:root{
  --bg:#f6f7fb; --card:#fff; --ink:#1f2937; --muted:#6b7280; --line:#e5e7eb;
  --brand:#16a34a; --brand2:#22c55e; --radius:16px;
  --shadow:0 12px 30px rgba(0,0,0,.12);
}
*{box-sizing:border-box} html,body{height:100%}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Arial;color:var(--ink);background:var(--bg);margin:0}
main{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px 16px}

.auth-shell{width:100%;max-width:1000px}
.auth-card{
  display:grid;grid-template-columns:1.05fr 1fr;gap:0;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden
}

/* aside */
.auth-aside{position:relative;color:#fff;background:
  radial-gradient(120% 120% at 10% 0%, rgba(255,255,255,.12), transparent 40%),
  linear-gradient(180deg, #0f2e17 0%, #1a7a3c 100%)}
.auth-aside-inner{display:flex;flex-direction:column;height:100%;padding:32px 28px}
.logo-circle{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;font-weight:800;letter-spacing:.5px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.25)}
.auth-aside h2{margin:16px 0 8px 0;font-size:24px}
.auth-aside .muted{color:rgba(255,255,255,.9)}
.benefits{margin:16px 0 0 0;padding:0;list-style:none;display:grid;gap:10px}
.benefits li{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);padding:10px 12px;border-radius:10px}
.b-ico{display:grid;place-items:center;width:20px;height:20px}
.b-ico svg{width:18px;height:18px;color:#fff}
.aside-foot{margin-top:auto;opacity:.85}

/* main (form) */
.auth-main{padding:36px 28px;display:flex;flex-direction:column;justify-content:center}
.auth-main h1{margin:0 0 6px 0}
.auth-main .muted{color:var(--muted);margin-bottom:14px}
.foot-note.center{text-align:center;color:var(--muted);margin-top:14px}

.flash{margin:8px 0}
.flash-item{padding:10px 12px;border-radius:10px;margin:8px 0;border:1px solid var(--line)}
.flash-item.success{background:#ecfdf5;border-color:#bbf7d0;color:#065f46}
.flash-item.error{background:#fef2f2;border-color:#fecaca;color:#7f1d1d}

.form-stylish label{display:block;margin-top:14px;font-size:14px;color:#555}
.input-wrap{position:relative;margin-top:6px}
.input-wrap input,.input-wrap select{
  width:100%;padding:12px 44px 12px 40px;border:1px solid #e5e7eb;border-radius:12px;background:#fff;outline:none;transition:border .15s, box-shadow .15s;font-size:15px}
.input-wrap select{appearance:none;background-image:linear-gradient(45deg, transparent 50%, #888 50%),linear-gradient(135deg, #888 50%, transparent 50%),linear-gradient(to right, #ccc, #ccc);
  background-position: calc(100% - 18px) calc(50% + 2px), calc(100% - 12px) calc(50% + 2px), calc(100% - 36px) 50%;
  background-size:6px 6px,6px 6px,1px 22px;background-repeat:no-repeat}
.input-wrap input:focus,.input-wrap select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(34,197,94,.18)}
.input-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);pointer-events:none;opacity:.7}
.reveal{position:absolute;right:10px;top:50%;transform:translateY(-50%);border:0;background:transparent;cursor:pointer;opacity:.7}
.reveal:hover{opacity:1}
.btn{border:1px solid #e5e7eb;background:#fff;border-radius:10px;padding:10px 14px;cursor:pointer;display:inline-block}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn.big{width:100%;padding:12px 16px;font-weight:700;box-shadow:0 6px 24px rgba(16,163,66,.18)}

/* responsive */
@media (max-width: 900px){.auth-card{grid-template-columns:1fr}.auth-aside{display:none}}