/* CSS Variables & Theme (Modern Dark Luxury) */
:root {
  /* Colors */
  --bg-color: #0b0d10;
  --card-bg: rgba(18, 20, 24, 0.65);
  --card-border: rgba(255, 255, 255, 0.06);
  --text-primary: #f8f9fa;
  --text-secondary: #949aa5;
  --accent-color: #d4af37; /* Luxury Gold */
  --accent-hover: #e8c653;
  --input-bg: rgba(0, 0, 0, 0.25);
  --input-border: rgba(255, 255, 255, 0.08);
  --input-focus: rgba(212, 175, 55, 0.4);
  
  /* Status Colors */
  --error-color: #ef4444;
  --success-color: #22c55e;
  
  /* Typography */
  --font-primary: 'Roboto', system-ui, sans-serif;
  --font-heading: 'Oswald', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  
  /* Transitions & Shadows */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-card: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 20px rgba(212, 175, 55, 0.2);
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-color);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  /* Elegant ambient background light */
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(212, 175, 55, 0.04), transparent 30%),
    radial-gradient(circle at 85% 30%, rgba(212, 175, 55, 0.05), transparent 30%);
  position: relative;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Background Decorative Elements */
body::before, body::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  z-index: -1;
}

body::before {
  width: 300px;
  height: 300px;
  background: rgba(212, 175, 55, 0.06);
  top: -10%;
  left: -5%;
}

body::after {
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.02);
  bottom: -15%;
  right: -5%;
}

/* ==========================================================================
   Login Container & Card (Glassmorphism)
   ========================================================================== */
.login__container {
  width: 100%;
  max-width: 440px;
  padding: var(--spacing-lg);
  z-index: 1;
}

.login__card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-card);
  animation: fadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* ==========================================================================
   Header & Typography
   ========================================================================== */
.login__header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.login__header h2 {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-color);
  margin-bottom: var(--spacing-xs);
}

.login__header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ==========================================================================
   Form Elements
   ========================================================================== */
.login__form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.login__form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}

.login__form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  transition: color var(--transition-fast);
}

.login__input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.login__form-group input:not([type="checkbox"]) {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition-normal);
  outline: none;
}

.login__form-group input:not([type="checkbox"])::placeholder {
  color: rgba(148, 154, 165, 0.4);
}

/* Focus State */
.login__form-group input:not([type="checkbox"]):focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 4px var(--input-focus);
  background: rgba(0, 0, 0, 0.4);
}

.login__form-group input:not([type="checkbox"]):focus + label,
.login__form-group input:not([type="checkbox"]):focus ~ label {
  color: var(--accent-color);
}

/* Password Toggle Icon */
.login__password-toggle {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  cursor: pointer;
  transition: color var(--transition-fast);
  background: none;
  border: none;
  padding: 4px;
}

.login__password-toggle:hover {
  color: var(--text-primary);
}

/* ==========================================================================
   Form Utilities (Remember Me & Forgot Password)
   ========================================================================== */
.login__options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  margin-top: -8px;
}

.login__remember {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.login__remember:hover {
  color: var(--text-primary);
}

.login__remember input[type="checkbox"] {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 1px solid var(--input-border);
  border-radius: 4px;
  background: var(--input-bg);
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast);
}

.login__remember input[type="checkbox"]:checked {
  background: var(--accent-color);
  border-color: var(--accent-color);
}

.login__remember input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 2px;
  width: 4px;
  height: 8px;
  border: solid #000;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.login__forgot {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.login__forgot:hover {
  color: var(--accent-hover);
}

/* ==========================================================================
   Buttons & States
   ========================================================================== */
.login__btn {
  background: var(--accent-color);
  color: #000;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 15px;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-top: var(--spacing-sm);
  position: relative;
  overflow: hidden;
}

.login__btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.login__btn:active {
  transform: translateY(0);
}

/* Button Loading State */
.login__btn.is-loading {
  color: transparent;
  pointer-events: none;
}

.login__btn.is-loading::after {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  border: 3px solid rgba(0, 0, 0, 0.2);
  border-top-color: #000;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Divider */
.login__divider {
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin: var(--spacing-lg) 0;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.login__divider::before,
.login__divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--input-border);
}

.login__divider::before { margin-right: 15px; }
.login__divider::after { margin-left: 15px; }

/* ==========================================================================
   Social Login
   ========================================================================== */
.login__social {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.login__social-btn {
  background: transparent;
  border: 1px solid var(--input-border);
  color: var(--text-primary);
  padding: 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
}

.login__social-btn:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.15);
}

/* ==========================================================================
   Validation States (Error & Success)
   ========================================================================== */
.login__form-group.has-error input:not([type="checkbox"]) {
  border-color: var(--error-color);
  background: rgba(239, 68, 68, 0.05);
}

.login__form-group.has-error input:not([type="checkbox"]):focus {
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.2);
}

.login__error-text {
  display: none;
  color: var(--error-color);
  font-size: 0.8rem;
  margin-top: 4px;
}

.login__form-group.has-error .login__error-text {
  display: block;
}

.login__form-group.has-success input:not([type="checkbox"]) {
  border-color: var(--success-color);
}

.login__form-group.has-success input:not([type="checkbox"]):focus {
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.2);
}

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

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media screen and (max-width: 480px) {
  .login__container {
    padding: var(--spacing-md);
  }
  
  .login__card {
    padding: var(--spacing-lg);
  }

  .login__header h2 {
    font-size: 2rem;
  }
  
  .login__social {
    grid-template-columns: 1fr;
  }
  
  .login__options {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}

/* Logout styling */
.navbar-logout-btn {
  
}