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

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #000000;
    --secondary: #333333;
    --accent: #666666;
    --light: #ffffff;
    --gray: #f5f5f5;
    --border: #e0e0e0;
}

html {
    scroll-behavior: smooth;
}

body {
    line-height: 1.6;
    color: var(--primary);
    background-color: var(--light);
}

/* Header */
header {
    background: var(--light);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

/* Header yapısı */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 5%;
    max-width: 1400px;
    margin: 0 auto;
    height: 100px;
}

.logo {
    display: flex;
    align-items: center;
    height: 100%;
    padding: 0.5rem 0;
}

.logo-img {
    height: 100%;
    max-height: 90px;
    width: auto;
    display: block;
    object-fit: contain;
}

/* Mobil düzenleme */
@media (max-width: 768px) {
    nav {
        height: auto;
        padding: 1rem 5%;
        flex-direction: column;
        gap: 1rem;
    }

    .logo-img {
        max-height: 60px;
    }
    
    nav ul {
        margin-left: 0; /* Mobilde margin'i kaldırıyoruz */
    }
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

nav a {
    text-decoration: none;
    color: var(--primary);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background: var(--primary);
    transition: width 0.3s ease;
}

nav a:hover::after {
    width: 100%;
}

.btn-giris {
    background: var(--primary);
    color: var(--light) !important;
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.btn-giris:hover {
    background: var(--secondary);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    background: var(--primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    color: var(--light);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
    top: -25%;
    left: -25%;
    animation: rotate 20s linear infinite;
}

.hero-content {
    max-width: 900px;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.hero p {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.btn-demo {
    display: inline-block;
    background: var(--light);
    color: var(--primary);
    padding: 1.2rem 2.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255,255,255,0.1);
}

.btn-demo:hover {
    transform: translateY(-3px);
    background: var(--gray);
}

/* Özellikler */
.features {
    padding: 8rem 2rem;
    background: var(--light);
}

.features h2 {
    text-align: center;
    margin-bottom: 4rem;
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.feature-card {
    background: var(--light);
    padding: 3rem 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: all 0.4s ease;
    border: 1px solid var(--border);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.feature-card i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary);
}

.feature-card p {
    color: var(--accent);
    font-size: 1.1rem;
}

/* Fiyatlandırma */
.pricing {
    padding: 8rem 2rem;
    background: var(--gray);
}

.pricing h2 {
    text-align: center;
    margin-bottom: 4rem;
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.pricing-card {
    background: var(--light);
    padding: 3rem 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.pricing-card.featured {
    transform: scale(1.05);
    border: 2px solid var(--primary);
}

.pricing-card.featured::before {
    content: 'En Popüler';
    position: absolute;
    top: 20px;
    right: -35px;
    background: var(--primary);
    color: var(--light);
    padding: 0.5rem 4rem;
    transform: rotate(45deg);
    font-size: 0.9rem;
    font-weight: 500;
}

.pricing-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 600;
    color: var(--primary);
}

.price {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 2rem;
    line-height: 1;
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 2.5rem;
}

.pricing-card li {
    margin-bottom: 1rem;
    color: var(--accent);
    font-size: 1.1rem;
}

.btn-pricing {
    display: inline-block;
    background: var(--primary);
    color: var(--light);
    padding: 1rem 2.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.btn-pricing:hover {
    background: var(--secondary);
    transform: translateY(-3px);
}

/* İletişim */
.contact {
    padding: 8rem 2rem;
    background: var(--light);
}

.contact h2 {
    text-align: center;
    margin-bottom: 4rem;
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
}

.contact-container {
    max-width: 700px;
    margin: 0 auto;
    background: var(--light);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

input, textarea {
    padding: 1.2rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--light);
    color: var(--primary);
}

input:focus, textarea:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 4px rgba(0,0,0,0.1);
}

textarea {
    height: 180px;
    resize: vertical;
}

.btn-submit {
    background: var(--primary);
    color: var(--light);
    padding: 1.2rem;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.btn-submit:hover {
    background: var(--secondary);
    transform: translateY(-3px);
}

/* Footer */
footer {
    background: var(--primary);
    color: var(--light);
    padding: 6rem 2rem 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
}

.footer-section h4 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    color: var(--light);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.8rem;
}

.footer-section a {
    color: var(--gray);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--light);
}

.footer-bottom {
    text-align: center;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: var(--gray);
}

/* Sosyal Medya İkonları */
.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: var(--gray);
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    color: var(--light);
    transform: translateY(-3px);
}

/* Fiyat kartlarındaki check ikonları */
.pricing-card li i {
    color: var(--primary);
    margin-right: 0.5rem;
}

/* İletişim formu ikonları */
.footer-section p i {
    margin-right: 0.5rem;
    color: var(--light);
}

/* Responsive Tasarım */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 1.5rem;
        padding: 1rem;
    }

    nav ul {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

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

    .hero p {
        font-size: 1.1rem;
    }

    .pricing-card.featured {
        transform: none;
    }

    .features h2,
    .pricing h2,
    .contact h2 {
        font-size: 2.2rem;
    }
}

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

.feature-card,
.pricing-card,
.contact-container {
    animation: fadeIn 0.6s ease-out forwards;
}