:root{
  --bg:#fbf9f2;
  --nav-start:#2c3e50;
  --nav-end:#34495e;
  --accent:#1abc9c;
  --muted:#6b7280;
  --card:#ffffff;
  --radius:10px;
  --max-width:980px;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: "Segoe UI", Roboto, system-ui, -apple-system, "Helvetica Neue", Arial;
  background:var(--bg);
  color:#072029;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.45;
  text-align:center;
}

.nav-wrap{
  background: linear-gradient(90deg,var(--nav-start),var(--nav-end));
  box-shadow: 0 6px 20px rgba(15,23,36,0.12);
  border-bottom: 1px solid rgba(26,188,156,0.06);
  position:sticky;
  top:0;
  z-index:30;
}
.nav{
  max-width:var(--max-width);
  margin:0 auto;
  display:flex;
  align-items:center;
  padding:12px 20px;
  gap:12px;
  justify-content:center;
  position:relative;
}
.nav-center{ display:flex; gap:10px; align-items:center; }
.nav a{
  color:#ecf6f8;
  text-decoration:none;
  padding:8px 14px;
  border-radius:8px;
  font-weight:600;
  font-size:15px;
  transition:all .18s ease;
}
.nav a:hover{ color: var(--accent); transform:translateY(-2px) }
.nav a.active{ background: rgba(255,255,255,0.06); box-shadow: inset 0 -2px 0 rgba(255,255,255,0.02) }

.nav-login{ position:absolute; right:20px; }
.nav-login a{
  background:var(--accent);
  color:#fff;
  padding:8px 12px;
  border-radius:8px;
  font-size:14px;
  box-shadow: 0 6px 18px rgba(26,188,156,0.14);
}

.page{ max-width:var(--max-width); margin:36px auto 60px; padding:0 20px; }

.title{ margin:0 0 6px; font-size:28px; color:#1a3b3b; }
.subtitle{ margin:0 0 20px; color:var(--muted); font-size:15px; }

.card{ background:var(--card); border-radius:var(--radius); box-shadow: 0 10px 30px rgba(2,6,23,0.04); padding:20px; }
.form-card{ max-width:520px; margin:0 auto; text-align:left; }
.form-card label{ display:block; margin-top:12px; margin-bottom:6px; font-weight:600; color:#0f2b2b; }
.form-card input[type="text"],
.form-card input[type="email"],
.form-card input[type="password"]{
  width:100%;
  padding:10px 12px;
  border:1px solid #d6d9dd;
  border-radius:8px;
  font-size:14px;
  background: #fbfbfc;
}

.err{
  max-width:520px;
  margin:14px auto 0;
  color:#b00020;
  font-weight:700;
  background: rgba(176,0,32,0.04);
  padding:10px 12px;
  border-radius:8px;
  display:block;
}

.actions{
  display:flex;
  gap:12px;
  align-items:center;
  margin-top:18px;
  flex-wrap:wrap;
}
.btn-primary{
  display:inline-block;
  background: linear-gradient(180deg,var(--accent), #16a085);
  color:#fff;
  padding:10px 16px;
  border-radius:8px;
  text-decoration:none;
  font-weight:700;
  border:none;
  cursor:pointer;
}
.btn-ghost{
  display:inline-block;
  padding:10px 14px;
  border-radius:8px;
  color:var(--accent);
  background:transparent;
  text-decoration:none;
  border:1px solid rgba(26,188,156,0.12);
}

.small-note{ margin-top:12px; color:var(--muted); font-size:13px; }

footer.site-footer{
  background:#0b1316;
  color:#e6f6f5;
  padding:28px 16px;
  margin-top:40px;
}
.footer-inner{
  max-width:var(--max-width);
  margin:0 auto;
  display:grid;
  grid-template-columns: 1fr 220px 220px;
  gap:18px;
  align-items:start;
}
.footer-logo{ font-weight:800; font-size:18px; margin-bottom:8px }
.footer-p{ color: #b9dcd0; margin:0 0 12px; font-size:14px }
.footer-links a{ display:block; color:#cfeee3; text-decoration:none; margin:6px 0; font-size:14px }

@media (max-width:900px){
  .footer-inner{ grid-template-columns: 1fr 1fr; }
  .nav-login{ right:12px }
}
@media (max-width:640px){
  .nav{ justify-content:flex-start; padding-left:16px; padding-right:16px }
  .nav-login{ position:static; margin-left:auto }
  .form-card{ padding:18px }
  .title{ font-size:22px }
}