/* uiux.css — small modern UI tweaks to enhance layout and readability */
:root {
    --content-max: 1100px;
}

/* container improvements */
#tips-section,
.app {
    max-width: var(--content-max);
    margin-left: auto;
    margin-right: auto;
}

/* headings */
h1,
h2,
h3 {
    font-family: 'Plus Jakarta Sans', Inter, sans-serif;
    color: var(--text-main)
}

/* improved accordion visuals */
.accordion-item {
    border-radius: 16px;
    border: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.6), transparent);
    padding: 0;
    overflow: hidden
}

.accordion-header {
    padding: 18px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer
}

.accordion-header:hover {
    background: var(--bg-card);
    box-shadow: var(--shadow-md)
}

.accordion-content {
    max-height: 0;
    transition: max-height 0.35s ease;
    overflow: hidden
}

.accordion-content.open {
    max-height: 2000px;
    padding: 20px
}

/* nicer section numbers */
.section-num {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800
}

/* readable text */
.accordion-body {
    font-size: 15px;
    color: var(--text-secondary)
}

/* cards */
.bg-white {
    background: var(--bg-card) !important
}

.rounded-2xl {
    border-radius: 18px
}

/* responsiveness tweaks */
@media (max-width:768px) {
    :root {
        --content-max: 92vw
    }

    .accordion-header {
        padding: 14px
    }
}

/* subtle utility */
.badge {
    display: inline-block;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--bg-pill);
    color: var(--text-secondary);
    font-weight: 700
}

/* typography improvements for tables */
.grammar-table th {
    background: transparent;
    color: var(--text-main);
    font-weight: 700;
    padding: 10px;
    text-align: left
}

.grammar-table td {
    padding: 10px;
    color: var(--text-secondary)
}

/* CTA tweaks */
button.option-btn {
    transition: transform 0.18s ease, box-shadow 0.18s ease
}

button.option-btn.correct {
    background: var(--success-bg);
    color: var(--success-text)
}

button.option-btn.wrong {
    background: var(--danger-bg);
    color: var(--danger-text)
}

/* small utility for content spacing */
.container-gap {
    gap: 20px
}