/* ==========================================================================
   Qatar Internet Informational Website - Main Stylesheet
   Color Palette: White, Teal, Charcoal Grey
   ========================================================================== */

/* CSS Variables */
:root {
    --color-primary: #008080;
    --color-primary-dark: #006666;
    --color-primary-light: #00a0a0;
    --color-accent: #20b2aa;
    --color-charcoal: #36454f;
    --color-charcoal-light: #4a5c68;
    --color-white: #ffffff;
    --color-off-white: #f8f9fa;
    --color-light-grey: #e9ecef;
    --color-border: #dee2e6;
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-heading: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
    --max-width: 1200px;
    --border-radius: 8px;
}

/* Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--color-charcoal);
    background-color: var(--color-white);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--color-primary-dark);
}

ul, ol {
    list-style-position: inside;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-charcoal);
    line-height: 1.3;
    margin-bottom: 1rem;
    font-weight: 600;
}

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

h2 {
    font-size: 2rem;
    color: var(--color-primary);
    border-bottom: 3px solid var(--color-accent);
    padding-bottom: 0.5rem;
    display: inline-block;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.5rem;
    color: var(--color-charcoal-light);
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
    color: var(--color-charcoal);
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
header {
    background-color: var(--color-white);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 24px;
    height: 24px;
    fill: white;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.logo-text span {
    color: var(--color-charcoal);
}

/* Navigation */
nav {
    display: flex;
    align-items: center;
}

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

.nav-menu li {
    position: relative;
}

.nav-menu a {
    padding: 0.75rem 1rem;
    color: var(--color-charcoal);
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: var(--transition);
    display: block;
}

.nav-menu a:hover,
.nav-menu a.active {
    background-color: var(--color-primary);
    color: var(--color-white);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-charcoal);
    border-radius: 2px;
    transition: var(--transition);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: var(--color-white);
    padding: 4rem 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="3" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="70" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="60" cy="90" r="1.5" fill="rgba(255,255,255,0.1)"/></svg>');
    background-size: 200px 200px;
    opacity: 0.5;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    color: var(--color-white);
    font-size: 3rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-content p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   Page Header (for internal pages)
   ========================================================================== */
.page-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: var(--color-white);
    padding: 3rem 0;
    text-align: center;
}

.page-header h1 {
    color: var(--color-white);
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   Content Sections
   ========================================================================== */
.content-section {
    padding: 4rem 0;
}

.content-section:nth-child(even) {
    background-color: var(--color-off-white);
}

.section-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.info-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.info-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.info-card h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.info-card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-card-icon svg {
    width: 28px;
    height: 28px;
    fill: white;
}

.info-card p {
    color: var(--color-charcoal-light);
    line-height: 1.7;
}

/* Feature Box */
.feature-box {
    background: linear-gradient(135deg, var(--color-off-white), var(--color-white));
    border-left: 4px solid var(--color-primary);
    padding: 1.5rem 2rem;
    margin: 1.5rem 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.feature-box h4 {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

/* ==========================================================================
   Home Page Specific
   ========================================================================== */
.intro-section {
    padding: 4rem 0;
    background-color: var(--color-white);
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.intro-content p {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--color-charcoal-light);
}

.quick-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.quick-link-card {
    background-color: var(--color-white);
    border: 2px solid var(--color-light-grey);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
}

.quick-link-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.quick-link-card h3 {
    margin-bottom: 0.75rem;
}

.quick-link-card p {
    color: var(--color-charcoal-light);
    margin-bottom: 1.5rem;
}

.quick-link-card a {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--border-radius);
    font-weight: 500;
}

.quick-link-card a:hover {
    background-color: var(--color-primary-dark);
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-section {
    padding: 4rem 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq-question {
    padding: 1.25rem 1.5rem;
    background-color: var(--color-off-white);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--color-charcoal);
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--color-light-grey);
}

.faq-question svg {
    width: 20px;
    height: 20px;
    fill: var(--color-primary);
    transition: transform 0.3s ease;
}

.faq-answer {
    padding: 1.5rem;
    border-top: 1px solid var(--color-border);
    display: none;
}

