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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fafafa;
}

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

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

.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 {
    color: #6366f1;
    font-weight: 600;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

.nav-link:hover {
    color: #6366f1;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #6366f1;
    transition: width 0.3s ease;
}

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

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

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding-top: 70px;
}

.hero-content {
    flex: 1;
    padding: 40px;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero h2 {
    font-size: 2rem;
    font-weight: 400;
    margin-bottom: 20px;
    opacity: 0.9;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.8;
    max-width: 600px;
}

.cta-button {
    background: #ff6b6b;
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.6);
}

.hero-image {
    flex: 1;
    padding: 40px;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Introduction Section */
.intro {
    padding: 80px 0;
    background: white;
}

.intro-content h2 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
}

.intro-content p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: #666;
}

/* Content Sections */
.content-section {
    padding: 80px 0;
    border-bottom: 1px solid #eee;
}

.content-section:nth-child(even) {
    background: #f8f9fa;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 30px;
}

.section-image {
    width: 300px;
    height: 200px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.content-card {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.content-card:hover {
    transform: translateY(-5px);
}

.content-card h3 {
    color: #6366f1;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.content-card p {
    color: #666;
    margin-bottom: 15px;
}

.content-card ul {
    color: #666;
    padding-left: 20px;
}

.content-card li {
    margin-bottom: 8px;
}

/* Positions Grid */
.positions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.position-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 25px;
    border-radius: 15px;
    text-align: center;
}

.position-card h4 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

/* Reflection Cards */
.reflection-card {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    padding: 30px;
    border-radius: 15px;
    margin: 40px 0;
    text-align: center;
}

.reflection-card h3 {
    color: #8b4513;
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.reflection-card p {
    color: #5d4e37;
    font-style: italic;
}

/* Obstacles and Factors */
.obstacles-section, .factors-section {
    margin: 50px 0;
}

.obstacles-section h3, .factors-section h3 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
    font-size: 2rem;
}

.obstacles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.obstacle-card {
    background: #fff5f5;
    border-left: 4px solid #ef4444;
    padding: 20px;
    border-radius: 10px;
}

.obstacle-card h4 {
    color: #dc2626;
    margin-bottom: 10px;
}

.factors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.factor-card {
    background: #f0f9ff;
    border-left: 4px solid #3b82f6;
    padding: 20px;
    border-radius: 10px;
}

.factor-card h4 {
    color: #1d4ed8;
    margin-bottom: 10px;
}

/* Advice Section */
.advice-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.advice-section {
    padding: 30px;
    border-radius: 15px;
}

.advice-section.do {
    background: #f0fdf4;
    border-left: 4px solid #22c55e;
}

.advice-section.dont {
    background: #fef2f2;
    border-left: 4px solid #ef4444;
}

.advice-section h3 {
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.advice-section.do h3 {
    color: #16a34a;
}

.advice-section.dont h3 {
    color: #dc2626;
}

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

.advice-section li {
    margin-bottom: 15px;
    padding-left: 20px;
    position: relative;
}

.advice-section.do li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #16a34a;
    font-weight: bold;
}

.advice-section.dont li::before {
    content: '✗';
    position: absolute;
    left: 0;
    color: #dc2626;
    font-weight: bold;
}

/* Glossary */
.glossary-section {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.glossary-section h3 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
    font-size: 1.8rem;
}

.glossary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.term {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    border-left: 4px solid #6366f1;
}

/* Navigation Buttons */
.navigation-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 50px;
    gap: 20px;
}

.nav-btn {
    background: #6366f1;
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    flex: 1;
    max-width: 200px;
}

.nav-btn:hover {
    background: #4f46e5;
    transform: translateY(-2px);
}

.nav-btn.prev {
    background: #64748b;
}

.nav-btn.prev:hover {
    background: #475569;
}

/* Intro Text */
.intro-text {
    text-align: center;
    margin-bottom: 40px;
    font-size: 1.1rem;
    color: #666;
}

.intro-text em {
    font-size: 1.3rem;
    color: #6366f1;
    display: block;
    margin-bottom: 20px;
}

/* Footer */
.footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 30px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
    }

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

    .hero {
        flex-direction: column;
        text-align: center;
    }

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

    .hero h2 {
        font-size: 1.5rem;
    }

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

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

    .navigation-buttons {
        flex-direction: column;
    }

    .nav-btn {
        max-width: none;
    }

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

    .intro-content h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

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

    .hero h2 {
        font-size: 1.2rem;
    }

    .section-image {
        width: 100%;
        max-width: 300px;
    }

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

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

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

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

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Active navigation link */
.nav-link.active {
    color: #6366f1;
}

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

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

.content-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Hover effects */
.position-card:hover {
    transform: translateY(-5px);
    transition: transform 0.3s ease;
}

.obstacle-card:hover,
.factor-card:hover {
    transform: translateY(-3px);
    transition: transform 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}