/* Concerts page specific styles */
.accordion {
    width: min(100%, 800px);
    margin-left: auto;
    margin-right: auto;
    box-sizing: border-box;
}

/* ===== Accordion Container Styling ===== */
.accordion-item {
    background-color: var(--color-accordion-bg);
    border: var(--border-width) solid var(--color-accordion-border);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
    color: var(--color-accordion-text);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-all);
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
    width: 100%;
    box-sizing: border-box;
}

.accordion-item:nth-child(1) { animation-delay: 0.1s; }
.accordion-item:nth-child(2) { animation-delay: 0.2s; }
.accordion-item:nth-child(3) { animation-delay: 0.3s; }
.accordion-item:nth-child(4) { animation-delay: 0.4s; }

.accordion-item:hover {
    box-shadow: var(--shadow-md);
}

/* ===== Accordion Header Button ===== */
.accordion-button {
    background-color: var(--color-accordion-bg);
    color: var(--color-accordion-text) !important;
    font-weight: var(--font-weight-semibold);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    box-shadow: none;
    font-size: var(--font-size-lg);
    transition: var(--transition-all);
}

    /* Remove default Bootstrap arrow */
    .accordion-button::after {
        filter: brightness(0) invert(1);
        transition: var(--transition-transform);
    }

    /* When OPEN */
    .accordion-button:not(.collapsed) {
        background-color: var(--color-accordion-bg-active);
        color: var(--color-accordion-text-active) !important;
        box-shadow: none;
    }

    .accordion-button:not(.collapsed)::after {
        transform: rotate(180deg);
    }

    /* Hover effect */
    .accordion-button:hover {
        background-color: var(--color-accordion-bg-hover);
        color: var(--color-accordion-text-active) !important;
    }

    .accordion-button:focus {
        box-shadow: 0 0 0 0.25rem rgba(0, 0, 0, 0.1);
        border-color: transparent;
    }

/* ===== Accordion BODY ===== */
.accordion-body {
    background-color: var(--color-accordion-body);
    color: var(--color-accordion-text);
    padding: var(--spacing-lg);
    animation: slideDown 0.3s ease-out;
    max-width: 800px;
    width: 100%;
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
    }
    to {
        opacity: 1;
        max-height: 1000px;
    }
}

/* ===== List items inside accordion ===== */
.list-group-item {
    background-color: rgba(255, 255, 255, 0.5);
    border: none;
    color: var(--color-accordion-text);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: var(--transition-all);
}

.list-group-item:hover {
    background-color: rgba(255, 255, 255, 0.7);
    transform: translateX(4px);
}

.list-group-item + .list-group-item {
    margin-top: var(--spacing-xs);
}

/* Remove Bootstrap white borders */
.list-group {
    border: none;
}

/* ===== Concert List Styling ===== */
.accordion-body h4 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--color-primary-light);
}

/* Responsive accordion */
@media (max-width: 800px) {
    .accordion-button {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-base);
    }
    
    .accordion-body {
        padding: var(--spacing-md);
    }
    
    .accordion-body h4 {
        font-size: var(--font-size-lg);
    }

    .accordion-item {
        background-color: var(--color-accordion-bg);
        border: var(--border-width) solid var(--color-accordion-border);
        border-radius: var(--border-radius-md);
        margin-bottom: var(--spacing-sm);
        overflow: hidden;
        color: var(--color-accordion-text);
        box-shadow: var(--shadow-sm);
        transition: var(--transition-all);
        animation: fadeInUp 0.6s ease-out;
        animation-fill-mode: both;
        width: 395px;
    }
}