*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8f5ef;
  background-image: radial-gradient(ellipse at 15% 10%, rgba(180,140,80,0.05) 0%, transparent 55%),
                    radial-gradient(ellipse at 85% 90%, rgba(140,100,40,0.04) 0%, transparent 55%);
  font-family: Charter, 'Bitstream Charter', 'Sitka Text', Cambria, serif;
  color: #2c2218;
}
form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 300px;
  padding: 32px;
  border: 1px solid rgba(100,70,20,0.12);
  border-radius: 6px;
  background: #ffffff;
  box-shadow: 0 2px 12px rgba(100,70,20,0.06);
}
h1 { font-size: 22px; font-weight: 600; letter-spacing: 0.02em; text-align: center; color: #6b5218; }
p.subtitle { font-size: 13px; text-align: center; color: #8a6d2e; opacity: 0.7; margin-top: -4px; }
input {
  padding: 10px 12px;
  background: #f8f5ef;
  border: 1px solid rgba(100,70,20,0.18);
  border-radius: 4px;
  color: #2c2218;
  font-family: Charter, 'Bitstream Charter', 'Sitka Text', Cambria, serif;
  font-size: 15px;
  outline: none;
}
input::placeholder { color: #8a6d2e; opacity: 0.5; }
input:focus { border-color: rgba(100,70,20,0.4); box-shadow: 0 0 0 2px rgba(100,70,20,0.06); }
button {
  padding: 10px;
  background: rgba(100,70,20,0.08);
  border: 1px solid rgba(100,70,20,0.18);
  border-radius: 4px;
  color: #6b5218;
  font-family: Charter, 'Bitstream Charter', 'Sitka Text', Cambria, serif;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 0.02em;
}
button:hover { background: rgba(100,70,20,0.14); }
.error { color: #b83030; font-size: 13px; text-align: center; }
.success { color: #2e7d32; font-size: 13px; text-align: center; }
.link { font-size: 13px; text-align: center; }
.link a { color: #6b5218; opacity: 0.7; }
.link a:hover { opacity: 1; }
/* Login page tabs */
.tabs { display: flex; gap: 0; margin-bottom: 8px; }
.tabs button { flex: 1; padding: 8px; border: 1px solid rgba(100,70,20,0.18); background: transparent; color: #6b5218; font-family: Charter, 'Bitstream Charter', 'Sitka Text', Cambria, serif; font-size: 14px; cursor: pointer; border-bottom: none; border-radius: 4px 4px 0 0; opacity: 0.6; }
.tabs button.active { background: rgba(100,70,20,0.08); opacity: 1; font-weight: 600; }
.tab-content { display: none; }
.tab-content.active { display: contents; }