/* ===== FEATURES PAGE SPECIFIC STYLES ===== */

/* Navigation Active State */
.nav-link.active {
    color: var(--primary-blue-light);
    font-weight: 600;
}

/* Features Hero Section */
.features-hero {
    background: linear-gradient(135deg, var(--primary-blue-light) 0%, var(--secondary-blue) 100%);
    padding: 150px 0 80px;
    color: var(--pure-white);
    text-align: center;
}

.features-hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.features-hero p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.feature-highlights {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 12px 20px;
    border-radius: 25px;
    backdrop-filter: blur(10px);
}

.highlight-icon {
    font-size: 1.2rem;
}

/* Educational Features Section */
.educational-features {
    padding: var(--section-padding);
    background-color: var(--pure-white);
}

.feature-block {
    margin-bottom: 100px;
}

.feature-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.feature-block.reverse .feature-content {
    direction: rtl;
}

.feature-block.reverse .feature-text,
.feature-block.reverse .feature-visual {
    direction: ltr;
}

.feature-text h3 {
    font-size: 2.2rem;
    color: var(--primary-blue-light);
    margin-bottom: 20px;
    font-weight: 600;
}

.feature-text p {
    font-size: 1.1rem;
    color: var(--text-medium);
    line-height: 1.7;
    margin-bottom: 30px;
}

.feature-points {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.point {
    display: flex;
    align-items: center;
    gap: 12px;
}

.point-icon {
    width: 24px;
    height: 24px;
    background-color: var(--success-green);
    color: var(--pure-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: bold;
    flex-shrink: 0;
}

/* Grade Grid */
.grade-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 400px;
}

.grade-card {
    background-color: var(--light-gray);
    border-radius: 15px;
    padding: 25px 15px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.grade-card:hover {
    background-color: var(--selected-light-blue);
    transform: translateY(-5px);
    border-color: var(--primary-blue-light);
}

.grade-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-blue-light);
    margin-bottom: 10px;
}

.grade-topics {
    font-size: 0.9rem;
    color: var(--text-medium);
    line-height: 1.4;
}

.grade-12 {
    grid-column: 2;
}

/* Video Library Demo */
.video-library-demo {
    background-color: var(--pure-white);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    max-width: 450px;
}

.video-header {
    background-color: var(--light-gray);
    padding: 20px;
    border-bottom: 1px solid #E0E0E0;
}

.search-bar {
    background-color: var(--pure-white);
    border-radius: 25px;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.search-icon {
    color: var(--text-medium);
}

.search-text {
    color: var(--text-medium);
    font-size: 0.95rem;
}

.filter-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tag {
    background-color: var(--pure-white);
    color: var(--text-medium);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid #E0E0E0;
}

.tag.active {
    background-color: var(--primary-blue-light);
    color: var(--pure-white);
    border-color: var(--primary-blue-light);
}

.video-list {
    padding: 0;
}

.video-item {
    display: flex;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #F0F0F0;
    transition: background-color 0.3s ease;
    cursor: pointer;
}

.video-item:hover {
    background-color: var(--benefits-bg);
}

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

.video-thumbnail {
    width: 50px;
    height: 35px;
    background-color: var(--primary-blue-light);
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--pure-white);
    font-size: 1.2rem;
    margin-right: 15px;
}

.video-info {
    flex-grow: 1;
}

.video-title {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 3px;
}

.video-meta {
    font-size: 0.85rem;
    color: var(--text-medium);
}

.download-btn {
    background-color: var(--success-green);
    color: var(--pure-white);
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.download-btn:hover {
    background-color: var(--feature-green);
    transform: scale(1.1);
}

/* LaTeX Demo */
.latex-demo {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 400px;
}

.equation-card {
    background-color: var(--pure-white);
    border: 2px solid var(--primary-blue-light);
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(21, 101, 192, 0.1);
    transition: transform 0.3s ease;
}

.equation-card:hover {
    transform: translateY(-3px);
}

.equation-title {
    font-weight: 600;
    color: var(--primary-blue-light);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.equation {
    font-family: 'Times New Roman', serif;
    font-size: 1.3rem;
    color: var(--text-dark);
    font-style: italic;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* MathJax styling overrides */
.equation .MathJax {
    font-size: 1.2em !important;
}

