/* Reset i ogólne ustawienia */
body {
    margin: 0;
    font-family: "Georgia", "Times New Roman", serif;
    background: #f8f7f4;
    color: #1e2b35;
    line-height: 1.6;
}

/* Nagłówek i nawigacja */
.header {
    background-color: #1e2b35;
    padding: 15px 0;
    margin-bottom: 30px;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 15px;
}

.header .brand {
    color: white;
    font-weight: bold;
    font-size: 1.3rem;
}

.nav a {
    color: white;
    text-decoration: none;
    margin-left: 20px;
    font-size: 1rem;
}

.nav a.active {
    font-weight: bold;
    text-decoration: underline;
}

/* Główna zawartość */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Lista klientów */
.client-card {
    background: white;
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.client-card h3 {
    margin: 0 0 5px 0;
    font-size: 1.2rem;
}

/* Certyfikat – nowy wygląd */
.certificate {
    background: #fdfaf4;
    border: 8px solid #1e2b35;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    max-width: 700px;
    margin: 30px auto;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.certificate h1 {
    font-size: 2rem;
    color: #b8860b;
    margin-bottom: 10px;
    font-weight: bold;
    text-transform: uppercase;
}

.certificate h2 {
    font-size: 1.5rem;
    margin: 10px 0;
    font-weight: bold;
}

.certificate p {
    font-size: 1rem;
    margin: 5px 0;
}

.certificate .cert-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin-top: 20px;
    font-size: 0.95rem;
}

.certificate .cert-details div {
    padding: 5px;
}

.certificate .seal {
    margin-top: 25px;
}

.certificate .seal img {
    max-width: 120px;
    opacity: 0.9;
}

/* Stopka */
footer {
    text-align: center;
    padding: 20px;
    font-size: 0.85rem;
    color: #555;
}