/* ========= CSS Değişkenleri (Tüm Renkler) ========= */
:root {
    --bg-dark: #111827;
    --bg-card: #1F2937;
    --border-color: #374151;
    --gradient-start: #8B5CF6;
    --gradient-end: #3B82F6;
    --text-main: #E5E7EB;
    --text-secondary: #9CA3AF;
}

/* ========= Genel Stiller ve Resetleme ========= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 30px;
}

.section-title {
    font-size: 38px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
}

/* ========= Buton Stilleri ========= */
.btn {
    font-family: 'Poppins', sans-serif;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: inline-block;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.btn-primary {
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 10px 20px;
}

.btn-large {
    padding: 15px 30px;
    font-size: 18px;
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    border: 2px solid var(--border-color);
    padding: 10px 20px;
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

/* ========= Navigasyon Çubuğu (Navbar) ========= */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 50px;
    border-bottom: 1px solid var(--bg-card);
}

.logo {
    font-weight: 700;
    font-size: 24px;
    color: var(--text-main);
    text-decoration: none;
}

.desktop-nav {
    display: flex;
    gap: 30px;
}

.desktop-nav a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.desktop-nav a:hover {
    color: var(--gradient-end);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn-login {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    padding: 10px 15px;
    transition: color 0.3s ease;
}

.btn-login:hover {
    color: var(--gradient-end);
}

.hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
}

.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--bg-card);
    z-index: 2000;
    transition: right 0.4s ease-in-out;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 80px;
    gap: 25px;
}

.mobile-nav.active {
    right: 0;
}

.mobile-nav a {
    color: var(--text-main);
    text-decoration: none;
    font-size: 22px;
    font-weight: 600;
}

.mobile-nav .close-btn {
    position: absolute;
    top: 20px;
    right: 25px;
    font-size: 40px;
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
}


/* ========= Hero Bölümü ========= */
.hero {
    text-align: center;
    padding: 100px 20px;
}

.hero-title {
    font-size: 52px;
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto 30px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========= Özellikler (Features) Bölümü ========= */
.features {
    padding: 80px 0;
}

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

.feature-card {
    background-color: var(--bg-card);
    padding: 35px;
    border-radius: 8px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.feature-icon svg {
    width: 48px;
    height: 48px;
    color: var(--gradient-end);
    margin-bottom: 20px;
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========= Müşteri Yorumları (Testimonials) Bölümü ========= */
.testimonials {
    padding: 80px 0;
    background-color: var(--bg-card);
}

.testimonial-card {
    background-color: var(--bg-dark);
    padding: 35px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%; /* Slider için eklendi */
}

.testimonial-text {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-main);
    margin-bottom: 25px;
    font-style: italic;
}

.testimonial-text::before {
    content: '“';
    font-size: 24px;
    margin-right: 5px;
    color: var(--gradient-end);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--gradient-end);
    border: 2px solid var(--gradient-start);
}

.author-details {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    color: #FFFFFF;
}

.author-title {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ========= Fiyatlandırma (Pricing) Bölümü ========= */
.pricing {
    padding: 80px 0;
}

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

.pricing-card {
    background-color: var(--bg-card);
    border-radius: 8px;
    padding: 40px;
    text-align: center;
    border: 2px solid var(--border-color);
    transition: transform 0.3s ease, border-color 0.3s ease;
    position: relative;
}

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

.pricing-card.popular {
    transform: scale(1.05);
    border-color: var(--gradient-start);
}

.pricing-card.popular::before {
    content: 'MOST POPULAR';
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
}

.plan-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
}

.plan-price {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
}

.plan-price .price-period {
    font-size: 16px;
    font-weight: 400;
    color: var(--text-secondary);
}

.plan-description {
    color: var(--text-secondary);
    margin-bottom: 30px;
    min-height: 40px;
}

.plan-features {
    list-style-type: none;
    margin-bottom: 40px;
    text-align: left;
}

