min-height:100dvh;justify-content:flex-start;padding:calc(18px + env(safe-area-inset-top)) 14px calc(25px + env(safe-area-inset-bottom))}.v4-mobile-brand{display:flex;width:100%;max-width:540px;margin:4px auto 24px}.v4-auth-content{margin:0 auto}.v4-auth-card{padding:27px 20px;border-radius:24px}.v4-auth-footer{margin-top:auto;padding-top:24px}.v4-form-pair{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}