@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    body::before,
    .page-header .container::after,
    .card-media-image,
    .brand-logo,
    .hero-badge,
    .hero-marquee-track {
        animation: none !important;
    }

    .card,
    .material-btn,
    .hero-btn,
    .nav-btn,
    .submit-btn,
    .action-btn,
    .exam-action-btn,
    .exam-drawer-btn,
    .exam-modal-btn,
    .numerasi-option {
        transition: none !important;
    }
}

@media (min-width: 320px) {
    body.theme-landing .hero-actions {
        display: none;
    }

    .selection-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .exam-topbar {
        display: grid;
        gap: 12px;
    }

    .exam-topbar-copy {
        max-width: none;
    }

    .exam-topbar-copy .exam-title {
        font-size: clamp(1.75rem, 8vw, 2.35rem);
    }

    .exam-topbar-actions {
        justify-content: flex-start;
    }

    .exam-drawer-btn {
        min-height: 40px;
        padding: 9px 14px;
        font-size: 0.82rem;
    }

    .exam-home-hero,
    .exam-panel {
        padding: 20px 16px;
    }

    .exam-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        margin-top: 12px;
    }

    .exam-stat-card {
        padding: 10px 10px 9px;
        border-radius: 14px;
    }

    .exam-stat-card-time {
        grid-column: 1 / -1;
    }

    .exam-stat-label {
        margin-bottom: 3px;
        font-size: 0.73rem;
    }

    .exam-stat-value {
        font-size: 0.96rem;
    }

    .exam-timer-meta {
        gap: 6px;
        margin-top: 4px;
    }

    .exam-timer-meta .exam-stat-caption {
        font-size: 0.7rem;
        line-height: 1.3;
    }

    .exam-timer-track {
        margin-top: 8px;
    }

    .exam-question-card {
        scroll-margin-top: 84px;
    }
}

@media (min-width: 480px) {
    .cards-grid,
    .selection-grid,
    #methods-container,
    .sponsor-grid,
    .lesson-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .quiz-meta,
    .summary-grid,
    .numerasi-result-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .numerasi-options {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .numerasi-choice-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .exam-home-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .exam-home-details {
        padding: 12px;
    }

    .exam-details-body {
        padding: 12px 0;
        font-size: 13px;
        line-height: 1.5;
    }

    .outline-item {
        padding: 8px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        font-size: 13px;
        line-height: 1.4;
    }

    .exam-home-title {
        font-size: 24px;
    }

    .exam-home-subtitle {
        font-size: 14px;
    }

    .mobile-nav-drawer {
        padding: 16px;
    }

    .mobile-nav-panel {
        width: min(100%, 360px);
    }

    .page-header .container,
    .content-text,
    .question-card,
    .result-hero,
    .result-card,
    .summary-card,
    .empty-state,
    .footer .container {
        padding: 22px 20px;
        border-radius: 22px;
    }

    .header-content {
        padding: 24px 20px;
        border-radius: 24px;
    }

    .exam-stats {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .exam-review-grid {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }
}

@media (min-width: 768px) {
    .container,
    body.theme-landing .container,
    body.exam-page .container {
        width: min(var(--page-max-wide), calc(100% - (var(--page-gutter-desktop) * 2)));
    }

    .breadcrumb,
    .c-breadcrumb {
        position: static;
        top: auto;
        padding: 18px 0 10px;
    }

    .breadcrumb .container,
    .c-breadcrumb .l-container {
        padding: 0;
        overflow: visible;
        white-space: normal;
        border: none;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
    }

    .header {
        padding: 24px 0 18px;
    }

    .topbar {
        position: static;
        top: auto;
        margin-bottom: 18px;
        gap: 16px;
        padding: 12px 14px;
    }

