:root {
    /* Fő Háttér (Körkörös színátmenet) */
    --bg-gradient: radial-gradient(circle,rgba(62, 152, 247, 1) 0%, rgba(0, 128, 128, 1) 75%);
    
    /* Világos téma a kártyákhoz */
    --card-bg: #ffffff;
    --text-dark: #2d3748;
    --text-gray: #718096;
    
    /* Kategória Fő Színek */
    --cat-it-alap: #f97316; 
    --cat-halozat: #eab308;
    --cat-szerver: #ef4444;
    --cat-szoftver: #ec4899;
    --cat-casual: #a855f7;
    --cat-gyakorlas: #84cc16;

    /* Hover Pasztell Színek */
    --hover-it-alap: #fff7ed;
    --hover-halozat: #fefce8;
    --hover-szerver: #fef2f2;
    --hover-szoftver: #fdf2f8;
}

/* --- ALAPBEÁLLÍTÁSOK --- */
html, body {
    overflow-x: hidden;
    width: 100%;
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: #ffffff;
    scroll-behavior: smooth;
}
section[id] {
            scroll-margin-top: 100px;
        }
*, *:before, *:after {
    box-sizing: border-box;
}

/* --- NAVIGÁCIÓ (Üveg hatás) --- */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(127, 127, 127, 0.7);
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
    padding: 15px 0;
    z-index: 1000;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    display: flex;
    justify-content: center;
}

.nav-links {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
    padding: 0 15px;
}

.nav-btn {
    color: #ffffff;
    text-decoration: none;
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-btn:hover {
    background-color: #ffffff;
    color: rgba(49, 14, 84, 1);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

/* --- FEJLÉC & SZEKCIÓK --- */
.container {
    width: 100%;
    max-width: 1300px;
    margin: 0 auto;
    padding: 50px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

header {
    text-align: center;
    margin-bottom: 50px;
    margin-top: 50px;
    width: 100%;
    max-width: 800px;
}

h1 {
    color: #ffffff;
    margin: 0 0 15px 0;
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: 2px;
    text-shadow: 0 4px 15px rgba(0,0,0,0.4);
}

header p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.2rem;
    margin: 0;
    font-weight: 500;
}

.section-title {
    color: #ffffff;
    font-size: 1.8rem;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 15px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.section-title .material-icons {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px;
    border-radius: 50%;
    font-size: 28px;
}

/* --- TANANYAG KÁRTYÁK --- */
.tananyag-container { width: 100%; margin-bottom: 70px; }
.flat-card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 25px; width: 100%; }

.flat-card {
    background-color: var(--card-bg);
    border-radius: 20px;
    padding: 25px;
    text-decoration: none;
    color: var(--text-dark);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    align-items: center;
    gap: 20px;
    position: relative;
    overflow: hidden;
}

.flat-card:hover { transform: translateY(-8px); box-shadow: 0 20px 40px rgba(0,0,0,0.25); }
.flat-card .material-icons { font-size: 48px; color: var(--cat-it-alap); background: rgba(14, 165, 233, 0.1); padding: 18px; border-radius: 16px; transition: all 0.3s ease; }
.flat-card:hover .material-icons { background: var(--cat-it-alap); color: white; transform: scale(1.1) rotate(5deg); }
.flat-card-content h3 { margin: 0 0 10px 0; font-size: 1.3rem; font-weight: 700; }
.flat-card-content p { color: var(--text-gray); margin: 0; font-size: 0.95rem; line-height: 1.5; }
/* Eszközök rács elrendezése */
.tools-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 25px; width: 100%; }

/* Kompakt eszköz kártya stílusa */
.tool-card {
    display: flex !important;
    align-items: center;
    background: var(--card-bg);
    border-radius: 12px;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--text-dark);
    border: 1px solid rgba(255,255,255,0.05);
    transition: transform 0.2s, background 0.2s;
    min-height: 0 !important; 
    height: 80px;
}

.tool-card:hover {
    background: var(--card-hover);
    transform: translateY(-2px);
}

.tool-card .material-icons {
    font-size: 2rem;
    color: var(--cat-it-alap);
    margin-right: 15px;
}

.tool-card .tool-info h3 {
    margin: 0;
    font-size: 1rem;
    color: var(--text-dark);
}

