:root {
    --primary-color: #55AD9B;
    --secondary-color: #95D2B3;
    --text-color: #333;
    --background-color: #ffffff;
    --section-spacing: 3rem;
    --card-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    font-family: "Quicksand", sans-serif;
    line-height: 1.6;
}

body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
}

.grid-container {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    min-height: 100vh;
    gap: 0;
}

.app-info-container {
    grid-column: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.app-info-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.app-info-header {
    margin-bottom: var(--section-spacing);
}

.app-info-header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin: 0 0 1rem 0;
    font-weight: 700;
}

.app-info-header p {
    font-size: 1.2rem;
    color: #666;
    margin: 0;
    max-width: 600px;
    margin: 0 auto;
}

.screenshots-section {
    margin: var(--section-spacing) 0;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
}

.screenshots-section h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 2rem;
    font-weight: 600;
}

.screenshots-grid {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.screenshot-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 330px;
}

.screenshot-img {
    width: 300px;
    height: 600px;
    object-fit: contain;
    border-radius: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    margin-bottom: 1rem;
    transition: transform 0.2s ease;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: -moz-crisp-edges;
    image-rendering: crisp-edges;
    image-rendering: smooth;
}

.screenshot-img:hover {
    transform: scale(1.05);
}

.screenshot-caption {
    font-size: 0.9rem;
    color: #666;
    text-align: center;
    font-weight: 500;
}

.download-section {
    margin: var(--section-spacing) 0;
    padding: 2rem;
    background: #F8FAF9;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
}

.download-section h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 2rem;
    font-weight: 600;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.download-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(85, 173, 155, 0.2);
    min-width: 180px;
    justify-content: center;
}

.download-button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(85, 173, 155, 0.3);
}

.download-button:active {
    transform: translateY(0);
}

.download-button i {
    font-size: 1.5rem;
}

.app-description {
    margin: var(--section-spacing) 0;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
}

.app-description h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.app-description p {
    font-size: 1.1rem;
    color: #666;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.features-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.features-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 1rem;
    color: #333;
}

.features-list li i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

@media screen and (max-width: 768px) {
    .app-info-container {
        padding: 1rem;
    }

    .app-info-header h1 {
        font-size: 2rem;
    }

    .app-info-header p {
        font-size: 1rem;
    }

    .screenshots-grid {
        gap: 1.5rem;
    }

    .screenshot-img {
        width: 220px;
        height: 440px;
    }

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

    .download-button {
        width: 100%;
        max-width: 250px;
    }

    .screenshots-section,
    .download-section,
    .app-description {
        padding: 1.5rem;
    }

    .screenshots-section h2,
    .download-section h2,
    .app-description h2 {
        font-size: 1.5rem;
    }
}