:root {
    --primary-color: #1a3a52;
    --secondary-color: #0066cc;
    --light-bg: #f8fafb;
    --text-dark: #2c3e50;
    --text-light: #666;
    --border-light: #e8eef5;
}

body {
    color: var(--text-dark);
}

header {
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.3rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--primary-color) !important;
}

.nav-link {
    font-weight: 500;
    color: var(--text-dark) !important;
    transition: color 0.3s;
}

.nav-link:hover {
    color: var(--secondary-color) !important;
}

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #2c5aa0 100%);
    color: white;
    padding: 6rem 2rem;
    text-align: center;
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 2.5rem;
    opacity: 0.95;
}

.btn-primary-custom {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    font-weight: 600;
    color: white;
}

.btn-primary-custom:hover {
    background-color: #0052a3;
    border-color: #0052a3;
    color: white;
}

h2 {
    font-size: 2.2rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 3rem;
    text-align: center;
}

h3 {
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 1rem;
}

.product-card {
    background: white;
    padding: 2.5rem;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    margin-bottom: 2.5rem;
    border-left: 4px solid var(--secondary-color);
    transition: box-shadow 0.3s;
}

.product-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.feature {
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 6px;
    border-left: 3px solid var(--secondary-color);
    transition: background 0.3s;
    height: 100%;
}

.feature:hover {
    background: #f0f5fa;
}

.feature h4 {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.7rem;
}

.feature p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.5;
}

.download-btn {
    background: var(--secondary-color);
    color: white;
    padding: 0.8rem 1.8rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    border: none;
    transition: background 0.3s;
    display: inline-block;
}

.download-btn:hover {
    background: #0052a3;
    color: white;
    text-decoration: none;
}

.pricing-box {
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 6px;
    text-align: center;
    margin: 2rem 0;
    border: 1px solid var(--border-light);
}

.pricing-box p {
    color: var(--text-light);
    margin: 0.5rem 0;
}

.about-content {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 6px;
    margin-bottom: 2rem;
    border-left: 4px solid var(--secondary-color);
}

.team-member {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 6px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    border-top: 3px solid var(--secondary-color);
}

.team-member h4 {
    color: var(--primary-color);
    font-weight: 600;
    margin-top: 0.5rem;
}

.team-member a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 700;
}

.team-member a:hover {
    color: var(--secondary-color);
}

.faq-item {
    background: white;
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: 6px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    cursor: pointer;
    border-left: 4px solid var(--border-light);
    transition: border-color 0.3s;
}

.faq-item:hover {
    border-left-color: var(--secondary-color);
}

.faq-item h4 {
    color: var(--primary-color);
    font-weight: 600;
    user-select: none;
}

.faq-answer {
    display: none;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
    color: var(--text-light);
    font-size: 0.95rem;
}

.faq-item.open .faq-answer {
    display: block;
}

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    border-left: 4px solid var(--secondary-color);
    max-width: 600px;
    margin: 2rem auto;
}

.form-label {
    color: var(--primary-color);
    font-weight: 600;
}

.form-control, .form-control:focus {
    border: 1px solid #d0d8e0;
    border-radius: 4px;
}

.form-control:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 102, 204, 0.1);
}

.btn-submit {
    background: var(--secondary-color);
    color: white;
    padding: 0.9rem 2rem;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    width: 100%;
    transition: background 0.3s;
}

.btn-submit:hover {
    background: #0052a3;
    color: white;
}

.bg-primary-dark {
    background: var(--primary-color) !important;
}

.footer-section h4 {
    color: white;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-section a {
    color: #aaa;
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #2c5aa0;
    color: #999;
    font-size: 0.9rem;
}

.terms-section {
    background: white;
    padding: 1.8rem;
    margin-bottom: 1.5rem;
    border-radius: 6px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    border-left: 4px solid var(--secondary-color);
}

.terms-section p {
    color: var(--text-light);
    margin-bottom: 0.8rem;
    line-height: 1.7;
}

.video-placeholder {
    background: #f0f5fa;
    padding: 2.5rem;
    text-align: center;
    border-radius: 6px;
    margin: 2rem 0;
    color: var(--text-light);
    border: 1px dashed var(--secondary-color);
}

.contact-info {
    text-align: center;
    margin-top: 2rem;
    padding: 2rem;
    background: var(--light-bg);
    border-radius: 6px;
}

.contact-info p {
    color: var(--text-light);
    margin: 0.5rem 0;
}

.contact-info .email {
    font-size: 1.05rem;
    color: var(--secondary-color);
    font-weight: 600;
}

.button-group {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.screenshot-placeholder {
    background: #f0f5fa;
    border: 2px dashed var(--secondary-color);
    border-radius: 6px;
    aspect-ratio: 9/16;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
}

main {
    min-height: calc(100vh - 200px);
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

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

    h2 {
        font-size: 1.8rem;
    }

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