.main-layout {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    gap: 30px;
    align-items: flex-start;
    justify-content: center;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 20px 0;
}

.cards-grid.secondary {
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.feature-card {
    background-color: var(--bg-color);
    border: 2px solid var(--sub-color);
    border-radius: 8px;
    padding: 30px 20px;
    text-align: center;
    transition: border-color 0.3s ease;
    text-decoration: none;
    display: block;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    border-color: var(--main-color);
}

.card-icon {
    font-size: 3em;
    margin-bottom: 15px;
    color: var(--main-color);
}

.feature-card h3 {
    color: var(--main-color);
    font-size: 1.4em;
    margin: 10px 0;
}

.feature-card p {
    color: var(--text-color);
    font-size: 0.95em;
    line-height: 1.5;
}

.secondary-card {
    background-color: var(--bg-color);
    border: 1px solid var(--sub-color);
    border-radius: 6px;
    padding: 20px 15px;
    text-decoration: none;
    display: block;
    transition: border-color 0.2s ease;
}

.secondary-card:hover {
    border-color: var(--main-alt-color);
}

.secondary-card h4 {
    color: var(--main-alt-color);
    font-size: 1.1em;
    margin: 0 0 8px 0;
}

.secondary-card p {
    color: var(--text-color);
    font-size: 0.9em;
    margin: 0;
}

.account-card {
    background-color: var(--sub-alt-color);
    border: 2px solid var(--sub-color);
    border-radius: 5px;
    padding: 30px;
    min-width: 280px;
    max-width: 320px;
    position: sticky;
    top: 20px;
    flex-shrink: 0;
    box-sizing: border-box;
}

.account-card h3 {
    color: var(--main-alt-color);
    margin: 0 0 20px 0;
    font-size: 1.3em;
    text-align: center;
}

.account-welcome, .account-login {
    text-align: center;
}

.account-welcome p, .account-login p {
    margin: 5px 0;
}

.account-welcome i, .account-login i {
    color: var(--main-color);
}

.login-button {
    display: inline-block;
    background-color: var(--main-alt-color);
    color: black;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    margin-top: 15px;
    font-weight: bold;
    transition: background-color 0.2s ease;
}

.login-button:hover {
    background-color: var(--main-color);
}

@media (max-width: 1100px) {
    .main-layout {
        flex-direction: column;
        justify-content: flex-start;
    }

    .account-card {
        position: relative;
        top: 0;
        margin: 0 auto;
        max-width: 100%;
        min-width: auto;
        width: 100%;
        box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
        border-radius: 5px;
        order: -1;
    }
}

@media (max-width: 768px) {
    .cards-grid {
        grid-template-columns: 1fr;
    }

    .cards-grid.secondary {
        grid-template-columns: 1fr;
    }

    .feature-card {
        padding: 25px 15px;
    }

    .card-icon {
        font-size: 2.5em;
    }
}