    .top-nav {
        display: flex;
    }

    .topbar-actions {
        gap: 12px;
    }

    .top-login-state {
        display: inline-flex;
    }

    .nav-toggle,
    .mobile-nav-drawer {
        display: none !important;
    }

    .header-content {
        padding: 32px;
        border-radius: 28px;
    }

    .hero-copy {
        max-width: 680px;
    }

    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        width: auto;
    }

    body.theme-landing .hero-actions {
        display: flex;
    }

    .hero-btn,
    .c-btn--hero {
        width: auto;
    }

    .cards-grid,
    .selection-grid,
    #methods-container,
    .sponsor-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .quiz-meta {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    #save-progress-btn {
        order: initial;
        grid-column: auto;
        display: grid;
        align-items: stretch;
        justify-content: stretch;
        gap: 4px;
    }

    .summary-grid,
    .numerasi-result-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .navigation-buttons,
    .quiz-actions,
    .action-buttons {
        display: flex;
        justify-content: center;
    }

    .nav-btn,
    .submit-btn {
        max-width: 280px;
    }

    .content-text,
    .question-card,
    .exam-question-card,
    .page-header .container {
        padding-left: 24px;
        padding-right: 24px;
    }

    .exam-stat-card-time {
        grid-column: auto;
    }

    .content-text {
        padding-top: 26px;
        padding-bottom: 26px;
        font-size: 1rem;
    }

    .question-card,
    .exam-question-card {
        padding-top: 28px;
        padding-bottom: 28px;
    }

    .selection-card {
        min-height: 120px;
    }

    .material-btn {
        align-items: center;
    }

    .exam-home-grid {
        grid-template-columns: 1.2fr 0.8fr;
    }

    .exam-result-hero {
        padding: 28px;
        border-radius: 30px;
    }

    .exam-home-cards,
    .exam-result-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .exam-card {
        min-height: 190px;
        padding: 16px;
    }

    .exam-card-title {
        font-size: 1.1rem;
    }

    .exam-card-copy {
        font-size: 0.88rem;
    }

    .exam-result-rank {
        width: 82px;
        height: 82px;
        border-radius: 26px;
        font-size: 1.85rem;
    }

    .exam-topbar,
    .exam-result-top,
    .exam-result-actions {
        flex-direction: row;
        align-items: flex-start;
    }

    .exam-overlay-actions,
    .exam-modal-actions,
    .exam-nav,
    .exam-result-actions {
        display: flex;
        flex-direction: row;
    }

    .exam-topbar-actions {
        justify-content: flex-end;
    }

    .exam-review-grid {
        grid-template-columns: repeat(8, minmax(0, 1fr));
    }

    .exam-drawer-grid {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }

    .exam-drawer-sheet {
        display: none;
    }
}

@media (min-width: 1024px) {
    .header-content {
        padding: 38px 36px;
    }

    .page-header .container,
    .content-text,
    .question-card,
    .result-hero,
    .result-card,
    .summary-card,
    .empty-state,
    .footer .container,
    .exam-question-card {
        padding-left: 28px;
        padding-right: 28px;
    }

    .summary-grid,
    .numerasi-result-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .numerasi-choice-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .exam-review-grid {
        grid-template-columns: repeat(10, minmax(0, 1fr));
    }

    .exam-result-hero {
        padding: 34px;
        border-radius: 34px;
    }

    .exam-result-stats {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .exam-home-cards {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 14px;
    }

    .exam-result-rank {
        width: 92px;
        height: 92px;
        border-radius: 28px;
        font-size: 2rem;
    }
}

@media (min-width: 1280px) {
    .header-content {
        padding: 44px 40px;
    }

    .topbar {
        padding-left: 18px;
        padding-right: 18px;
    }

    .cards-grid,
    .selection-grid,
    #methods-container,
    .sponsor-grid {
        gap: 18px;
    }
}

