:root[data-theme="dark"]{
--bg:#0a0e1a;--bg2:#0f1526;--surface:#151e35;--surface2:#1c2640;
--border:rgba(255,255,255,0.07);--border-focus:rgba(149,117,205,.55);
--text:#e8e4f0;--muted:#7a7f96;--accent:#9575cd;--accent2:#b39ddb;
--accentbg:rgba(149,117,205,0.1);--input-bg:rgba(255,255,255,.04);
--glow:rgba(149,117,205,.18);--error:#e05c5c;
--panel-overlay:linear-gradient(to top,rgba(10,14,26,.96) 0%,rgba(10,14,26,.3) 55%,transparent 100%);
}
:root[data-theme="light"]{
--bg:#f7f5ff;--bg2:#eeeaf7;--surface:#ffffff;--surface2:#f0ecfb;
--border:rgba(0,0,0,0.09);--border-focus:rgba(108,63,196,.55);
--text:#1a1528;--muted:#6b6480;--accent:#6c3fc4;--accent2:#8860d0;
--accentbg:rgba(108,63,196,.08);--input-bg:rgba(0,0,0,.025);
--glow:rgba(108,63,196,.14);--error:#c0392b;
--panel-overlay:linear-gradient(to top,rgba(26,21,40,.9) 0%,rgba(26,21,40,.2) 55%,transparent 100%);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{
font-family:'Outfit',sans-serif;
background:var(--bg);color:var(--text);
min-height:100vh;display:grid;grid-template-columns:1fr 1fr;
transition:background .5s,color .5s;overflow:hidden;
}
/* LEFT */
.left{position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:flex-end;padding:3rem}
.left-bg{
position:absolute;inset:0;
background-image:url('https://images.unsplash.com/photo-1484480974693-6ca0a78fb36b?w=900&q=80');
background-size:cover;background-position:center;
transition:transform .8s cubic-bezier(.25,.46,.45,.94);
}
.left:hover .left-bg{transform:scale(1.05)}
.left-ov{position:absolute;inset:0;background:var(--panel-overlay)}
.left-logo{
position:absolute;top:2.5rem;left:2.5rem;z-index:2;
font-family:'Playfair Display',serif;font-size:1.6rem;font-weight:700;
color:#e8e4f0;text-decoration:none;
}
.left-logo span{color:var(--accent);font-style:italic}
.left-content{position:relative;z-index:2}
.left-quote{font-family:'Playfair Display',serif;font-size:1.8rem;font-weight:400;font-style:italic;color:#e8e4f0;line-height:1.45;margin-bottom:.8rem}
.left-attr{font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;color:rgba(232,228,240,.45)}
.left-tags{display:flex;gap:.5rem;margin-top:1.5rem;flex-wrap:wrap}
.tag{font-size:.72rem;padding:.25rem .7rem;border-radius:20px;background:rgba(149,117,205,.2);color:var(--accent2);border:1px solid rgba(149,117,205,.25);font-weight:500}
/* RIGHT */
.right{
display:flex;flex-direction:column;align-items:center;justify-content:center;
padding:2.5rem 4rem;position:relative;overflow-y:auto;
animation:slideIn .6s ease both;
}
@keyframes slideIn{from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:translateX(0)}}
.theme-btn-corner{
position:absolute;top:2rem;right:2rem;
width:40px;height:22px;background:var(--surface2);border:1px solid var(--border);
border-radius:11px;cursor:pointer;transition:background .4s;
}
.theme-btn-corner::after{
content:'';position:absolute;top:2px;left:2px;width:16px;height:16px;
border-radius:50%;background:var(--accent);transition:transform .4s cubic-bezier(.34,1.56,.64,1);
}
[data-theme="light"] .theme-btn-corner::after{transform:translateX(18px)}
.form-wrap{width:100%;max-width:390px}
.form-eye{font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);margin-bottom:.5rem;font-weight:600}
.form-h{font-family:'Playfair Display',serif;font-size:2.6rem;font-weight:700;line-height:1.1;margin-bottom:.5rem}
