/* Alapok és letisztult, enyhén 3D lebegő hatás */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background-color: #f4f7f6;
    font-family: 'Montserrat', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: #333333;
}

.karty-belso {
    background: #ffffff;
    padding: 3.5rem 3rem;
    border-radius: 12px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    text-align: center;
    width: 100%;
    max-width: 420px;
    
    /* Belépő animáció */
    opacity: 0;
    transform: translateY(20px);
    animation: kartyaErkezes 0.6s ease-out forwards;
}

@keyframes kartyaErkezes {
    to { opacity: 1; transform: translateY(0); }
}

h1 {
    font-weight: 900;
    font-size: 2.8rem;
    letter-spacing: 2px;
    color: #10b981;
    margin-bottom: 0.2rem;
}

h3 {
    font-weight: 600;
    font-size: 1.1rem;
    color: #555555;
    margin-bottom: 2rem;
}

.hiba-doboz {
    background-color: #fee2e2;
    color: #b91c1c;
    padding: 0.8rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-weight: 600;
    font-size: 0.9rem;
}

/* Űrlap elemek modern formázása */
.urlap-csoport {
    margin-bottom: 1.5rem;
    text-align: left;
}

.urlap-csoport label {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #777777;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.urlap-csoport input {
    width: 100%;
    padding: 0.9rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background-color: #fcfcfc;
}

.urlap-csoport input:focus {
    outline: none;
    border-color: #10b981;
    background-color: #ffffff;
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
}

.belepes-gomb {
    width: 100%;
    background-color: #10b981;
    color: #ffffff;
    border: none;
    padding: 1rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.1s ease;
    margin-top: 0.5rem;
}

.belepes-gomb:hover {
    background-color: #0d9668;
}

.belepes-gomb:active {
    transform: scale(0.98);
}