:root {
    /* Primary color palette */
    --primary-color: #1877F2;
    --secondary-color: #42b72a;
    --accent-color: #0099ff;
    --dark-color: #18191a;
    --light-color: #f5f6f7;
    --gray-color: #8a8d91;
    --white-color: #ffffff;
    --error-color: #fa3e3e;
    
    /* Typography */
    --font-family: 'Poppins', sans-serif;
    --heading-weight: 700;
    --body-weight: 400;
    --light-weight: 300;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Borders */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    --border-width: 1px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 20px rgba(0,0,0,0.1), 0 6px 6px rgba(0,0,0,0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container */
    --container-width: 1200px;
    --container-padding: 2rem;
}

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

html {
    font-size: 62.5%; /* 10px = 1rem */
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--white-color);
}

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

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

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

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    font-family: var(--font-family);
    border: none;
    background-color: transparent;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family);
    font-weight: var(--heading-weight);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-color);
}

h1 {
    font-size: 4.8rem;
}

h2 {
    font-size: 3.6rem;
    position: relative;
    margin-bottom: var(--spacing-md);
}

h2::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

h3 {
    font-size: 2.4rem;
}

h4 {
    font-size: 1.8rem;
}

p {
    margin-bottom: var(--spacing-sm);
}

.text-center {
    text-align: center;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-width);
    padding: 0 var(--container-padding);
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1.2rem 2.4rem;
    font-weight: 600;
    font-size: 1.6rem;
    text-align: center;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-normal);
}

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

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

.btn.secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--white-color);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem 0;
    transition: all var(--transition-normal);
}

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

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

.logo a {
    display: flex;
    align-items: center;
    color: var(--dark-color);
    font-weight: 700;
    font-size: 2.2rem;
}

.logo img {
    margin-right: 1rem;
}

.main-nav {
    display: flex;
}

.main-nav li {
    margin-left: var(--spacing-md);
}

.main-nav a {
    color: var(--dark-color);
    font-weight: 500;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-normal);
}

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

.main-nav a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 20px;
}

.menu-toggle span {
    height: 2px;
    width: 100%;
    background-color: var(--dark-color);
    transition: all var(--transition-normal);
}

/* Hero Section */
.hero {
    padding: 15rem 0 10rem;
    background: linear-gradient(135deg, #1877F2, #0099ff);
    color: var(--white-color);
    text-align: center;
}

.hero h1 {
    color: var(--white-color);
    margin-bottom: var(--spacing-md);
    font-size: 5rem;
}

.hero p {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

/* About Section */
.about {
    padding: var(--spacing-xl) 0;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text p {
    margin-bottom: var(--spacing-sm);
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    display: block;
    font-size: 4rem;
    font-weight: var(--heading-weight);
    color: var(--primary-color);
}

.stat-label {
    font-size: 1.4rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Projects Section */
.projects {
    padding: var(--spacing-xl) 0;
    background-color: var(--light-color);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.project-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
}

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

.project-content {
    padding: var(--spacing-md);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-content h3 {
    margin-bottom: var(--spacing-sm);
}

.project-content p {
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.project-tag {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background-color: rgba(24, 119, 242, 0.1);
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 600;
    align-self: flex-start;
}

/* Entertainment Section */
.entertainment {
    padding: var(--spacing-xl) 0;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.resource-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--primary-color);
    transition: all var(--transition-normal);
}

.resource-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.resource-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.resource-card ul {
    margin-top: var(--spacing-sm);
}

.resource-card li {
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-sm);
    position: relative;
}

.resource-card li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* News Section */
.news {
    padding: var(--spacing-xl) 0;
    background-color: var(--light-color);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.news-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    height: 100%;
}

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

.news-content {
    padding: var(--spacing-md);
}

.news-date {
    display: block;
    font-size: 1.4rem;
    color: var(--gray-color);
    margin-bottom: var(--spacing-xs);
}

.read-more {
    display: inline-block;
    margin-top: var(--spacing-sm);
    color: var(--primary-color);
    font-weight: 600;
    position: relative;
}

.read-more::after {
    content: "→";
    margin-left: 0.5rem;
    transition: transform var(--transition-fast);
}

.read-more:hover::after {
    transform: translateX(5px);
}

/* Contact Section */
.contact {
    padding: var(--spacing-xl) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact-methods {
    margin-top: var(--spacing-md);
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.contact-method {
    text-align: center;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.contact-method:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.contact-method i {
    font-size: 2.4rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--light-color);
    color: var(--primary-color);
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
    transform: translateY(-3px);
}

.contact-form {
    background-color: var(--white-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: var(--border-width) solid var(--gray-color);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family);
    font-size: 1.6rem;
    transition: border-color var(--transition-fast);
}

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

.form-group textarea {
    resize: vertical;
}

/* Footer */
footer {
    background-color: var(--dark-color);
    color: var(--white-color);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
}

.footer-logo span {
    font-size: 1.8rem;
    font-weight: 700;
    margin-left: 1rem;
}

.footer-nav {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-nav-column h4 {
    color: var(--white-color);
    margin-bottom: var(--spacing-sm);
    font-size: 1.8rem;
}

.footer-nav-column ul {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-nav-column a {
    color: var(--gray-color);
    transition: color var(--transition-fast);
}

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

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white-color);
    transition: all var(--transition-normal);
}

.footer-social a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-favicon {
    display: flex;
    align-items: center;
}

/* Icons for demo (replace with proper icons in production) */
.icon-email, .icon-location, .icon-social {
    display: inline-block;
    width: 40px;
    height: 40px;
    background-color: rgba(24, 119, 242, 0.1);
    border-radius: 50%;
    position: relative;
    margin-bottom: var(--spacing-xs);
}

.icon-email::before {
    content: "✉";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.icon-location::before {
    content: "📍";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.icon-social::before {
    content: "👥";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Responsive Design */
@media (max-width: 1024px) {
    html {
        font-size: 60%;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .about-stats {
        flex-direction: row;
        justify-content: space-around;
    }
    
    .stat-item {
        flex: 1;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 58%;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white-color);
        box-shadow: var(--shadow-md);
        flex-direction: column;
        padding: var(--spacing-sm) 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-normal);
        opacity: 0;
        pointer-events: none;
    }
    
    .main-nav.active {
        max-height: 300px;
        opacity: 1;
        pointer-events: auto;
    }
    
    .main-nav li {
        margin: 0;
    }
    
    .main-nav a {
        display: block;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .hero {
        padding: 12rem 0 8rem;
    }
    
    .hero h1 {
        font-size: 3.6rem;
    }
    
    .footer-top {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .footer-nav {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .about-stats {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 55%;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    h1 {
        font-size: 3.2rem;
    }
    
    h2 {
        font-size: 2.8rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}