:root {
    --primary-color: #3b82f6;
    --text-color: #334155;
    --heading-color: #1e293b;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --header-bg: #1e293b;
    --header-text: #ffffff;
}

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header Styles */
.site-header {
    background-color: var(--header-bg);
    color: var(--header-text);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.site-header .container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.back-button {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.back-button:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.site-header h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Content Styles */
.content {
    background-color: var(--card-bg);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.last-updated {
    font-size: 0.875rem;
    color: #64748b;
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
}

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

section {
    margin-top: var(--spacing-xl);
}

h2 {
    color: var(--heading-color);
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

a:hover {
    color: #2563eb;
    text-decoration: underline;
}

ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

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

.links-list {
    list-style: none;
    padding-left: 0;
}

.links-list li a {
    display: inline-block;
    padding: 2px 0;
}

/* Mobile Responsiveness */
@media (max-width: 640px) {
    .content {
        margin-top: 0;
        margin-bottom: 0;
        border-radius: 0;
        padding-top: var(--spacing-md);
        box-shadow: none;
    }

    .site-header h1 {
        font-size: 1.125rem;
    }
}

/* Home Page Styles */
.home-body {
    background-color: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.home-container {
    width: 100%;
    max-width: 480px;
    padding: var(--spacing-md);
}

.card {
    background-color: var(--card-bg);
    padding: var(--spacing-xl) var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    text-align: center;
}

.home-container h1 {
    color: var(--heading-color);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.subtitle {
    color: #64748b;
    margin-bottom: var(--spacing-xl);
}

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

.nav-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    background-color: white;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}

.nav-button:hover {
    background-color: #f8fafc;
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    text-decoration: none;
}

.nav-button svg {
    color: var(--primary-color);
}