body {
    margin: 0;
    font-family: 'Montserrat', Arial, sans-serif;
    background: #f7f9fb;
    color: #222;
}
#root {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.header {
    background: #1a237e;
    color: #fff;
    display: flex;
    align-items: center;
    padding: 10px 32px 8px 32px;
    min-height: 56px;
    box-shadow: 0 2px 8px rgba(30,40,90,0.07);
}
.logo {
    display: flex;
    align-items: center;
    margin-right: 24px;
}
.logo-svg {
    width: 44px;
    height: 44px;
    margin-right: 12px;
    display: block;
}
.logo-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: #fff;
    line-height: 1.1;
}
.logo-sub {
    font-size: 0.95rem;
    color: #b3b8d6;
    font-weight: 400;
    margin-top: 2px;
    line-height: 1.1;
}
.main-layout {
    flex: 1;
    display: flex;
    min-height: 0;
}
.left-panel {
    width: 220px;
    background: #fff;
    border-right: 1px solid #e0e0e0;
    padding: 32px 0 0 0;
    box-shadow: 2px 0 8px rgba(30,40,90,0.03);
}
.games-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.games-list li {
    padding: 12px 32px;
    cursor: pointer;
    font-size: 1.1rem;
    color: #1a237e;
    border-radius: 8px 0 0 8px;
    font-weight: 500;
    transition: background 0.2s, color 0.2s;
}
.games-list li.active, .games-list li:hover {
    background: #e3f2fd;
    color: #0d133d;
}
.content {
    flex: 1;
    padding: 40px 48px;
    background: #f7f9fb;
    min-height: 0;
    overflow-y: auto;
}
.footer {
    background: #222b45;
    text-align: center;
    padding: 18px 0;
    font-size: 1rem;
    color: #fff;
    letter-spacing: 1px;
    box-shadow: 0 -2px 8px rgba(30,40,90,0.07);
}
.footer a {
    color: #ffb300;
    text-decoration: none;
    font-weight: 600;
}
/* Responsive */
@media (max-width: 800px) {
    .main-layout { flex-direction: column; }
    .left-panel { width: 100%; border-right: none; border-bottom: 1px solid #e0e0e0; }
    .content { padding: 24px 12px; }
}