:root {
  --bg-gradient: linear-gradient(135deg, #2a0845 0%, #6441a5 100%);
  --glass: rgba(255, 255, 255, 0.12);
  --border-glass: rgba(255, 255, 255, 0.25);
  --accent: #a855f7;
  --text-light: #f3f4f6;
  --label-bg: #41206a; /* Dark purple to match floating labels */
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Inter", system-ui, sans-serif;
}

body {
  min-height: 100vh;
  background: var(--bg-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.main-container {
  width: 100%;
  display: flex;
  justify-content: center;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--glass);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border-glass);
  border-radius: 18px;
  padding: 28px 26px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, .35);
  color: var(--text-light);
  animation: fadeUp .6s ease;
}

.login-card h2 {
  text-align: center;
  margin-bottom: 6px;
  font-size: 24px;
}

.subtitle {
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, .75);
  margin-bottom: 18px;
}

/* Error Message */
.error-msg {
  background: rgba(245, 101, 101, .25);
  color: #feb2b2;
  padding: 10px;
  border-radius: 10px;
  text-align: center;
  font-size: 14px;
  margin-bottom: 14px;
  border: 1px solid rgba(245, 101, 101, 0.5);
}

/* Google Sign-In Button Styling */
.g_id_signin {
  margin-bottom: 5px;
  display: flex;
  justify-content: center;
}

/* Separator Line */
.separator {
  text-align: center;
  margin: 15px 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.separator::before, .separator::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(255, 255, 255, 0.2);
}

/* Input Group Logic */
.input-group {
  position: relative;
  margin-bottom: 16px;
}

.input-group input {
  width: 100%;
  padding: 14px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, .25);
  background: rgba(255, 255, 255, .1);
  color: #fff;
  outline: none;
  font-size: 14px;
  transition: 0.3s;
}

.input-group label {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 13px;
  color: rgba(255, 255, 255, .65);
  pointer-events: none;
  transition: .25s;
}

/* Floating Label Logic */
.input-group input:focus + label,
.input-group input:not(:placeholder-shown) + label {
  top: -2px;
  font-size: 11px;
  color: #c4b5fd;
  background: var(--label-bg);
  padding: 0 6px;
  border-radius: 4px;
}

.input-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(168, 85, 247, .35);
  background: rgba(255, 255, 255, 0.15);
}

/* Password Eye Icon */
.password-group {
  position: relative;
}
.password-group span {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  font-size: 18px;
  opacity: .7;
  user-select: none;
  z-index: 10;
}
.password-group span:hover {
  opacity: 1;
}

/* Links */
.forgot-password {
  text-align: right;
  margin-bottom: 14px;
}
.forgot-password a {
  font-size: 13px;
  color: #c4b5fd;
  text-decoration: none;
}

.register-link {
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
}
.register-link a {
  color: #c4b5fd;
  font-weight: 600;
  text-decoration: none;
}
.register-link a:hover, .forgot-password a:hover {
  text-decoration: underline;
}

/* Primary Button */
.btn {
  width: 100%;
  padding: 13px;
  background: linear-gradient(135deg, #a855f7, #7c3aed);
  border: none;
  border-radius: 10px;
  color: white;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: .25s;
}
.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(124, 58, 237, .45);
}

/* Guest Button */
.btn-guest {
  width: 100%;
  padding: 12px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: .25s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn-guest:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Mobile Responsiveness */
@media (max-width: 650px) {
  body { padding: 15px; align-items: flex-start; }
  .main-container { padding-top: 10vh; }
  .login-card { padding: 24px 20px; border-radius: 16px; }
  .login-card h2 { font-size: 20px; }
  .input-group input { padding: 12px; }
}