.equation mjx-container {
    margin: 0 !important;
}

.solution-step {
    padding: 8px 0;
    font-size: 1.1rem;
    text-align: center;
}

.solution-step .MathJax {
    font-size: 1.1em !important;
}

/* Ensure LaTeX equations are responsive */
@media (max-width: 768px) {
    .equation .MathJax {
        font-size: 1em !important;
    }
    
    .solution-step .MathJax {
        font-size: 0.9em !important;
    }
    
    .equation {
        font-size: 1.1rem;
    }
}

/* AI Tutor Section */
.ai-tutor-section {
    background: linear-gradient(135deg, var(--benefits-bg) 0%, var(--selected-light-blue) 100%);
    padding: var(--section-padding);
}

.ai-intro {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 60px;
    background-color: var(--pure-white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--card-shadow);
}

.ai-character {
    display: flex;
    align-items: center;
    gap: 20px;
}

.mathy-avatar {
    width: 80px;
    height: 80px;
    background: transparent;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    box-shadow: 0 10px 25px rgba(21, 101, 192, 0.3);
}

.mathy-mascot-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 50%;
}

.ai-info h3 {
    font-size: 1.8rem;
    color: var(--primary-blue-light);
    margin-bottom: 5px;
    font-weight: 700;
}

.ai-info p {
    color: var(--text-medium);
    font-size: 1.1rem;
}

.ai-description {
    flex-grow: 1;
}

.ai-description p {
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--text-dark);
}

/* AI Feature Blocks */
.ai-feature-block {
    margin-bottom: 80px;
}

.ai-feature-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.ai-feature-block.reverse .ai-feature-content {
    direction: rtl;
}

.ai-feature-block.reverse .ai-feature-text,
.ai-feature-block.reverse .ai-feature-visual {
    direction: ltr;
}

.ai-feature-text h3 {
    font-size: 2rem;
    color: var(--primary-blue-light);
    margin-bottom: 20px;
    font-weight: 600;
}

.ai-feature-text p {
    font-size: 1.1rem;
    color: var(--text-medium);
    line-height: 1.7;
    margin-bottom: 25px;
}

/* Usage Limits */
.usage-limits {
    background-color: var(--pure-white);
    padding: 25px;
    border-radius: 15px;
    border-left: 4px solid var(--primary-blue-light);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.usage-limits h4 {
    color: var(--primary-blue-light);
    margin-bottom: 15px;
    font-weight: 600;
}

.limit-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid #F0F0F0;
}

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

.tier-name {
    font-weight: 600;
    color: var(--text-dark);
}

.tier-limit {
    color: var(--text-medium);
}

/* Image Analysis Demo */
.image-analysis-demo {
    display: flex;
    align-items: center;
    gap: 20px;
    background-color: var(--pure-white);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.demo-step {
    text-align: center;
    flex: 1;
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: var(--primary-blue-light);
    color: var(--pure-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin: 0 auto 15px;
}

.step-content {
    margin-bottom: 15px;
}

.handwritten-problem {
    background-color: var(--light-gray);
    padding: 20px;
    border-radius: 10px;
    position: relative;
    border: 2px dashed var(--text-medium);
}

.problem-text {
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.camera-icon {
    position: absolute;
    top: 5px;
    right: 10px;
    font-size: 1.5rem;
}

.analysis-box {
    background-color: var(--accent-blue);
    color: var(--pure-white);
    padding: 20px;
    border-radius: 10px;
}

.analysis-text {
    margin-bottom: 10px;
    font-weight: 600;
}

.progress-bar {
    background-color: rgba(255, 255, 255, 0.3);
    height: 4px;
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    background-color: var(--pure-white);
    height: 100%;
    width: 70%;
    border-radius: 2px;
    animation: progress 2s ease-in-out infinite;
}

@keyframes progress {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

.solution-box {
    background-color: var(--success-green);
    color: var(--pure-white);
    padding: 20px;
    border-radius: 10px;
}

.solution-steps {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.solution-step {
    font-family: 'Times New Roman', serif;
    font-size: 1.1rem;
    text-align: center;
}

.demo-arrow {
    font-size: 1.5rem;
    color: var(--primary-blue-light);
    font-weight: bold;
}

.step-label {
    font-size: 0.9rem;
    color: var(--text-medium);
    font-weight: 500;
}

