:root {
    /* Primary Blue Colors */
    --primary-blue: #1e40af;
    --primary-blue-dark: #1e3a8a;
    --primary-blue-light: #3b82f6;
    --primary-blue-lighter: #60a5fa;
    
    /* Secondary Blue Colors */
    --secondary-blue: #0ea5e9;
    --secondary-blue-dark: #0284c7;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    --gradient-hero: linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #3b82f6 100%);
    
    /* Shadows */
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
    min-height: 100vh;
}

/* === AUTH CONTAINER === */
.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
}

/* === LEFT SIDE (FORM) === */
.auth-left {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    background: var(--white);
}

.auth-content {
    width: 100%;
    max-width: 450px;
}

/* Brand Logo */
.brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1rem;
}

.brand-logo i {
    font-size: 2.5rem;
    color: var(--primary-blue);
}

.brand-logo h1 {
    font-size: 2rem;
    color: var(--primary-blue);
    font-weight: 700;
}

/* Auth Header */
.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h2 {
    font-size: 2rem;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.auth-header p {
    color: var(--gray-600);
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.auth-header p i {
    color: var(--primary-blue);
}

/* Alert */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.alert-error i {
    font-size: 1.2rem;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

/* Form */
.auth-form {
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-group label i {
    color: var(--primary-blue);
    font-size: 1rem;
}

.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 1rem;
    pointer-events: none;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.9rem 1rem 0.9rem 2.8rem;
    border: 2px solid var(--gray-200);
    border-radius: 10px;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-group input::placeholder {
    color: var(--gray-400);
}

.btn-submit {
    width: 100%;
    margin-top: 20px;
    padding: 1rem 2rem;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.btn-submit:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-submit i {
    font-size: 1.1rem;
}

/* Auth Footer */
.auth-footer {
    text-align: center;
}

.auth-footer p {
    color: var(--gray-600);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.auth-footer p i {
    color: var(--primary-blue);
}

.auth-footer a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.auth-footer a:hover {
    color: var(--primary-blue-dark);
}

.back-home {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    margin-top: 0.5rem;
}

.back-home:hover {
    color: var(--primary-blue);
}

.back-home i {
    font-size: 1rem;
}

/* === RIGHT SIDE (IMAGE) === */
.auth-right {
    position: relative;
    background: var(--gradient-hero);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    overflow: hidden;
}

.auth-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
}

.auth-right-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: var(--white);
    max-width: 500px;
}

.feature-icon {
    margin-bottom: 2rem;
}

.feature-icon i {
    font-size: 5rem;
    color: var(--white);
    opacity: 0.9;
}

.auth-right-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.auth-right-content p {
    font-size: 1.2rem;
    opacity: 0.95;
    margin-bottom: 2rem;
}

/* Features List */
.features-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem 1.5rem;
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

.feature-item i {
    font-size: 1.3rem;
    color: var(--white);
}

.feature-item span {
    font-size: 1rem;
    font-weight: 500;
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .auth-container {
        grid-template-columns: 1fr;
    }
    
    .auth-right {
        display: none;
    }
    
    .auth-left {
        min-height: 100vh;
    }
}

@media (max-width: 480px) {
    .auth-left {
        padding: 2rem 1.5rem;
    }
    
    .auth-content {
        max-width: 100%;
    }
    
    .brand-logo h1 {
        font-size: 1.5rem;
    }
    
    .brand-logo i {
        font-size: 2rem;
    }
    
    .auth-header h2 {
        font-size: 1.5rem;
    }
    
    .btn-submit {
        padding: 0.9rem 1.5rem;
        font-size: 1rem;
        margin-top: 20px;
    }
}
.demo-info {
    background-color: #FEF3C7;
    padding: 1rem;
    gap: 20px;
    border-radius: 10px;
    margin-top: 1.5rem;
    border-left: 4px solid #FACC15;
}

.demo-info p {
    margin: 0.3rem 0;
    color: #92400E;
    font-size: 0.9rem;
}

.demo-info strong {
    color: #78350F;
}

@media (max-width: 768px) {
    .auth-container {
        padding: 1rem;
    }
    
    .auth-box {
        padding: 2rem 1.5rem;
    }
    
    .auth-box h2 {
        font-size: 1.6rem;
    }
}