/* Genel Stil */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Header */
header {
    background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #fff;
}

.logo span {
    color: #2ecc71;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #2ecc71;
}

.btn {
    display: inline-block;
    background-color: #2ecc71;
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #27ae60;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* MOBİL MENÜ BUTONU (Masaüstünde gizli) */
.mobile-menu-toggle {
    display: none; 
}


/* Hero Section */
.hero {
    /* Düzeltme: Üst menü sabit olduğu için içeriğin menü altında kalmaması adına padding-top eklendi */
    padding: 10rem 0 5rem;
    background: linear-gradient(rgba(44, 62, 80, 0.8), rgba(44, 62, 80, 0.8)),
      url('https://images.unsplash.com/photo-1543852786-1cf6624b9987?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80') no-repeat center center/cover;
    color: white;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 2rem;
}

/* Features */
.features {
    padding: 5rem 0;
    background-color: white;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.section-title p {
    color: #7f8c8d;
    max-width: 700px;
    margin: 0 auto;
}

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

.feature-card {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3rem;
    color: #3498db;
    margin-bottom: 1rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

/* Pricing */
.pricing {
    padding: 5rem 0;
    background-color: #f8f9fa;
}

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

.pricing-card {
    background-color: white;
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.pricing-card:hover {
    transform: scale(1.03);
}

.price {
    font-size: 2.5rem;
    color: #3498db;
    margin-bottom: 1.5rem;
}

.price span {
    font-size: 1rem;
    color: #7f8c8d;
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-features li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

/* Testimonials */
.testimonials {
    padding: 5rem 0;
    background-color: white;
}

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

.testimonial-card {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1rem;
}

.testimonial-author {
    font-weight: bold;
    color: #2c3e50;
}

/* Contact Form */
.contact {
    padding: 5rem 0;
    background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
    color: white;
}

.contact .section-title h2,
.contact .section-title p {
    color: white;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
}

/* Footer */
footer {
    background-color: #2c3e50;
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    list-style: none;
    margin-bottom: 2rem;
}

.footer-links li {
    margin: 0 1rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
}

.footer-links a:hover {
    color: #2ecc71;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .features-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    /* Mobil için menü açma/kapama ikonu */
    .mobile-menu-toggle {
        display: block;
        cursor: pointer;
        font-size: 2rem;
        color: white;
        margin-right: 1rem;
        background: transparent;
        border: 0;
        line-height: 1;
    }

    /* ===== MOBİL MENÜ DÜZELTME: Açıkken görünür + yerleşim ===== */
    .nav-links.open {
        display: flex;
        position: absolute;
        right: 0;
        /* Düzeltme: Üst menünün yüksekliğine göre ayarlandı */
        top: 100%; 
        flex-direction: column;
        background: rgba(44, 62, 80, 0.98);
        padding: 1rem;
        width: min(90vw, 340px);
        border-radius: 0 0 12px 12px;
        box-shadow: 0 10px 24px rgba(0,0,0,0.2);
        gap: 0.5rem;
    }
    .nav-links.open li {
        margin: 0;
    }
    .nav-links.open a,
    .nav-links.open .btn {
        display: block;
        width: 100%;
        text-align: left;
    }
}

/* Eklenen Mobil Stiller */
@media (max-width: 768px) {
    /* Hero bölümü (Giriş) - Mobil ekranlarda küçültme */
     .hero {
        /* Düzeltme: Mobil için padding ayarı güncellendi */
        padding: 8rem 0 4rem;
    }
    .hero h1 {
        font-size: 2.2rem !important;
    }
    .hero p {
        font-size: 1.1rem !important;
    }
    .hero .btn {
        padding: 0.8rem 1.8rem !important;
        font-size: 1rem !important;
    }

    /* "Bize Güvenenler" bölümü - Logoları alt alta sıralama */
    .trusted-by .container div {
        flex-direction: column;
        gap: 1.5rem;
        align-items: center;
    }

    /* "Hemen Başlayın" butonu - Mobil için boyut ayarı */
    .final-cta .btn {
        padding: 1rem 2rem !important;
        font-size: 1.1rem !important;
    }

    /* Genel mobil tasarım iyileştirmeleri */
    .features-grid, .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}