/* Chat Demo */
.chat-demo {
    background-color: var(--pure-white);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    max-width: 450px;
    height: 400px;
    display: flex;
    flex-direction: column;
}

.chat-header {
    background-color: var(--primary-blue-light);
    color: var(--pure-white);
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-title {
    font-weight: 600;
}

.online-indicator {
    font-size: 0.9rem;
}

.chat-messages {
    flex-grow: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.message {
    max-width: 80%;
}

.user-message {
    align-self: flex-end;
}

.user-message .message-content {
    background-color: var(--primary-blue-light);
    color: var(--pure-white);
    padding: 12px 18px;
    border-radius: 18px 18px 5px 18px;
}

.ai-message .message-content {
    background-color: var(--light-gray);
    color: var(--text-dark);
    padding: 12px 18px;
    border-radius: 18px 18px 18px 5px;
}

.chat-input {
    padding: 20px;
    border-top: 1px solid #E0E0E0;
    display: flex;
    gap: 10px;
}

.chat-input input {
    flex-grow: 1;
    padding: 12px 16px;
    border: 1px solid #E0E0E0;
    border-radius: 25px;
    outline: none;
    font-size: 0.95rem;
}

.chat-input input:focus {
    border-color: var(--primary-blue-light);
}

.send-btn {
    background-color: var(--primary-blue-light);
    color: var(--pure-white);
    border: none;
    padding: 12px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.send-btn:hover {
    background-color: var(--secondary-blue);
}

/* Analytics Section */
.analytics-section {
    background-color: var(--pure-white);
    padding: 60px;
    border-radius: 20px;
    box-shadow: var(--card-shadow);
    text-align: center;
}

.analytics-section h3 {
    font-size: 2rem;
    color: var(--primary-blue-light);
    margin-bottom: 40px;
    font-weight: 600;
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.analytics-card {
    background-color: var(--light-gray);
    padding: 30px;
    border-radius: 15px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.analytics-card:hover {
    background-color: var(--selected-light-blue);
    transform: translateY(-5px);
}

.analytics-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.analytics-card h4 {
    font-size: 1.3rem;
    color: var(--primary-blue-light);
    margin-bottom: 15px;
    font-weight: 600;
}

.analytics-card p {
    color: var(--text-medium);
    line-height: 1.6;
}

/* ===== FOCUS MODE SECTION STYLES ===== */
.focus-mode-section {
    padding: var(--section-padding);
    background-color: var(--light-gray);
}

.focus-intro {
    margin-bottom: 60px;
}

.focus-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 40px;
}

.focus-stats .stat {
    text-align: center;
}

.focus-stats .stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-blue-light);
    margin-bottom: 5px;
}

.focus-stats .stat-label {
    font-size: 1rem;
    color: var(--text-medium);
}

.focus-description {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.focus-description p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-medium);
}

/* Focus Problem Section */
.focus-problem {
    background-color: var(--pure-white);
    padding: 60px;
    border-radius: 20px;
    margin-bottom: 60px;
    box-shadow: var(--card-shadow);
}

.focus-problem h3 {
    text-align: center;
    font-size: 2rem;
    color: var(--error-red);
    margin-bottom: 40px;
    font-weight: 700;
}

.problem-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.problem-stat {
    display: flex;
    align-items: center;
    gap: 20px;
}

.problem-icon {
    font-size: 3rem;
    flex-shrink: 0;
}

.problem-text h4 {
    color: var(--error-red);
    font-size: 1.3rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.problem-text p {
    color: var(--text-medium);
    line-height: 1.6;
}

/* Focus Feature Blocks */
.focus-feature-block {
    margin-bottom: 80px;
}

.focus-feature-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.focus-feature-block.reverse .focus-feature-content {
    direction: rtl;
}

.focus-feature-block.reverse .focus-feature-text {
    direction: ltr;
}

.focus-feature-text h3 {
    font-size: 2rem;
    color: var(--primary-blue-light);
    margin-bottom: 20px;
    font-weight: 700;
}

.focus-feature-text p {
    font-size: 1.1rem;
    color: var(--text-medium);
    line-height: 1.8;
    margin-bottom: 30px;
}

/* App Blocking Demo */
.app-blocking-demo {
    background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
    padding: 40px;
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.blocked-app-screen {
    background: var(--pure-white);
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    max-width: 300px;
}

