@font-face {
    font-family: 'Trend Slab Four';
    src: url('../fontes/trend-slab-four.otf') format('opentype');
    font-weight: normal;
    font-style: normal;
}

.period-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.period-btn {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem 2rem;
    border: none;
    border-radius: 1rem;
    background: var(--card-bg);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 140px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.period-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.period-btn:hover::before {
    opacity: 0.1;
}

.period-btn.active {
    background-color: transparent !important;
    color: var(--primary) !important;
    border: 2px solid var(--primary) !important;
    transition: background 0.2s, color 0.2s, border 0.2s;
}

.period-text {
    position: relative;
    font-family: 'Trend Slab Four', sans-serif;
    font-weight: normal;
    font-size: 1.2rem;
    z-index: 2;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.period-discount {
    position: relative;
    font-family: 'Trend Slab Four', sans-serif;
    font-size: 1rem;
    margin-top: 0.5rem;
    z-index: 2;
    font-weight: normal;
    opacity: 0.9;
}

.period-btn.active .period-discount {
    color: var(--background-color);
    opacity: 1;
}

.period-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

@media (max-width: 768px) {
    .period-buttons {
        gap: 1rem;
        padding: 0 1rem;
    }
    
    .period-btn {
        min-width: calc(50% - 0.5rem);
        padding: 0.75rem 1rem;
    }

    .period-text {
        font-size: 1.1rem;
    }

    .period-discount {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .period-btn {
        min-width: 100%;
    }
}