@media (max-width: 767px) {
    body.theme-landing .mode-panel {
        overflow: hidden;
        border: 1px solid var(--line);
        border-radius: 16px;
        background: rgba(255, 255, 255, 0.94);
        box-shadow: 0 5px 12px rgba(22, 55, 112, 0.045);
    }

    body.theme-landing #class-selection .mode-panel {
        border-color: rgba(45, 138, 87, 0.22);
    }

    body.theme-landing #practice-mode .mode-panel {
        border-color: rgba(45, 138, 87, 0.18);
    }

    body.theme-landing #exam-mode .mode-panel {
        border-color: rgba(217, 119, 6, 0.22);
    }

    body.theme-landing .mode-panel + .mode-panel {
        margin-top: 8px;
    }

    body.theme-landing .mode-summary {
        position: relative;
        display: grid;
        grid-template-columns: auto minmax(0, 1fr);
        align-items: center;
        gap: 10px;
        min-height: 52px;
        padding: 10px 42px 10px 11px;
        cursor: pointer;
        list-style: none;
    }

    body.theme-landing .mode-summary::-webkit-details-marker {
        display: none;
    }

    body.theme-landing .mode-summary::after {
        content: "+";
        position: absolute;
        top: 50%;
        right: 12px;
        transform: translateY(-50%);
        display: inline-grid;
        place-items: center;
        width: 24px;
        height: 24px;
        border-radius: 999px;
        color: var(--primary-strong);
        background: var(--primary-soft);
        font-weight: var(--font-weight-extrabold);
        line-height: 1;
    }

    body.theme-landing .mode-panel[open] .mode-summary::after {
        content: "-";
    }

    body.theme-landing .mode-summary .section-eyebrow {
        padding: 5px 8px;
        font-size: 0.68rem;
    }

    body.theme-landing .mode-summary-copy {
        display: grid;
        gap: 2px;
        min-width: 0;
    }

    body.theme-landing .mode-summary .section-title {
        margin: 0;
        font-size: 1rem;
        line-height: 1.2;
        text-align: left;
    }

    body.theme-landing .mode-summary .section-subtitle {
        display: block;
        margin: 0;
        font-size: 0.76rem;
        line-height: 1.25;
        text-align: left;
    }

    body.theme-landing .mode-content {
        padding: 0 10px 10px;
    }

    body.theme-landing .mobile-collapsible-section .container {
        padding: 0;
        border: none;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
    }

    body.theme-landing .info-panel {
        overflow: hidden;
        border: 1px solid var(--line);
        border-radius: 16px;
        background: rgba(255, 255, 255, 0.94);
        box-shadow: 0 5px 12px rgba(22, 55, 112, 0.045);
    }

    body.theme-landing .info-summary {
        position: relative;
        display: grid;
        grid-template-columns: auto minmax(0, 1fr);
        align-items: center;
        gap: 10px;
        min-height: 52px;
        margin: 0;
        padding: 10px 42px 10px 11px;
        cursor: pointer;
        list-style: none;
        text-align: left;
    }

    body.theme-landing .info-summary::-webkit-details-marker {
        display: none;
    }

    body.theme-landing .info-summary::after {
        content: "+";
        position: absolute;
        top: 50%;
        right: 12px;
        transform: translateY(-50%);
        display: inline-grid;
        place-items: center;
        width: 24px;
        height: 24px;
        border-radius: 999px;
        color: var(--primary-strong);
        background: var(--primary-soft);
        font-weight: var(--font-weight-extrabold);
        line-height: 1;
    }

    body.theme-landing .info-panel[open] .info-summary::after {
        content: "-";
    }

    body.theme-landing .info-summary .section-eyebrow {
        padding: 5px 8px;
        font-size: 0.68rem;
    }

    body.theme-landing .info-summary-copy {
        display: grid;
        gap: 2px;
        min-width: 0;
    }

    body.theme-landing .info-summary .section-title {
        margin: 0;
        font-size: 1rem;
        line-height: 1.2;
        text-align: left;
    }

    body.theme-landing .info-summary .section-subtitle {
        display: block;
        margin: 0;
        font-size: 0.76rem;
        line-height: 1.25;
        text-align: left;
    }

    body.theme-landing .info-content {
        padding: 0 10px 10px;
    }

    body.theme-landing #sponsors .section-title,
    body.theme-landing #faq .section-title {
        font-size: 1.28rem;
    }

