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

body {
    font-family: Helvetica, Arial, sans-serif;
    background: white;
    color: black;
    overflow-x: hidden;
    cursor: default;
}

.container {
    width: 100%;
    min-height: 100vh;
    position: relative;
}

/* Desktop Layout */
.desktop-layout {
    display: block;
    width: 100%;
    height: 100vh;
    position: relative;
}

.mobile-layout {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    text-align: center;
}

/* Head Grid */
.head-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: repeat(6, 1fr);
    width: 100%;
    height: 100vh;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    gap: 1px;
    background: #ffffff;
}

.head-item {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background: rgb(255, 255, 255);
}

.head-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Text Overlay */
.text-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
    background: #f1f7ff;
    opacity: 1;
    padding: 50px;
    max-width: 1000px;
    width: 80%;
}

.small-text {
    font-size: 48px;
    margin-bottom: 30px;
    font-weight: normal;
}

.big-text {
    font-size: 100px;
    font-weight: bold;
    margin-bottom: 0px;
    line-height: 1.2;
}

/* Download Section */
.download-section {
    margin-top: 20px;
}

.download-btn {
    background: white;
    color: black;
    border: 2px dotted black;
    padding: 25px 50px;
    font-size: 24px;
    font-family: Helvetica, Arial, sans-serif;
    cursor: pointer;
    margin: 0 auto 30px auto;
    display: block;
}

.download-btn:hover {
    background: #f9ffb3;
}

.about-link-text {
    color: #0066cc;
    text-decoration: underline;
    font-style: normal;
    font-size: 20px;
    cursor: pointer;
}

.about-link-text:hover {
    font-style: italic;
}

.install-instructions {
    margin-top: 20px;
    text-align: left;
    background: white;
    padding: 20px;
}

.install-instructions h3 {
    margin-bottom: 15px;
    font-size: 18px;
}

.install-instructions ol {
    padding-left: 20px;
}

.install-instructions li {
    margin-bottom: 10px;
    line-height: 1.4;
}

.install-instructions code {
    background: #e0e0e0;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: monospace;
}

.hidden {
    display: none;
}

/* Mobile Layout Styles */
.mobile-head-container {
    width: 200px;
    height: 200px;
    margin-bottom: 30px;
    overflow: hidden;
}

.mobile-head-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.mobile-text {
    margin-bottom: 40px;
}

.mobile-small-text {
    font-size: 16px;
    margin-bottom: 10px;
}

.mobile-big-text {
    font-size: 32px;
    font-weight: bold;
    line-height: 1.2;
    margin-bottom: 20px;
    white-space: nowrap;
}

.mobile-desktop-note {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
}

.mobile-about-link {
    font-style: italic;
    text-decoration: underline;
    color: black;
    font-size: 16px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .desktop-layout {
        display: none;
    }
    
    .mobile-layout {
        display: flex;
    }
    
    .mobile-head-container {
        width: 150px;
        height: 150px;
    }
    
    .mobile-big-text {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .mobile-head-container {
        width: 120px;
        height: 120px;
    }
    
    .mobile-big-text {
        font-size: 24px;
    }
    
    .mobile-small-text {
        font-size: 14px;
    }
}