:root {
  --primary: #0a1628;
  --primary-light: #0f1d35;
  --primary-lighter: #162240;
  --gold: #c9a84c;
  --gold-light: #d4af37;
  --gold-dark: #a8882e;
  --text-primary: #ffffff;
  --text-secondary: #b8c5d6;
  --text-muted: #6c7a96;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-hover: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --radius: 16px;
  --radius-sm: 8px;
  --radius-full: 50px;
  --transition: all 0.3s ease;
  --gradient-gold: linear-gradient(135deg, var(--gold), var(--gold-light));
  --gradient-bg: linear-gradient(135deg, #0a1628 0%, #1a2a4a 50%, #0d1f3c 100%);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.auth-page {
  font-family: 'Poppins', sans-serif;
  background: var(--gradient-bg);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

/* Animated background */
.auth-page::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(201, 168, 76, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(212, 175, 55, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(201, 168, 76, 0.05) 0%, transparent 50%);
  animation: bgShift 15s ease-in-out infinite alternate;
  z-index: 0;
}

@keyframes bgShift {
  0% { transform: scale(1) rotate(0deg); }
  50% { transform: scale(1.1) rotate(2deg); }
  100% { transform: scale(1) rotate(-1deg); }
}

/* Floating particles */
.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--gold);
  border-radius: 50%;
  opacity: 0.3;
  animation: float linear infinite;
}

.particle:nth-child(1) { left: 10%; animation-duration: 12s; animation-delay: 0s; width: 3px; height: 3px; }
.particle:nth-child(2) { left: 25%; animation-duration: 15s; animation-delay: 1s; width: 5px; height: 5px; }
.particle:nth-child(3) { left: 40%; animation-duration: 10s; animation-delay: 2s; width: 2px; height: 2px; }
.particle:nth-child(4) { left: 55%; animation-duration: 18s; animation-delay: 0.5s; width: 4px; height: 4px; }
.particle:nth-child(5) { left: 70%; animation-duration: 13s; animation-delay: 1.5s; width: 3px; height: 3px; }
.particle:nth-child(6) { left: 85%; animation-duration: 16s; animation-delay: 3s; width: 6px; height: 6px; }
.particle:nth-child(7) { left: 50%; animation-duration: 14s; animation-delay: 0.2s; width: 2px; height: 2px; }
.particle:nth-child(8) { left: 15%; animation-duration: 11s; animation-delay: 2.5s; width: 4px; height: 4px; }
.particle:nth-child(9) { left: 65%; animation-duration: 17s; animation-delay: 1.8s; width: 3px; height: 3px; }
.particle:nth-child(10) { left: 35%; animation-duration: 19s; animation-delay: 0.8s; width: 5px; height: 5px; }

@keyframes float {
  0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10% { opacity: 0.3; }
  90% { opacity: 0.3; }
  100% { transform: translateY(-10vh) rotate(720deg); opacity: 0; }
}

/* Glass card */
.auth-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  margin: 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--glass-shadow);
  padding: 40px 35px;
}

.auth-card .logo {
  text-align: center;
  margin-bottom: 30px;
}

.auth-card .logo img {
  max-height: 60px;
}

.auth-card .logo h2 {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-top: 8px;
}

.auth-card .subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 28px;
}

/* Form groups */
.form-group {
  margin-bottom: 20px;
  position: relative;
}

.form-group label {
  display: block;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 6px;
  letter-spacing: 0.3px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: 'Poppins', sans-serif;
  transition: var(--transition);
  outline: none;
}

.form-input:focus {
  border-color: var(--gold);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.15);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-input.is-invalid {
  border-color: #e74c3c;
}

.invalid-feedback {
  display: block;
  color: #e74c3c;
  font-size: 0.8rem;
  margin-top: 4px;
}

/* Input with icon */
.input-icon-wrapper {
  position: relative;
}

.input-icon-wrapper .form-input {
  padding-left: 42px;
}

.input-icon-wrapper .input-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1rem;
  transition: var(--transition);
  pointer-events: none;
}

.input-icon-wrapper .form-input:focus ~ .input-icon {
  color: var(--gold);
}

/* Password toggle */
.password-toggle {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  transition: var(--transition);
  z-index: 2;
}

.password-toggle:hover {
  color: var(--gold);
}

/* Button */
.btn-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 13px 24px;
  background: var(--gradient-gold);
  border: none;
  border-radius: var(--radius-sm);
  color: #0a1628;
  font-size: 1rem;
  font-weight: 600;
  font-family: 'Poppins', sans-serif;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  letter-spacing: 0.3px;
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(201, 168, 76, 0.35);
}

.btn-gold:active {
  transform: translateY(0);
}

.btn-link {
  display: inline-block;
  color: var(--gold);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition);
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Poppins', sans-serif;
}

.btn-link:hover {
  color: var(--gold-light);
  text-decoration: underline;
}

/* Auth links */
.auth-links {
  text-align: center;
  margin-top: 24px;
}

.auth-links p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 6px;
}

.auth-links a {
  color: var(--gold);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.auth-links a:hover {
  color: var(--gold-light);
  text-decoration: underline;
}

/* Remember me */
.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.form-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--gold);
  cursor: pointer;
}

.form-check label {
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
}

/* Alert */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 0.85rem;
}

.alert-success {
  background: rgba(46, 204, 113, 0.1);
  border: 1px solid rgba(46, 204, 113, 0.2);
  color: #2ecc71;
}

/* Responsive */
@media (max-width: 480px) {
  .auth-card {
    padding: 30px 20px;
    margin: 16px;
    border-radius: 12px;
  }

  .auth-card .logo h2 {
    font-size: 1.25rem;
  }
}