/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

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

/* Navigation Styles */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    background: linear-gradient(45deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.8rem;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #667eea;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    transition: width 0.3s ease;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    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"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s both;
}

.cta-button {
    display: inline-block;
    padding: 15px 30px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    animation: fadeInUp 1s ease 0.4s both;
}

.cta-button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* Article Section */
.article-section {
    background: white;
    padding: 80px 0;
    min-height: 100vh;
}

.main-article {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    margin: 2rem 0;
}

.article-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem 2rem;
    text-align: center;
}

.article-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    font-size: 1rem;
    opacity: 0.9;
}

.article-category {
    background: rgba(255, 255, 255, 0.2);
    padding: 5px 15px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.article-content {
    padding: 3rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-content h2 {
    color: #667eea;
    font-size: 1.8rem;
    margin: 2.5rem 0 1rem 0;
    font-weight: 600;
}

.article-content h3 {
    color: #764ba2;
    font-size: 1.4rem;
    margin: 2rem 0 1rem 0;
    font-weight: 600;
}

.article-content p {
    margin-bottom: 1.5rem;
    text-align: justify;
}

.article-link {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.article-link:hover {
    border-bottom-color: #667eea;
}

/* Special Content Boxes */
.roadmap-box, .highlight-box, .glossary-box, .process-box, .conclusion-box {
    margin: 2rem 0;
    padding: 2rem;
    border-radius: 15px;
    position: relative;
}

.roadmap-box {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.highlight-box {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
}

.glossary-box {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    color: #333;
}

.process-box {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    color: #333;
}

.conclusion-box {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    color: #333;
    border-left: 5px solid #667eea;
}

.roadmap-box h3, .highlight-box h3, .glossary-box h3, .process-box h3, .conclusion-box h2 {
    margin-bottom: 1rem;
    font-weight: 600;
}

.roadmap-box ul, .highlight-box ul {
    list-style: none;
    padding-left: 0;
}

.roadmap-box li, .highlight-box li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
}

.roadmap-box li::before, .highlight-box li::before {
    content: '✓';
    position: absolute;
    left: 0;
    font-weight: bold;
    color: rgba(255, 255, 255, 0.8);
}

.glossary-box dl {
    margin: 0;
}

.glossary-box dt {
    font-weight: 600;
    margin-top: 1rem;
    color: #333;
}

.glossary-box dd {
    margin-left: 1rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.process-step {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    backdrop-filter: blur(5px);
}

.process-step h4 {
    margin-bottom: 0.5rem;
    color: #333;
}

/* About Section */
.about-section {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    padding: 80px 0;
    text-align: center;
}

.about-section h2 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 2rem;
    font-weight: 600;
}

.about-section p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto;
    color: #555;
    line-height: 1.8;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 3rem 0 1rem 0;
}

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

.footer-section h3, .footer-section h4 {
    margin-bottom: 1rem;
    color: #ecf0f1;
}

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

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

.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #667eea;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #95a5a6;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(255, 255, 255, 0.95);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        backdrop-filter: blur(10px);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .article-title {
        font-size: 2rem;
    }

    .article-content {
        padding: 2rem 1.5rem;
        font-size: 1rem;
    }

    .article-meta {
        flex-direction: column;
        gap: 1rem;
    }

    .about-section h2 {
        font-size: 2rem;
    }

    .about-section p {
        font-size: 1.1rem;
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .article-content {
        padding: 1.5rem 1rem;
    }

    .roadmap-box, .highlight-box, .glossary-box, .process-box, .conclusion-box {
        padding: 1.5rem;
        margin: 1.5rem 0;
    }

    .container {
        padding: 0 15px;
    }
}

/* Smooth scrolling and performance optimizations */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Print styles */
@media print {
    .navbar, .footer {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    .article-section {
        padding: 1rem 0;
    }
}