:root {
    --primary-color: #2196F3;
    --secondary-color: #64B5F6;
    --text-color: #333;
    --background-color: #f8f9fa;
    --card-background: #ffffff;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

header {
    background-color: var(--card-background);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    padding: 1rem;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo img {
    height: 32px;
    width: auto;
}

.logo span {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
}

main {
    padding-top: 72px;
}

.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 4rem 1rem;
    margin-bottom: 2rem;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
}

.hero-content {
    flex: 1;
    color: white;
    max-width: 600px;
}

.hero-header {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.hero-logo {
    width: 100px;
    height: auto;
    filter: drop-shadow(0 4px 16px rgba(0,0,0,0.2));
    flex-shrink: 0;
    margin-top: 0.5rem;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin: 0;
    max-width: 300px;
    white-space: normal;
    overflow: visible;
}

.hero-description {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.download-section {
    text-align: left;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    background: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.download-text {
    color: #333;
    font-size: 0.875rem;
    line-height: 1.4;
    text-align: left;
}

.download-text strong {
    font-size: 1.25rem;
    display: block;
}

.download-arrow {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.hero-image {
    flex: 1;
    max-width: 1000px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    overflow: hidden;
}

.screenshot-stack {
    position: relative;
    width: 1000px;
    height: 600px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding-left: 2rem;
}

.app-screen {
    position: absolute;
    height: auto;
    border-radius: 24px;
    box-shadow: 0 12px 32px rgba(0,0,0,0.15);
    transition: all 0.5s ease;
    transform-origin: left center;
}

.app-screen::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 5%;
    width: 90%;
    height: 20px;
    background: linear-gradient(to bottom, rgba(0,0,0,0.1), transparent);
    filter: blur(10px);
    border-radius: 50%;
}

.app-screen:nth-child(1) {
    width: 380px;
    transform: translateX(0);
    z-index: 5;
}

.app-screen:nth-child(2) {
    width: 340px;
    transform: translateX(40%);
    z-index: 4;
    opacity: 0.95;
}

.app-screen:nth-child(3) {
    width: 300px;
    transform: translateX(80%);
    z-index: 3;
    opacity: 0.9;
}

.app-screen:nth-child(4) {
    width: 260px;
    transform: translateX(120%);
    z-index: 2;
    opacity: 0.85;
}

.app-screen:nth-child(5) {
    width: 220px;
    transform: translateX(160%);
    z-index: 1;
    opacity: 0.8;
}

.screenshot-stack:hover .app-screen:nth-child(1) {
    transform: translateX(-2%);
}

.screenshot-stack:hover .app-screen:nth-child(2) {
    transform: translateX(45%);
}

.screenshot-stack:hover .app-screen:nth-child(3) {
    transform: translateX(90%);
}

.screenshot-stack:hover .app-screen:nth-child(4) {
    transform: translateX(135%);
}

.screenshot-stack:hover .app-screen:nth-child(5) {
    transform: translateX(180%);
}

.features {
    padding: 6rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 4rem;
    color: var(--primary-color);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    padding: 0 1rem;
}

.feature-card {
    background: var(--card-background);
    padding: 2.5rem;
    border-radius: 24px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 24px rgba(0,0,0,0.1);
}

.feature-card img {
    width: 72px;
    height: 72px;
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

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

.feature-card h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: #666;
    font-size: 1.1rem;
}

footer {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 2rem;
    margin-top: 4rem;
}

@media (max-width: 1200px) {
    .hero-container {
        gap: 2rem;
    }

    .screenshot-stack {
        width: 800px;
        height: 500px;
        padding-left: 1rem;
    }

    .app-screen:nth-child(1) {
        width: 320px;
    }

    .app-screen:nth-child(2) {
        width: 290px;
    }

    .app-screen:nth-child(3) {
        width: 260px;
    }

    .app-screen:nth-child(4) {
        width: 230px;
    }

    .app-screen:nth-child(5) {
        width: 200px;
    }
}

@media (max-width: 968px) {
    .hero {
        min-height: auto;
        padding: 6rem 1rem;
    }

    .hero-container {
        flex-direction: column;
        text-align: center;
        gap: 3rem;
    }

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

    .download-section {
        text-align: center;
    }

    .download-btn {
        justify-content: center;
    }

    .hero-logo {
        width: 80px;
    }

    .hero h1 {
        font-size: 2.25rem;
        white-space: normal;
    }

    .hero-content {
        padding: 0;
    }

    .screenshot-stack {
        width: 500px;
        height: 400px;
    }

    .app-screen:nth-child(1) {
        width: 280px;
    }

    .app-screen:nth-child(2) {
        width: 250px;
        transform: translateX(35%);
    }

    .app-screen:nth-child(3) {
        width: 220px;
        transform: translateX(70%);
    }

    .app-screen:nth-child(4),
    .app-screen:nth-child(5) {
        display: none;
    }

    .screenshot-stack:hover .app-screen:nth-child(1) {
        transform: translateX(-2%);
    }

    .screenshot-stack:hover .app-screen:nth-child(2) {
        transform: translateX(40%);
    }

    .screenshot-stack:hover .app-screen:nth-child(3) {
        transform: translateX(80%);
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 4rem 1rem;
    }

    .hero-logo {
        width: 64px;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero-description {
        font-size: 1.1rem;
    }

    .screenshot-stack {
        width: 320px;
        height: 320px;
    }

    .app-screen:nth-child(1) {
        width: 240px;
    }

    .app-screen:nth-child(2),
    .app-screen:nth-child(3) {
        display: none;
    }

    .screenshot-stack:hover .app-screen:nth-child(1) {
        transform: translateX(0) scale(1.05);
    }

    .download-btn {
        padding: 0.5rem 1rem;
    }

    .download-text strong {
        font-size: 1.1rem;
    }
}