/* Temel Stiller */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Üst Bant (Hero Section) */
.hero {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: white;
    padding: 60px 20px;
    text-align: center;
}

.logo {
    width: 150px;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 2. Bölüm: Hizmetler */
.services {
    padding: 60px 0;
    background: white;
}

.services-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
}

.services-text {
    flex: 1;
    min-width: 300px;
}

.services-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.services-image img {
    width: 100%;
    max-width: 500px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.services h2 {
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 20px;
    position: relative;
}

.services h2::after {
    content: '';
    position: absolute;
    width: 50px;
    height: 3px;
    background: #3498db;
    bottom: -10px;
    left: 0;
}

/* 3. Bölüm: Çözümlerimiz */
.solutions {
    padding: 60px 0;
    background: #f1f5f9;
}

.solutions h2 {
    text-align: center;
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 40px;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.solution-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.solution-card:hover {
    transform: translateY(-10px);
}

.solution-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.solution-content {
    padding: 20px;
}

.solution-content h3 {
    color: #3498db;
    margin-bottom: 10px;
}

/* 4. Bölüm: Sayılarımız */
.stats {
    padding: 80px 0;
    background: white;
}

.stats-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
}

.stats-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.stats-image img {
    width: 100%;
    max-width: 600px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.stats-numbers {
    flex: 1;
    min-width: 300px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: #f8fafc;
    border-radius: 10px;
    transition: all 0.3s;
}

.stat-item:hover {
    transform: translateY(-5px);
    background: #f1f5f9;
}

.stat-item img {
    width: 60px;
    height: 60px;
    margin-bottom: 15px;
    object-fit: contain;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin: 10px 0;
}

.stat-label {
    color: #64748b;
    font-size: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .services-content {
        flex-direction: column;
    }
    
    .stats-container {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 40px 15px;
    }
    
    .hero h1 {
        font-size: 1.5rem;
    }
}

/* 5. Bölüm: İletişim */
.contact {
    padding: 80px 0;
    background: #f1f5f9;
}

.contact h2 {
    text-align: center;
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 40px;
}

.contact-container {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: flex-start;
}

.contact-info {
    flex: 1;
    min-width: 300px;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.contact-image {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 20px;
}

.contact-details h3 {
    color: #3498db;
    margin-bottom: 15px;
}

.contact-link {
    color: #2c3e50;
    text-decoration: none;
    transition: color 0.3s;
}

.contact-link:hover {
    color: #3498db;
}

.contact-form {
    flex: 1;
    min-width: 300px;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
}

.captcha {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
}

#captchaText {
    font-weight: bold;
    color: #3498db;
    letter-spacing: 2px;
}

.submit-btn {
    background: #3498db;
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.3s;
}

.submit-btn:hover {
    background: #2980b9;
}

/* Modern Pop-up */
.popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(5px);
}

.popup-content {
    background: white;
    padding: 40px;
    border-radius: 15px;
    max-width: 400px;
    text-align: center;
    position: relative;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    animation: fadeIn 0.3s;
}

.popup-icon {
    font-size: 50px;
    color: #4CAF50;
    margin-bottom: 20px;
}

.popup h3 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.popup p {
    color: #666;
    margin-bottom: 20px;
}

.popup-progress {
    height: 5px;
    background: #e0e0e0;
    border-radius: 3px;
    overflow: hidden;
}

.popup-progress::after {
    content: '';
    display: block;
    height: 100%;
    width: 100%;
    background: #4CAF50;
    animation: progressBar 5s linear forwards;
}

@keyframes progressBar {
    from { width: 100%; }
    to { width: 0%; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 40px 0;
    font-size: 0.9rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    align-items: center;
    gap: 30px;
}

.footer-col {
    text-align: center;
}

.footer-logo {
    width: 150px;
    height: auto;
    /* ESKİ HATALI KURAL: filter: brightness(0) invert(1); */
    /* YENİ KURAL: */
    opacity: 0.9;
    transition: opacity 0.3s;
}

.footer-logo:hover {
    opacity: 1;
}

.copyright {
    color: rgba(255,255,255,0.7);
    line-height: 1.6;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.social-icon {
    width: 24px;
    height: 24px;
    fill: white;
    transition: all 0.3s ease;
}

.social-icon:hover {
    fill: #3498db;
    transform: translateY(-3px);
}

/* Responsive */
@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .footer-col {
        text-align: center !important;
    }
    
    .social-links {
        justify-content: center;
    }
}