/* =======================
   Globalne style
   ======================= */
:root {
    --bg: #ffffff;
    --text: #222222;
    --accent: #0066cc;
    --accent-hover: #004c99;
    --border: #e6e6e6;
    --radius: 14px;
    --font-main: 'Inter', 'Roboto', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* =======================
   Nagłówek
   ======================= */
header {
    text-align: center;
    padding: 60px 20px 40px;
    background-color: var(--bg);
    border-bottom: 1px solid var(--border);
}

header h1 {
    font-size: 3rem;
    letter-spacing: 1px;
    color: var(--accent);
}

.subtitle {
    color: #555;
    font-size: 1.2rem;
    margin-top: 10px;
}

/* =======================
   Nawigacja
   ======================= */
nav {
    background-color: var(--accent);
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

nav li {
    margin: 0.5rem;
}

nav a {
    text-decoration: none;
    color: white;
    padding: 10px 20px;
    border-radius: var(--radius);
    transition: background-color 0.3s ease;
    font-weight: 500;
}

nav a:hover {
    background-color: var(--accent-hover);
}

/* =======================
   Sekcja hero
   ======================= */
.hero {
    text-align: center;
    padding: 80px 20px;
    max-width: 800px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--text);
}

.hero p {
    color: #666;
}

/* =======================
   Karty kategorii
   ======================= */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 40px auto;
    padding: 0 20px;
}

.card {
    display: block;
    background-color: #fafafa;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    padding: 40px 25px;
    text-decoration: none;
    color: var(--text);
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    transition: transform 0.2s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.08);
    border-color: var(--accent);
}

.card h3 {
    margin-bottom: 10px;
    color: var(--accent);
    font-size: 1.4rem;
}

.card p {
    color: #555;
    font-size: 0.95rem;
}

/* =======================
   Stopka
   ======================= */
footer {
    margin-top: auto;
    text-align: center;
    padding: 20px;
    background-color: #f7f7f7;
    border-top: 1px solid var(--border);
    color: #666;
    font-size: 0.9rem;
}

/* =======================
   Responsywność
   ======================= */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .hero {
        padding: 60px 15px;
    }

    .card {
        padding: 30px 20px;
    }
}
/* =======================
   Sekcje treści (podstrony)
   ======================= */
.content {
    max-width: 1000px;
    margin: 60px auto;
    padding: 0 20px;
    text-align: center;
}

.content h2 {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 15px;
}

.content p {
    color: #555;
    margin-bottom: 40px;
}

/* Przyciski sekcji */
.buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.btn {
    display: inline-block;
    text-decoration: none;
    background-color: var(--accent);
    color: white;
    padding: 18px 40px;
    border-radius: var(--radius);
    font-size: 1.1rem;
    font-weight: 500;
    transition: background-color 0.3s, transform 0.2s;
}

.btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

@media (max-width: 600px) {
    .btn {
        width: 90%;
        font-size: 1rem;
        padding: 14px 0;
    }
}
/* =======================
   Ikona domku w menu (dopasowana wielkość)
   ======================= */
.nav-icon {
    width: 24px;
    height: 24px;
    vertical-align: middle;
    filter: brightness(0) invert(1); /* biała na tle menu */
    transition: transform 0.2s ease, opacity 0.2s ease;
    margin-top: -2px; /* lekkie wyrównanie do tekstu */
}

nav a:hover .nav-icon {
    transform: scale(1.1);
    opacity: 0.85;
}

/* Drobne dopasowanie odstępu */
nav ul li:first-child {
    margin-right: 8px;
}

/* Mniejszy rozmiar na urządzeniach mobilnych */
@media (max-width: 600px) {
    .nav-icon {
        width: 20px;
        height: 20px;
        margin-top: -1px;
    }
}