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

:root {
    --color-primary: #0f172a;
    --color-secondary: #64748b;
    --color-accent: #3b82f6;
    --color-light: #f8fafc;
    --color-border: #e2e8f0;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #ffffff;
    color: var(--color-primary);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-size: 17px;
}

.header {
    width: 100%;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
    background-color: #ffffff;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--color-primary);
    text-transform: none;
    text-decoration: none;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 400;
    transition: color 0.2s ease;
    white-space: nowrap;
}

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

.nav-link-login {
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    transition: all 0.2s ease;
}

.nav-link-login:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.nav-link-sales {
    color: var(--color-primary);
    font-weight: 500;
}

.main-content {
    flex: 1;
    padding: var(--spacing-xl) 0;
}

.container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 1rem;
    text-align: center;
    color: var(--color-primary);
}

h2 {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-secondary);
    margin-bottom: 3rem;
    text-align: center;
    line-height: 1.4;
}

h3 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-top: 3rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.main-image {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
    margin: 3rem 0;
    border-radius: 12px;
    box-shadow: 0 20px 60px -10px rgba(0, 0, 0, 0.1);
}

.content p {
    margin-bottom: 1.25rem;
    color: var(--color-primary);
    font-size: 14px;
}

.content p strong {
    font-weight: 600;
    color: var(--color-primary);
}

.content blockquote {
    margin: 1.5rem 0;
    padding: 1.25rem 1.5rem;
    background-color: var(--color-light);
    border-left: 3px solid var(--color-accent);
    border-radius: 6px;
}

.content blockquote p {
    margin: 0;
    font-style: italic;
    color: var(--color-secondary);
    font-size: 0.95rem;
}

.content ul {
    margin: 1rem 0 2rem 0;
    padding-left: 1.5rem;
}

.content ul li {
    margin-bottom: 0.5rem;
    color: var(--color-primary);
    line-height: 1.6;
}

.footer {
    width: 100%;
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
    background-color: #ffffff;
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-link {
    color: var(--color-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s ease;
}

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

.footer-socials {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.social-link {
    color: var(--color-secondary);
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s ease;
    padding: 0.25rem;
}

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

@media (max-width: 768px) {
    body {
        font-size: 16px;
    }
    
    .header {
        padding: var(--spacing-sm) 0;
    }
    
    .header-content {
        padding: 0 var(--spacing-sm);
        flex-wrap: wrap;
    }
    
    .logo {
        font-size: 1.25rem;
    }
    
    .nav {
        gap: var(--spacing-sm);
        flex-wrap: wrap;
    }
    
    .nav-link {
        font-size: 0.875rem;
    }
    
    .nav-link-login {
        padding: 0.375rem 0.75rem;
    }
    
    .main-content {
        padding: var(--spacing-md) 0;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 1.25rem;
        margin-bottom: 2rem;
    }
    
    h3 {
        font-size: 1.5rem;
        margin-top: 2rem;
    }
    
    .main-image {
        margin: 2rem 0;
        border-radius: 8px;
    }
    
    .footer {
        padding: var(--spacing-md) 0;
    }
    
    .footer-content {
        padding: 0 var(--spacing-sm);
        flex-direction: column;
        align-items: flex-start;
    }
    
    .footer-links {
        gap: var(--spacing-sm);
    }
    
    .footer-socials {
        width: 100%;
        justify-content: flex-start;
    }
}

/* Contact Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    animation: modalSlideIn 0.3s ease;
}

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

.modal-close {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--color-secondary);
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background-color: var(--color-light);
    color: var(--color-primary);
}

.modal-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.modal-subtitle {
    font-size: 0.9375rem;
    color: var(--color-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--color-primary);
    transition: all 0.2s ease;
    background-color: white;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

.submit-btn {
    width: 100%;
    padding: 0.875rem 1.5rem;
    background-color: var(--color-primary);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 0.5rem;
}

.submit-btn:hover {
    background-color: #1e293b;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.2);
}

.submit-btn:active {
    transform: translateY(0);
}

.submit-btn:disabled {
    background-color: var(--color-secondary);
    cursor: not-allowed;
    transform: none;
}

.form-message {
    font-size: 0.875rem;
    padding: 0.75rem;
    border-radius: 6px;
    text-align: center;
    margin-top: 0.5rem;
    display: none;
}

.form-message.success {
    display: block;
    background-color: #dcfce7;
    color: #166534;
    border: 1px solid #86efac;
}

.form-message.error {
    display: block;
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

@media (max-width: 768px) {
    .modal-content {
        padding: 2rem 1.5rem;
        width: 95%;
        max-height: 85vh;
    }
    
    .modal-title {
        font-size: 1.5rem;
    }
    
    .modal-subtitle {
        font-size: 0.875rem;
        margin-bottom: 1.5rem;
    }
    
    .contact-form {
        gap: 1rem;
    }
}