body {
    font-family: 'Kanit', 'Noto Sans TC', 'Noto Sans SC', sans-serif;
    background-color: #FDF8F0;
    color: #3C2A21;
    padding-bottom: 100px; /* Add padding to prevent content being hidden by sticky footer */
}
.accent-bg { background-color: #E8A038; }
.accent-text { color: #E8A038; }
.secondary-bg { background-color: #5E454B; }
.secondary-text { color: #5E454B; }
.card {
    background-color: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(232, 160, 56, 0.2);
    transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}
.solution-card {
    background: white;
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
    border: 1px solid #e5e7eb;
    cursor: pointer;
}
.solution-card:hover {
     transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}
.chart-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    height: 300px;
    max-height: 350px;
}
.lang-btn {
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    transition: all 0.2s;
    font-size: 0.875rem;
    cursor: pointer;
}
.lang-btn.active {
    background-color: #3C2A21;
    color: #FDF8F0;
    font-weight: bold;
}
.lang-btn:not(.active) {
    background-color: rgba(255,255,255,0.5);
    color: #3C2A21;
}
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(17, 24, 39, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}
.modal-content {
    background: white;
    padding: 2.5rem;
    border-radius: 1rem;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    position: relative;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}
.modal-overlay.active .modal-content {
    transform: scale(1);
}
.modal-close {
    position: absolute;
    top: 1rem; right: 1rem;
    background: transparent;
    border: none;
    font-size: 2rem;
    line-height: 1;
    color: #6b7280;
    cursor: pointer;
}
@media (min-width: 768px) {
    .chart-container {
        height: 350px;
    }
}