/* Variables */
:root {
    --primary-color: #2C9678;
    --primary-light: rgba(44, 150, 120, 0.1);
    --secondary-color: #F8F9FA;
    --text-color: #2C3E50;
    --text-light: #647282;
    --white: #FFFFFF;
    --background-color: #F5F4F7;
    --border-color: #E1E4E8;
    --transition: all 0.3s ease;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--white);
}

/* Header Styles */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo img {
    height: 32px;
}

.logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary-color);
}

.btn-download {
    background-color: var(--primary-color);
    color: var(--white) !important;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    transition: var(--transition);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Hero Section */
.hero {
    min-height: 90vh;
    background: linear-gradient(180deg, var(--background-color) 0%, var(--white) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 140%;
    background: radial-gradient(circle, var(--primary-light) 0%, transparent 70%);
    transform: rotate(-15deg);
    z-index: 1;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--text-color);
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin: 0;
}

.hero-text .subtitle {
    font-size: 1.75rem;
    color: var(--text-color);
    max-width: 720px;
    line-height: 1.5;
    font-weight: 500;
    margin: 0;
}

.hero-text .description {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 600px;
    line-height: 1.6;
    margin: 0 0 2rem;
}

.hero-visual {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.hero-logo {
    width: 240px;
    height: 240px;
    object-fit: contain;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-size: 1.125rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    min-width: 180px;
    justify-content: center;
}

.button.primary {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(44, 150, 120, 0.2);
}

.button.primary:hover {
    background-color: var(--white);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(44, 150, 120, 0.25);
}

.button.secondary {
    background-color: var(--white);
    color: var(--text-color);
    border: 2px solid var(--border-color);
}

.button.secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}

.button.secondary:hover img {
    filter: invert(48%) sepia(45%) saturate(481%) hue-rotate(118deg) brightness(95%) contrast(88%);
}

.button img {
    width: 24px;
    height: 24px;
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .hero {
        min-height: 80vh;
        padding: 5rem 1rem 3rem;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-text .subtitle {
        font-size: 1.5rem;
        padding: 0 1rem;
    }

    .hero-text .description {
        font-size: 1.125rem;
        padding: 0 1rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .button {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-text .subtitle {
        font-size: 1.25rem;
    }

    .hero-text .description {
        font-size: 1rem;
    }
}

/* Features Section */
.features {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--white);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    justify-content: center;
}

.feature-card {
    background: linear-gradient(135deg, var(--white) 0%, #f8f9fa 100%);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.4s ease;
    border: 2px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, #27ae60 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(44, 150, 120, 0.15);
    border-color: var(--primary-color);
}

.feature-card img,
.feature-card object,
.feature-card svg {
    width: 64px;
    height: 64px;
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
    pointer-events: none;
}

.feature-card:hover img,
.feature-card:hover object,
.feature-card:hover svg {
    transform: scale(1.1);
}

.feature-card h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Workflow Section - Not used but keeping for compatibility */
.workflow {
    padding: 6rem 2rem;
    background-color: var(--secondary-color);
}

.workflow h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
}

.workflow-steps {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.step {
    text-align: center;
}

.step img {
    width: 100%;
    max-width: 300px;
    border-radius: 16px;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.step h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
}

.step p {
    color: var(--text-light);
}

/* Pricing Section - Not used but keeping for compatibility */
.pricing {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    justify-content: center;
}

.pricing-card {
    background-color: var(--white);
    padding: 3rem 2rem;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid var(--border-color);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    transform: translateY(-8px);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.pricing-card h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
}

.price {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.price span {
    font-size: 1rem;
    color: var(--text-light);
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-card li {
    margin-bottom: 0.75rem;
    color: var(--text-light);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #2c2c2c 0%, #1a1a1a 100%);
    padding: 4rem 2rem 2rem;
    color: #ffffff;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-logo img {
    height: 32px;
}

.footer-logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.footer-links {
    display: flex;
    gap: 4rem;
    flex-wrap: wrap;
}

.footer-column h4 {
    color: #ffffff;
    margin-bottom: 1rem;
    font-weight: 600;
    font-size: 1.1rem;
}

