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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    overflow-x: hidden;
    color: #1d1d1f;
    background-color: #f5f5f7;
    transition: color 0.3s ease, background-color 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    body {
        color: #f5f5f7;
        background-color: #000000;
    }
}

.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.background-light {
    background-image: url('images/bigsurday.webp');
}

.background-dark {
    background-image: url('images/bigsurnight.webp');
    display: none;
}

@media (prefers-color-scheme: dark) {
    .background-light {
        display: none;
    }
    .background-dark {
        display: block;
    }
}

.blur-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    background: rgba(255, 255, 255, 0.3);
}

@media (prefers-color-scheme: dark) {
    .blur-overlay {
        background: rgba(0, 0, 0, 0.4);
    }
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.hero {
    text-align: center;
    margin-bottom: 10px;
}

.icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
}

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

.icon-light {
    display: block;
}

.icon-dark {
    display: none;
}

@media (prefers-color-scheme: dark) {
    .icon-light {
        display: none;
    }
    .icon-dark {
        display: block;
    }
}

h1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 24px;
    font-weight: 400;
    opacity: 0.8;
    margin-bottom: 10px;
}

.download-section {
    text-align: center;
    margin: 10px 0;
}

.download-btn {
    display: inline-block;
    padding: 16px 40px;
    background: rgba(0, 122, 255, 0.9);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.download-btn:hover {
    background: rgba(0, 122, 255, 1);
    box-shadow: 0 10px 30px rgba(0, 122, 255, 0.3);
}

.requirements {
    font-size: 14px;
    opacity: 0.7;
    margin-top: 16px;
}

.screenshot-container {
    width: 100%;
    max-width: 700px;
    margin: 0;
    border-radius: 16px;
    overflow: hidden;
    background: transparent;
}

.screenshot-light {
    display: block;
    width: 100%;
    height: auto;
}

.screenshot-dark {
    display: none;
    width: 100%;
    height: auto;
}

@media (prefers-color-scheme: dark) {
    .screenshot-light {
        display: none;
    }
    .screenshot-dark {
        display: block;
    }
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin: 40px 0 10px 0;
    width: 100%;
}

.feature {
    text-align: center;
    padding: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    .feature {
        background: rgba(0, 0, 0, 0.2);
    }
}

.feature:hover {
    background: rgba(255, 255, 255, 0.15);
}

@media (prefers-color-scheme: dark) {
    .feature:hover {
        background: rgba(0, 0, 0, 0.3);
    }
}

.feature-icon {
    margin-bottom: 16px;
}

.feature-icon img {
    width: 40px;
    height: 40px;
}

@media (prefers-color-scheme: dark) {
    .feature-icon img {
        filter: invert(1);
    }
}

.feature h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.feature p {
    font-size: 16px;
    opacity: 0.8;
    line-height: 1.5;
}

.credits {
    margin-top: 80px;
    text-align: center;
    font-size: 14px;
    opacity: 0.7;
    max-width: 700px;
}

.credits a {
    color: inherit;
    text-decoration: underline;
}

.credits-author {
    margin-top: 20px;
}

@media (max-width: 768px) {
    h1 {
        font-size: 40px;
    }
    .subtitle {
        font-size: 20px;
    }
    .features {
        grid-template-columns: 1fr;
    }
}