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

body {
    font-family: 'Courier New', Courier, monospace;
    background: #000000;
    min-height: 100vh;
    color: #ffffff;
    display: flex;
}

.sidebar {
    width: 340px;
    background: #000000;
    border-right: 1px solid #222;
    padding: 1.5rem 1.5rem 2rem 1.5rem;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sidebar ul {
    margin: 0rem;
}

.logo {
    text-align: left;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #222;
}

.logo a {
    text-decoration: none;
}

.logo img {
    max-width: 80px;
    height: auto;
    opacity: 0.9;
}

.nav-menu {
    list-style: none;
    margin-top: 0.5rem;
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.nav-item {
    margin: 0.3rem 0;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #999;
    text-decoration: none;
    padding: 0.85rem 1.25rem;
    border-radius: 0px;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    background: transparent;
    border: 1px solid transparent;
    letter-spacing: 0.01em;
}

.nav-link svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.nav-link:hover svg {
    opacity: 1;
}

.nav-link.external {
    position: relative;
}

.nav-link.external svg.external-icon {
    width: 14px;
    height: 14px;
    margin-left: auto;
}

.nav-link:hover {
    background: #111111;
    color: #fff;
    border-color: #333;
}

.nav-link.active {
    background: #111111;
    color: #fff;
    border-color: #333;
}

.stats-box {
    background: transparent;
    border: none;
    padding: 0;
    margin-top: auto;
    padding-top: 2rem;
    border-top: 1px solid #222;
}

.stat {
    margin: 0.6rem 0;
    padding: 0;
    border-bottom: none;
}

.stat-label {
    font-size: 0.65rem;
    color: #555;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.25rem;
    font-weight: 400;
}

.stat-value {
    font-size: 1.1rem;
    font-weight: 500;
    color: #fff;
    letter-spacing: -0.01em;
}

.loading {
    color: #555;
    font-size: 0.9rem;
}

.error {
    color: #ff6b6b;
    font-size: 0.8rem;
}

.update-time {
    font-size: 0.6rem;
    color: #444;
    margin-top: 1rem;
    padding-top: 0;
    border-top: none;
    text-align: left;
    letter-spacing: 0.05em;
}

.main-content {
    margin-left: 340px;
    flex: 1;
    overflow-y: auto;
    min-height: 100vh;
    background: #000000;
}

@media (max-width: 968px) {
    body {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        position: relative;
        height: auto;
        border-right: none;
        border-bottom: 1px solid #222;
        padding: 1.5rem;
    }

    .main-content {
        margin-left: 0;
    }

    .logo {
        margin-bottom: 1.5rem;
        padding-bottom: 0.75rem;
        border-bottom: 1px solid #222;
    }

    .logo img {
        max-width: 70px;
    }

    .stat-value {
        font-size: 1rem;
    }

    .stat {
        margin: 0.5rem 0;
    }

    .nav-menu {
        margin-bottom: 1.5rem;
    }

    .stats-box {
        margin-top: 1.5rem;
        padding-top: 1.5rem;
        border-top: 1px solid #222;
    }
}