:root {
    --primary-color: #004d99; /* Daha koyu mavi */
    --secondary-color: #007acc; /* Açık mavi vurgu */
    --text-dark: #2c3e50; /* Koyu gri metin */
    --text-light: #ecf0f1; /* Açık gri metin */
    --bg-light: #f4f7f9; /* Açık arka plan */
    --bg-white: #ffffff;
    --shadow-light: rgba(0,0,0,0.08);
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--bg-light);
    color: var(--text-dark);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1rem;
}

.main-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-light);
    text-align: center;
    padding: 6rem 0;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-text {
    text-align: center;
    animation: fadeIn 1.5s ease-out;
}

.hero-logo {
    max-width: 250px;
    height: auto;
    margin-bottom: 2rem;
    animation: fadeIn 2s ease-out;
}

.hero-title {
    font-family: 'Poppins', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -1px;
    animation: slideInFromTop 1s ease-out;
}

.hero-subtitle {
    font-size: 1.2rem;
    font-weight: 400;
    margin-top: 0.5rem;
    opacity: 0.8;
    animation: fadeIn 2.5s ease-out;
}

.header-buttons {
    margin-top: 2.5rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.cta-button {
    padding: 0.8rem 2rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: background-color 0.3s, transform 0.3s;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.cta-button.primary {
    background-color: var(--bg-white);
    color: var(--primary-color);
}

.cta-button.primary:hover {
    background-color: #e2e2e2;
    transform: translateY(-3px);
}

.cta-button.secondary {
    background-color: transparent;
    color: var(--text-light);
    border: 2px solid var(--text-light);
}

.cta-button.secondary:hover {
    background-color: var(--text-light);
    color: var(--primary-color);
    transform: translateY(-3px);
}

main {
    padding: 4rem 0;
}

.section-title {
    font-family: 'Poppins', sans-serif;
    font-size: 2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.section-description {
    font-size: 1.1rem;
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
    color: #555;
}

.about-section {
    background-color: var(--bg-white);
    padding: 4rem 0;
}

.features-section {
    background-color: var(--bg-light);
    padding: 4rem 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px var(--shadow-light);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-title {
    font-family: 'Poppins', sans-serif;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-dark);
}

/* Yorumlar ve Haberler */
.testimonials-section, .news-section {
    padding: 4rem 0;
}

.testimonial-grid, .news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card, .news-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px var(--shadow-light);
    text-align: center;
}

.testimonial-text {
    font-style: italic;
    color: #555;
}

.testimonial-author {
    font-weight: bold;
    margin-top: 1rem;
}

.news-title {
    font-family: 'Poppins', sans-serif;
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-top: 0;
}

.news-date {
    font-size: 0.9rem;
    color: #888;
}

.contact-section {
    text-align: center;
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 5rem 0;
}

.contact-section .section-title {
    color: var(--text-light);
}

.contact-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--text-light);
    opacity: 0.9;
}

.contact-button {
    padding: 1rem 2.5rem;
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border-radius: 50px;
}

.contact-button i {
    font-size: 1.5rem;
}

.whatsapp {
    background-color: #25D366;
    color: white;
}

.whatsapp:hover {
    background-color: #128C7E;
    transform: translateY(-3px);
}

.main-footer {
    background-color: #1a1a1a;
    color: #999;
    text-align: center;
    padding: 1.5rem 0;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInFromTop {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    .header-buttons {
        flex-direction: column;
    }
    .cta-button {
        width: 100%;
        margin-bottom: 1rem;
    }
}