.block-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.blocked-app-screen h4 {
    color: var(--error-red);
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.blocked-app-screen p {
    color: var(--text-medium);
    margin-bottom: 20px;
}

.block-options {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.9rem;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-small.primary {
    background-color: var(--primary-blue-light);
    color: var(--pure-white);
}

.btn-small.secondary {
    background-color: transparent;
    color: var(--primary-blue-light);
    border: 1px solid var(--primary-blue-light);
}

/* Website Blocking Demo */
.website-blocking-demo {
    background: var(--pure-white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
}

.browser-mockup {
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 20px;
}

.browser-header {
    background: #f5f5f5;
    padding: 10px 15px;
    border-bottom: 1px solid #ddd;
}

.url-bar {
    background: var(--pure-white);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.9rem;
    color: var(--text-medium);
}

.browser-content {
    background: var(--pure-white);
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.website-block {
    text-align: center;
    padding: 20px;
}

.block-logo {
    font-size: 3rem;
    margin-bottom: 15px;
}

.website-block h3 {
    color: var(--error-red);
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.website-block p {
    color: var(--text-medium);
}

.supported-browsers h4 {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.browser-list {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.browser-list span {
    background: var(--light-gray);
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* Schedule Interface */
.schedule-interface {
    background: var(--pure-white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
}

.schedule-interface h4 {
    font-size: 1.3rem;
    color: var(--primary-blue-light);
    margin-bottom: 20px;
}

.time-slots {
    margin-bottom: 20px;
}

.time-slot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background: var(--light-gray);
    border-radius: 10px;
    margin-bottom: 10px;
}

.slot-label {
    font-weight: 600;
    color: var(--text-dark);
}

.slot-time {
    color: var(--primary-blue-light);
    font-weight: 500;
}

.quick-controls {
    display: flex;
    gap: 10px;
}

/* Safety and Parental Features */
.focus-safety,
.focus-parental {
    margin-top: 60px;
}

.focus-safety h3,
.focus-parental h3 {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-blue-light);
    margin-bottom: 40px;
    font-weight: 700;
}

.safety-grid,
.parental-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.safety-card,
.parental-card {
    background: var(--pure-white);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--card-shadow);
}

.safety-icon,
.parental-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.safety-card h4,
.parental-card h4 {
    color: var(--primary-blue-light);
    font-size: 1.3rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.safety-card p,
.parental-card p {
    color: var(--text-medium);
    line-height: 1.6;
}

/* Technical Requirements */
.focus-technical {
    margin-top: 60px;
}

.focus-technical h3 {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-blue-light);
    margin-bottom: 40px;
    font-weight: 700;
}

.technical-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.tech-card {
    background: var(--pure-white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
}

.tech-card h4 {
    color: var(--primary-blue-light);
    font-size: 1.3rem;
    margin-bottom: 20px;
    font-weight: 600;
}

.tech-card ul {
    list-style: none;
    padding: 0;
    margin-bottom: 20px;
}

.tech-card li {
    padding: 10px 0;
    border-bottom: 1px solid var(--light-gray);
    color: var(--text-medium);
    line-height: 1.6;
}

.tech-card li:last-child {
    border-bottom: none;
}

.tech-note {
    background: var(--light-gray);
    padding: 15px;
    border-radius: 8px;
    font-size: 0.95rem;
    color: var(--text-medium);
    font-style: italic;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .features-hero h1 {
        font-size: 2.2rem;
    }
    
    .features-hero p {
        font-size: 1.1rem;
    }
    
    .feature-highlights {
        gap: 20px;
    }
    
    .highlight-item {
        padding: 10px 15px;
        font-size: 0.9rem;
    }
    
    .feature-content,
    .ai-feature-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .feature-block.reverse .feature-content,
    .ai-feature-block.reverse .ai-feature-content {
        direction: ltr;
    }
    
    .grade-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 300px;
        margin: 0 auto;
    }
    
    .grade-12 {
        grid-column: span 2;
    }
    
    .image-analysis-demo {
        flex-direction: column;
        gap: 15px;
    }
    
    .demo-arrow {
        transform: rotate(90deg);
    }
    
    .ai-intro {
        flex-direction: column;
        text-align: center;
        gap: 25px;
    }
    
