/* Capstone Updates - Minimal Clean Styles */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --text: #1f2937;
    --text-light: #6b7280;
    --bg: #ffffff;
    --bg-alt: #f9fafb;
    --border: #e5e7eb;
    --code-bg: #f3f4f6;
}

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

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

/* Header & Navigation */
header {
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    max-width: 900px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
    text-decoration: none;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

nav a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
}

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

/* Main Content */
main {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

h1, h2, h3, h4 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

h1 {
    font-size: 2rem;
    font-weight: 800;
}

h2 {
    font-size: 1.5rem;
    border-bottom: 2px solid var(--border);
    padding-bottom: 0.5rem;
}

p {
    margin-bottom: 1rem;
}

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

li {
    margin-bottom: 0.5rem;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background: var(--bg);
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border: 1px solid var(--border);
}

th {
    background: var(--bg-alt);
    font-weight: 600;
}

tr:nth-child(even) {
    background: var(--bg-alt);
}

/* Code Blocks */
pre {
    background: var(--code-bg);
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    margin: 1rem 0;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.9rem;
}

code {
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    background: var(--code-bg);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-size: 0.9em;
}

pre code {
    background: none;
    padding: 0;
}

/* Blockquotes */
blockquote {
    border-left: 4px solid var(--primary);
    padding-left: 1rem;
    margin: 1.5rem 0;
    color: var(--text-light);
    font-style: italic;
}

/* Links */
a {
    color: var(--primary);
    text-decoration: underline;
}

a:hover {
    color: var(--primary-dark);
}

/* Footer */
footer {
    border-top: 1px solid var(--border);
    margin-top: 3rem;
    padding: 2rem 1.5rem;
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 640px) {
    nav {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav ul {
        gap: 1rem;
    }
    
    main {
        padding: 1.5rem 1rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
}