:root {
    --primary-color: #192A56;
    --secondary-color: #273c75;
    --accent-color: #3498DB;
    --text-color: #333;
    --light-gray: #f4f4f4;
    --white: #ffffff;
    --error-color: #e74c3c;
    --success-color: #2ecc71;
}

body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Nawigacja --- */
.navbar {
    background: var(--white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.navbar .nav-links {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
}

.navbar .nav-links li {
    margin-left: 20px;
}

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

.navbar .nav-links a:hover {
    color: var(--accent-color);
}

/* --- Hero Section --- */
.hero {
    background: linear-gradient(rgba(25, 42, 86, 0.8), rgba(25, 42, 86, 0.8)), url('background.png') center center/cover no-repeat;
    color: var(--white);
    height: 80vh;
    display: flex;
    align-items: center;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2rem auto;
}

.cta-button {
    background: var(--accent-color);
    color: var(--white);
    padding: 15px 30px;
    text-decoration: none;
    font-weight: 600;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background: #2980b9;
}

/* --- Sekcje --- */
section {
    padding: 60px 0;
}

section h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.5rem;
    color: var(--primary-color);
}

/* --- Features --- */
.features {
    background: var(--light-gray);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.feature-card .icon {
    font-size: 3rem;
    margin-bottom: 15px;
    color: var(--accent-color);
}

.feature-card h3 {
    margin-bottom: 10px;
    color: var(--secondary-color);
}

/* --- About --- */
.about {
    background: var(--white);
    text-align: center;
}

.about p {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* --- Kontakt --- */
.contact {
    background: var(--light-gray);
}

.contact p {
    text-align: center;
    margin-bottom: 30px;
}

#contactForm {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-family: 'Poppins', sans-serif;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.submit-button {
    display: block;
    width: 100%;
    padding: 15px;
    background: var(--accent-color);
    color: var(--white);
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.submit-button:hover {
    background: #2980b9;
}

.error-message {
    color: var(--error-color);
    font-size: 0.8rem;
    height: 15px;
    display: block;
}

#form-status {
    text-align: center;
    margin-top: 20px;
    font-weight: 600;
}
.success { color: var(--success-color); }
.error { color: var(--error-color); }

/* --- Footer --- */
footer {
    background: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 20px 0;
}

/* --- Responsywność --- */
@media(max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .navbar .container { flex-direction: column; }
    .navbar .nav-links { margin-top: 10px; }
    .navbar .nav-links li { margin: 0 10px; }
}

/* Prosty styl dla przełącznika języków */
.language-switcher {
    position: relative;
}
.language-switcher ul {
    display: none;
    position: absolute;
    background-color: #fff;
    list-style: none;
    padding: 10px 0;
    margin: 0;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    top: 100%;
    right: 0;
}
.language-switcher:hover ul {
    display: block;
}
.language-switcher ul li a {
    padding: 5px 15px;
    display: block;
    color: #333;
}
.language-switcher ul li a:hover {
    background-color: #f4f4f4;
}