    body.theme-landing #sponsors .sponsor-slider {
        min-height: 238px;
    }

    body.theme-landing #sponsors .sponsor-item {
        width: min(100%, 330px);
    }

    body.theme-landing #sponsors .sponsor-img-container {
        border-radius: 14px;
    }

    body.theme-landing #sponsors .sponsor-brand-card {
        gap: 5px;
        padding: 16px;
    }

    body.theme-landing #sponsors .sponsor-brand-card span {
        width: 46px;
        height: 46px;
        border-radius: 14px;
    }

    body.theme-landing #sponsors .sponsor-brand-card strong {
        font-size: 0.98rem;
    }

    body.theme-landing #sponsors .sponsor-brand-card small {
        font-size: 0.72rem;
    }

    body.theme-landing .section-soft .container {
        padding: 16px 14px;
        border-radius: 18px;
        box-shadow: 0 5px 12px rgba(22, 55, 112, 0.045);
    }

    body.theme-landing .help-grid {
        grid-template-columns: 1fr;
    }

    body.theme-landing .help-faq-panel .section-heading {
        text-align: center;
    }

    body.theme-landing #faq .section-heading {
        margin-bottom: 10px;
    }

    body.theme-landing #faq .section-title {
        font-size: 1.28rem;
    }

    body.theme-landing #faq .section-subtitle {
        display: none;
    }

    body.theme-landing #faq .faq-list {
        gap: 8px;
    }

    body.theme-landing #faq .faq-item {
        border-radius: 8px;
        box-shadow: 0 5px 12px rgba(22, 55, 112, 0.045);
    }

    body.theme-landing #faq .faq-item summary {
        min-height: 46px;
        padding: 12px 44px 12px 13px;
        font-size: 0.92rem;
        line-height: 1.25;
    }

    body.theme-landing #faq .faq-item summary::after {
        right: 14px;
        width: 8px;
        height: 8px;
    }

    body.theme-landing #faq .faq-item p {
        padding: 0 13px 13px;
        font-size: 0.84rem;
        line-height: 1.5;
    }

    body.theme-landing #class-selection .cards-grid,
    body.theme-landing #practice-mode .cards-grid,
    body.theme-landing #exam-mode .cards-grid {
        gap: 7px;
    }

    body.theme-landing #class-selection .card,
    body.theme-landing #practice-mode .card,
    body.theme-landing #exam-mode .card {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: center;
        min-height: 46px;
        padding: 9px 10px;
        border-radius: 12px;
        box-shadow: none;
    }

    body.theme-landing #class-selection .card-copy,
    body.theme-landing #practice-mode .card-copy,
    body.theme-landing #exam-mode .card-copy {
        display: none;
    }

    body.theme-landing #class-selection .card-title,
    body.theme-landing #practice-mode .card-title,
    body.theme-landing #exam-mode .card-title {
        font-size: 0.94rem;
        line-height: 1.2;
        letter-spacing: -0.02em;
    }

    body.theme-landing #class-selection .card-status,
    body.theme-landing #practice-mode .card-status,
    body.theme-landing #exam-mode .card-status {
        justify-self: end;
        padding: 4px 7px;
        font-size: 0.66rem;
        line-height: 1.2;
    }
}

/* Template Artikel Belajar - Task 1 Masalah 7 */
.article-container {
    max-width: 880px;
    margin: 0 auto;
}

.article-header {
    padding: 24px 0 16px;
    border-bottom: 2px solid var(--line);
    margin-bottom: 28px;
}

.article-header-title {
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    color: var(--text);
    margin: 0 0 12px;
    line-height: 1.2;
}

.article-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.article-summary {
    padding: 18px 16px;
    margin-bottom: 28px;
    border-left: 4px solid var(--brand);
    background: rgba(30, 80, 159, 0.05);
    border-radius: 8px;
}

.article-summary-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.article-summary-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

.article-content {
    padding: 0;
    border: none;
    background: transparent;
    box-shadow: none;
    margin-bottom: 32px;
}