.footer-column a {
    display: block;
    color: #cccccc;
    text-decoration: none;
    margin-bottom: 0.75rem;
    transition: all 0.3s ease;
    padding: 0.25rem 0;
    border-radius: 4px;
    position: relative;
}

.footer-column a::before {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.footer-column a:hover {
    color: var(--primary-color);
    transform: translateX(4px);
}

.footer-column a:hover::before {
    width: 100%;
}

.footer-bottom {
    max-width: 1200px;
    margin: 2rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: #cccccc;
}

/* About Section */
.about {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, var(--white) 0%, var(--background-color) 100%);
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
}

.about-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
}

.about-text {
    max-width: 900px;
    text-align: center;
}

.quote {
    font-size: 1.8rem;
    background: linear-gradient(45deg, var(--primary-color), #27ae60);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    margin-bottom: 2rem;
    font-style: italic;
    position: relative;
}

.quote::before,
.quote::after {
    content: '"';
    font-size: 3rem;
    color: rgba(44, 150, 120, 0.2);
    position: absolute;
    font-family: serif;
}

.quote::before {
    top: -10px;
    left: -30px;
}

.quote::after {
    bottom: -20px;
    right: -30px;
}

.about-text p {
    font-size: 1.125rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 3rem;
    text-align: justify;
}

/* Tech Stack Section */
.tech-stack {
    background: var(--white);
    border-radius: 20px;
    padding: 2.5rem;
    margin: 3rem 0;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
    text-align: left;
}

.tech-stack h3 {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 600;
}

.tech-stack ul {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.tech-stack li {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
}

.tech-stack li:hover {
    transform: translateX(8px);
    box-shadow: 0 4px 16px rgba(44, 150, 120, 0.15);
}

.tech-stack strong {
    color: var(--primary-color);
    font-weight: 600;
    margin-right: 8px;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.about-feature {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.5rem 1rem;
    background: var(--white);
    border-radius: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
}

.about-feature:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(44, 150, 120, 0.15);
    border-color: var(--primary-color);
}

.about-feature .icon {
    font-size: 1.8rem;
    filter: grayscale(0%);
    transition: all 0.3s ease;
}

.about-feature:hover .icon {
    transform: scale(1.1);
}

.about-feature span:last-child {
    font-weight: 500;
    color: var(--text-color);
}

/* Download Section */
.download {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, var(--background-color) 0%, rgba(44, 150, 120, 0.05) 100%);
    text-align: center;
}

.download h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.download-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 4rem;
    background: linear-gradient(45deg, var(--primary-color), #27ae60);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

/* System Requirements Section */
.system-requirements {
    background: var(--white);
    border-radius: 20px;
    padding: 3rem 2rem;
    margin: 4rem auto;
    max-width: 1000px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
}

.system-requirements h3 {
    font-size: 1.8rem;
    color: var(--text-color);
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 600;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.requirement-item {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 2rem 1.5rem;
    border-radius: 16px;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.requirement-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, #27ae60 100%);
    transition: all 0.3s ease;
}

.requirement-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(44, 150, 120, 0.15);
    border-color: var(--primary-color);
}

.requirement-item:hover::before {
    height: 6px;
}

.requirement-item strong {
    display: block;
    font-size: 1.25rem;
    color: var(--text-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.requirement-item p {
    color: var(--text-light);
    margin: 0.5rem 0;
    font-size: 0.95rem;
}



/* Contact Info */
.contact-info {
    background: var(--white);
    border-radius: 16px;
    padding: 2rem;
    margin: 3rem auto;
    max-width: 600px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
}

.contact-info p {
    margin: 0.75rem 0;
    font-size: 1rem;
    color: var(--text-light);
}

.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
}

.contact-info a:hover {
    background: rgba(44, 150, 120, 0.1);
    transform: translateY(-1px);
}

.download-options {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.download-option {
    background: linear-gradient(135deg, var(--white) 0%, #f8f9fa 100%);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    text-decoration: none;
    color: var(--text-color);
    min-width: 260px;
    transition: all 0.4s ease;
    border: 2px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.download-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(44, 150, 120, 0.1), transparent);
    transition: all 0.6s ease;
}

.download-option:hover::before {
    left: 100%;
}

.download-option:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(44, 150, 120, 0.2);
    border-color: var(--primary-color);
    background: linear-gradient(135deg, var(--white) 0%, rgba(44, 150, 120, 0.05) 100%);
}

