/* Genel Stiller */
:root {
    --primary-color: #1a365d; /* Dark Blue */
    --secondary-color: #2a5c8e; /* Medium Blue */
    --accent-color: #0066cc; /* Professional Blue */
    --highlight-color: #ffd700; /* Gold accent */
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --white: #ffffff;
    --gray: #6c757d;
    --light-gray: #e9ecef;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
}

/* Header Styles */
.navbar {
    background-color: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.98) !important;
    padding: 0.5rem 0;
}

.navbar-brand img {
    max-height: 50px;
}

.nav-link {
    font-weight: 500;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

/* Hero Section */
.hero-section {
    padding: 150px 0 100px;
    background: linear-gradient(135deg, var(--white) 0%, #f0f4f8 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--light-gray);
}

.hero-section h1 {
    color: var(--primary-color);
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero-section h2 {
    color: var(--secondary-color);
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.btn-primary {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    padding: 12px 30px;
    font-size: 1.1rem;
    font-weight: 500;
    border-radius: 50px;
    transition: all 0.3s ease;
    color: white;
}

.btn-primary:hover {
    background-color: #0052a3;
    border-color: #0052a3;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 102, 204, 0.3);
}

.btn-success {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    padding: 12px 30px;
    font-size: 1.1rem;
    font-weight: 500;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.btn-success:hover {
    background-color: #0f233d;
    border-color: #0f233d;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(26, 54, 93, 0.3);
}

/* Features Section */
.features-section {
    background-color: white;
}

.features-section h2 {
    color: var(--primary-color);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
}

.feature-card {
    background: white;
    border: 1px solid var(--light-gray);
    transition: all 0.3s ease;
    height: 100%;
    border-top: 3px solid var(--accent-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 33, 71, 0.15) !important;
}

.feature-icon {
    color: var(--primary-color);
}

.feature-card h4 {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Specifications Section */
.specifications-section {
    background-color: var(--light-color);
    padding: 5rem 0;
}

.specifications-section h2 {
    color: var(--primary-color);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

.specifications-section h2:after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
}

.table {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--light-gray);
}

.table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    padding: 1.2rem;
    border: none;
}

.table td {
    padding: 1.2rem;
    vertical-align: middle;
    border-top: 1px solid var(--light-gray);
}

/* Call to Action Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
    padding: 5rem 0;
}

.cta-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.cta-section .lead {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Footer */
footer {
    background-color: #0c1e35;
    padding-top: 3rem;
    padding-bottom: 2rem;
}

footer h5 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

footer ul li {
    margin-bottom: 0.5rem;
}

.social-links a {
    transition: transform 0.3s ease;
}

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

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    width: 65px;
    height: 65px;
    bottom: 40px;
    right: 40px;
    background: linear-gradient(135deg, var(--accent-color) 0%, #25d366 100%);
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 65px;
    font-size: 28px;
    z-index: 1000;
    box-shadow: 0 8px 25px rgba(0, 102, 204, 0.4);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid white;
}

.whatsapp-float:hover {
    transform: scale(1.15) rotate(5deg);
    box-shadow: 0 12px 30px rgba(0, 102, 204, 0.6);
    text-decoration: none;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .hero-section {
        padding: 120px 0 60px;
        text-align: center;
    }
    
    .hero-section h1 {
        font-size: 2.5rem;
    }
    
    .hero-section h2 {
        font-size: 1.5rem;
    }
    
    .features-section h2,
    .specifications-section h2,
    .cta-section h2 {
        font-size: 2rem;
    }
    
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
        line-height: 50px;
        font-size: 20px;
    }
    
    .btn-lg {
        padding: 10px 20px;
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .hero-section {
        padding: 100px 0 40px;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .hero-section h2 {
        font-size: 1.3rem;
    }
    
    .navbar-brand img {
        max-height: 40px;
    }
    
    .whatsapp-float {
        width: 45px;
        height: 45px;
        bottom: 15px;
        right: 15px;
        line-height: 45px;
        font-size: 18px;
    }
}

/* Animation Effects */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card {
    animation: fadeInUp 0.6s ease forwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }

/* Scroll Effects */
.section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}