:root {
    --primary-color: #4f46e5;
    --primary-dark: #3730a3;
    --secondary-color: #06b6d4;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Auth Container */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 2rem 1rem;
}

.auth-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%" r="50%"><stop offset="0%" stop-color="%23ffffff" stop-opacity="0.1"/><stop offset="100%" stop-color="%23ffffff" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="100" fill="url(%23a)"/><circle cx="800" cy="300" r="150" fill="url(%23a)"/><circle cx="400" cy="700" r="120" fill="url(%23a)"/><circle cx="900" cy="800" r="80" fill="url(%23a)"/></svg>');
    opacity: 0.3;
    z-index: 1;
}

/* Auth Card */
.auth-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    width: 100%;
    max-width: 700px;
    position: relative;
    z-index: 2;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

/* Auth Header */
.auth-header {
    text-align: center;
    padding: 2.5rem 2rem 1rem;
}

.auth-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.auth-logo .default-logo {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
}

.auth-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 0;
}

/* Auth Body */
.auth-body {
    padding: 0 2rem 2rem;
}

/* Form Styles */
.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0 !important;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    white-space: nowrap;
    min-height: 3.5rem;
}

.form-label i {
    margin-right: 0.75rem;
    font-size: 1rem;
    color: var(--primary-color);
}

/* Removed custom CSS overrides - using Bootstrap classes only */

/* Form controls now use Bootstrap defaults */

.invalid-feedback {
    display: block;
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* Checkbox Styles - Using Bootstrap defaults */

/* Button Styles */
.btn-auth {
    width: 100%;
    padding: 1.25rem 2rem;
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: 12px;
    border: none;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    height: 3.5rem;
}

.btn-primary-auth {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary-auth:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

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

/* Link Styles */
.auth-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.auth-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Alert Styles */
.alert {
    border: none;
    border-radius: 12px;
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

.alert i {
    margin-right: 0.5rem;
    font-size: 1rem;
}

/* Auth Footer */
.auth-footer {
    text-align: center;
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border-color);
    background: rgba(248, 250, 252, 0.5);
}

.auth-footer-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.auth-copyright {
    color: var(--text-secondary);
    font-size: 0.75rem;
    margin: 0;
}

/* Floating Elements */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.floating-element {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    width: 60px;
    height: 60px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    width: 80px;
    height: 80px;
    top: 60%;
    right: 15%;
    animation-delay: 3s;
}

.floating-element:nth-child(3) {
    width: 40px;
    height: 40px;
    top: 80%;
    left: 20%;
    animation-delay: 6s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .auth-container {
        padding: 1rem;
    }
    
    .auth-card {
        max-width: 100%;
        margin: 0 1rem;
    }
    
    .auth-header {
        padding: 2rem 1.5rem 1rem;
    }
    
    .auth-body {
        padding: 0 1.5rem 1.5rem;
    }
    
    .auth-footer {
        padding: 1rem 1.5rem;
    }
    
    .auth-title {
        font-size: 1.75rem;
    }
    
    /* Using Bootstrap responsive classes instead of custom CSS */
}

@media (max-width: 480px) {
    .auth-header {
        padding: 1.5rem 1rem 0.5rem;
    }
    
    .auth-body {
        padding: 0 1rem 1rem;
    }
    
    .auth-footer {
        padding: 1rem;
    }
    
    .auth-logo {
        width: 60px;
        height: 60px;
        margin-bottom: 1rem;
    }
    
    .auth-title {
        font-size: 1.5rem;
    }
}

/* Loading Animation */
.btn-auth.loading {
    position: relative;
    color: transparent;
}

.btn-auth.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}