@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800&display=swap');

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --light-gray: #f8f9fa;
    --dark-text: #212529;
    --light-text: #6c757d;
    --section-bg: #ffffff;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'Nunito', sans-serif;
    background-color: #f8f9fa;
    color: var(--dark-text);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    overflow-x: hidden; /* Bu satır çok önemli */
}
*, *:before, *:after {
    box-sizing: border-box;
}

.main-container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    background-color: var(--section-bg);
    padding: 80px 0;
}

/* ANIMASYONLAR */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* === MASAÜSTÜ STİLLERİ (SENİN GÖNDERDİĞİN KOD) === */
.header { background-color: #fff; padding: 15px 0; position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
.navbar { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 26px; font-weight: 800; color: var(--dark-text); text-decoration: none; }
.logo span { color: var(--primary-color); }
.nav-right { display: flex; align-items: center; }
.nav-links a { color: var(--light-text); text-decoration: none; font-weight: 700; margin: 0 15px; transition: color 0.3s ease; }
.nav-links a:hover { color: var(--dark-text); }
.nav-button { display: inline-block; background-color: var(--primary-color); color: #fff; padding: 10px 25px; border-radius: 50px; text-decoration: none; font-weight: 700; transition: all 0.3s ease; margin-left: 15px; border: 2px solid transparent; }
.nav-button-secondary { display: inline-block; background-color: #f1f1f1; color: var(--dark-text); padding: 10px 25px; text-decoration: none; font-weight: 700; transition: all 0.3s ease; margin-left: 20px; border-radius: 50px; }
.section-title { text-align: center; font-size: 36px; font-weight: 800; margin-bottom: 20px; }
.section-subtitle { text-align: center; font-size: 18px; color: var(--light-text); max-width: 600px; margin: 0 auto 60px auto; }
.hero { display: flex; align-items: center; background-color: #fff; }
.hero-content { flex: 1; animation: fadeInUp 0.8s ease-out; }
.hero-content h1 { font-size: 52px; font-weight: 800; line-height: 1.2; margin-bottom: 20px; }
.hero-content p { font-size: 18px; color: var(--light-text); margin-bottom: 40px; max-width: 500px; }
.hero-buttons .btn { text-decoration: none; font-weight: 700; padding: 15px 40px; border-radius: 50px; margin-right: 15px; display: inline-block; border: 2px solid transparent; }
.btn-primary { background-color: var(--primary-color); color: #fff; box-shadow: 0 10px 20px rgba(13, 110, 253, 0.2); }
.btn-secondary { background-color: var(--light-gray); color: var(--dark-text); border: 2px solid #e0e0e0; }
.hero-image { flex: 1; text-align: center; animation: fadeIn 1.2s ease-out; }
.hero-image img { max-width: 100%; height: auto; }
.steps-container { display: flex; justify-content: space-between; text-align: center; flex-wrap: wrap; }
.step { position: relative; width: 22%; }
.step-icon { width: 80px; height: 80px; background-color: #e9ecef; border-radius: 50%; display: inline-flex; justify-content: center; align-items: center; margin-bottom: 20px; font-size: 32px; color: var(--primary-color); }
.payments { display: flex; align-items: center; }
.payments-content, .payments-image { flex: 1; }
.payments-image img { max-width: 80%; }
.payments-content ul { list-style: none; padding: 0; }
.payments-content li::before { content: '✔'; position: absolute; left: 0; color: #28a745; font-weight: bold; }
.stats { background: linear-gradient(45deg, #6a11cb 0%, #2575fc 100%); color: #fff; text-align: center; }
.stats-grid { display: flex; justify-content: space-around; flex-wrap: wrap; margin-top: 50px; }
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.testimonial-card { background-color: #fff; border: 1px solid #eef0f2; padding: 30px; border-radius: 8px; text-align: center; }
.testimonial-avatar { width: 80px; height: 80px; border-radius: 50%; background-color: #0d6efd; margin: 0 auto 15px auto; }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.site-footer { background-color: #212529; color: #aab1b7; padding: 60px 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-column h4 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 20px; }
.footer-column ul { list-style: none; padding: 0; margin: 0; }
.footer-bottom { text-align: center; margin-top: 50px; padding-top: 20px; border-top: 1px solid #3d454c; }
.auth-page-container { display: flex; align-items: center; min-height: 80vh; padding: 40px 0; background-color: #fff; }
.auth-form-section { flex: 1.2; padding-right: 40px; max-width: 450px; margin: 0 auto; }
.auth-illustration-section { flex: 1; text-align: center; }
.form-group input:not(:placeholder-shown) ~ label { top: -20px; font-size: 12px; color: var(--primary-color); }
/* ... Diğer stiller ... */


/* === MOBİL UYUM (SON VE KESİN ÇÖZÜM) === */
@media (max-width: 992px) {
    .nav-links, .auth-illustration-section, .hero-image {
        display: none;
    }
    .hero, .payments, .auth-page-container {
        flex-direction: column;
        text-align: center;
    }
    .hero-content, .auth-form-section {
        padding-right: 0;
    }
    .hero-content h1 {
        font-size: 36px;
    }
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    .hero-buttons .btn {
        width: 90%;
        max-width: 300px;
        margin-right: 0;
    }
    .steps-container, .stats-grid {
        flex-direction: column;
        gap: 40px;
    }
    .step {
        width: 100%;
        margin-bottom: 20px;
    }
    .testimonials-grid, .faq-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .payments-image {
        margin-bottom: 30px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
}