/* Variant D - Digital Connectivity Theme */
/* 5G Internet Informational Website */

:root {
    --primary-blue: #2563EB; /* Electric blue accents */
    --dark-slate: #334155; /* Dark slate text */
    --light-blue: #F0F9FF; /* Very light blue background */
    --light-grey: #F1F5F9; /* Light grey section blocks */
    --white: #FFFFFF;
    --text-color: #334155;
    --border-color: #CBD5E1;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--light-blue);
}

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

/* Header */
header {
    background: linear-gradient(135deg, #1e40af 0%, #2563EB 100%);
    color: var(--white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--white);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

nav a {
    color: var(--white);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: background-color 0.3s;
    font-size: 0.9rem;
}

nav a:hover {
    background-color: rgba(255,255,255,0.2);
}

/* Main Content */
main {
    padding: 3rem 0;
}

section {
    background-color: var(--white);
    border-radius: 10px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

h1 {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

h2 {
    font-size: 1.8rem;
    color: var(--dark-slate);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--primary-blue);
}

h3 {
    font-size: 1.4rem;
    color: var(--dark-slate);
    margin-bottom: 0.8rem;
}

p {
    margin-bottom: 1rem;
    color: #475569;
}

ul, ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
    color: #475569;
}

/* Information Cards */
.info-card {
    background-color: var(--light-grey);
    border-left: 4px solid var(--primary-blue);
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 5px;
}

/* Disclaimer Box */
.disclaimer {
    background-color: #FEF3C7;
    border-left: 4px solid #F59E0B;
    padding: 1rem;
    margin: 1.5rem 0;
    border-radius: 5px;
    font-size: 0.9rem;
}

.disclaimer p {
    margin-bottom: 0.5rem;
    color: #92400E;
}

/* Button */
.btn {
    display: inline-block;
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 0.8rem 1.5rem;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background-color: #1e40af;
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 2rem 0;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-slate);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
}

/* FAQ Section */
faq-item {
    margin-bottom: 1.5rem;
}

faq-question {
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

faq-answer {
    margin-left: 1.5rem;
}

/* Footer */
footer {
    background-color: var(--dark-slate);
    color: var(--white);
    padding: 3rem 0;
    margin-top: 3rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-section h4 {
    color: var(--light-blue);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section a {
    color: #94A3B8;
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-disclaimer {
    background-color: rgba(0,0,0,0.2);
    padding: 1.5rem;
    margin-top: 2rem;
    border-radius: 5px;
}

.footer-disclaimer p {
    color: #94A3B8;
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.contact-info {
    font-size: 0.95rem;
}

.contact-info p {
    margin-bottom: 0.8rem;
    color: #E2E8F0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    nav a {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    section {
        padding: 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.6rem;
    }
    
    h2 {
        font-size: 1.3rem;
    }
    
    nav a {
        font-size: 0.75rem;
        padding: 0.3rem 0.6rem;
    }
}

/* Accessibility */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Print Friendly */
@media print {
    header,
    footer {
        background-color: var(--white) !important;
        color: var(--text-color) !important;
    }
    
    nav {
        display: none;
    }
    
    section {
        page-break-inside: avoid;
    }
}