.app-shell {
    min-height: 100vh;
    background: #0b0b0b;
    color: #f5f5f5;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    padding: 1.5rem 1.25rem 6rem;
}

.brand-header {
    text-align: center;
    font-weight: 800;
    font-size: 1.1rem;
    padding: 1.25rem 0 0.25rem;
}

.brand-white {
    color: #ffffff;
}

.brand-red {
    color: #ff3b3b;
}

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 96px;
    background: #141414;
    border-top: 1px solid #2a2a2a;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 0 1.5rem;
    gap: 1rem;
    z-index: 10;
}

.nav-item {
    color: #bdbdbd;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 44px;
    border: 1px solid transparent;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    width: 100%;
    max-width: 160px;
    margin: 0 auto;
    justify-self: center;
    text-align: center;
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.nav-item.active {
    color: #ffffff;
    font-weight: 700;
    border-color: #ff3b3b;
    box-shadow: 0 0 0 2px rgba(255, 59, 59, 0.15);
    background: rgba(255, 59, 59, 0.12);
}

.nav-item:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
}

.nav-logo {
    width: 80px;
    height: 80px;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    border-radius: 999px;
    font-size: 0.7rem;
    letter-spacing: 0.1em;
}

.nav-logo img {
    width: 80px;
    height: 80px;
    border-radius: 10px;
    object-fit: cover;
}

@media (min-width: 768px) {
    .main-content {
        padding: 2rem 2.5rem 7rem;
        max-width: 960px;
        margin: 0 auto;
    }

    .bottom-nav {
        left: 50%;
        transform: translateX(-50%);
        max-width: 720px;
        border-radius: 24px 24px 0 0;
    }
}
