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

body {
    font-family: 'Montserrat', sans-serif;
    background-color: #212529;
    color: white;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    padding: 20px 0;
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(33, 37, 41, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
}

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

.logo {
    font-size: 24px;
    font-weight: 700;
    color: #007bff;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 400;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #007bff;
}

/* Hero Section */
.hero {
    padding: 150px 0 100px;
    text-align: center;
    /* Vylepšené animované pozadí */
    background: linear-gradient(135deg, #212529, #343a40, #212529);
    background-size: 200% 200%;
    animation: gradientAnimation 10s ease infinite;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff 0%, #007bff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: #adb5bd;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn-primary {
    background-color: #007bff;
    color: white;
    padding: 15px 40px;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 123, 255, 0.3);
}

/* Section Styling */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    color: #007bff;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.service-card {
    text-align: center;
    padding: 40px 20px;
    background-color: #343a40;
    border-radius: 15px;
    transition: transform 0.3s ease;
}

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

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background-color: #007bff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    transition: all 0.3s ease;
}

/* Oživení ikonky služby při najetí myší */
.service-card:hover .service-icon {
    background-color: white;
    color: #007bff;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #007bff;
}

/* Portfolio */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.portfolio-item {
    background-color: #343a40;
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.portfolio-item:hover {
    transform: scale(1.05);
    /* Přidán box-shadow pro vystoupení prvku */
    box-shadow: 0 15px 30px rgba(0, 123, 255, 0.2);
}

.portfolio-image {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
}

.portfolio-content {
    padding: 25px;
}

.portfolio-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #007bff;
}

/* About */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
}

/* Pricing */
.pricing-card {
    max-width: 500px;
    margin: 0 auto;
    background-color: #343a40;
    border-radius: 20px;
    padding: 50px 40px;
    text-align: center;
    border: 3px solid #007bff;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    color: #007bff;
    margin-bottom: 10px;
}

.price-subtitle {
    color: #adb5bd;
    margin-bottom: 30px;
}

.features-list {
    list-style: none;
    margin-bottom: 40px;
}

.features-list li {
    padding: 10px 0;
    border-bottom: 1px solid #495057;
}

.features-list li:last-child {
    border-bottom: none;
}

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

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #007bff;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background-color: #343a40;
    border: 2px solid #495057;
    border-radius: 10px;
    color: white;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007bff;
}

.form-group textarea {
    height: 120px;
    resize: vertical;
}

/* Footer */
footer {
    background-color: #1a1e21;
    padding: 40px 0;
    text-align: center;
    color: #adb5bd;
}

/* Animace pro gradient */
@keyframes gradientAnimation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .nav-links {
        display: none;
    }

    .services-grid,
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 2rem;
    }
}