:root {
    --primary-color: #0056b3;
    --text-color: #333;
    --bg-color: #ebebeb;
    --container-bg: #ffffff;
    --border-color: #eaeaea;
    --table-border: #dee2e6;
    --table-head-bg: #f1f3f5;
}

/* Base */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    margin: 0;
    padding: 2rem;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--container-bg);
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* Typography */
h1 {
    text-align: center;
    color: #111;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 1rem;
    margin-bottom: 2rem;
}

h2 {
    color: var(--primary-color);
    margin-top: 2.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

h3 {
    color: #222;
    margin-top: 1.5rem;
    font-size: 1.1rem;
}

p {
    margin-bottom: 1rem;
}

ul {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
}

/* Navbar */
.navbar {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

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

.navbar a:hover {
    text-decoration: underline;
}

/* Table */
.table-responsive {
    overflow-x: auto;
    margin-top: 2rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    min-width: 900px;
}

th, td {
    border: 1px solid var(--table-border);
    padding: 1rem;
    vertical-align: top;
}

th {
    background-color: var(--table-head-bg);
    font-weight: 600;
    text-align: left;
    color: #333;
}

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

.line-break {
    white-space: pre-line;
}

.graphic { 
    max-width: 400px; 
    width: 100%; 
    height: auto;
}