.plan-features li {
    margin-bottom: 15px;
    color: var(--text-main);
}

/* ========= Sıkça Sorulan Sorular (FAQ) Bölümü ========= */
.faq {
    padding: 80px 0;
    background-color: var(--bg-card);
}

.faq-container {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--bg-dark);
    border-radius: 8px;
    margin-bottom: 15px;
    border: 1px solid var(--border-color);
}

.faq-question {
    padding: 20px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-answer {
    padding: 0 20px 20px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========= Alt Bilgi (Footer) Bölümü ========= */
.footer {
    background-color: var(--bg-dark);
    padding: 60px 0 0;
    border-top: 1px solid var(--bg-card);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-description {
    margin-top: 15px;
    color: var(--text-secondary);
    max-width: 250px;
}

.footer-heading {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #FFFFFF;
}

.footer-col a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

.footer-col a:hover {
    color: var(--gradient-end);
}

.footer-bottom {
    text-align: center;
    padding: 20px;
    border-top: 1px solid var(--bg-card);
    color: var(--text-secondary);
}

/* ========= Genel ve Form Sayfaları ========= */
.page-content {
    padding: 80px 0;
}

.page-title {
    font-size: 42px;
    margin-bottom: 30px;
    text-align: center;
}

.page-content p {
    margin-bottom: 20px;
    line-height: 1.7;
    color: var(--text-secondary);
}

.page-content h2 {
    font-size: 28px;
    margin-top: 40px;
    margin-bottom: 15px;
}

.form-container {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
}

.form-subtitle {
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.signup-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    text-align: left;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    padding: 15px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-main);
    font-size: 16px;
    font-family: 'Poppins', sans-serif;
}

.form-group input:focus {
    outline: none;
    border-color: var(--gradient-start);
}

.signup-form .btn {
    width: 100%;
    margin-top: 10px;
}

.form-footer-text {
    margin-top: 25px;
    color: var(--text-secondary);
}

.form-footer-text a {
    color: var(--gradient-end);
    text-decoration: none;
    font-weight: 600;
}

/* ========= Yardımcı Stiller (Scroll Top Butonu & Slider) ========= */
.scroll-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    width: 50px;
    height: 50px;
    background: var(--gradient-end);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.scroll-top-btn.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    background: var(--gradient-start);
    transform: translateY(-5px);
}

.scroll-top-btn svg {
    width: 24px;
    height: 24px;
}

.swiper-pagination-bullet {
    background-color: var(--border-color);
}
.swiper-pagination-bullet-active {
    background-color: var(--gradient-end);
}


/* ==========================================================================
   MOBIL UYUMLULUK (RESPONSIVE DESIGN)
   ========================================================================== */

/* Tablet (992px ve altı) */
@media (max-width: 992px) {
    .features-grid,
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobil & Tablet (768px ve altı) */
@media (max-width: 768px) {
    .section-title {
        font-size: 32px;
    }
    .container {
        padding: 0 20px;
    }
    .navbar {
        padding: 15px 20px;
    }
    .navbar .desktop-nav, .navbar .desktop-actions {
        display: none;
    }
    .navbar .hamburger {
        display: block;
    }
    .navbar .hamburger svg {
        width: 30px;
        height: 30px;
    }
    .hero {
        padding: 60px 20px;
    }
    .hero-title {
        font-size: 38px;
    }
    .hero-subtitle {
        font-size: 16px;
    }
    .features-grid,
    .pricing-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .testimonials-slider {
        margin-top: 30px;
    }
    .pricing-card.popular {
        transform: scale(1);
    }
    .pricing-grid {
        gap: 40px;
    }
    .footer-grid {
        text-align: center;
    }
    .footer-description {
        margin: 15px auto;
    }
}

/* Küçük Mobil (480px ve altı) */
@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }
    .section-title {
        font-size: 28px;
    }
}