/* Disabled state for download options */
.download-option.disabled {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    color: var(--text-light);
    cursor: not-allowed;
    border-color: #dee2e6;
}

.download-option.disabled:hover {
    transform: none;
    box-shadow: none;
    border-color: #dee2e6;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.download-option.disabled::before {
    display: none;
}

.download-option.disabled img,
.download-option.disabled object,
.download-option.disabled svg {
    opacity: 0.5;
    filter: grayscale(100%);
}

.download-option.disabled .store-name {
    color: #6c757d;
    font-style: italic;
}

.download-option img,
.download-option object,
.download-option svg {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    pointer-events: none;
}

.download-option span {
    display: block;
    text-align: center;
}

.download-option span:first-of-type {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 0.25rem;
}

.store-name {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* QR Code styles */
.qr-popup {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--white);
    padding: 1rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-top: 1rem;
    z-index: 100;
}

.download-option:hover .qr-popup {
    display: block;
}

.qr-popup img {
    width: 120px;
    height: 120px;
    margin: 0;
}

.qr-popup::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 16px;
    height: 16px;
    background: var(--white);
}

.github-link {
    margin-top: 2rem;
}

.github-link a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: 1rem 2rem;
    border-radius: 8px;
    background-color: var(--white);
    transition: var(--transition);
}

.github-link a:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.github-link img {
    width: 24px;
    height: 24px;
}

/* Scenarios Section */
.scenarios {
    padding: 6rem 0;
    background-color: var(--white);
}

.scenarios h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: 3rem;
}

.scenarios-carousel {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
    padding: 0 2rem;
}

.scenario-slides {
    display: flex;
    transition: transform 0.5s ease;
}

.scenario-slide {
    min-width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    align-items: center;
    padding: 2rem;
}

.scenario-content {
    text-align: left;
}

.scenario-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.scenario-slide img {
    width: 100%;
    max-width: 400px;
    height: auto;
    object-fit: contain;
}

.scenario-slide h3 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.scenario-slide .subtitle {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.scenario-slide p {
    font-size: 1.125rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* Carousel Navigation */
.carousel-dots {
    display: flex;
    justify-content: center;
    margin-top: 3rem;
    gap: 0.75rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--text-light);
    opacity: 0.2;
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    opacity: 1;
    background-color: var(--primary-color);
    transform: scale(1.2);
}

@media (max-width: 768px) {
    .scenarios h2 {
        font-size: 2rem;
        margin-bottom: 2rem;
    }

    .scenario-slide {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .scenario-content {
        text-align: center;
        order: 2;
    }

    .scenario-image {
        order: 1;
    }

    .scenario-slide h3 {
        font-size: 1.75rem;
    }

    .scenario-slide .subtitle {
        font-size: 1.125rem;
    }

    .scenario-slide p {
        font-size: 1rem;
    }
}

/* Responsive Design Updates */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 6rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-content {
        margin-bottom: 3rem;
    }

    .cta-buttons {
        justify-content: center;
    }

    .nav-links {
        display: none;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
        gap: 2rem;
    }

    .about-features {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .about-feature {
        padding: 1rem 0.5rem;
        flex-direction: column;
        gap: 0.5rem;
    }

    .download-options {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }

    .download-option {
        width: 100%;
        max-width: 320px;
        padding: 2rem 1.5rem;
    }

    .system-requirements {
        padding: 2rem 1.5rem;
        margin: 2rem 1rem;
    }

    .requirements-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .requirement-item {
        padding: 1.5rem 1rem;
    }

    .tech-stack {
        padding: 2rem 1.5rem;
        margin: 2rem 0;
    }

    .tech-stack ul {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .tech-stack li {
        padding: 0.75rem;
        font-size: 0.9rem;
    }

    .quote::before,
    .quote::after {
        display: none;
    }

    .contact-info {
        margin: 2rem 1rem;
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .about-features {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .download-option {
        max-width: 280px;
        padding: 1.5rem;
    }

    .system-requirements h3 {
        font-size: 1.5rem;
    }

    .requirement-item strong {
        font-size: 1.1rem;
    }

    .tech-stack h3 {
        font-size: 1.3rem;
    }
}