.tool-card .tool-info p {
    margin: 2px 0 0 0;
    font-size: 0.8rem;
    color: var(--text-gray);
    opacity: 0.8;
}
/* --- SZŰRŐ (Üveg hatás) --- */
.games-container { width: 100%; margin-bottom: 40px; }
.filter-bar {
    display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 40px; justify-content: center;
    background: rgba(255, 255, 255, 0.1); backdrop-filter: blur(10px); padding: 20px;
    border-radius: 20px; border: 1px solid rgba(255, 255, 255, 0.2); box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.filter-btn {
    background-color: rgba(255, 255, 255, 0.8); color: var(--text-dark); border: none; padding: 10px 20px;
    border-radius: 30px; cursor: pointer; font-size: 0.95rem; font-weight: 600; transition: all 0.3s ease;
    display: flex; align-items: center; gap: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.filter-btn:hover { transform: translateY(-2px); background-color: #ffffff; box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
.filter-btn.active { background-color: rgba(49, 14, 84, 1); color: #ffffff; }

/* --- DINAMIKUS JÁTÉK KÁRTYÁK --- */
.game-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 30px; width: 100%; }

.game-card {
    background-color: var(--card-bg); border-radius: 20px; text-decoration: none; color: var(--text-dark);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1); transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex; flex-direction: column; position: relative; overflow: hidden; height: 100%;
    border-top: 6px solid #ccc; 
}

.game-card.hidden { display: none; }

.game-card:hover { transform: translateY(-10px); box-shadow: 0 20px 40px rgba(0,0,0,0.25); background-color: var(--hover-color); }

.game-card[data-category="it-alap"] { border-top-color: var(--cat-it-alap); --hover-color: var(--hover-it-alap); }
.game-card[data-category="halozat"] { border-top-color: var(--cat-halozat); --hover-color: var(--hover-halozat); }
.game-card[data-category="szerver"] { border-top-color: var(--cat-szerver); --hover-color: var(--hover-szerver); }
.game-card[data-category="szoftver"] { border-top-color: var(--cat-szoftver); --hover-color: var(--hover-szoftver); }

.card-content { padding: 25px; display: flex; flex-direction: column; flex-grow: 1; z-index: 2; }
.card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 20px; }
.main-icon { font-size: 50px; transition: transform 0.3s ease; }

.game-card[data-category="it-alap"] .main-icon { color: var(--cat-it-alap); }
.game-card[data-category="halozat"] .main-icon { color: var(--cat-halozat); }
.game-card[data-category="szerver"] .main-icon { color: var(--cat-szerver); }
.game-card[data-category="szoftver"] .main-icon { color: var(--cat-szoftver); }

.game-card:hover .main-icon { transform: scale(1.15) rotate(-5deg); }

.device-badge {
    background-color: #f1f5f9; color: #000; border-radius: 50%; width: 46px; height: 46px;
    display: flex; align-items: center; justify-content: center; font-size: 1.6rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.08); flex-shrink: 0; border: 2px solid #ffffff; transition: transform 0.3s ease;
}
.rotate-landscape {
    display: inline-block;
    transform: rotate(-90deg);
}
.game-card:hover .device-badge { transform: scale(1.1); background-color: #ffffff; }

.game-card h3 { margin: 0 0 12px 0; font-size: 1.35rem; font-weight: 800; line-height: 1.3; }
.game-card p { color: var(--text-gray); font-size: 0.95rem; margin: 0 0 25px 0; line-height: 1.6; flex-grow: 1; }

.card-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: auto; }
.tag {
    font-size: 0.75rem; padding: 6px 12px; border-radius: 20px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.5px; display: flex; align-items: center; gap: 4px;
}
.tag .material-icons { font-size: 14px; }

.tag.tag-cat-it-alap { background: var(--cat-it-alap); color: var(--hover-it-alap); }
.tag.tag-cat-halozat { background: var(--cat-halozat); color: var(--hover-halozat); }
.tag.tag-cat-szerver { background: var(--cat-szerver); color: var(--hover-szerver); }
.tag.tag-cat-szoftver { background: var(--cat-szoftver); color: var(--hover-szoftver); }
.tag.tag-casual { background: var(--cat-casual); color: var(--hover-halozat); }
.tag.tag-gyakorlas { background: var(--cat-gyakorlas); color: var(--hover-halozat); }

footer { margin-top: auto; color: rgba(255, 255, 255, 0.6); font-size: 0.9rem; text-align: center; padding: 30px; width: 100%; border-top: 1px solid rgba(255,255,255,0.1); }

@media (max-width: 600px) {
    h1 { font-size: 2.5rem; }
    .flat-card { flex-direction: column; text-align: center; }
    .game-grid { grid-template-columns: 1fr; }
}