/* Simplified Landing Page with Flowing Gradient */

/* Animated Gradient Background */
body {
    background: linear-gradient(-45deg, 
        var(--egyptian-blue-dark), 
        var(--egyptian-blue), 
        var(--egyptian-blue-light), 
        var(--pigment-green),
        var(--egyptian-blue),
        var(--egyptian-blue-dark)
    );
    background-size: 400% 400%;
    animation: gradientFlow 15s ease infinite;
    min-height: 100vh;
    overflow-x: hidden;
}

@keyframes gradientFlow {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Floating Particles */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.particle {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.particle:nth-child(1) {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 8s;
}

.particle:nth-child(2) {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 15%;
    animation-delay: 2s;
    animation-duration: 10s;
}

.particle:nth-child(3) {
    width: 60px;
    height: 60px;
    bottom: 30%;
    left: 20%;
    animation-delay: 4s;
    animation-duration: 7s;
}

.particle:nth-child(4) {
    width: 100px;
    height: 100px;
    top: 40%;
    right: 30%;
    animation-delay: 1s;
    animation-duration: 9s;
}

.particle:nth-child(5) {
    width: 40px;
    height: 40px;
    bottom: 20%;
    right: 10%;
    animation-delay: 3s;
    animation-duration: 6s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.7;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 1;
    }
}

/* Main Container */
.auth-container {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing-4);
}

/* Auth Card */
.auth-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    box-shadow: 
        0 25px 50px -12px rgba(0, 0, 0, 0.25),
        0 0 0 1px rgba(255, 255, 255, 0.2);
    padding: var(--spacing-10);
    width: 100%;
    max-width: 420px;
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, 
        var(--egyptian-blue), 
        var(--pigment-green), 
        var(--egyptian-blue)
    );
    background-size: 200% 100%;
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* Logo and Brand */
.brand-section {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

.logo {
    height: 64px;
    width: auto;
    margin-bottom: var(--spacing-4);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.brand-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--egyptian-blue);
    margin-bottom: var(--spacing-2);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.brand-subtitle {
    color: var(--gray);
    font-size: var(--font-size-lg);
    font-weight: 400;
}

/* Auth Header */
.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

.auth-header h2 {
    color: var(--onyx);
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

.auth-header p {
    color: var(--gray);
    margin-bottom: 0;
    font-size: var(--font-size-base);
}

/* Form Styles */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    width: 100%;
    max-width: 100%;
}

.form-group label {
    font-weight: 600;
    color: var(--onyx);
    font-size: var(--font-size-sm);
}

.optional-text {
    font-weight: 400;
    color: var(--gray);
    font-size: var(--font-size-xs);
}

.form-group input,
.form-group select {
    padding: var(--spacing-4);
    border: 2px solid var(--gray-200);
    border-radius: 12px;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--egyptian-blue);
    box-shadow: 0 0 0 3px rgba(44, 57, 149, 0.1);
    background-color: var(--white);
}

.form-group input:invalid {
    border-color: var(--danger-color);
}

.form-group input:valid {
    border-color: var(--pigment-green);
}

/* Password Input */
.password-input {
    position: relative;
}

.password-input input {
    padding-right: 48px;
}

.password-toggle {
    position: absolute;
    right: var(--spacing-4);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray);
    font-size: var(--font-size-base);
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
    z-index: 10;
}

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

/* Password Strength */
.password-strength {
    height: 4px;
    background-color: var(--gray-200);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-top: var(--spacing-1);
}

.password-strength-bar {
    height: 100%;
    transition: all var(--transition-normal);
    border-radius: var(--radius-sm);
}

.password-strength.weak .password-strength-bar {
    background-color: var(--danger-color);
    width: 25%;
}

.password-strength.fair .password-strength-bar {
    background-color: var(--warning-color);
    width: 50%;
}

.password-strength.good .password-strength-bar {
    background-color: var(--info-color);
    width: 75%;
}

.password-strength.strong .password-strength-bar {
    background-color: var(--pigment-green);
    width: 100%;
}

/* Form Options */
.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-2);
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--gray);
    line-height: 1.4;
}

.checkbox-text {
    flex: 1;
    line-height: 1.4;
}

.checkbox-text a {
    color: var(--egyptian-blue);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.checkbox-text a:hover {
    color: var(--egyptian-blue-dark);
    text-decoration: underline;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    margin-top: 2px;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: var(--egyptian-blue);
    border-color: var(--egyptian-blue);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    color: var(--white);
    font-size: var(--font-size-xs);
    font-weight: bold;
}

.forgot-link {
    color: var(--egyptian-blue);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.forgot-link:hover {
    color: var(--egyptian-blue-dark);
    text-decoration: underline;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    user-select: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--egyptian-blue), var(--egyptian-blue-light));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(44, 57, 149, 0.3);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(44, 57, 149, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.9);
    color: var(--egyptian-blue);
    border: 2px solid var(--egyptian-blue);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--egyptian-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(44, 57, 149, 0.3);
}

.btn-full {
    width: 100%;
}

/* Auth Divider */
.auth-divider {
    position: relative;
    text-align: center;
    margin: var(--spacing-6) 0;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gray-300), transparent);
    z-index: 1;
}

.auth-divider span {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: var(--spacing-2) var(--spacing-4);
    color: var(--gray);
    font-size: var(--font-size-sm);
    font-weight: 500;
    position: relative;
    z-index: 2;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Error Messages */
.error-message {
    color: var(--danger-color);
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-1);
    display: none;
    font-weight: 500;
}

.error-message.show {
    display: block;
}

.form-group.error input,
.form-group.error select {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 3px rgba(229, 62, 62, 0.1);
}

.form-group.error label {
    color: var(--danger-color);
}

/* Success Messages */
.success-message {
    color: var(--pigment-green);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-2);
    display: none;
    font-weight: 500;
}

.success-message.show {
    display: block;
}

/* Responsive Design */
@media (max-width: 768px) {
    .auth-container {
        padding: var(--spacing-3);
    }
    
    .auth-card {
        padding: var(--spacing-8);
        max-width: 100%;
    }
    
    .brand-title {
        font-size: var(--font-size-2xl);
    }
    
    .brand-subtitle {
        font-size: var(--font-size-base);
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-3);
    }
}

@media (max-width: 480px) {
    .auth-card {
        padding: var(--spacing-6);
        border-radius: 16px;
    }
    
    .brand-title {
        font-size: var(--font-size-xl);
    }
    
    .logo {
        height: 48px;
    }
    
    .particle {
        display: none;
    }
    
    .checkbox-label {
        align-items: flex-start;
        gap: var(--spacing-3);
    }
    
    .checkbox-text {
        font-size: var(--font-size-xs);
        line-height: 1.3;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .auth-card {
        background: rgba(30, 30, 30, 0.95);
        color: var(--white);
    }
    
    .form-group input,
    .form-group select {
        background-color: rgba(40, 40, 40, 0.8);
        color: var(--white);
        border-color: var(--gray-600);
    }
    
    .form-group input:focus,
    .form-group select:focus {
        background-color: rgba(50, 50, 50, 0.9);
    }
    
    .auth-header h2 {
        color: var(--white);
    }
    
    .form-group label {
        color: var(--gray-200);
    }
    
    .auth-divider span {
        background: rgba(30, 30, 30, 0.95);
        border: 1px solid rgba(255, 255, 255, 0.1);
        color: var(--gray-300);
    }
    
    .auth-divider::before {
        background: linear-gradient(90deg, transparent, var(--gray-600), transparent);
    }
}