/* --- 1. RESET & PODSTAWY --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}

.container, .section-padding {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

/* --- 2. NAGŁÓWEK --- */
#main-header {
    background-color: #1a4f8a;
    color: white;
    padding: 15px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav ul { list-style: none; display: flex; }
nav ul li a { color: white !important; text-decoration: none; padding: 10px 15px; }

/* --- 3. HERO --- */
#hero {
    background: linear-gradient(rgba(26, 79, 138, 0.8), rgba(44, 62, 80, 0.8)), url('hero-bg.jpg') center/cover;
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
}

/* --- 4. PRZYCISKI --- */
.btn {
    display: inline-block;
    padding: 15px 30px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 5px;
    background-color: #e67e22;
    color: white;
}

/* --- 5. O NAS (Poprawione) --- */
#about { background-color: #f0f2f5; }
.about-text { max-width: 900px; margin: 0 auto; padding: 20px; }
.about-features { list-style: none; padding: 0; margin-top: 15px; }
.about-features li {
    margin-bottom: 10px;
    padding-left: 30px;
    position: relative;
}
.about-features li::before {
    content: '✔';
    position: absolute;
    left: 0;
    color: #e67e22;
    font-weight: bold;
}

/* --- 6. LIGHTBOX (POWIĘKSZANIE) --- */
.lightbox-target {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    cursor: pointer;
}

.lightbox-target img {
    max-width: 90%;
    max-height: 90%;
    border: 3px solid white;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

/* --- 7. RESPONSYWNOŚĆ --- */
@media (max-width: 768px) {
    #main-header { flex-direction: column; }
    nav ul { margin-top: 10px; }
}