:root {
    --footer-height: 35px;
    --sidebar-width: 220px;
}

body {
    background-color: #f5f5f5;
    font-family: 'Inter', Arial, sans-serif;
    color: #1f2933;
    margin: 0;
    min-height: 100vh;
}

.layout {
    display: flex;
    min-height: 100vh;
    padding-left: var(--sidebar-width);
    padding-bottom: var(--footer-height);
    box-sizing: border-box;
}

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: var(--footer-height);
    width: var(--sidebar-width);
    background-color: #282a3c;
    padding: 1.5rem 1rem;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.12);
    overflow-y: auto;
}

.sidebar-logo {
    display: block;
    width: 100%;
    max-width: 200px;
    height: auto;
    margin: 0 auto 1.25rem;
}

.sidebar h2 {
    margin-top: 0;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #ffffff;
}

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

.nav-links li {
    margin-bottom: 0.75rem;
}

.nav-links a {
    color: #9496a6;
    text-decoration: none;
    font-weight: 600;
    position: relative;
    padding-left: 18px;
}

.nav-links a:hover,
.nav-links a:focus {
    color: #ffffff;
}

.nav-links a::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #ffffff;
    font-weight: 800;
}

.content {
    padding: 0.5rem 2rem 2rem;
    flex: 1;
    background-color: #f5f5f5;
    max-height: calc(100vh - var(--footer-height));
    overflow-y: auto;
}

.content-header {
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 6px;
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

h1 {
    margin-top: 0;
}

ul {
    padding-left: 1.2rem;
}

.site-header {
    position: sticky;
    top: 0;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 0, 0, 0.04);
    z-index: 4;
}

.site-footer {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    height: var(--footer-height);
    background: #ffffff;
    color: #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.12);
    z-index: 5;
}

.site-footer .footer-inner {
    width: 100%;
    max-width: 1200px;
    padding: 0 2rem;
    text-align: center;
}

.site-footer .footer-text {
    font-weight: 600;
    letter-spacing: 0.02em;
}

.site-header h1 {
    margin: 0;
    color: #0b7285;
}

.site-header .tagline {
    margin: 0.35rem 0 0;
    color: #4a5568;
    font-weight: 500;
}