[data-theme="dark"] { --bg:#05080F; --surface:rgba(255,255,255,0.04); --surface-2:rgba(255,255,255,0.07); --border:rgba(255,255,255,0.10); --border-2:rgba(255,255,255,0.18); --text:#F0F4FF; --text-2:#8B96B0; --text-3:#586179; --accent:#3B82F6; --accent-2:#6366F1; }
[data-theme="light"] { --bg:#FBFCFF; --surface:rgba(13,21,38,0.03); --surface-2:rgba(13,21,38,0.05); --border:rgba(13,21,38,0.10); --border-2:rgba(13,21,38,0.18); --text:#0D1526; --text-2:#4B5878; --text-3:#9BA8BF; --accent:#2563EB; --accent-2:#6366F1; }
* { box-sizing:border-box; margin:0; padding:0; font-family:'DM Sans',sans-serif; }
body { background:var(--bg); color:var(--text); min-height:100vh; display:flex; align-items:center; justify-content:center; padding:20px; overflow-x:hidden; transition:background .4s,color .4s; }
h1 { font-family:'Syne',sans-serif; letter-spacing:-0.02em; }
.ambient { position:fixed; inset:0; z-index:-1; pointer-events:none; }
[data-theme="dark"] .ambient { background:radial-gradient(ellipse 50% 45% at 80% 0%,rgba(59,130,246,0.16),transparent 60%),radial-gradient(ellipse 45% 40% at 5% 95%,rgba(99,102,241,0.13),transparent 55%); }
[data-theme="light"] .ambient { background:radial-gradient(ellipse 50% 45% at 80% 0%,rgba(59,130,246,0.10),transparent 60%),radial-gradient(ellipse 45% 40% at 5% 95%,rgba(99,102,241,0.08),transparent 55%); }
.theme-toggle { position:fixed; top:20px; right:20px; width:40px; height:40px; border-radius:12px; background:var(--surface); border:1px solid var(--border); color:var(--text); cursor:pointer; font-size:15px; z-index:10; }
.back-home { position:fixed; top:20px; left:20px; color:var(--text-2); text-decoration:none; font-size:14px; display:flex; align-items:center; gap:8px; z-index:10; }
.back-home:hover { color:var(--text); }
.card { width:100%; max-width:460px; background:var(--surface); border:1px solid var(--border); border-radius:26px; padding:38px 32px; backdrop-filter:blur(20px); box-shadow:0 30px 70px rgba(0,0,0,0.3); animation:rise .5s ease; }
@keyframes rise { from{opacity:0;transform:translateY(20px);} to{opacity:1;transform:translateY(0);} }
.brand { text-align:center; margin-bottom:22px; }
.brand img { width:54px; height:54px; object-fit:contain; margin-bottom:10px; }
.brand .name { font-family:'Syne'; font-weight:800; font-size:20px; }
.steps { display:flex; gap:6px; margin-bottom:8px; }
.steps .seg { flex:1; height:5px; border-radius:3px; background:var(--surface-2); overflow:hidden; }
.steps .seg.on { background:linear-gradient(90deg,var(--accent),var(--accent-2)); }
.step-label { text-align:center; font-size:12px; color:var(--text-3); margin-bottom:22px; font-weight:600; letter-spacing:.04em; }
h1.title { font-size:22px; text-align:center; margin-bottom:4px; }
.subtitle { text-align:center; color:var(--text-2); font-size:14px; margin-bottom:24px; }
.field { margin-bottom:15px; }
.field label { display:block; font-size:13px; font-weight:600; color:var(--text-2); margin-bottom:7px; }
.input-wrap { display:flex; align-items:center; gap:10px; background:var(--surface-2); border:1px solid var(--border); border-radius:14px; padding:0 14px; transition:border-color .2s; }
.input-wrap:focus-within { border-color:var(--accent); }
.input-wrap i { color:var(--text-3); font-size:14px; }
.input-wrap input, .input-wrap select { flex:1; background:none; border:none; outline:none; color:var(--text); font-size:15px; padding:14px 0; font-family:'DM Sans'; }
.input-wrap input::placeholder { color:var(--text-3); }
.input-wrap select option { color:#000; }
.input-wrap .eye { cursor:pointer; }
.row { display:flex; justify-content:space-between; align-items:center; margin-bottom:22px; font-size:13px; }
.row .remember { display:flex; align-items:center; gap:7px; color:var(--text-2); cursor:pointer; }
.row a { color:var(--accent); text-decoration:none; font-weight:600; }
.row a:hover { text-decoration:underline; }
.btn { width:100%; padding:15px; border:none; border-radius:14px; font-family:'DM Sans'; font-size:15px; font-weight:700; cursor:pointer; display:flex; align-items:center; justify-content:center; gap:8px; transition:transform .2s,filter .2s; margin-top:6px; }
.btn-primary { background:linear-gradient(135deg,var(--accent),var(--accent-2)); color:#fff; box-shadow:0 10px 26px rgba(59,130,246,0.35); }
.btn-primary:hover { transform:translateY(-2px); filter:brightness(1.08); }
.divider { display:flex; align-items:center; gap:14px; margin:22px 0; color:var(--text-3); font-size:13px; }
.divider::before, .divider::after { content:''; flex:1; height:1px; background:var(--border); }
.btn-ghost { width:100%; padding:14px; border:1px solid var(--border-2); border-radius:14px; background:transparent; color:var(--text); font-family:'DM Sans'; font-size:14px; font-weight:600; cursor:pointer; text-decoration:none; display:flex; align-items:center; justify-content:center; gap:8px; transition:background .2s; }
.btn-ghost:hover { background:var(--surface-2); }
.error { background:rgba(239,68,68,0.1); border:1px solid rgba(239,68,68,0.3); color:#F87171; padding:12px 14px; border-radius:12px; font-size:13px; margin-bottom:18px; display:flex; align-items:center; gap:8px; }
.success { background:rgba(34,197,94,0.1); border:1px solid rgba(34,197,94,0.3); color:#4ADE80; padding:12px 14px; border-radius:12px; font-size:13px; margin-bottom:18px; display:flex; align-items:center; gap:8px; }
.foot { text-align:center; margin-top:20px; font-size:13px; color:var(--text-2); }
.foot a { color:var(--accent); text-decoration:none; font-weight:600; }
.back-link { display:block; text-align:center; margin-top:16px; color:var(--text-2); text-decoration:none; font-size:13px; }
.back-link:hover { color:var(--text); }
.file-field { background:var(--surface-2); border:1px dashed var(--border-2); border-radius:14px; padding:16px; text-align:center; cursor:pointer; transition:border-color .2s; }
.file-field:hover { border-color:var(--accent); }
.file-field i { font-size:20px; color:var(--text-3); display:block; margin-bottom:6px; }
.file-field .ft { font-size:13px; color:var(--text-2); }
.file-field .fn { font-size:12px; color:var(--accent); margin-top:6px; word-break:break-all; }