:root { --bg:#070b14; --panel:#0d1423; --line:#22304a; --text:#f4f7fb; --muted:#8d9bb4; --cyan:#6ee7f9; --blue:#4f8cff; --red:#ff707a; }
* { box-sizing: border-box; }
html { color-scheme: dark; }
body { margin:0; min-width:320px; min-height:100vh; color:var(--text); font:15px/1.5 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif; background:radial-gradient(circle at 18% 12%,rgba(79,140,255,.18),transparent 28%),radial-gradient(circle at 88% 86%,rgba(152,120,255,.12),transparent 28%),var(--bg); }
body::before { content:""; position:fixed; inset:0; pointer-events:none; opacity:.15; background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px); background-size:42px 42px; mask-image:linear-gradient(to right,#000,transparent 72%); }
.login-shell { position:relative; min-height:100vh; display:grid; grid-template-columns:minmax(420px,1.1fr) minmax(430px,.9fr); }
.intro { display:flex; flex-direction:column; min-height:100vh; padding:44px clamp(38px,7vw,110px); border-right:1px solid rgba(255,255,255,.055); }
.brand,.mobile-brand { display:flex; align-items:center; gap:13px; color:var(--text); text-decoration:none; }
.brand img { width:48px; height:48px; filter:drop-shadow(0 12px 25px rgba(79,140,255,.3)); }
.brand strong,.brand small { display:block; }.brand strong { font-size:17px; }.brand small { color:var(--muted); font-size:11px; margin-top:1px; }
.intro-copy { max-width:640px; margin:auto 0; padding:70px 0; }
.eyebrow { margin:0 0 14px; color:var(--cyan); font-size:11px; font-weight:850; letter-spacing:.16em; text-transform:uppercase; }
.intro h1 { margin:0; font-size:clamp(42px,5vw,72px); line-height:1.03; letter-spacing:-.055em; }.intro h1 span { color:transparent; background:linear-gradient(100deg,var(--cyan),#88a7ff,#b18cff); background-clip:text; }
.intro-copy>p:last-child { max-width:560px; margin:26px 0 0; color:#a9b5c9; font-size:17px; }
.feature-row { display:flex; flex-wrap:wrap; gap:12px 25px; color:var(--muted); font-size:12px; }.feature-row b { color:#53d69b; margin-right:5px; }
.login-panel { display:grid; place-items:center; padding:36px; background:rgba(7,11,20,.42); backdrop-filter:blur(18px); }
form { width:min(430px,100%); padding:42px; border:1px solid rgba(126,153,200,.2); border-radius:24px; background:linear-gradient(145deg,rgba(17,26,44,.96),rgba(9,15,27,.98)); box-shadow:0 35px 90px rgba(0,0,0,.4); }
.mobile-brand { display:none; }.mobile-brand img { width:38px; }
form h2 { margin:0; font-size:32px; letter-spacing:-.04em; } .subtitle { margin:7px 0 27px; color:var(--muted); }
label { display:grid; gap:8px; margin-top:17px; color:#cbd5e5; font-size:12px; font-weight:750; }
.field { display:flex; align-items:center; min-height:50px; border:1px solid var(--line); border-radius:12px; background:#09101c; transition:.18s; }.field:focus-within { border-color:var(--blue); box-shadow:0 0 0 3px rgba(79,140,255,.12); }.field i { width:44px; color:#71809b; font-style:normal; text-align:center; }.field input { min-width:0; flex:1; border:0; outline:0; background:transparent; color:var(--text); font:inherit; }.field button { margin-right:12px; padding:5px; border:0; background:transparent; color:var(--cyan); font-size:11px; font-weight:800; cursor:pointer; }
.submit { width:100%; min-height:51px; display:flex; align-items:center; justify-content:center; gap:14px; margin-top:25px; border:0; border-radius:12px; background:linear-gradient(135deg,var(--blue),#605be6); color:white; font-family:inherit; font-size:14px; font-weight:800; box-shadow:0 14px 32px rgba(79,140,255,.23); cursor:pointer; transition:.18s; }.submit:hover { transform:translateY(-1px); filter:brightness(1.08); }.submit:disabled { opacity:.65; cursor:wait; transform:none; }
.error { display:none; margin:0 0 5px; padding:10px 12px; border:1px solid rgba(255,112,122,.24); border-radius:10px; background:rgba(255,112,122,.08); color:#ffadb3; font-size:12px; }.error.show { display:block; }
.security-note { margin-top:20px; color:#71809b; font-size:10px; text-align:center; }.security-note span { color:#53d69b; margin-right:5px; }
@media (max-width:850px) { .login-shell { display:block; }.intro { display:none; }.login-panel { min-height:100vh; padding:20px; }.mobile-brand { display:flex; margin-bottom:35px; } form { padding:32px 25px; } }