.project-hero {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-alternate) 100%);
    padding: 5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-text h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.1;
}

.hero-description {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.hero-tagline {
    font-size: 1.25rem;
    color: var(--accent-color);
    font-weight: 600;
    font-style: italic;
    margin-bottom: 2rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

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

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
}

.section {
    padding: 4rem 0;
}

.section-alt {
    background-color: var(--bg-secondary);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

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

.feature-category {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: box-shadow 0.2s;
}

.feature-category:hover {
    box-shadow: var(--shadow-md);
}

.feature-category-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    line-height: 1.6;
    border-bottom: 1px solid var(--border-color);
}

.feature-list li:last-child {
    border-bottom: none;
}

.feature-list strong {
    color: var(--text-primary);
    font-weight: 600;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.screenshot {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.screenshot img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    background-color: var(--bg-secondary);
    padding: 1rem;
}

.screenshot p {
    padding: 1rem;
    text-align: center;
    font-weight: 600;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.download-section {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.latest-version {
    text-align: center;
    padding: 3rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.version-badge {
    display: inline-block;
    background-color: white;
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-weight: 700;
    font-size: 0.875rem;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.latest-version h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.download-options {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-large svg {
    width: 24px;
    height: 24px;
}

.download-note {
    margin-top: 1.5rem;
    font-size: 0.875rem;
    opacity: 0.9;
}

.old-versions {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.old-versions h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.version-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.version-link {
    display: block;
    padding: 0.75rem 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.version-link:hover {
    background-color: var(--bg-alternate);
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.changelog {
    max-width: 800px;
    margin: 0 auto;
}

.changelog-item {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.changelog-item:last-child {
    margin-bottom: 0;
}

.version-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--border-color);
}

.changelog-item ul {
    list-style: none;
    padding-left: 0;
}

.changelog-item li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
    line-height: 1.6;
}

.changelog-item li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
}

@media (max-width: 768px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .hero-text {
        text-align: center;
    }

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

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

    .screenshots-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 2rem;
    }

    .version-list {
        grid-template-columns: 1fr;
    }
}

.placeholder-image {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.placeholder-image p {
    margin-top: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-content p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-content ul {
    list-style: none;
    padding-left: 0;
    margin-top: 1.5rem;
}

.about-content li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
    font-size: 1.125rem;
}

.about-content li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: 700;
}

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

.hotkey-group {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: box-shadow 0.2s;
}

.hotkey-group:hover {
    box-shadow: var(--shadow-md);
}

.hotkey-group-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--border-color);
}

.hotkey-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.hotkey-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.hotkey-item kbd {
    display: inline-block;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.hotkey-item span {
    color: var(--text-secondary);
    font-weight: 500;
}

@media (max-width: 480px) {
    .project-hero {
        padding: 3rem 0;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1.25rem;
    }

    .hero-tagline {
        font-size: 1rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn-large {
        width: 100%;
        justify-content: center;
    }

    .screenshot img {
        height: 180px;
    }

    .latest-version {
        padding: 2rem;
    }

    .latest-version h3 {
        font-size: 1.5rem;
    }

    .hotkeys-grid {
        grid-template-columns: 1fr;
    }
}

.page-hero {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-alternate) 100%);
    padding: 4rem 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.page-hero h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.page-hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

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

.support-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.support-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.support-card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

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

.contact-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
}

.contact-card .support-icon {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
}

.contact-card h2 {
    color: white;
}

.contact-card p {
    color: rgba(255, 255, 255, 0.9);
}

.contact-info {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.contact-info .btn {
    background-color: white;
    color: var(--primary-color);
    border-color: white;
}

.contact-info .btn:hover {
    background-color: rgba(255, 255, 255, 0.9);
}

.contact-info .btn-outline {
    background-color: transparent;
    color: white;
    border-color: white;
}

.contact-info .btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.projects-list {
    display: grid;
    gap: 1rem;
}

.project-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    text-decoration: none;
    transition: all 0.2s;
}

.project-link:hover {
    border-color: var(--primary-color);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.project-link-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.project-link-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.project-link svg {
    color: var(--text-muted);
    transition: transform 0.2s, color 0.2s;
}

.project-link:hover svg {
    transform: translateX(4px);
    color: var(--primary-color);
}

.about-story {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    line-height: 1.2;
}

.about-text .lead {
    font-size: 1.2rem;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.about-text p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 1rem;
}

.page-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.35rem 0.85rem;
    border-radius: 9999px;
    margin-bottom: 1rem;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    width: 100%;
}

.stat-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1.1;
    margin-bottom: 0.35rem;
}

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

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.philosophy-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: left;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.philosophy-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(37, 99, 235, 0.3);
}

.philosophy-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    color: var(--primary-color);
    margin-bottom: 1.25rem;
}

.philosophy-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.philosophy-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.975rem;
}

.contact-banner {
    text-align: center;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 3.5rem 2rem;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: var(--shadow-sm);
}

.contact-banner h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.contact-banner p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.contact-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .about-story {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .contact-info {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .page-hero {
        padding: 3rem 0;
    }

    .page-hero h1 {
        font-size: 2rem;
    }

    .page-hero p {
        font-size: 1rem;
    }

    .contact-buttons {
        flex-direction: column;
    }

    .contact-buttons .btn {
        width: 100%;
        justify-content: center;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .contact-banner {
        padding: 2rem;
    }

    .philosophy-grid {
        grid-template-columns: 1fr;
    }
}