/* =============================================
   Accordion & Tab Blocks — Frontend Styles v1.1
   ============================================= */

/* ---- Accordion ---- */
.atb-accordion {
    border-radius: 8px;
    overflow: hidden;
    font-family: inherit;
    width: 100%;
}

.atb-accordion.style-bordered {
    border: 1.5px solid #e2e8f0;
}

.atb-accordion.style-shadow {
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    border: 1px solid #f0f0f0;
}

.atb-accordion.style-minimal .atb-accordion-item {
    border-bottom: 1px solid #e2e8f0;
}
.atb-accordion.style-minimal {
    border-radius: 0;
}

.atb-accordion-item {
    background: #fff;
    overflow: hidden;
}

.atb-accordion-item + .atb-accordion-item {
    border-top: 1px solid #e2e8f0;
}

.atb-accordion-header {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    padding: 18px 22px !important;
    background: none !important;
    border: none !important;
    box-shadow: none !important;
    cursor: pointer !important;
    text-align: left !important;
    gap: 12px;
    transition: background 0.18s ease;
    font-size: 1rem !important;
    font-weight: 600 !important;
    color: #1a202c !important;
    line-height: 1.4 !important;
    margin: 0 !important;
    outline: none;
}

.atb-accordion-header:hover {
    background: #f7fafc !important;
}

.atb-accordion-header:focus-visible {
    outline: 2px solid var(--atb-accent, #4f46e5) !important;
    outline-offset: -2px;
}

.atb-accordion-item.is-open > .atb-accordion-header {
    background: #f7fafc !important;
    color: var(--atb-accent, #4f46e5) !important;
}

.atb-accordion-title {
    flex: 1;
}

.atb-accordion-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--atb-accent, #4f46e5);
}

.atb-accordion-item.is-open > .atb-accordion-header .atb-accordion-icon {
    transform: rotate(180deg);
}

/* Plus/minus icon variant */
.atb-accordion.icon-plusminus .atb-accordion-icon .icon-minus { display: none; }
.atb-accordion.icon-plusminus .atb-accordion-item.is-open .atb-accordion-icon .icon-plus { display: none; }
.atb-accordion.icon-plusminus .atb-accordion-item.is-open .atb-accordion-icon .icon-minus { display: block; }

/* ---- Accordion Body: max-height animation (most compatible) ---- */
.atb-accordion-body-wrap {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.atb-accordion-item.is-open > .atb-accordion-body-wrap {
    max-height: 2000px;
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.atb-accordion-body {
    padding: 4px 22px 20px;
    color: #4a5568;
    font-size: 0.97rem;
    line-height: 1.7;
}

/* ---- Tabs ---- */
.atb-tabs {
    font-family: inherit;
    width: 100%;
}

.atb-tabs-nav {
    display: flex;
    gap: 2px;
    border-bottom: 2px solid #e2e8f0;
    flex-wrap: wrap;
    margin: 0;
    padding: 0;
    list-style: none;
}

.atb-tabs.style-pills .atb-tabs-nav {
    border-bottom: none;
    gap: 6px;
    margin-bottom: 16px;
}

.atb-tabs.style-boxed .atb-tabs-nav {
    border-bottom: none;
    background: #f1f5f9;
    border-radius: 10px;
    padding: 4px;
    gap: 2px;
    margin-bottom: 16px;
}

.atb-tab-btn {
    padding: 11px 20px !important;
    background: none !important;
    border: none !important;
    box-shadow: none !important;
    cursor: pointer !important;
    font-size: 0.95rem !important;
    font-weight: 500 !important;
    color: #718096 !important;
    border-bottom: 2px solid transparent !important;
    margin-bottom: -2px !important;
    transition: color 0.18s, border-color 0.18s, background 0.18s;
    white-space: nowrap;
    border-radius: 0 !important;
    line-height: 1.4 !important;
}

.atb-tab-btn:hover {
    color: var(--atb-accent, #4f46e5) !important;
}

.atb-tab-btn.is-active {
    color: var(--atb-accent, #4f46e5) !important;
    border-bottom-color: var(--atb-accent, #4f46e5) !important;
    font-weight: 600 !important;
}

.atb-tab-btn:focus-visible {
    outline: 2px solid var(--atb-accent, #4f46e5) !important;
    outline-offset: 2px;
    border-radius: 4px !important;
}

/* Pills */
.atb-tabs.style-pills .atb-tab-btn {
    border-bottom: none !important;
    border-radius: 50px !important;
    padding: 9px 20px !important;
}
.atb-tabs.style-pills .atb-tab-btn.is-active {
    background: var(--atb-accent, #4f46e5) !important;
    color: #fff !important;
}

/* Boxed */
.atb-tabs.style-boxed .atb-tab-btn {
    border-bottom: none !important;
    border-radius: 7px !important;
    padding: 9px 18px !important;
    flex: 1;
    text-align: center;
}
.atb-tabs.style-boxed .atb-tab-btn.is-active {
    background: #fff !important;
    color: var(--atb-accent, #4f46e5) !important;
    box-shadow: 0 1px 6px rgba(0,0,0,0.1) !important;
}

.atb-tabs-content {
    padding: 20px 0 0;
}

.atb-tab-panel {
    display: none;
    color: #4a5568;
    font-size: 0.97rem;
    line-height: 1.7;
}

.atb-tab-panel.is-active {
    display: block;
    animation: atbFadeIn 0.22s ease;
}

@keyframes atbFadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
    .atb-accordion-header { padding: 14px 16px !important; font-size: 0.95rem !important; }
    .atb-accordion-body   { padding: 4px 16px 16px; }
    .atb-tab-btn          { padding: 9px 14px !important; font-size: 0.88rem !important; }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
    .atb-accordion-body-wrap { transition: none; }
    .atb-accordion-icon      { transition: none; }
    .atb-tab-panel           { animation: none; }
}