:root{--primary:#b720eb;--primary-dark:#9f19cc;--blue:#0059ff;--dark:#050505;--ink:#111827;--muted:#6b7280;--line:#e5e7eb;--bg:#f6f7fb;--white:#fff}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,Helvetica,sans-serif;background:linear-gradient(135deg,#050505 0%,#111827 58%,#b720eb 145%);min-height:100vh;color:var(--ink)}.auth-container{min-height:100vh;display:grid;grid-template-columns:1fr 480px}.auth-brand{padding:60px;display:flex;flex-direction:column;justify-content:center;color:#fff;position:relative;overflow:hidden}.auth-brand:after{content:"";position:absolute;right:-130px;top:-120px;width:360px;height:360px;background:var(--primary);border-radius:50%;opacity:.25;filter:blur(16px)}.brand-pill{display:inline-flex;align-items:center;gap:10px;width:max-content;padding:10px 15px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);font-weight:900;margin-bottom:22px}.auth-brand h1{font-size:58px;line-height:1.05;letter-spacing:-2px;max-width:700px;margin-bottom:18px}.auth-brand h1 span{color:#e7b1ff}.auth-brand p{font-size:17px;line-height:1.75;color:#e5e7eb;max-width:620px}.auth-panel{background:#fff;display:flex;align-items:center;justify-content:center;padding:34px}.auth-box{width:100%;max-width:390px}.auth-logo{display:flex;align-items:center;gap:12px;margin-bottom:26px}.auth-mark{width:50px;height:50px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--blue));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900}.auth-logo strong{display:block;font-size:20px}.auth-logo small{display:block;color:var(--muted);margin-top:3px}.auth-box h2{font-size:32px;font-weight:900;letter-spacing:-1px;margin-bottom:8px}.auth-box p{color:var(--muted);line-height:1.6;margin-bottom:24px}.auth-box input{width:100%;height:52px;border:1px solid #d1d5db;border-radius:15px;padding:0 15px;margin-bottom:13px;font-size:15px;outline:none}.auth-box input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(183,32,235,.1)}.auth-box button{width:100%;height:54px;border:0;background:var(--primary);color:#fff;border-radius:16px;font-weight:900;font-size:15px;cursor:pointer;box-shadow:0 12px 28px rgba(183,32,235,.25)}.auth-box button:hover{background:var(--primary-dark)}.auth-box a{display:block;text-align:center;margin-top:20px;color:var(--primary);font-weight:900;text-decoration:none}.error{background:#fee2e2;color:#991b1b;padding:13px 14px;border-radius:14px;margin-bottom:14px;font-weight:800}.success{background:#dcfce7;color:#166534;padding:13px 14px;border-radius:14px;margin-bottom:14px;font-weight:800}@media(max-width:900px){.auth-container{grid-template-columns:1fr}.auth-brand{display:none}.auth-panel{min-height:100vh}}@media(max-width:480px){.auth-panel{padding:22px}.auth-box h2{font-size:28px}}