* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0088cc;
    --primary-hover: #006ba3;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --success-color: #28a745;
    --error-color: #dc3545;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.12);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background-color: var(--bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    padding: 80px 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-logo {
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo-image {
    width: 120px;
    height: 120px;
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    font-size: 1.125rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-primary svg {
    width: 20px;
    height: 20px;
}

/* Features Section */
.features {
    padding: 100px 0;
    background-color: var(--bg-white);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-card {
    padding: 40px;
    background-color: var(--bg-light);
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-description {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.pricing-card {
    max-width: 500px;
    margin: 0 auto;
    background-color: var(--bg-white);
    border-radius: 20px;
    padding: 50px 40px;
    box-shadow: var(--shadow-hover);
    position: relative;
    text-align: center;
    transition: transform 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-5px);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #0088cc 0%, #006ba3 100%);
    color: white;
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 136, 204, 0.3);
}

.pricing-header {
    margin-bottom: 40px;
    padding-top: 20px;
}

.pricing-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
    margin-bottom: 12px;
}

.price-amount {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.price-period {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.price-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 8px;
}

.pricing-features {
    text-align: left;
    margin-bottom: 40px;
}

.pricing-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 1rem;
    color: var(--text-primary);
}

.pricing-feature:last-child {
    border-bottom: none;
}

.pricing-feature svg {
    flex-shrink: 0;
    color: var(--primary-color);
    stroke-width: 3;
}

.btn-pricing {
    width: 100%;
    justify-content: center;
    font-size: 1.125rem;
    padding: 18px 32px;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--bg-white);
    padding: 50px;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    font-family: inherit;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
    background-color: var(--bg-white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 136, 204, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    width: 100%;
    justify-content: center;
    margin-top: 10px;
}

.form-message {
    margin-top: 20px;
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    display: none;
}

.form-message.success {
    display: block;
    background-color: #d4edda;
    color: var(--success-color);
    border: 1px solid #c3e6cb;
}

.form-message.error {
    display: block;
    background-color: #f8d7da;
    color: var(--error-color);
    border: 1px solid #f5c6cb;
}

/* Footer */
.footer {
    padding: 40px 0;
    background-color: var(--text-primary);
    color: white;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-text {
    color: rgba(255, 255, 255, 0.8);
}

.footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: white;
}

/* Offer Page Styles */
.offer-page {
    padding: 60px 0;
    background-color: var(--bg-white);
}

.offer-content {
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--bg-white);
    padding: 50px;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.offer-content h1 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.offer-content h2 {
    font-size: 1.75rem;
    margin-top: 40px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.offer-content h3 {
    font-size: 1.25rem;
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.offer-content p {
    margin-bottom: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.offer-content ul,
.offer-content ol {
    margin-bottom: 20px;
    padding-left: 30px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.offer-content li {
    margin-bottom: 10px;
}

.offer-content a {
    color: var(--primary-color);
    text-decoration: none;
}

.offer-content a:hover {
    text-decoration: underline;
}

.back-link {
    display: inline-block;
    margin-bottom: 30px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.back-link:hover {
    color: var(--primary-hover);
}

/* Responsive Design */
@media (max-width: 768px) {
    .logo-image {
        width: 100px;
        height: 100px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .pricing-card {
        padding: 40px 30px;
    }

    .price-amount {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

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

    .section-title {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .contact-form {
        padding: 30px 20px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .offer-content {
        padding: 30px 20px;
    }

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

    .offer-content h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0;
        min-height: auto;
    }

    .logo-image {
        width: 80px;
        height: 80px;
    }

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

    .pricing-card {
        padding: 30px 20px;
    }

    .price-amount {
        font-size: 2rem;
    }

    .price-period {
        font-size: 1rem;
    }

    .pricing-feature {
        font-size: 0.9rem;
        padding: 12px 0;
    }

    .btn {
        padding: 14px 24px;
        font-size: 1rem;
    }

    .features,
    .contact {
        padding: 60px 0;
    }

    .feature-card {
        padding: 30px 20px;
    }
}