/* Base styles */
:root {
    --primary-color: #00699d;
    --text-color: #121212;
    --secondary-text-color: #444;
    --light-gray: #f7f7f7;
    --border-color: #e5e5e5;
    --header-height: 64px;
    --sidebar-width: 250px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
    height: 100vh;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

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

/* Site layout */
.site-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar styles */
.sidebar-nav {
    width: var(--sidebar-width);
    background-color: var(--light-gray);
    padding: 20px;
    position: fixed;
    height: 100vh;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
}

.logo a {
    display: flex;
    align-items: center;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 40px;
}

.logo svg {
    margin-right: 8px;
}

.side-nav {
    margin-bottom: 40px;
    flex-grow: 1;
}

.side-nav h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--secondary-text-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.side-nav ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.side-nav a {
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s;
    display: block;
    padding: 6px 0;
}

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

.side-nav a.active {
    color: var(--primary-color);
    font-weight: 600;
}

.sidebar-footer {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--secondary-text-color);
    transition: color 0.2s;
}

.sidebar-link:hover {
    color: var(--primary-color);
}

/* Main content styles */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
}

/* Hero section */
.hero {
    padding: 80px 0 60px;
    text-align: center;
}

.hero .container {
    display: block;
    max-width: 1000px;
}

.date-tag {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px;
}

.date {
    font-size: 14px;
    color: var(--secondary-text-color);
}

.tag {
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 500;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.subtitle {
    font-size: 20px;
    color: var(--secondary-text-color);
    max-width: 700px;
    margin: 0 auto 40px;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    background-color: var(--primary-color);
    color: white;
    font-weight: 500;
    padding: 12px 24px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.cta-button:hover {
    background-color: #0c678b;
}

.cta-button span {
    margin-left: 8px;
}

/* Content section */
.content {
    padding: 40px 0 80px;
}

.content .container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 48px;
}

.text-content {
    font-size: 18px;
    max-width: 68%;
    flex: 1;
    min-width: 0; /* Ensure text can shrink if needed */
}

.text-content p {
    margin-bottom: 24px;
}

.text-content h2 {
    font-size: 32px;
    font-weight: 700;
    margin: 48px 0 24px;
    scroll-margin-top: 80px;
}

.note {
    font-style: italic;
    color: var(--secondary-text-color);
    font-size: 16px;
}

.feature-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 32px 0;
    scroll-margin-top: 80px;
}

.feature-button {
    background-color: var(--light-gray);
    border: none;
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.feature-button:hover {
    background-color: #e5e5e5;
}

.feature-button.active {
    background-color: var(--primary-color);
    color: white;
}

.demo-image {
    margin: 32px 0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.demo-caption {
    padding: 16px;
    background-color: var(--light-gray);
}

.demo-caption p {
    margin: 0;
    font-size: 16px;
}

/* Sidebar */
.sidebar {
    width: 28%;
    min-width: 240px;
}

.sidebar-links {
    position: sticky;
    top: 20px;
    background-color: var(--light-gray);
    padding: 20px;
    border-radius: 8px;
}

.sidebar-links h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.sidebar-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-links a {
    font-size: 15px;
    color: var(--secondary-text-color);
    transition: color 0.2s;
}

.sidebar-links a:hover {
    color: var(--primary-color);
}

/* Footer */
footer {
    background-color: var(--light-gray);
    padding: 48px 0 24px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 24px;
}

.footer-links {
    display: flex;
    width: 100%;
    justify-content: space-between;
    align-items: center;
}

.footer-social {
    display: flex;
    gap: 20px;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary-text-color);
    transition: color 0.2s;
    font-size: 24px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.03);
}

.social-icon:hover {
    color: var(--primary-color);
    background-color: rgba(0, 0, 0, 0.05);
}

.footer-link {
    font-size: 16px;
    font-weight: 500;
    color: var(--secondary-text-color);
    transition: color 0.2s;
}

.footer-link:hover {
    color: var(--primary-color);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--secondary-text-color);
    text-align: center;
}

/* Responsive styles */
@media (max-width: 1024px) {
    .content .container {
        flex-direction: column;
    }

    .text-content {
        max-width: 100%;
    }

    .sidebar {
        width: 100%;
        margin-top: 20px;
    }
}

@media (max-width: 768px) {
    .site-wrapper {
        flex-direction: column;
    }
    
    .sidebar-nav {
        width: 100%;
        height: auto;
        position: relative;
        padding: 15px;
    }
    
    .main-content {
        margin-left: 0;
        width: 100%;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
}