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

:root {
    --primary-color: #5865F2;
    --secondary-color: #57F287;
    --text-color: #2C2F33;
    --bg-color: #FFFFFF;
    --card-bg: #F8F9FA;
    --border-color: #E0E0E0;
    --hover-color: #4752C4;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    overflow-x: hidden;
}

html {
    overflow-x: hidden;
}

.navbar {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .nav-container {
    position: relative;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.nav-menu a:hover,
.nav-menu a.active {
    opacity: 0.8;
    text-decoration: underline;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.hero {
    text-align: center;
    padding: 3rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--hover-color) 100%);
    color: white;
    border-radius: 10px;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 1.25rem;
    opacity: 0.95;
}

.content {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.content h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 2rem;
}

.content h3 {
    color: var(--text-color);
    margin: 1.5rem 0 1rem 0;
    font-size: 1.5rem;
}

.content p {
    margin-bottom: 1rem;
    color: #555;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.feature-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.feature-card h3 {
    margin: 0.5rem 0;
    font-size: 1.25rem;
}

.feature-card p {
    color: #666;
    font-size: 0.95rem;
}

.cta-section {
    text-align: center;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 8px;
    margin: 2rem 0;
}

.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: background-color 0.3s;
    margin-top: 1rem;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

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

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

.news-section {
    margin: 3rem 0;
    padding: 2rem;
    background: linear-gradient(135deg, #F8F9FA 0%, #E9ECEF 100%);
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
}

.news-section h2 {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    font-size: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.news-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.news-item {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    border-left: 3px solid var(--primary-color);
}

.news-item:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.news-item h3 {
    color: var(--primary-color);
    margin: 0.5rem 0 1rem 0;
    font-size: 1.5rem;
}

.news-item p {
    color: #555;
    margin: 0;
    line-height: 1.6;
}

.news-date {
    color: #6C757D;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.info-section {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.link-list {
    list-style: none;
    padding: 0;
}

.link-list li {
    margin: 0.75rem 0;
}

.link-list a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.link-list a:hover {
    color: var(--hover-color);
    text-decoration: underline;
}

footer {
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
    color: #666;
    border-top: 1px solid var(--border-color);
}

.code-block {
    background: #2C2F33;
    color: #F8F9FA;
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
    margin: 1rem 0;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.code-block code {
    color: #57F287;
}

.section {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.section h3 {
    margin-top: 0;
}

ul, ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

li {
    margin: 0.5rem 0;
}

/* Mobile Menu Toggle Button */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    min-width: 44px;
    min-height: 44px;
}

.menu-toggle:hover {
    opacity: 0.8;
}

/* Mobile Styles */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 0 1rem;
    }

    .menu-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--primary-color);
        flex-direction: column;
        gap: 0;
        padding: 1rem 0;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        z-index: 999;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
        padding: 0;
    }

    .nav-menu a {
        display: block;
        padding: 1rem 2rem;
        width: 100%;
        text-align: left;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .nav-menu a:hover {
        background-color: rgba(255,255,255,0.1);
    }

    .hero {
        padding: 2rem 1rem;
        margin-bottom: 2rem;
    }

    .hero h1 {
        font-size: 2rem;
        line-height: 1.2;
    }

    .subtitle {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .hero > div {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .hero .btn {
        width: 100%;
        max-width: 300px;
        margin: 0 !important;
        text-align: center;
        font-size: 1rem;
        padding: 0.875rem 1.5rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .container {
        padding: 1rem;
    }

    .content {
        padding: 1.5rem;
    }

    .content h1 {
        font-size: 1.75rem;
        line-height: 1.3;
    }

    .content h2 {
        font-size: 1.5rem;
        line-height: 1.3;
    }

    .content h3 {
        font-size: 1.25rem;
        line-height: 1.3;
    }

    .news-section {
        padding: 1.5rem;
        margin: 2rem 0;
    }

    .news-section h2 {
        font-size: 1.5rem;
    }

    .news-item {
        padding: 1rem;
    }

    .news-item h3 {
        font-size: 1.25rem;
    }

    .cta-section {
        padding: 1.5rem;
    }

    .cta-section .btn {
        width: 100%;
        max-width: 300px;
        margin: 0.5rem 0 !important;
        display: block;
        margin-left: auto;
        margin-right: auto;
    }

    .code-block {
        font-size: 0.85rem;
        padding: 0.875rem;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        word-wrap: break-word;
        word-break: break-all;
    }

    .section {
        padding: 1.25rem;
        margin: 1.5rem 0;
    }

    ul, ol {
        margin-left: 1.5rem;
        padding-left: 0.5rem;
    }

    footer {
        padding: 1.5rem 1rem;
        font-size: 0.9rem;
    }

    .info-box {
        padding: 1rem !important;
        margin: 1.5rem 0 !important;
    }

    .info-box p {
        font-size: 0.95rem;
        line-height: 1.5;
    }
}

/* Extra small devices */
@media (max-width: 480px) {
    .nav-brand h1 {
        font-size: 1.25rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .subtitle {
        font-size: 0.95rem;
    }

    .content h1 {
        font-size: 1.5rem;
    }

    .content h2 {
        font-size: 1.35rem;
    }

    .content h3 {
        font-size: 1.15rem;
    }

    .container {
        padding: 0.75rem;
    }

    .content {
        padding: 1rem;
    }

    .code-block {
        font-size: 0.8rem;
        padding: 0.75rem;
    }
}