/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #0F172A;
    background-color: #FFFFFF;
}

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

/* Header */
.header {
    background-color: #FFFFFF;
    border-bottom: 1px solid #E2E8F0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
}

.logo h1 {
    color: #2DD4BF;
    font-size: 32px;
    font-weight: bold;
}

.nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav a {
    text-decoration: none;
    color: #64748B;
    font-weight: 500;
    transition: color 0.2s;
}

.nav a:hover {
    color: #2DD4BF;
}

.cta-button {
    background-color: #2DD4BF !important;
    color: #FFFFFF !important;
    padding: 12px 24px;
    border-radius: 12px;
    transition: background-color 0.2s;
}

.cta-button:hover {
    background-color: #14B8A6 !important;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #F8FAFC 0%, #E2E8F0 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.hero-content h2 {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 24px;
    color: #0F172A;
    line-height: 1.2;
}

.hero-content p {
    font-size: 20px;
    color: #64748B;
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.primary-button {
    background-color: #2DD4BF;
    color: #FFFFFF;
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.2s;
}

.primary-button:hover {
    background-color: #14B8A6;
}

.secondary-button {
    background-color: transparent;
    color: #2DD4BF;
    padding: 16px 32px;
    border: 2px solid #2DD4BF;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
}

.secondary-button:hover {
    background-color: #2DD4BF;
    color: #FFFFFF;
}

/* Phone Mockup */
.hero-image {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background-color: #0F172A;
    border-radius: 24px;
    padding: 8px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.screen {
    width: 100%;
    height: 100%;
    background-color: #FFFFFF;
    border-radius: 16px;
    overflow: hidden;
}

.app-preview {
    padding: 24px;
    height: 100%;
}

.status-bar {
    height: 24px;
    background-color: #F8FAFC;
    margin: -24px -24px 24px -24px;
}

.app-content h3 {
    font-size: 24px;
    font-weight: bold;
    color: #0F172A;
    margin-bottom: 32px;
}

.form-elements {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.input {
    height: 48px;
    background-color: #F8FAFC;
    border-radius: 8px;
    border: 1px solid #E2E8F0;
}

.button-preview {
    height: 48px;
    background-color: #2DD4BF;
    border-radius: 8px;
}

/* Features Section */
.features {
    padding: 80px 0;
    background-color: #FFFFFF;
}

.features h2 {
    text-align: center;
    font-size: 40px;
    font-weight: bold;
    margin-bottom: 64px;
    color: #0F172A;
}

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

.feature-card {
    background-color: #F8FAFC;
    padding: 32px;
    border-radius: 16px;
    text-align: center;
    border: 1px solid #E2E8F0;
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 16px;
    color: #0F172A;
}

.feature-card p {
    color: #64748B;
    font-size: 16px;
}

/* About Section */
.about {
    padding: 80px 0;
    background-color: #F8FAFC;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about h2 {
    font-size: 40px;
    font-weight: bold;
    margin-bottom: 32px;
    color: #0F172A;
}

.about p {
    font-size: 18px;
    color: #64748B;
    margin-bottom: 24px;
}

/* Download Section */
.download {
    padding: 80px 0;
    background-color: #2DD4BF;
    color: #FFFFFF;
    text-align: center;
}

.download h2 {
    font-size: 40px;
    font-weight: bold;
    margin-bottom: 16px;
}

.download p {
    font-size: 20px;
    margin-bottom: 48px;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    gap: 24px;
    justify-content: center;
}

.download-button {
    display: flex;
    align-items: center;
    gap: 16px;
    background-color: #FFFFFF;
    color: #0F172A;
    padding: 16px 24px;
    border-radius: 12px;
    text-decoration: none;
    transition: transform 0.2s;
    min-width: 200px;
}

.download-button:hover {
    transform: scale(1.05);
}

.download-button span {
    font-size: 24px;
}

.download-button div {
    text-align: left;
}

.download-button small {
    display: block;
    font-size: 12px;
    color: #64748B;
}

.download-button strong {
    font-size: 16px;
    font-weight: bold;
}

/* Footer */
.footer {
    background-color: #0F172A;
    color: #94A3B8;
    padding: 32px 0;
    text-align: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 16px;
    }
    
    .nav {
        gap: 16px;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }
    
    .hero-content h2 {
        font-size: 36px;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .phone-mockup {
        width: 240px;
        height: 480px;
    }
    
    .features h2,
    .about h2,
    .download h2 {
        font-size: 32px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .container {
        padding: 0 16px;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 28px;
    }
    
    .hero-content p {
        font-size: 18px;
    }
    
    .primary-button,
    .secondary-button {
        padding: 12px 24px;
        font-size: 14px;
    }
    
    .feature-card {
        padding: 24px;
    }
    
    .download-button {
        min-width: 180px;
        padding: 12px 20px;
    }
}