/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4A90E2;
    --primary-dark: #357ABD;
    --primary-light: #6BA3E8;
    --secondary-color: #5B9BD5;
    --secondary-dark: #4472C4;
    --accent-color: #6C9BD4;
    --text-primary: #2C3E50;
    --text-secondary: #5A6C7D;
    --text-light: #8A9BA8;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F7FA;
    --bg-tertiary: #E8ECF0;
    --border-color: #D1D9E0;
    --shadow: rgba(74, 144, 226, 0.1);
    --shadow-hover: rgba(74, 144, 226, 0.2);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background-color: var(--bg-primary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px var(--shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: white;
    font-size: 24px;
    font-weight: 700;
    text-decoration: none;
}

.logo-text {
    color: white;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: white;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: white;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #E8F2FF 0%, #D1E7FF 100%);
    padding: 100px 0;
    text-align: center;
}

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

.hero-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.2;
}

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

.hero-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: white;
    padding: 12px 24px;
    border-radius: 30px;
    box-shadow: 0 4px 12px var(--shadow);
    color: var(--text-primary);
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--shadow-hover);
}

.badge svg {
    flex-shrink: 0;
}

/* Apps Section */
.apps-section {
    padding: 100px 0;
    background-color: var(--bg-primary);
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 60px;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.apps-grid > a {
    text-decoration: none;
    color: inherit;
    display: block;
    cursor: pointer;
}

.app-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 4px 20px var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px var(--shadow-hover);
}

.app-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}

.app-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    text-align: center;
}

.app-description {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
    text-align: center;
}

.app-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 30px;
}

.feature-tag {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.app-links {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.app-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    flex: 1;
    justify-content: center;
    max-width: 150px;
}

.android-link {
    background: linear-gradient(135deg, #3DDC84 0%, #2EBD6B 100%);
    color: white;
}

.android-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(46, 189, 107, 0.3);
}

.ios-link {
    background: linear-gradient(135deg, #007AFF 0%, #0051D5 100%);
    color: white;
}

.ios-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

/* About Section */
.about-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, #E8F2FF 100%);
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
}

.about-text {
    margin-bottom: 60px;
}

.about-paragraph {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
    text-align: center;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.about-feature {
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 16px var(--shadow);
    transition: transform 0.3s ease;
}

.about-feature:hover {
    transform: translateY(-5px);
}

.feature-icon {
    display: inline-flex;
    margin-bottom: 20px;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
    border-radius: 12px;
}

.feature-icon svg {
    stroke: white;
}

.feature-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.feature-description {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Contact Section */
.contact-section {
    padding: 100px 0;
    background-color: var(--bg-primary);
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-text {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 12px var(--shadow);
}

.contact-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-hover);
}

.contact-link svg {
    stroke: white;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--text-primary) 0%, #1A252F 100%);
    padding: 40px 0;
    color: rgba(255, 255, 255, 0.8);
}

.footer-content {
    text-align: center;
}

.footer-text {
    font-size: 14px;
}

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

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

    .nav {
        gap: 20px;
    }

    .nav-link {
        font-size: 14px;
    }

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

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

    .app-card {
        padding: 30px;
    }

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

    .hero-badges {
        flex-direction: column;
        align-items: center;
    }

    .app-links {
        flex-direction: column;
    }

    .app-link {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .header-content {
        flex-direction: column;
        gap: 20px;
    }

    .nav {
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero {
        padding: 60px 0;
    }

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

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

    .apps-section,
    .about-section,
    .contact-section {
        padding: 60px 0;
    }
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}