/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary-color: #4CAF50;
    --secondary-color: #2196F3;
    --text-color: #333;
    --light-bg: #f5f5f5;
    --transition-speed: 0.3s;
}

body {
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

/* Navbar styles */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-speed) ease;
    backdrop-filter: blur(10px);
}

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

.logo-img {
    height: 48px;
    width: 48px;
    margin-right: 0.75rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(76,175,80,0.08);
    background: white;
    object-fit: contain;
    transition: transform 0.3s cubic-bezier(.4,2,.6,1);
}

.logo-img:hover {
    transform: scale(1.08) rotate(-3deg);
}

.logo h1 {
    color: var(--primary-color);
    font-size: 1.8rem;
    transition: transform var(--transition-speed) ease;
}

.logo h1:hover {
    transform: scale(1.05);
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    margin-left: 2rem;
    font-weight: 500;
    position: relative;
    transition: color var(--transition-speed) ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--primary-color);
    transition: width var(--transition-speed) ease;
}

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

/* Hero section */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, #4CAF50 0%, #2196F3 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 1rem;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><rect width="1" height="1" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.1;
    animation: backgroundMove 20s linear infinite;
}

@keyframes backgroundMove {
    0% { background-position: 0 0; }
    100% { background-position: 100px 100px; }
}

.hero-logo {
    display: block;
    margin: 0 auto 1.5rem auto;
    height: 96px;
    width: 96px;
    border-radius: 24px;
    box-shadow: 0 4px 24px rgba(33,150,243,0.10);
    background: white;
    object-fit: contain;
    animation: fadeIn 1.2s cubic-bezier(.4,2,.6,1);
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

.hero-content {
    max-width: 800px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: white;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: all var(--transition-speed) ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.cta-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* Features section */
.features {
    padding: 5rem 5%;
    background-color: var(--light-bg);
    position: relative;
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.features h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background-color: var(--primary-color);
    transition: width var(--transition-speed) ease;
}

.features h2:hover::after {
    width: 100px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 15px rgba(0,0,0,0.1);
    transition: all var(--transition-speed) ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
    z-index: 0;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 5px 25px rgba(0,0,0,0.2);
}

.feature-card:hover::before {
    opacity: 0.05;
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    transition: transform var(--transition-speed) ease;
}

.feature-card:hover i {
    transform: scale(1.2);
}

/* About section */
.about {
    padding: 5rem 5%;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about h2 {
    margin-bottom: 2rem;
    font-size: 2.5rem;
}

/* Download section */
.download {
    padding: 5rem 5%;
    background-color: var(--light-bg);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.download::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.1) 0%, rgba(33, 150, 243, 0.1) 100%);
    z-index: 0;
}

.download h2 {
    margin-bottom: 1rem;
    font-size: 2.5rem;
    position: relative;
}

.download p {
    margin-bottom: 2rem;
    position: relative;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    padding: 1rem 2rem;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: all var(--transition-speed) ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.download-btn:hover::before {
    left: 100%;
}

.download-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.download-btn i {
    margin-right: 0.5rem;
    font-size: 1.5rem;
    transition: transform var(--transition-speed) ease;
}

.download-btn:hover i {
    transform: scale(1.2);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    background-color: #333;
    color: white;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

/* Responsive design */
@media (max-width: 768px) {
    .navbar {
        padding: 1rem;
    }

    .nav-links {
        display: none;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .features h2,
    .about h2,
    .download h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

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