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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* Dil Seçici Stilleri */
.language-selector {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    background: rgba(255, 255, 255, 0.95);
    padding: 15px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    max-width: 300px;
}

.language-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 12px;
    border: 2px solid transparent;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.8);
    color: #2c3e50;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 60px;
    justify-content: center;
}

.language-btn:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: #667eea;
    transform: translateY(-2px);
}

.language-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: #667eea;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.language-btn .flag {
    font-size: 1.1rem;
}

/* Responsive dil seçici */
@media (max-width: 768px) {
    .language-selector {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
        padding: 10px;
        gap: 6px;
    }
    
    .language-btn {
        padding: 6px 8px;
        font-size: 0.75rem;
        min-width: 50px;
    }
    
    .language-btn .flag {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .language-selector {
        gap: 4px;
        padding: 8px;
    }
    
    .language-btn {
        padding: 5px 6px;
        font-size: 0.7rem;
        min-width: 45px;
        gap: 3px;
    }
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-section {
    text-align: center;
    margin-bottom: 60px;
    background: rgba(255, 255, 255, 0.95);
    padding: 60px 40px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.main-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: #2c3e50;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    letter-spacing: -1px;
}

.subtitle {
    font-size: 1.3rem;
    color: #7f8c8d;
    font-weight: 300;
}

.content {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    margin-bottom: 30px;
}

.info-section {
    text-align: center;
    margin-bottom: 40px;
}

.info-section h2 {
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.info-section p {
    font-size: 1.1rem;
    color: #7f8c8d;
    max-width: 600px;
    margin: 0 auto;
}

.contact-form {
    max-width: 500px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
    font-size: 1rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e6ed;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.submit-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

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

footer {
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    margin-top: 20px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .main-title {
        font-size: 2.5rem;
    }
    
    .hero-section,
    .content {
        padding: 30px 25px;
    }
    
    .subtitle {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 2rem;
    }
    
    .hero-section,
    .content {
        padding: 25px 20px;
    }
}

/* Success Message */
.success-message {
    background: #d4edda;
    color: #155724;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    border: 1px solid #c3e6cb;
    text-align: center;
    font-weight: 600;
}

.error-message {
    background: #f8d7da;
    color: #721c24;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    border: 1px solid #f5c6cb;
    text-align: center;
    font-weight: 600;
}