/* ============================================
   Authentication Stylesheet
   صفحات المصادقة - تسجيل الدخول والتسجيل
   مؤسسة محمود الحفناوى للتنمية الخيرية
   ============================================ */

/* ============================================
   1. Auth Wrapper
   ============================================ */

.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #134b61 0%, #1a5f7a 40%, #2289b0 100%);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    padding: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

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

/* Background Pattern */
.auth-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

/* Decorative Circles */
.auth-wrapper::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    top: -150px;
    right: -100px;
}

/* ============================================
   2. Auth Container & Card
   ============================================ */

.auth-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 480px;
}

.auth-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    padding: var(--spacing-2xl);
    animation: fadeInUp 0.6s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   3. Auth Logo & Header
   ============================================ */

.auth-logo {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-logo img {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    padding: 10px;
    background: var(--white);
}

.auth-logo .logo-icon {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    font-size: 2.5rem;
    color: white;
    box-shadow: 0 5px 15px rgba(26, 95, 122, 0.3);
}

.auth-title {
    text-align: center;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
}

.auth-subtitle {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

/* ============================================
   4. Auth Forms
   ============================================ */

.auth-form .form-group {
    margin-bottom: var(--spacing-lg);
}

.auth-form .form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--gray-700);
}

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

.auth-form .form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    background: var(--gray-50);
}

.auth-form .form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(26, 95, 122, 0.1);
}

.auth-form .form-control.is-invalid {
    border-color: var(--danger);
    background: #fff5f5;
}

.auth-form .invalid-feedback {
    font-size: var(--font-size-xs);
    color: var(--danger);
    margin-top: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: 4px;
}

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

.password-toggle {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-400);
    padding: 4px;
    transition: color var(--transition-fast);
}

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

/* ============================================
   5. Remember Me & Forgot Password
   ============================================ */

.auth-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.remember-me {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.remember-me input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    cursor: pointer;
}

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

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

/* ============================================
   6. Auth Buttons
   ============================================ */

.auth-btn {
    width: 100%;
    padding: 0.875rem;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 700;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.auth-btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(26, 95, 122, 0.3);
}

.auth-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(26, 95, 122, 0.4);
}

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

.auth-btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ============================================
   7. Auth Footer
   ============================================ */

.auth-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

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

.auth-footer a:hover {
    text-decoration: underline;
}

/* ============================================
   8. Social Login
   ============================================ */

.social-login {
    margin-top: var(--spacing-lg);
}

.social-login-divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--gray-400);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
}

.social-login-divider::before,
.social-login-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--gray-200);
}

.social-login-divider::before { margin-left: var(--spacing-md); }
.social-login-divider::after { margin-right: var(--spacing-md); }

.social-buttons {
    display: flex;
    gap: var(--spacing-md);
}

.social-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    background: var(--white);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.social-btn:hover {
    background: var(--gray-50);
    border-color: var(--gray-300);
}

.social-btn.google { color: #ea4335; }
.social-btn.facebook { color: #1877f2; }
.social-btn.apple { color: #000; }

/* ============================================
   9. Auth Alerts
   ============================================ */

.auth-alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.auth-alert-success {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
}

.auth-alert-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.auth-alert-warning {
    background: #fffbeb;
    border: 1px solid #fde68a;
    color: #92400e;
}

/* ============================================
   10. Password Strength Meter
   ============================================ */

.password-strength {
    margin-top: var(--spacing-sm);
}

.strength-bar {
    height: 4px;
    background: var(--gray-200);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: var(--spacing-xs);
}

.strength-fill {
    height: 100%;
    border-radius: 2px;
    transition: all var(--transition-base);
}

.strength-weak { width: 25%; background: var(--danger); }
.strength-fair { width: 50%; background: var(--warning); }
.strength-good { width: 75%; background: #3b82f6; }
.strength-strong { width: 100%; background: var(--success); }

.strength-text {
    font-size: var(--font-size-xs);
}

/* ============================================
   11. Two Factor
   ============================================ */

.two-factor-code {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.two-factor-code input {
    width: 50px;
    height: 60px;
    text-align: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
}

.two-factor-code input:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(26, 95, 122, 0.1);
}

/* ============================================
   12. Responsive
   ============================================ */

@media (max-width: 576px) {
    .auth-wrapper {
        padding: var(--spacing-md);
        align-items: flex-start;
        padding-top: var(--spacing-2xl);
    }
    
    .auth-card {
        padding: var(--spacing-xl);
        border-radius: var(--radius-lg);
    }
    
    .auth-logo img,
    .auth-logo .logo-icon {
        width: 70px;
        height: 70px;
        font-size: 2rem;
    }
    
    .auth-title {
        font-size: var(--font-size-xl);
    }
    
    .auth-form .form-control {
        padding: 0.625rem 0.875rem;
    }
    
    .social-buttons {
        flex-direction: column;
    }
    
    .two-factor-code input {
        width: 42px;
        height: 50px;
        font-size: var(--font-size-lg);
    }
}