:root {
    --primary: #4361ee;
    --secondary: #3f37c9;
    --accent: #4895ef;
    --dark: #1b263b;
    --light: #f8f9fa;
    --success: #4cc9f0;
    --danger: #f72585;
    --warning: #f8961e;
    --whatsapp: #25D366;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background-color: #f8fafc;
    color: #1e293b;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo i {
    margin-right: 0.5rem;
    font-size: 1.5rem;
}

nav ul {
    display: flex;
    list-style: none;
    transition: all 0.3s ease;
}

nav ul li {
    margin-left: 2rem;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

nav ul li a:hover {
    color: var(--accent);
}

nav ul li a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.mobile-menu-btn:hover {
    transform: scale(1.1);
}

main {
    flex: 1;
    padding-top: 80px;
}

.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1551288049-bebda4e38f71?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    min-height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: white;
    padding: 0 2rem;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    animation: fadeIn 1s ease;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.btn-container {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--primary);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(67, 97, 238, 0.4);
    background: var(--secondary);
}

.btn-whatsapp {
    background: linear-gradient(to right, var(--whatsapp), #128C7E);
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
    background: linear-gradient(to right, #128C7E, var(--whatsapp));
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.container {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--dark);
    position: relative;
    font-size: 2rem;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--accent);
    margin: 0.5rem auto;
    border-radius: 2px;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

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

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--dark);
}

.feature-desc {
    color: #64748b;
    font-size: 1rem;
}

footer {
    margin-top: auto;
}

.copyright {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--dark);
    color: white;
    width: 100%;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive styles */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
    }
    
    nav ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        flex-direction: column;
        padding: 1rem 0;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }
    
    nav ul.show {
        display: flex;
    }
    
    nav ul li {
        margin: 0;
        text-align: center;
    }
    
    nav ul li a {
        display: block;
        padding: 1rem;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .btn-container {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.5rem;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .hero {
        padding: 0 1rem;
    }
}