html, body { overflow: auto; }

.auth-wrap {
  position: relative;
  z-index: 2;
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.back-link {
  position: absolute;
  top: 20px;
  left: 24px;
  color: #0f2a13;
  text-decoration: none;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.35);
  padding: 8px 14px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
  transition: background 0.15s ease;
}
.back-link:hover { background: rgba(255, 255, 255, 0.55); }

.auth-card {
  width: 100%;
  max-width: 420px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 36px 32px 28px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.auth-brand {
  font-size: 2rem;
  color: #14301a;
  text-align: center;
  letter-spacing: 1px;
}

.auth-sub {
  text-align: center;
  color: #3b5c41;
  margin-bottom: 22px;
  font-size: 0.95rem;
}

.tabs {
  display: flex;
  gap: 6px;
  background: rgba(27, 58, 31, 0.08);
  padding: 4px;
  border-radius: 12px;
  margin-bottom: 22px;
}

.tab {
  flex: 1;
  border: none;
  background: transparent;
  padding: 10px 12px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #2e6b35;
  border-radius: 9px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.tab:hover { color: #14301a; }

.tab.active {
  background: #2e6b35;
  color: #eaf6d4;
  box-shadow: 0 2px 6px rgba(27, 58, 31, 0.25);
}

.auth-form { display: flex; flex-direction: column; gap: 14px; }
.auth-form.hidden { display: none; }

.auth-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #2e4a33;
}

.auth-form input {
  font: inherit;
  padding: 11px 13px;
  border-radius: 10px;
  border: 1.5px solid rgba(46, 107, 53, 0.3);
  background: #fff;
  color: #0f1a10;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.auth-form input:focus {
  outline: none;
  border-color: #2e6b35;
  box-shadow: 0 0 0 3px rgba(46, 107, 53, 0.18);
}

.submit {
  margin-top: 6px;
  padding: 12px 14px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, #2e6b35, #1b3a1f);
  color: #eaf6d4;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.08s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.submit:hover { filter: brightness(1.08); box-shadow: 0 6px 16px rgba(27, 58, 31, 0.3); }
.submit:active { transform: translateY(1px); }

.form-msg {
  min-height: 1.2em;
  font-size: 0.85rem;
  margin-top: 4px;
  text-align: center;
}
.form-msg.error { color: #8a1e1e; }
.form-msg.success { color: #1f5a2a; }

.divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 22px 0 16px;
  color: #4a5e4f;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(27, 58, 31, 0.2);
}

.roblox-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 14px;
  border: 1.5px solid rgba(27, 58, 31, 0.25);
  background: #fff;
  color: #14301a;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.roblox-btn:hover {
  background: #f5fbee;
  border-color: #2e6b35;
}

.roblox-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background: #111;
  color: #fff;
  border-radius: 4px;
  font-weight: 800;
  font-size: 0.8rem;
  font-family: 'Arial Black', sans-serif;
}

.optional-tag {
  font-size: 0.7rem;
  font-weight: 500;
  color: #4a5e4f;
  background: rgba(27, 58, 31, 0.08);
  padding: 2px 8px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.demo-note {
  text-align: center;
  margin-top: 18px;
  font-size: 0.75rem;
  color: #4a5e4f;
  opacity: 0.85;
}