/* Login Sayfası Stilleri */
body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-box {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
    width: 100%;
    max-width: 450px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h2 {
    color: #333;
    font-weight: 700;
    margin-bottom: 10px;
    font-size: 2rem;
}

.login-header h2 i {
    color: #667eea;
    margin-right: 10px;
}

.login-header p {
    color: #666;
    font-size: 1rem;
    margin: 0;
}

.form-label {
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.form-control {
    border: 2px solid #e9ecef;
    border-radius: 10px;
    padding: 12px 15px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.8);
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    background: white;
}

.input-group-text {
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-right: none;
    color: #667eea;
    font-weight: 600;
}

.input-group .form-control {
    border-left: none;
}

.input-group .form-control:focus {
    border-left: none;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 10px;
    padding: 12px 30px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
}

.btn-outline-secondary {
    border: 2px solid #e9ecef;
    color: #667eea;
    border-radius: 0 10px 10px 0;
    transition: all 0.3s ease;
}

.btn-outline-secondary:hover {
    background: #667eea;
    border-color: #667eea;
    color: white;
}

.alert {
    border-radius: 10px;
    border: none;
    padding: 15px 20px;
    margin-bottom: 20px;
    font-weight: 500;
}

.alert-danger {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a52 100%);
    color: white;
}

.alert-success {
    background: linear-gradient(135deg, #51cf66 0%, #40c057 100%);
    color: white;
}

.login-footer {
    margin-top: 30px;
    text-align: center;
}

.login-footer a {
    color: #667eea;
    font-weight: 600;
    transition: color 0.3s ease;
}

.login-footer a:hover {
    color: #5a6fd8;
    text-decoration: underline !important;
}

/* reCAPTCHA Stilleri */
.g-recaptcha {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}

/* Responsive Tasarım */
@media (max-width: 576px) {
    .login-box {
        padding: 30px 20px;
        margin: 10px;
    }
    
    .login-header h2 {
        font-size: 1.5rem;
    }
    
    .btn-primary {
        padding: 10px 25px;
        font-size: 1rem;
    }
}

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

.login-box {
    animation: fadeInUp 0.6s ease-out;
}

/* Form Validasyon Stilleri */
.form-control.is-invalid {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.form-control.is-valid {
    border-color: #28a745;
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

.invalid-feedback {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 5px;
}

.valid-feedback {
    color: #28a745;
    font-size: 0.875rem;
    margin-top: 5px;
}

/* Loading Spinner */
.btn-loading {
    position: relative;
    color: transparent !important;
}

.btn-loading::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

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