/* ===================== NA FINAL & QUIZ STYLES ===================== */

.section-item.na-section.highlight {
    box-shadow: inset 0 0 0 1px rgba(245, 158, 11, 0.35);
}

.section-header h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.5;
}

.btn-large {
    padding: 14px 28px;
    font-size: 1.05rem;
}

.na-minitest {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin: 32px 0 8px;
    padding: 20px 24px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(16, 185, 129, 0.1));
    border: 1px dashed rgba(6, 182, 212, 0.55);
}

.na-minitest-info {
    display: flex;
    align-items: center;
    gap: 14px;
}

.na-minitest-info h4 {
    margin: 0 0 2px;
    font-size: 1rem;
    color: var(--text-primary);
}

.na-minitest-info p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.na-minitest-btn {
    flex-shrink: 0;
    padding: 11px 22px;
    border: none;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    color: #01262a;
    background: linear-gradient(135deg, #22d3ee, #10b981);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.na-minitest-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(16, 185, 129, 0.35);
}

.practice-hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    padding: 28px;
    margin-bottom: 28px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.12), rgba(16, 185, 129, 0.12));
    border: 1px solid rgba(6, 182, 212, 0.35);
}

.practice-hero-text h3 {
    margin: 0 0 6px;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.practice-hero-text p {
    margin: 0;
    font-size: 0.92rem;
    color: var(--text-secondary);
    max-width: 520px;
}

.practice-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 18px;
}

.practice-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.practice-card-head {
    display: flex;
    align-items: center;
    gap: 10px;
}

.practice-card-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.practice-card-head h4 {
    margin: 0;
    font-size: 0.98rem;
    color: var(--text-primary);
}

.practice-card-count {
    margin: 0;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.practice-card-btn {
    margin-top: auto;
    padding: 9px 16px;
    border: none;
    border-radius: var(--radius);
    color: #fff;
    font-size: 0.86rem;
    font-weight: 700;
    cursor: pointer;
    transition: filter 0.15s ease, transform 0.15s ease;
}

.practice-card-btn:hover {
    filter: brightness(1.12);
    transform: translateY(-2px);
}

.hoca-note {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin: 0 0 24px;
    padding: 16px 20px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.12), rgba(239, 68, 68, 0.08));
    border: 1px solid rgba(245, 158, 11, 0.5);
    border-left: 4px solid #f59e0b;
}

.hoca-note-title {
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #f59e0b;
    margin-bottom: 8px;
}

.hoca-note-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hoca-note-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.hoca-note-q {
    flex-shrink: 0;
    font-size: 0.72rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    padding: 3px 9px;
    border-radius: 10px;
    white-space: nowrap;
}

.exam-plan-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.exam-plan-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
}

.exam-plan-num {
    flex-shrink: 0;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.88rem;
    font-weight: 700;
    background: linear-gradient(135deg, #06b6d4, #10b981);
}

.exam-plan-main h4 {
    margin: 0 0 4px;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.exam-plan-main p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.exam-plan-go {
    margin-left: auto;
    padding: 7px 12px;
    border: none;
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-weight: 700;
    color: #02251f;
    background: linear-gradient(135deg, #34d399, #22d3ee);
    cursor: pointer;
}

/* ===================== NA FINAL MATH UI ===================== */
.na-topic-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: #67e8f9;
    background: rgba(6, 182, 212, 0.12);
    border: 1px solid rgba(6, 182, 212, 0.35);
}

.na-math-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 14px;
    margin: 14px 0;
}

.na-math-card {
    background: linear-gradient(180deg, rgba(255,255,255,0.01), rgba(6,182,212,0.04));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 14px 16px;
}

.na-math-card h4 {
    margin: 0 0 8px;
    font-size: 13px;
    color: #67e8f9;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.na-equation {
    margin: 0;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(15, 23, 42, 0.46);
    border: 1px dashed rgba(103, 232, 249, 0.35);
    color: var(--text-primary);
    font-family: 'Times New Roman', Georgia, serif;
    font-size: 18px;
    text-align: center;
    line-height: 1.4;
}

.na-equation-sub {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.55;
}

.na-derivation {
    margin: 12px 0;
    padding: 14px 16px;
    border-left: 3px solid #22d3ee;
    border-radius: var(--radius);
    background: rgba(6, 182, 212, 0.07);
}

.na-derivation h4 {
    margin: 0 0 8px;
    color: #67e8f9;
    font-size: 13px;
}

.na-derivation ol {
    margin: 0;
    padding-left: 18px;
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.7;
}

.na-formula-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 5px 8px 0 0;
    padding: 4px 9px;
    border-radius: 999px;
    font-size: 11px;
    color: #a7f3d0;
    border: 1px solid rgba(16, 185, 129, 0.35);
    background: rgba(16, 185, 129, 0.12);
}

.na-sim-result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.na-sim-result {
    padding: 10px 12px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: rgba(15, 23, 42, 0.35);
}

.na-sim-result .k {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 3px;
}

.na-sim-result .v {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 700;
}