.article-content.is-rich {
    white-space: normal;
}

.article-content h2,
.article-content h3,
.article-content h4 {
    margin: 32px 0 12px;
    color: var(--text);
    line-height: 1.2;
    letter-spacing: -0.03em;
}

.article-content h2 {
    font-size: 1.55rem;
    border-bottom: 2px solid var(--line);
    padding-bottom: 8px;
    font-weight: 700;
}

.article-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.article-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
}

.article-content p {
    margin: 0 0 16px;
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text);
}

.article-content p:last-child {
    margin-bottom: 0;
}

.article-content ul,
.article-content ol {
    margin: 14px 0 18px 28px;
    display: grid;
    gap: 10px;
    font-size: 1rem;
    line-height: 1.7;
}

.article-content ul li,
.article-content ol li {
    color: var(--text);
}

.article-content strong {
    font-weight: 600;
    color: var(--text);
}

.article-content code {
    padding: 2px 8px;
    border-radius: 6px;
    background: #eef5ff;
    color: #1a4fa3;
    font-family: Consolas, monospace;
    font-size: 0.95em;
}

.article-content sup {
    font-size: 0.8em;
    line-height: 0;
}

.formula-block,
.tip-box,
.tips-box,
.lesson-example,
.lesson-note {
    padding: 18px 16px;
    margin: 18px 0;
    border-left: 4px solid var(--brand);
    background: rgba(30, 80, 159, 0.06);
    border-radius: 8px;
    font-size: 0.99rem;
    line-height: 1.7;
}

.article-content table {
    width: 100%;
    margin: 18px 0;
    border-collapse: collapse;
    font-size: 0.95rem;
    line-height: 1.6;
}

.article-content table th,
.article-content table td {
    padding: 12px;
    border: 1px solid var(--line);
    text-align: left;
}

.article-content table th {
    background: rgba(30, 80, 159, 0.06);
    font-weight: 600;
    color: var(--text);
}

.article-content table td {
    background: rgba(255, 255, 255, 0.5);
}

.article-video-section {
    margin: 28px 0;
}

.article-video-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.article-footer {
    padding: 28px 0;
    border-top: 2px solid var(--line);
    display: grid;
    gap: 16px;
}

.article-practice-section {
    display: grid;
    gap: 12px;
}

.article-practice-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 0;
}

.article-practice-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 20px;
    background: linear-gradient(135deg, rgba(45, 138, 87, 0.88) 0%, rgba(45, 138, 87, 0.76) 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    width: 100%;
}

.article-practice-btn:hover {
    background: linear-gradient(135deg, rgba(45, 138, 87, 0.95) 0%, rgba(45, 138, 87, 0.82) 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(45, 138, 87, 0.2);
}

.article-practice-btn:active {
    transform: translateY(0);
}

.article-nav-buttons {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 12px;
    padding-top: 8px;
}

/* Media Queries untuk Article Template */
@media (min-width: 320px) {
    .article-container {
        padding: 0 16px;
    }

    .article-practice-btn {
        width: 100%;
    }
}

@media (min-width: 480px) {
    .article-container {
        padding: 0 20px;
    }

    .article-content h2 {
        font-size: 1.65rem;
    }

    .article-content h3 {
        font-size: 1.3rem;
    }
}

@media (min-width: 768px) {
    .article-container {
        padding: 0;
    }

    .article-practice-btn {
        width: auto;
    }

    .article-nav-buttons {
        grid-template-columns: 1fr auto 1fr;
    }

    /* Feedback Section Responsive */
    body.theme-landing #feedback .section-heading {
        margin-bottom: 10px;
    }

    body.theme-landing #feedback .section-title {
        font-size: 1.28rem;
    }

    body.theme-landing #feedback .feedback-desc {
        font-size: 0.88rem;
    }

    body.theme-landing .feedback-panel {
        padding: 16px;
    }

    body.theme-landing .btn-feedback {
        width: 100%;
        min-height: 44px;
        padding: 12px 14px;
        font-size: 0.88rem;
    }

    body.theme-landing .btn-icon {
        width: 18px;
        height: 18px;
        margin-right: 6px;
    }
}