:root {
    --bg: #F6F8FC;
    --card: #FFFFFF;
    --card-border: #DDE7F0;
    --text: #0F172A;
    --muted: #64748B;
    --primary: #2563EB;
    --secondary: #14B8A6;
    --danger: #EF4444;
    --success: #16A34A;
    --shadow: 0 24px 70px rgba(15, 23, 42, 0.13);
    --radius: 26px;
}
* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans";
    color: var(--text);
    background:
        radial-gradient(circle at 16% 12%, rgba(37,99,235,.16), transparent 32%),
        radial-gradient(circle at 88% 84%, rgba(20,184,166,.15), transparent 34%),
        linear-gradient(135deg, #F8FAFC 0%, #EEF5FF 56%, #F7FEFF 100%);
}
.auth {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 32px 16px;
    position: relative;
    overflow: hidden;
}
.auth::before {
    content: "";
    position: absolute;
    width: 520px;
    height: 520px;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(37,99,235,.15), transparent 64%);
    left: -180px;
    top: -180px;
    pointer-events: none;
}
.auth::after {
    content: "";
    position: absolute;
    width: 420px;
    height: 420px;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(20,184,166,.16), transparent 66%);
    right: -140px;
    bottom: -150px;
    pointer-events: none;
}
.fx, .bg-glow { display: none !important; }
.auth-shell {
    width: min(940px, 100%);
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 18px;
    align-items: stretch;
    position: relative;
    z-index: 2;
}
.auth-hero {
    border: 1px solid rgba(221,231,240,.9);
    border-radius: var(--radius);
    padding: 30px;
    background: linear-gradient(135deg, rgba(255,255,255,.86), rgba(255,255,255,.62));
    box-shadow: 0 18px 50px rgba(15,23,42,.08);
    backdrop-filter: blur(14px);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 420px;
}
.auth-hero__badge {
    width: fit-content;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(37,99,235,.10);
    border: 1px solid rgba(37,99,235,.18);
    color: var(--primary);
    font-weight: 900;
    font-size: 13px;
}
.auth-hero h2 {
    margin: 22px 0 10px;
    font-size: clamp(32px, 5vw, 52px);
    line-height: .98;
    letter-spacing: -.04em;
}
.auth-hero p {
    margin: 0;
    color: var(--muted);
    font-size: 16px;
    line-height: 1.55;
    max-width: 48ch;
}
.auth-benefits {
    display: grid;
    gap: 10px;
    margin-top: 28px;
}
.auth-benefit {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #334155;
    font-weight: 750;
}
.auth-benefit span {
    width: 30px;
    height: 30px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px solid var(--card-border);
}
.card {
    width: 100%;
    background: rgba(255,255,255,.94);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    position: relative;
    z-index: 2;
}
.card__header { margin-bottom: 16px; }
.brand { display:flex; align-items:center; gap:10px; margin-bottom:14px; justify-content:center; }
.brand__dot { width:40px; height:40px; border-radius:15px; background:linear-gradient(135deg, var(--primary), var(--secondary)); box-shadow:0 12px 26px rgba(37,99,235,.25); position:relative; }
.brand__dot::after { content:"L"; position:absolute; inset:0; display:grid; place-items:center; color:white; font-weight:950; }
.brand__text { font-weight:950; letter-spacing:.2px; font-size:25px; color:var(--text); }
.title { margin:0; font-size:30px; text-align:center; letter-spacing:-.02em; }
.subtitle { margin:8px 0 0; color:var(--muted); font-size:14px; text-align:center; }
.form { margin-top: 18px; }
.field { margin-bottom:13px; }
.label { display:block; font-size:12px; color:var(--muted); font-weight:900; letter-spacing:.05em; text-transform:uppercase; margin-bottom:7px; }
.input { width:100%; padding:13px 14px; border-radius:15px; border:1px solid var(--card-border); background:#fff; color:var(--text); outline:none; transition:border-color .15s ease, box-shadow .15s ease, transform .15s ease; }
.input::placeholder { color:#94A3B8; }
.input:focus { border-color:rgba(37,99,235,.58); box-shadow:0 0 0 4px rgba(37,99,235,.13); transform:translateY(-1px); }
.grid { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.btn { width:100%; padding:13px 14px; border-radius:15px; border:0; cursor:pointer; font-weight:950; transition:transform .08s ease, filter .15s ease, box-shadow .15s ease; }
.btn:active { transform:translateY(1px); }
.btn--primary { background:linear-gradient(135deg, var(--primary), var(--secondary)); color:#fff; box-shadow:0 16px 32px rgba(37,99,235,.22); }
.btn--primary:hover { filter:brightness(1.03); box-shadow:0 18px 38px rgba(37,99,235,.28); }
.footer { margin-top:16px; display:flex; justify-content:center; gap:8px; font-size:14px; }
.muted { color:var(--muted); }
.link { color:var(--primary); text-decoration:none; font-weight:900; }
.link:hover { text-decoration:underline; }
.validation { display:none; margin-top:7px; color:var(--danger); font-size:12.5px; }
.field--invalid .validation { display:block; }
.field--invalid .input { border-color:rgba(239,68,68,.55); box-shadow:0 0 0 4px rgba(239,68,68,.12); }
.alert { margin: 10px 0 12px; padding: 12px 13px; border-radius: 15px; border: 1px solid rgba(239,68,68,.22); background: rgba(239,68,68,.07); color: #B91C1C; font-size: 13px; }
.alert ul { margin: 6px 0 0; padding-left: 18px; }
input[type="checkbox"] { accent-color: var(--primary); }
.remember-row { display:flex; gap:10px; align-items:center; color: var(--muted); font-size: 13px; font-weight:700; }
.lang-switch { position: fixed; top: 18px; right: 18px; z-index: 5; display:flex; gap:6px; padding:5px; background:rgba(255,255,255,.86); border:1px solid var(--card-border); border-radius:999px; box-shadow:0 12px 32px rgba(15,23,42,.10); backdrop-filter:blur(12px); }
.lang-switch button { border:0; border-radius:999px; padding:8px 11px; background:transparent; color:var(--muted); cursor:pointer; font-weight:900; }
.lang-switch button.active { background:linear-gradient(135deg,var(--primary),var(--secondary)); color:#fff; }
@media(max-width:820px){ .auth-shell{grid-template-columns:1fr}.auth-hero{display:none}.card{max-width:460px;margin:auto} }
@media(max-width:520px){ .grid{grid-template-columns:1fr}.card{padding:22px}.title{font-size:25px}.lang-switch{position:absolute;top:10px;right:10px} }