.main-nav { background: #383636; padding: 10px 0; text-align: center; border-bottom: 1px solid #ddd; }
.main-nav a { margin: 0 15px; text-decoration: none; color: #ddd; font-weight: bold; font-size: 0.9em; }
.main-nav a:hover { color: #ffcc00; }
body {
    background-color: #1a1a1a; /* Ciemne tło strony */
    color: #eeeeee;            /* Jasny tekst domyślny */
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

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

/* Nagłówek podstrony */
.subpage-header {
    background-color: #111;
    padding: 50px 0;
    text-align: center;
    border-bottom: 3px solid #ffcc00;
}

.subpage-header h1 {
    color: #ffcc00;
    margin: 0;
    font-size: 2.2rem;
    text-transform: uppercase;
}

.back-link {
    color: #aaa;
    text-decoration: none;
    font-size: 0.9rem;
    display: inline-block;
    margin-bottom: 15px;
    transition: color 0.3s;
}

.back-link:hover {
    color: #ffcc00;
}

/* Tekst wstępny - biały i wyraźny */
.intro-text {
    padding: 40px 0;
    text-align: center;
    max-width: 850px;
    margin: 0 auto;
}

.intro-text p {
    color: #ffffff; 
    font-size: 1.2rem;
}

/* Siatka kart - ciemne karty z jasnym tekstem */
.pomiary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    padding-bottom: 50px;
}

.pomiary-item {
    background-color: #252525; /* Nieco jaśniejszy odcień czerni dla kart */
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    border: 1px solid #333;
    transition: transform 0.3s, border-color 0.3s;
}

.pomiary-item:hover {
    transform: translateY(-5px);
    border-color: #ffcc00;
}

.pomiary-item .icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 15px;
}

.pomiary-item h3 {
    color: #ffcc00; /* Złote nagłówki w kartach */
    margin-bottom: 15px;
}

.pomiary-item p {
    color: #ccc;    /* Jasnoszary opis w kartach */
    font-size: 0.95rem;
}

/* Sekcja zachęty (Call to action) */
.call-to-action {
    background-color: #222;
    padding: 50px;
    text-align: center;
    border-radius: 15px;
    border: 2px dashed #ffcc00;
    margin-bottom: 60px;
}

.call-to-action h2 {
    color: #fff;
    margin-bottom: 20px;
}

.call-to-action p {
    color: #bbb;
    margin-bottom: 30px;
}

/* Przycisk zadzwoń */
.cta-btn {
    display: inline-block;
    background-color: #ffcc00;
    color: #000;
    padding: 15px 35px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 50px;
    font-size: 1.1rem;
    transition: background 0.3s;
}

.cta-btn:hover {
    background-color: #ffdb4d;
}

/* Stopka */
footer {
    text-align: center;
    padding: 30px;
    border-top: 1px solid #333;
    color: #666;
}