:root {
    --primary-color: #2563eb;
    --text-color: #1f2937;
    --background-color: #f9fafb;
    --border-color: #e5e7eb;
    --vpn-card-bg: #ffffff;
    --vpn-button-bg: #2563eb;
    --vpn-button-hover: #1d4ed8;
    --tagline-color: #6b7280;
}

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

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

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.tagline {
    color: var(--tagline-color);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

h2 {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 1rem;
    text-align: center;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}

.ip-display {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 600px;
}

.info-section {
    margin-bottom: 1.5rem;
}

.info-section:last-child {
    margin-bottom: 0;
}

.info-label {
    font-size: 1rem;
    color: #6b7280;
    margin-bottom: 0.5rem;
}

.info-value {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-color);
    word-break: break-all;
}

#ip-address {
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.5rem;
}

/* VPN Recommendations Styles */
.vpn-recommendations {
    width: 100%;
    max-width: 600px;
    margin: 2rem 0;
}

.vpn-intro {
    text-align: center;
    color: #6b7280;
    margin-bottom: 2rem;
}

.vpn-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 1rem;
}

.vpn-card {
    background: var(--vpn-card-bg);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
}

.vpn-logo {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--primary-color);
    text-align: center;
}

.vpn-features ul {
    list-style: none;
    padding: 0;
}

.vpn-features li {
    margin-bottom: 0.5rem;
    color: #4b5563;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.vpn-button {
    display: block;
    background: var(--vpn-button-bg);
    color: white;
    text-align: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.2s;
    margin-top: auto;
}

.vpn-button:hover {
    background: var(--vpn-button-hover);
}

.ad-space {
    width: 100%;
    min-height: 100px;
    background: #f3f4f6;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #9ca3af;
}

footer {
    text-align: center;
    margin-top: 2rem;
    color: #6b7280;
    font-size: 0.875rem;
}

.footer-links {
    margin-top: 0.5rem;
}

.footer-links a {
    color: var(--primary-color);
    text-decoration: none;
    margin: 0 0.5rem;
}

.footer-links a:hover {
    text-decoration: underline;
}

@media (max-width: 640px) {
    .container {
        padding: 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .tagline {
        font-size: 1rem;
    }
    
    .info-value {
        font-size: 1rem;
    }
    
    #ip-address {
        font-size: 1.25rem;
    }
    
    .vpn-cards {
        grid-template-columns: 1fr;
    }
}

.ip-container {
    display: flex;
    align-items: center;
    gap: 8px;
}

.copy-button {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.copy-button:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

.copy-icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.copy-button.copied {
    color: #4CAF50;
}

.pattern-message {
    margin-top: 8px;
    padding: 8px 12px;
    background-color: #f0f9ff;
    border-left: 4px solid #3b82f6;
    border-radius: 4px;
    color: #1e40af;
    font-size: 0.9rem;
    line-height: 1.4;
}

.test-button {
    margin-top: 8px;
    padding: 8px 16px;
    background-color: #e5e7eb;
    border: none;
    border-radius: 4px;
    color: #374151;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.test-button:hover {
    background-color: #d1d5db;
}

.content-section {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.content-section h2 {
    color: #1a1a1a;
    margin-bottom: 1rem;
}

.content-section h3 {
    color: #333;
    margin: 1.5rem 0 1rem;
}

.content-section p {
    color: #4a4a4a;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.content-section ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.content-section li {
    color: #4a4a4a;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

/* Remove contact form styles section */