:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --dark-color: #212529;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #333;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
    color: white;
    padding: 100px 0;
    margin-bottom: 0;
}

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

.hero-logo {
    height: 120px;
    width: 120px;
    border-radius: 50%;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    animation: fadeInScale 0.8s ease-out;
}

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

.hero-description {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 2rem;
    opacity: 0.95;
}

.hero-buttons .btn {
    padding: 12px 30px;
    font-size: 1.1rem;
    border-radius: 50px;
    transition: transform 0.3s ease;
}

.hero-buttons .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

/* Section Title */
.section-title {
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

/* Feature Cards */
.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
    background: white;
    border: 1px solid #e9ecef;
}

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

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.feature-card p {
    color: var(--secondary-color);
    line-height: 1.6;
}

/* Feature Details */
.feature-detail {
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 10px;
    height: 100%;
    border-left: 4px solid var(--primary-color);
}

.feature-detail h3 {
    color: var(--dark-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.feature-detail h3 i {
    color: var(--primary-color);
    margin-right: 10px;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #198754 0%, #146c43 100%);
    color: white;
    padding: 80px 0;
    margin-top: 4rem;
}

.cta-section .btn {
    padding: 12px 30px;
    font-size: 1.1rem;
    border-radius: 50px;
}

/* Download Box */
.download-box {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* Requirements */
.requirements ul {
    text-align: left;
    max-width: 400px;
    margin: 2rem auto;
}

.requirements ul li {
    padding: 0.5rem 0;
    font-size: 1.1rem;
}

.requirements ul li i {
    margin-right: 10px;
}

/* Footer */
footer {
    background-color: var(--dark-color) !important;
}

.footer-logo {
    height: 50px;
    width: 50px;
    border-radius: 50%;
}

footer h5, footer h6 {
    font-weight: 600;
}

footer a:hover {
    color: var(--primary-color) !important;
    transition: color 0.3s ease;
}

.social-links a {
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--primary-color) !important;
}

/* Navbar */
.navbar-brand {
    font-size: 1.3rem;
    display: flex;
    align-items: center;
}

.navbar-logo {
    height: 40px;
    width: 40px;
    margin-right: 10px;
    border-radius: 50%;
}

.navbar-brand i {
    font-size: 1.5rem;
}

.nav-link {
    font-size: 1.05rem;
    margin: 0 0.5rem;
    transition: opacity 0.3s ease;
}

.nav-link:hover {
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
    }

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

    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 0.5rem 0 !important;
    }

    .feature-card {
        margin-bottom: 1rem;
    }
}