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

:root {
    --primary-green: #4CAF50;
    --dark-green: #388E3C;
    --light-green: #81C784;
    --text-dark: #212121;
    --text-light: #757575;
    --background: #FFFFFF;
    --section-bg: #F9F9F9;
    --border-color: #E0E0E0;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--background);
    color: var(--text-dark);
    line-height: 1.6;
    scroll-behavior: smooth;
}

/* Navigation */
.navbar {
    background-color: var(--background);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-green);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: var(--primary-green);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    padding: 120px 24px;
    text-align: center;
}

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

.hero-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 14px 32px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background-color: var(--primary-green);
    color: white;
}

.btn-primary:hover {
    background-color: var(--dark-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
}

.btn-secondary:hover {
    background-color: var(--primary-green);
    color: white;
}

.btn-large {
    padding: 18px 40px;
    font-size: 18px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    text-align: center;
    color: var(--text-light);
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Features Section */
.features {
    background-color: var(--background);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.feature-card {
    background-color: var(--background);
    padding: 32px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background-color: #E8F5E9;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-green);
}

.feature-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
    background-color: var(--section-bg);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--primary-green);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    margin: 0 auto 24px;
}

.step h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.step p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.6;
}

/* Screenshots Section */
.screenshots {
    background-color: var(--section-bg);
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.screenshot-item {
    text-align: center;
}

.screenshot-image {
    width: 100%;
    max-width: 300px;
    margin: 0 auto 24px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-hover);
    transition: transform 0.3s, box-shadow 0.3s;
    background-color: #F5F5F5;
}

.screenshot-image:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.screenshot-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 16px;
}

.screenshot-item h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.screenshot-item p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.6;
}

/* Showcase Section */
.showcase {
    background-color: var(--background);
}

.showcase-content {
    margin-top: 48px;
}

.showcase-item {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    margin-bottom: 64px;
    align-items: center;
}

.showcase-item.reverse {
    direction: rtl;
}

.showcase-item.reverse > * {
    direction: ltr;
}

.showcase-text {
    padding: 24px;
}

.showcase-text h3 {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.showcase-text p {
    font-size: 18px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.showcase-text ul {
    list-style: none;
    padding-left: 0;
}

.showcase-text li {
    font-size: 16px;
    color: var(--text-light);
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
}

.showcase-text li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 8px;
    height: 8px;
    background-color: var(--primary-green);
    border-radius: 50%;
}

/* About Section */
.about {
    background-color: var(--section-bg);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    margin-top: 48px;
}

.about-text {
    font-size: 18px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 24px;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--dark-green) 100%);
    color: white;
    text-align: center;
    padding: 100px 24px;
}

.cta h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    color: white;
}

.cta p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta .btn-primary {
    background-color: white;
    color: var(--primary-green);
}

.cta .btn-primary:hover {
    background-color: #F5F5F5;
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background-color: var(--text-dark);
    color: white;
    padding: 64px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 48px;
    margin-bottom: 48px;
}

.footer-section h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--light-green);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .section-title {
        font-size: 28px;
    }

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

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

    .nav-menu {
        gap: 16px;
        font-size: 14px;
    }

    .showcase-item.reverse {
        direction: ltr;
    }

    .cta h2 {
        font-size: 32px;
    }

    .cta p {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 80px 16px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

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

    .btn {
        width: 100%;
    }

    section {
        padding: 60px 0;
    }

    .nav-container {
        padding: 0 16px;
    }

    .nav-menu {
        gap: 12px;
        font-size: 13px;
    }
}