body {
    font-family: 'Poppins', sans-serif;
    color: #2c3e50;
    line-height: 1.8;
}
.hero-section {
    background: linear-gradient(120deg, #1a237e 0%, #283593 100%);
    padding: 120px 0;
    color: white;
    position: relative;
    overflow: hidden;
}
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTQ0MCIgaGVpZ2h0PSI3NjUiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+PGRlZnM+PGxpbmVhckdyYWRpZW50IHgxPSIwJSIgeTE9IjAlIiB4Mj0iMTAwJSIgeTI9IjEwMCUiIGlkPSJhIj48c3RvcCBzdG9wLWNvbG9yPSIjRkZGIiBzdG9wLW9wYWNpdHk9Ii4wNSIgb2Zmc2V0PSIwJSIvPjxzdG9wIHN0b3AtY29sb3I9IiNGRkYiIHN0b3Atb3BhY2l0eT0iMCIgb2Zmc2V0PSIxMDAlIi8+PC9saW5lYXJHcmFkaWVudD48L2RlZnM+PHBhdGggZD0iTTAgMGgxNDQwdjc2NUgweiIgZmlsbD0idXJsKCNhKSIgZmlsbC1ydWxlPSJldmVub2RkIi8+PC9zdmc+');
    opacity: 0.1;
}
.converter-box {
    background: white;
    border-radius: 20px;
    padding: 50px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    margin-top: -80px;
    position: relative;
    z-index: 1;
}
.features-section {
    padding: 100px 0;
    background: #f8f9fa;
}
.feature-card {
    text-align: center;
    padding: 40px 30px;
    background: white;
    border-radius: 15px;
    transition: all 0.4s ease;
    margin-bottom: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.03);
}
.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}
.feature-icon {
    font-size: 50px;
    color: #1a237e;
    margin-bottom: 25px;
    background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.faq-section {
    padding: 100px 0;
    background: #fff;
}
.advantages-section {
    padding: 100px 0;
}
.advantage-card {
    background: white;
    padding: 35px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}
.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}
.steps-section {
    background: white;
    padding: 100px 0;
}
.step-card {
    text-align: center;
    padding: 40px;
    background: #f8f9fa;
    border-radius: 15px;
    margin-bottom: 30px;
    transition: all 0.3s ease;
}
.step-card:hover {
    background: white;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}
.btn-primary {
    background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
    border: none;
    padding: 12px 30px;
    border-radius: 10px;
    font-weight: 500;
    transition: all 0.3s ease;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26,35,126,0.3);
}
.form-control {
    padding: 15px;
    border-radius: 10px;
    border: 2px solid #e8ecf5;
}
.form-control:focus {
    border-color: #1a237e;
    box-shadow: 0 0 0 0.2rem rgba(26,35,126,0.15);
}
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: #1a237e;
}
.navbar {
    padding: 20px 0;
    transition: all 0.3s ease;
}
.navbar-brand {
    font-weight: 700;
    font-size: 24px;
}
.nav-link {
    font-weight: 500;
    padding: 10px 20px !important;
}
.accordion-button:not(.collapsed) {
    background-color: #f8f9fa;
    color: #1a237e;
}
.accordion-button:focus {
    box-shadow: none;
}
footer {
    background: #1a237e;
    padding: 50px 0;
}
footer a {
    text-decoration: none;
    transition: all 0.3s ease;
}
footer a:hover {
    color: #fff !important;
    opacity: 0.8;
}
.text-red {
    color: #f23333;
}