    .analytics-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .video-library-demo,
    .chat-demo {
        max-width: 100%;
    }
    
    .chat-demo {
        height: 350px;
    }
}

@media screen and (max-width: 480px) {
    .features-hero {
        padding: 120px 0 60px;
    }
    
    .features-hero h1 {
        font-size: 1.8rem;
    }
    
    .feature-text h3,
    .ai-feature-text h3 {
        font-size: 1.6rem;
    }
    
    .grade-grid {
        grid-template-columns: 1fr;
        max-width: 200px;
    }
    
    .grade-12 {
        grid-column: 1;
    }
    
    .equation-card {
        padding: 15px;
    }
    
    .equation {
        font-size: 1.1rem;
    }
    
    .ai-intro {
        padding: 25px;
    }
    
    .usage-limits {
        padding: 20px;
    }
    
    .analytics-section {
        padding: 40px 20px;
    }
}

/* Responsive Design for Focus Mode */
@media screen and (max-width: 1024px) {
    .focus-stats {
        flex-direction: column;
        gap: 30px;
    }

    .focus-description {
        max-width: 90%;
    }

    .problem-stats-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .focus-feature-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .app-blocking-demo,
    .website-blocking-demo,
    .schedule-interface {
        padding: 25px;
    }

    .browser-mockup {
        max-width: 90%;
    }

    .browser-header {
        padding: 8px 12px;
    }

    .url-bar {
        padding: 4px 8px;
    }

    .browser-content {
        height: 150px;
    }

    .quick-controls {
        flex-direction: column;
        gap: 8px;
    }

    .safety-grid,
    .parental-features {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .tech-card ul {
        padding: 0 15px;
    }

    .tech-note {
        padding: 10px;
    }
}

@media screen and (max-width: 480px) {
    .focus-mode-section {
        padding: 20px 10px;
    }

    .focus-intro {
        margin-bottom: 30px;
    }

    .focus-stats {
        gap: 30px;
    }

    .focus-stats .stat-number {
        font-size: 2rem;
    }

    .focus-stats .stat-label {
        font-size: 0.8rem;
    }

    .focus-description {
        max-width: 95%;
    }

    .focus-problem {
        padding: 30px;
    }

    .focus-problem h3 {
        font-size: 1.6rem;
    }

    .problem-stats-grid {
        gap: 30px;
    }

    .problem-stat {
        gap: 15px;
    }

    .problem-icon {
        font-size: 2.5rem;
    }

    .problem-text h4 {
        font-size: 1.1rem;
    }

    .focus-feature-content {
        gap: 40px;
    }

    .focus-feature-text h3 {
        font-size: 1.6rem;
    }

    .focus-feature-text p {
        font-size: 1rem;
    }

    .app-blocking-demo,
    .website-blocking-demo,
    .schedule-interface {
        padding: 15px;
    }

    .browser-mockup {
        max-width: 95%;
    }

    .browser-header {
        padding: 6px 10px;
    }

    .url-bar {
        padding: 3px 7px;
        font-size: 0.8rem;
    }

    .browser-content {
        height: 120px;
    }

    .block-icon {
        font-size: 3rem;
    }

    .blocked-app-screen h4 {
        font-size: 1.3rem;
    }

    .blocked-app-screen p {
        font-size: 0.9rem;
    }

    .block-options {
        flex-direction: column;
        gap: 8px;
    }

    .btn-small {
        width: 100%;
        text-align: center;
    }

    .schedule-interface h4 {
        font-size: 1.1rem;
    }

    .time-slot {
        padding: 10px;
    }

    .slot-label {
        font-size: 0.9rem;
    }

    .slot-time {
        font-size: 0.9rem;
    }

    .quick-controls {
        flex-direction: column;
        gap: 8px;
    }

    .focus-safety h3,
    .focus-parental h3 {
        font-size: 1.6rem;
    }

    .safety-grid,
    .parental-features {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .safety-card h4,
    .parental-card h4 {
        font-size: 1.1rem;
    }

    .safety-card p,
    .parental-card p {
        font-size: 0.9rem;
    }

    .focus-technical h3 {
        font-size: 1.6rem;
    }

    .tech-card h4 {
        font-size: 1.1rem;
    }

    .tech-card ul {
        padding: 0 10px;
    }

    .tech-note {
        font-size: 0.8rem;
    }
}