@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
    --bg:#f5f5f7;--surface:#fff;--border:#e2e2e7;--text:#1a1a2e;--muted:#8a8a9a;
    --accent:#4f6ef7;--accent-h:#3a58e0;--green:#22c55e;--red:#ef4444;
    --font:'Plus Jakarta Sans',sans-serif;--mono:'JetBrains Mono',monospace;
}
html,body{min-height:100vh;background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased}

.auth-scene{display:grid;grid-template-columns:1fr 1fr;min-height:100vh}

.auth-left{
    background:#0f1117;color:#fff;
    padding:3rem;
    display:flex;flex-direction:column;
    position:relative;overflow:hidden;
}
.auth-left::before{
    content:'';position:absolute;inset:0;
    background:radial-gradient(ellipse 80% 60% at 10% 80%, rgba(79,110,247,.25), transparent),
               radial-gradient(ellipse 60% 50% at 90% 10%, rgba(79,110,247,.15), transparent);
    pointer-events:none;
}
.brand{display:flex;align-items:center;gap:.6rem;margin-bottom:auto;position:relative;z-index:1}
.brand-icon{width:36px;height:36px;background:var(--accent);border-radius:9px;display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff}
.brand span:last-child{font-weight:800;font-size:1rem;letter-spacing:.04em}

.hero-text{position:relative;z-index:1;margin:auto 0}
.hero-text h2{font-size:2.4rem;font-weight:800;line-height:1.1;margin-bottom:1rem}
.hero-text p{color:rgba(255,255,255,.6);font-size:.9rem;line-height:1.7;max-width:340px}

.features{position:relative;z-index:1;margin-top:2rem;display:flex;flex-direction:column;gap:.6rem}
.feat{display:flex;align-items:center;gap:.6rem;font-size:.85rem;color:rgba(255,255,255,.7)}
.feat-dot{width:7px;height:7px;background:var(--accent);border-radius:50%;flex-shrink:0}

.auth-right{display:flex;align-items:center;justify-content:center;padding:2rem}
.auth-card{width:100%;max-width:420px;background:var(--surface);border-radius:16px;padding:2.25rem;box-shadow:0 4px 24px rgba(0,0,0,.08),0 1px 4px rgba(0,0,0,.06)}

.tabs{display:flex;background:var(--bg);border-radius:9px;padding:.25rem;margin-bottom:1.5rem}
.tab{flex:1;text-align:center;padding:.55rem;border-radius:7px;text-decoration:none;font-weight:600;font-size:.82rem;color:var(--muted);transition:all .2s}
.tab.active{background:#fff;color:var(--text);box-shadow:0 1px 4px rgba(0,0,0,.1)}

.alert{padding:.7rem .9rem;border-radius:8px;margin-bottom:1rem;font-size:.82rem;font-weight:500;border:1px solid}
.alert-error  {background:#fef2f2;border-color:#fecaca;color:#dc2626}
.alert-success{background:#f0fdf4;border-color:#bbf7d0;color:#16a34a}
.alert-info   {background:#eff6ff;border-color:#bfdbfe;color:#1d4ed8}

.form{display:flex;flex-direction:column;gap:1rem}
.field{display:flex;flex-direction:column;gap:.35rem}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}
.field label{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.field label small{text-transform:none;letter-spacing:0;font-weight:400}
.field .field-hint{font-size:.72rem;color:var(--muted);margin-top:.15rem}
.required-star{color:var(--red);margin-left:.15rem}
.field input,.field select,.select-input{padding:.65rem .9rem;border:1px solid var(--border);border-radius:8px;font-family:var(--font);font-size:.9rem;background:#fff;color:var(--text);transition:border-color .15s;width:100%}
.field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(79,110,247,.1)}
.pw-wrap{position:relative}
.pw-wrap input{padding-right:2.75rem;width:100%}
.pw-eye{position:absolute;right:.7rem;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;font-size:.9rem;opacity:.5;transition:opacity .15s;padding:.2rem}
.pw-eye:hover{opacity:1}
.strength-bar{height:3px;background:var(--border);border-radius:99px;margin-top:.4rem;overflow:hidden}
.strength-bar div{height:100%;width:0;border-radius:99px;transition:width .3s,background .3s}
.match-msg{font-size:.72rem;margin-top:.2rem;min-height:1em}
.match-msg.ok{color:var(--green)}.match-msg.err{color:var(--red)}

.btn-submit{padding:.75rem;background:var(--accent);color:#fff;border:none;border-radius:8px;font-family:var(--font);font-weight:700;font-size:.9rem;cursor:pointer;transition:background .15s;margin-top:.25rem}
.btn-submit:hover{background:var(--accent-h)}

@media(max-width:768px){
    .auth-scene{grid-template-columns:1fr}
    .auth-left{display:none}
    .auth-right{padding:1.5rem;align-items:flex-start;padding-top:2.5rem}
}