body {
    background: #f4f5f7;
    font-family: 'Segoe UI', 'Arial', sans-serif;
    margin: 0;
    padding: 0;
}

.app-header {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    background: #4B1818;
    color: #fff;
    padding: 22px 0 12px 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    font-size: 1.5em;
    font-weight: bold;
    letter-spacing: 1px;
    margin-bottom: 0;
}

.container {
    max-width: 500px;
    margin: 0 auto;
    padding: 20px 8px 20px 8px;
}

header {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

header h1, .app-header h1 {
    color: #fff;
    font-size: 1.5em;
    margin-bottom: 0;
}

header h2 {
    color: #4B1818;
    font-size: 1.2em;
    margin-bottom: 18px;
    font-weight: bold;
}

#categorias {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.categoria-link {
    text-decoration: none;
}

.categoria-card {
    display: flex;
    align-items: center;
    background: #fff;
    border: none;
    border-radius: 12px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
    padding: 12px 18px;
    transition: box-shadow 0.3s, transform 0.3s;
    width: 100%;
    min-height: 70px;
}

.categoria-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.10);
    transform: translateY(-2px) scale(1.01);
}

.card-img-top {
    width: 48px;
    height: 48px;
    object-fit: cover;
    border-radius: 50%;
    margin-right: 18px;
    border: 2px solid #eee;
    background: #fafafa;
    flex-shrink: 0;
    display: block;
}

.card-body {
    flex: 1;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.card-title {
    color: #333;
    font-size: 1.1em;
    margin-bottom: 0;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-left: 0;
}

.btn-primary {
    background-color: #007bff;
    border: none;
    padding: 6px 16px;
    font-size: 0.95em;
    border-radius: 8px;
    transition: background-color 0.3s;
}

.btn-primary:hover {
    background-color: #0056b3;
}

/* Estilos para os produtos */
.produto-card {
    display: flex;
    align-items: center;
    background: #fff;
    border: none;
    border-radius: 12px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
    padding: 12px 18px;
    margin-bottom: 0;
    transition: box-shadow 0.3s, transform 0.3s;
    width: 100%;
    min-height: 70px;
}

.produto-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.10);
    transform: translateY(-2px) scale(1.01);
}

.produto-card .card-title {
    color: #222;
    font-size: 1.08em;
    font-weight: 600;
    margin-bottom: 2px;
}

.produto-card .card-text {
    color: #666;
    font-size: 0.98em;
    margin-bottom: 2px;
}

.produto-card .preco {
    color: #28a745;
    font-size: 1.05em;
    font-weight: bold;
    margin-bottom: 0;
}

.produto-img {
    width: 44px;
    height: 44px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid #eee;
    background: #fafafa;
    margin-left: 10px;
}

.btn-secondary {
    background-color: #6c757d;
    border: none;
    padding: 8px 20px;
    transition: background-color 0.3s ease;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

@media (max-width: 768px) {
    .container {
        padding: 8px;
    }
    header h1, .app-header h1 {
        font-size: 1.1em;
    }
    header h2 {
        font-size: 1em;
    }
    .card-title {
        font-size: 1em;
    }
    .card-img-top {
        width: 36px;
        height: 36px;
        margin-right: 10px;
    }
    .produto-card, .categoria-card {
        padding: 8px 10px;
        min-height: 56px;
    }
}

.produto-list-item {
    background: #fff;
    border-radius: 0;
    box-shadow: none;
    border-bottom: 1px solid #ececec;
    padding: 12px 0 6px 0;
    display: flex;
    align-items: flex-start;
}

.produto-nome {
    font-weight: bold;
    color: #222;
    font-size: 1.05em;
    margin-bottom: 2px;
    letter-spacing: 0.2px;
}

.produto-preco {
    color: #222;
    font-size: 0.98em;
    margin-bottom: 0;
    margin-top: 0;
}

.categoria-card-flex {
    display: flex;
    align-items: center;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
    padding: 14px 18px;
    margin-bottom: 14px;
    transition: box-shadow 0.2s, transform 0.2s;
    border: none;
}

.categoria-card-flex:hover, .categoria-card-flex:active {
    box-shadow: 0 4px 16px rgba(0,0,0,0.10);
    transform: translateY(-2px) scale(1.01);
    background: #f9fafb;
}

.categoria-img {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 50%;
    margin-right: 16px;
    border: 1.5px solid #e0e0e0;
    background: #fafafa;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    flex-shrink: 0;
    display: block;
}

.categoria-titulo {
    color: #222;
    font-size: 1.08em;
    font-weight: 400;
    letter-spacing: 0.2px;
}