.form-h em{font-style:italic;color:var(--accent)}
.form-sub{font-size:.85rem;color:var(--muted);margin-bottom:2.2rem}
.form-sub a{color:var(--accent);text-decoration:none;font-weight:500}
.form-sub a:hover{text-decoration:underline}
/* FIELDS */
.field{margin-bottom:1.2rem}
.field label{display:block;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:.45rem;font-weight:600;transition:color .3s}
.inp-wrap{position:relative}
.inp-wrap:focus-within label{color:var(--accent)}
input[type=email],input[type=password],input[type=text]{
width:100%;padding:.8rem 1rem .8rem 2.6rem;
background:var(--input-bg);border:1px solid var(--border);border-radius:8px;
color:var(--text);font-family:'Outfit',sans-serif;font-size:.9rem;outline:none;
transition:border-color .3s,box-shadow .3s,background .3s;
}
input:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--glow)}
input::placeholder{color:var(--muted)}
.ico{position:absolute;left:.85rem;top:50%;transform:translateY(-50%);font-size:.88rem;color:var(--muted);pointer-events:none;transition:color .3s}
.inp-wrap:focus-within .ico{color:var(--accent)}
.pw-toggle{position:absolute;right:.85rem;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;color:var(--muted);font-size:.78rem;font-family:'Outfit',sans-serif;font-weight:500;transition:color .3s}
.pw-toggle:hover{color:var(--accent)}
.err{color:var(--error);font-size:.75rem;margin-top:.3rem;display:none}
.err.show{display:block}
.row{display:flex;align-items:center;justify-content:space-between;margin:.2rem 0 1.6rem;font-size:.82rem}
.rem{display:flex;align-items:center;gap:.45rem;cursor:pointer;color:var(--muted)}
.rem input[type=checkbox]{accent-color:var(--accent);width:14px;height:14px}
.forgot{color:var(--accent);text-decoration:none;font-weight:500}
.forgot:hover{text-decoration:underline}
.btn-submit{
width:100%;padding:.92rem;background:var(--accent);color:#fff;
font-family:'Outfit',sans-serif;font-size:.88rem;font-weight:600;letter-spacing:.05em;
border:none;border-radius:8px;cursor:pointer;
transition:background .3s,transform .2s,box-shadow .3s;
box-shadow:0 4px 20px var(--glow);position:relative;overflow:hidden;
}
.btn-submit::before{
content:'';position:absolute;top:50%;left:50%;
width:0;height:0;background:rgba(255,255,255,.15);border-radius:50%;
transform:translate(-50%,-50%);transition:width .5s,height .5s;
}
.btn-submit:hover::before{width:400px;height:400px}
.btn-submit:hover{background:var(--accent2);transform:translateY(-1px);box-shadow:0 6px 28px var(--glow)}
.btn-submit:active{transform:translateY(0)}
.divider{display:flex;align-items:center;gap:.8rem;margin:1.6rem 0;color:var(--muted);font-size:.75rem;letter-spacing:.1em}
.divider::before,.divider::after{content:'';flex:1;height:1px;background:var(--border)}
.socials{display:grid;grid-template-columns:1fr 1fr;gap:.7rem}
.soc-btn{
display:flex;align-items:center;justify-content:center;gap:.55rem;
padding:.72rem;background:var(--input-bg);border:1px solid var(--border);
border-radius:8px;cursor:pointer;color:var(--text);
font-family:'Outfit',sans-serif;font-size:.82rem;font-weight:500;
transition:border-color .3s,background .3s,transform .2s;
}
.soc-btn:hover{border-color:var(--accent);background:var(--accentbg);transform:translateY(-1px)}
.soc-icon{width:18px;height:18px}
@media(max-width:768px){
body{grid-template-columns:1fr}
.left{display:none}
.right{padding:2rem 1.5rem}
}