/* Accordion Component */

.accordion {
    border: 1px solid var(--theme-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.accordion.accordion-flush {
    border: none;
    border-radius: 0;
}

.accordion.accordion-separated .accordion-item {
    margin-bottom: 0.5rem;
    border: 1px solid var(--theme-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.accordion.accordion-separated {
    border: none;
}

/* Accordion Item */
.accordion-item {
    background: var(--theme-surface);
    border-bottom: 1px solid var(--theme-border);
}

.accordion-item:last-child {
    border-bottom: none;
}

/* Accordion Header */
.accordion-header {
    margin: 0;
}

.accordion-button {
    width: 100%;
    padding: 1rem 1.25rem;
    background: var(--theme-surface);
    border: none;
    color: var(--theme-text-primary);
    font-size: 1rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.2s;
    position: relative;
}

.accordion-button:hover {
    background: var(--theme-bg);
}

.accordion-button.active {
    background: var(--theme-bg);
    color: var(--theme-accent);
}

/* Accordion Icon */
.accordion-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s;
    flex-shrink: 0;
}

.accordion-button.active .accordion-icon {
    transform: rotate(180deg);
}

/* Custom Icon */
.accordion-icon svg {
    width: 16px;
    height: 16px;
}

/* Default Chevron Icon - Disabled, using text arrow instead */
.accordion-icon::before {
    content: none;
}

/* Plus/Minus Icon Variant */
.accordion.accordion-plus .accordion-icon::before {
    content: "+";
    border: none;
    font-size: 1.25rem;
    font-weight: 400;
    line-height: 1;
}

.accordion.accordion-plus .accordion-button.active .accordion-icon::before {
    content: "−";
}

.accordion.accordion-plus .accordion-button.active .accordion-icon {
    transform: none;
}

/* Accordion Body */
.accordion-collapse {
    overflow: hidden;
    transition: height 0.3s ease;
    height: 0;
}

.accordion-collapse.show {
    height: auto;
}

.accordion-body {
    padding: 1rem 1.25rem;
    color: var(--theme-text-secondary);
    line-height: 1.6;
}

/* Bordered Variant */
.accordion.accordion-bordered {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.accordion.accordion-bordered .accordion-item {
    border-left: 3px solid transparent;
}

.accordion.accordion-bordered .accordion-item.active {
    border-left-color: var(--theme-accent);
}

/* Sizes */
.accordion.accordion-sm .accordion-button {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
}

.accordion.accordion-sm .accordion-body {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
}

.accordion.accordion-lg .accordion-button {
    padding: 1.25rem 1.5rem;
    font-size: 1.125rem;
}

.accordion.accordion-lg .accordion-body {
    padding: 1.25rem 1.5rem;
    font-size: 1rem;
}

/* Always Open */
.accordion.accordion-always-open .accordion-item {
    /* No special styles needed, handled by JavaScript */
}

/* Disabled State */
.accordion-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.accordion-button:disabled:hover {
    background: var(--theme-surface);
}

/* Nested Accordion */
.accordion-body .accordion {
    margin-top: 0.5rem;
    border: 1px solid var(--theme-border);
}

.accordion-body .accordion .accordion-button {
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
}

/* Animations for Smooth Collapse */
.accordion-collapse {
    transition: height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion-collapse.collapsing {
    overflow: hidden;
}

.accordion-collapse.show {
    overflow: visible;
}

/* Focus Styles */
.accordion-button:focus {
    outline: none;
    box-shadow: inset 0 0 0 2px var(--theme-accent-alpha);
}

/* Loading State */
.accordion-button.loading {
    pointer-events: none;
    opacity: 0.7;
}

.accordion-button.loading::after {
    content: "";
    width: 16px;
    height: 16px;
    margin-left: 0.5rem;
    border: 2px solid var(--theme-border);
    border-top-color: var(--theme-accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Responsive */
@media (max-width: 640px) {
    .accordion-button {
        padding: 0.875rem 1rem;
        font-size: 0.95rem;
    }

    .accordion-body {
        padding: 0.875rem 1rem;
    }
}