.faq-answer.active {
    display: block;
}

.faq-answer p {
    margin-bottom: 0.5rem;
}

/* ==========================================================================
   Contact Page
   ========================================================================== */
.contact-section {
    padding: 4rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.contact-info h3 {
    margin-bottom: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background-color: var(--color-off-white);
    border-radius: var(--border-radius);
}

.contact-item-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item-icon svg {
    width: 20px;
    height: 20px;
    fill: white;
}

.contact-item-content h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    color: var(--color-charcoal);
}

.contact-item-content p {
    margin-bottom: 0;
    color: var(--color-charcoal-light);
}

/* Contact Form */
.contact-form {
    background-color: var(--color-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.contact-form h3 {
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-charcoal);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 128, 128, 0.1);
}

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

.submit-btn {
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.submit-btn:hover {
    background-color: var(--color-primary-dark);
}

/* ==========================================================================
   About Page
   ========================================================================== */
.about-section {
    padding: 4rem 0;
}

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

.about-content p {
    line-height: 1.9;
    margin-bottom: 1.5rem;
}

.purpose-box {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin: 2rem 0;
}

.purpose-box h3 {
    color: var(--color-white);
    margin-bottom: 1rem;
}

.purpose-box p {
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 0;
}

/* ==========================================================================
   Privacy Policy
   ========================================================================== */
.privacy-section {
    padding: 4rem 0;
}

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

.privacy-content h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.privacy-content p {
    line-height: 1.8;
    margin-bottom: 1rem;
}

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

.privacy-content li {
    margin-bottom: 0.5rem;
    color: var(--color-charcoal-light);
}

/* ==========================================================================
   Footer
   ========================================================================== */
footer {
    background-color: var(--color-charcoal);
    color: var(--color-white);
    padding: 3rem 0 1.5rem;
    margin-top: auto;
}

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

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

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-accent);
}

/* Disclaimer */
.disclaimer {
    background-color: rgba(0, 0, 0, 0.2);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-top: 2rem;
}

.disclaimer p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 0;
    line-height: 1.7;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-image {
        order: -1;
    }

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

@media (max-width: 768px) {
    .header-container {
        padding: 1rem;
    }

    .menu-toggle {
        display: flex;
    }

    nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        box-shadow: var(--shadow-lg);
        padding: 1rem;
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        z-index: 999;
    }

    nav.active {
        transform: translateY(0);
    }

    .nav-menu {
        flex-direction: column;
        gap: 0;
    }

    .nav-menu a {
        padding: 1rem;
        border-radius: 0;
        border-bottom: 1px solid var(--color-light-grey);
    }

    .nav-menu li:last-child a {
        border-bottom: none;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .hero {
        padding: 3rem 0;
    }

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

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

    .content-section {
        padding: 3rem 0;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .quick-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 0 1rem;
    }

    .info-card {
        padding: 1.5rem;
    }

    .contact-form {
        padding: 1.5rem;
    }

    .disclaimer {
        padding: 1rem;
    }
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */
.text-center {
    text-align: center;
}

.mt-2 {
    margin-top: 2rem;
}

.mb-2 {
    margin-bottom: 2rem;
}

.hidden {
    display: none;
}

/* Network Animation for visual elements */
.network-bg {
    position: relative;
    overflow: hidden;
}

.network-nodes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, var(--color-accent) 2px, transparent 2px),
        radial-gradient(circle at 80% 20%, var(--color-accent) 3px, transparent 3px),
        radial-gradient(circle at 40% 70%, var(--color-accent) 2px, transparent 2px),
        radial-gradient(circle at 70% 60%, var(--color-accent) 2px, transparent 2px),
        radial-gradient(circle at 10% 80%, var(--color-accent) 1.5px, transparent 1.5px);
    opacity: 0.3;
}

/* Scroll to top button */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    z-index: 100;
}

.scroll-top:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-3px);
}

.scroll-top svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

/* Print styles */
@media print {
    header, footer, .scroll-top, .menu-toggle {
        display: none;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }

    .hero {
        background: none !important;
        color: var(--color-charcoal);
        padding: 1rem 0;
    }

    .hero-content h1 {
        color: var(--color-charcoal);
    }

    a {
        color: var(--color-charcoal);
    }

    a[href]::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #666;
    }
}