* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Times New Roman', serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.container {
    max-width: 800px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    padding: 3rem;
    text-align: center;
    margin: 2rem 0;
}
.menu {
    display: flex;
    flex-wrap: wrap; /* Pozwala na zawijanie menu */
    justify-content: center;
    align-items: stretch;     /* Środkowanie w pionie (oś poprzeczna) */
    gap: 0;
    margin-bottom: 2rem;
}
.menu a {
    display: flex;
    align-items: center;     /* Środkuje tekst w pionie wewnątrz przycisku */
    justify-content: center;  /* Środkuje tekst w poziomie */
    max-width: 200px;
    margin-bottom: 5px;
    text-align: center;      /* Zapewnia ładne łamanie tekstu wieloliniowego */
    background: linear-gradient(45deg, #6c757d, #495057);
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    font-size: 1rem;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(108, 117, 125, 0.3);
}
.menu a:first-child {
    border-right: 1px solid rgba(255,255,255,0.3);
}
.menu a:hover {
    background: linear-gradient(45deg, #495057, #343a40);
}
.menu a.active {
    background: linear-gradient(45deg, #495057, #343a40);
}
h1 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 2.2rem;
    font-weight: bold;
}
.content {
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
    text-align: left;
}
.content p {
    margin-bottom: 1.2rem;
    text-align: justify;
}
.intro {
    text-align: center;
    margin-bottom: 2rem;
}
.highlight {
    color: #2c3e50;
    font-weight: bold;
}
.quote {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 10px;
    margin: 1.5rem 0;
    border-left: 4px solid #6c757d;
    font-style: italic;
}
.download-btn {
    display: inline-block;
    background: linear-gradient(45deg, #6c757d, #495057);
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: bold;
    transition: all 0.3s ease;
    margin: 1.5rem 0;
    box-shadow: 0 5px 15px rgba(108, 117, 125, 0.3);
}
.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(108, 117, 125, 0.4);
}
.clean-table {
    width: 100%;
    border-collapse: collapse; /* Łączy ramki w jedną linię */
    margin: 20px 0;
}

.clean-table th, 
.clean-table td {
    border: 1px solid #000; /* Standardowa czarna ramka */
    padding: 5px 10px;
    text-align: center; /* Wyśrodkowanie treści */
}

.clean-table th {
    font-weight: bold;
}
 .account-info {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 10px;
    margin: 2rem 0;
}
.account-number {
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    font-weight: bold;
    color: #2c3e50;
    background: white;
    padding: 0.5rem;
    border-radius: 5px;
    margin-top: 0.5rem;
}
.download-btn {
    display: inline-block;
    background: linear-gradient(45deg, #6c757d, #495057);
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: bold;
    transition: all 0.3s ease;
    margin: 1.5rem 0;
    box-shadow: 0 5px 15px rgba(108, 117, 125, 0.3);
}